Catalog Index Electrical Installation Technology ( / ) Miniature Circuit-Breakers, Residual Current Operated Circuit-Breakers and Modular Devices (Chi

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1 Miniature Circuit-Breakers, Residual Current Operated Circuit-Breakers and Modular Devices 2001 Miniature Circuit-Breakers, Residual Current Operated Circuit-Breakers and Modular Devices 2001 Catalog

2 Catalog Index Electrical Installation Technology ( / ) Miniature Circuit-Breakers, Residual Current Operated Circuit-Breakers and Modular Devices (Chinese/English) Low-Voltage Fuse Systems Terminal Electrical Distribution and Protection Products ( / ) (Chinese/English) ( ) (Chinese) SIKUS STAB UNIVERSAL 630A 6400A ( ) SIKUS and STAB UNIVERSAL (Chinese) From 630A to 6400A Low-Voltage Electrical Distribution Cabinet instabus EIB Sentron Sentron Busway ( ) (Chinese) ( / ) (Chinese/English) Low-Voltage Controls and Distribution Low-Voltage Control Equipment, Switchgear and Systems (NSK) Controls and Distribution (NSK) UL Electrical Products SPEEDFAX TM 1998 ( / ) (Chinese/English) ( ) (English) ( ) (English) Please contact your Siemens Representative for the catalogs. Your contact person at Siemens name: Telephone: Fax:

3 Miniature Circuit-Breakers Residual Current Operated Circuit - Breakers and Modular Devices 1 Miniature circuit-breakers 1/1 Connection examples 1/3 Technical description 1/38 Selection and ordering data 1/55 Dimension drawings 2 Residual Current Operated Circuit-Breakers (FI) 2/1 Foreword to electromechanic type (FI) Residual Current Operated Circuit-Breaker (RCCBs) technical article 2/11 Technical description (RCCBs) 2/20 Residual Current Operated Circuit-Breakers (RCCBs) (RCBOs) 2/32 Residual Current Operated Circuit-Breakers with intergal Overcurrent Protection (RCBOs) SIMBOX 3 Small distribution boards 3/1 Technical description 3/2 Selection and ordering data 3/5 Accessories 3/8 Dimension drawings 3/10 Mounting reference 4 Modular devices 4/1 Switch, push button, contactor 4/11 Dimension drawings 4/16 Relay, monitor, time switch, electric switch 4/23 Dimension drawings 5SD7 05 4/25 5SD7 05 lightning current and surge arresters 4/32 Dimension drawings 5 Insulation and monitoring protection 5/1 Technical description 5/4 Selection and ordering data 5/24 Dimension drawings

4 Miniature Circuit-Breakers 1/0

5 Miniature Circuit-Breakers Connection examples 1 25mm 2 5ST Feeder cables from below with cross sections up to 25mm 2 and triple-pole 5ST2 144 busbars can be simultaneously connected at the combination terminal of the MCB. 35mm 2 5ST ST2 166 Feeder cables from below with cross sections up to 35mm 2 and double-pole 5ST2 143 busbars can be simultaneously connected using the terminal 5ST Cables connected from the top use the same principle. 1/1

6 Miniature Circuit-Breakers Connection examples 35mm 2 5ST ST2 144 Feeder cables from above with cross sections up to 35mm 2 and at 5ST2 144 busbars through supplementary terminal 5ST mm 2 5ST2 165 Feeder cables with cross sections up to 25mm 2 and 5ST2 165 busbars can be simultaneously connected at the combination terminal of the MCB using the auxiliary contacts mounted on-site. 1/2

7 against overloads and shortcircuits. (MCB) These miniature circuit breakers, which are designed and manufactured with the most advanced techniques, cover all the requirements concerning electrical installations. Modular miniature circuit breakers represent the optimum technical and economic solution in all sectors: industrial, public and (IEC 898) high-tech public, domestic., 0.3 These miniature circuit-breakers 125A 230V are produced according to the 400V international standards in force (IEC 898) and are divided into : seven series, covering a range between 0.3 A and 125 A under the voltage of 230/400 V. The miniature circuit breakers have this in common: they can be EN used in almost all environments, DIN from domestic to industrial. 35mm The various proposed series are distinguished by their rated short- capacity, as well as by the DIN : 18mm circuit (1 ) ( accessories and auxiliary releases ) 45mm associated with them. They are snap-mounted on The modular circuit-breakers symmetric sectioned rails of 35 presented in this chapter are mm in accordance with standards Miniature EN and DIN Circuit Breakers (M.C.B.) which Miniature circuit breaker sizes can be used in Low Voltage comply to the standard DIN electrical installations to protect 43880: 18 mm module (1 pole), conductors, switchgear, and front window height equal to electrical equipment in general 45mm. Miniature Circuit-Breakers The range 1 The miniature circuit breakers are designed with the Siemens-enhanced systems dynamic program. 1/3

8 Miniature Circuit-Breakers The range 1) n (A) Series Short-Circuit Capacity 1) 230/400 V~ Tripping Application Sector Page Characteristic /building /industrial 1/38 /building /industrial 1/40 /building /industrial 1/42 /building /industrial 1/44 /building /industrial 1/46 Version for DC /industrial 1/48 1) (A) IEC 898 IEC The value indicated in black in the rectangle corresponds to the rated value in A according to the standard IEC 898; the value indicated in red refers to the standard IEC ) 1P+N (1P+N=1 MW=18mm) 1 P + N version in one Module Width unit (MW = 18mm). 3) VDE DC short-circuit capacity according to the standard VDE 0641, Part 12. 1/4

9 Miniature Circuit-Breakers Technical data N N IEC 898 / 10kA DIN VDE 0100 ( ) 430 A, B, C, D DIN VDE DIN VDE (5SP4) N EN (5SP4) (5SP4) DIN VDE t Insertion guide for fast and easy EN access to the terminal DIN VDE IEC 898 DIN VDE Features 50% High rated short-circuit capacity N up to A according to IEC (AC) Functional design, mode of (FC) (ST) operation 898 Excellent current limiting and selectivity (UR) Applications MCBs of the N System primarily protect cables and conductors against overload and short circuit. They also protect electrical equipment against overheating according to DIN VDE 0100 Part 430. Under certain conditions MCBs protect against shock currents caused by excessive touch voltage due to insulation failure according to DIN VDE 0100 Part 410. Further, due to the fixed current settings of MCBs, it is also possible to protect motors in a limited form. For the following applications, there are four different tripping characteristics available which will be individually described. The standards EN , DIN VDE 0641 Part 11 and IEC 898 form the basis for the mechanical design and approval of the MCBs. For applications in industry and in system and plant engineering where MCBs of the N System are used, add-on accessories are available, such as auxiliary contacts (AC), fault-signal contacts (FC), shunt trips (ST) and undervoltage releases (UR). MCBs of the N System operate using a delayed overcurrent/timedependent thermal trip (thermal bimetal) for low overcurrents and an instantaneous electromagnetic trip for higher overload and shortcircuit currents. The special contact materials used assure a long service life and offer a high level of safety against contact welding. MCBs of the N System significantly limit the let-through current when a fault occurs due to the ultra-fast contact separation and the quick quenching of the emergency arc in the arc-chamber. Thus, generally, they fall below the permissible limiting 2 t values of energy limiting class 3, specified in DIN VDE 0641 Part 11 by 50%. This guarantees excellent selectivity with the upstream protective devices. Tripping characteristics A, B, C and D Add-on accessories quick mounting using snap-on mechanism Combined terminal allows busbar and feeder cable to be simultaneously connected Disconnector characteristics according to DIN VDE 0660 Part 107 (5SP4) Main switch characteristics according to EN (5SP4) Separate switch position indicator (5SP4) Safe from finger touch and safe from touch by the back of the hand acc. to DIN VDE Part 100 Handle locking device effectively prevents unauthorised operation of the handle 1 1/5

10 Miniature Circuit-Breakers Technical description Tripping characteristics 30 C Tripping performance at a 30 C ambient temperature 63A In 125A Standards Tripping Thermal release High test Tripping time Electromagnetic Trips latest Tripping time characteristics Test currents current 63A In 125A release Test at low test current currents hold I 1 I 2 t I 4 I 5 t A 1.13 x I n >1h >2h 2 x I n 0.1s 1.45 x I n <1h <2h 3 x I n < 0.1s IEC 898/EN B 1.13 x I n >1h >2h 3 x I n 0.1s DIN VDE x I n <1h <2h 5 x I n < 0.1s IEC 898/EN DIN VDE 0641 Part 11 C 1.13 x I n >1h >2h 5 x I n 0.1s 1.45 x I n <1h <2h 10 x I n < 0.1s D 1.13 x I n >1h >2h 10 x I n 0.1s 1.45 x I n <1h <2h 20 x I n < 0.1s 10 5% 30 C 30 C At other operating temperatures, the currents of the delayed tripping change by approximately 5% for each 10K temperature difference, and more specifically they increase for lower and decrease for higher temperatures than 30 C. DC ( ) 1.2 For DC, the limit currents of the instantaneous release increase by a factor 1.2 1/6

11 Miniature circuit-breaker tripping characteristics t 300 Miniature Circuit-Breakers Technical data 1 60 I 1 I 2 sec. min I 3 "A" B C D 0,1 I 4 I 5 I 5 I 5 I 5 I 4 I 4 I 4 0, I n t m { { I 1 (t 1h) I 2 (t <1h) I 4 (t 0,1s) I 5 (t < 0,1s) A B C D 1,13 I n 1,45 I n 2 I n 3 I n 1,13 I n 1,45 I n 3 I n 5 I n 1,13 I n 1,45 I n 5 I n 10 I n 1,13 I n 1,45 I n 10 I n 20 I n t = t = thermal tripping m = m = magnetic tripping / I 4 / I /7

12 Miniature Circuit-Breakers Technical data Selection of miniature circuit-breakers vs. tripping characteristics Tripping Miniature Description of the tripping characteristics Application characteristics circuit-breakers of the miniature circuit-breakers type A 5SX2 A ( ) 1) ( n 2~3 ) 2 t Characteristic A must be used when instantaneous (non-delayed) tripping of the circuit-breaker is desired,even for low value default currents of 2 to 3 1) n, to limit the 2 t and total breaking time. This characteristic allows limited protecting the electronic components against overcurrents by using a circuit-breaker instead of a fuse. Protection of semiconductor devices B 5SQ35 5SX2 5SX4 5SX5 5SP4 B A B < 3 n Characteristic B generally allows obtaining instantaneous tripping of B the circuit-breaker for not very high short-circuit currents. Contrary to characteristic A, characteristic B allows applying loads with relatively low peak currents < 3 n. C 5SQ35 5SX1 5SX2 5SX4 5SX5 5SP4 Protection of transformer secondary circuits C C 5 (5 n ) Characteristic C is the most used because it is suitable for practically all electrical circuits; it allows applying loads having high peak currents without requiring the circuit-breaker to be oversized. In fact, thanks to this characteristic, it is possible to apply loads with peak currents up to 5 n. D 5SX2 5SP4 Protection of electrical circuits in general D (<10 n ) Characteristic D is recommended for switchgear having particularly D high peak currents < 10 n. It is suitable, for example, for transformer primary circuits and solenoid valves. Protection of transformer primary circuits 1) n = 1/8 n = the circuit breaker's rated current.

13 Miniature Circuit-Breakers Technical characteristics I n A, B, C, D ( ) ( 1.6) 1/7 I 2 t 2I n 20I n CEI 23-3/4 a (U e ) 30 C B C D 30 C B C D ( ) C 5% 0.3A 125A C 240/415V 50/60Hz 0.3, 0.5, 1, 1.6, 2, 3, 4, 6, 8, 10, 13, 16, 20, D TT TN IT 25, 32, 40, 50, 63, 80, 100, 125A 5SP4 230/400V cosϕ = kw 230/400V 220/380V 240/ 415V 230/400V 120V æ A, B, C, D 60V 30 C æ IP+N IP 5SX5 220V æ1p A, B, C, D I f 1.45I n 440V æ 2P I nf 1.13 I n 1 Ub i 5SX L i, U UN Ub 3, x In B C D UN G ~ carico R i CEI 23-3 ta t (ms) x In Un Icc - - Ub i ta B C D CEI /9

14 Miniature Circuit-Breakers The miniature circuit breakers N are the circuit breakers of limitative type since they foresee the time of tripping so briefly as to limit considerably not only the peak values of short circuit current (Fig. 1.6), but also the passing specific energy I 2 t. Rated operating voltages (U e ) The rated operating voltage of a circuit breaker is the value of voltage assigned by the constructor, to whom the performances are reported (in particular the performance in short circuit). At the same circuit breaker, different rated voltages and different rated short circuit capabilities can be assigned. All the automatic circuit breakers N are foreseen for the functionality not only in alternating current, but also in direct current. In alternating current, the circuit breakers N can be used in networks with rated voltages up to 240/415V for frequencies also different from 50/60 Hz and in each distribution system: TT, TN, IT. In relation to the functionality in alternating current, all the circuit breakers N are marked with the new normal values of rated voltage of 230/400V, considering the published new rated voltage of distribution of electric energy fixed at 230/400V at European level. The rated voltage of the existing networks at 220/380V and 240/415V should develop toward the rated value of 230/400V. As far as the functionality in direct current is concerned, all the automatic circuit breakers N can be used in circuits up to 120V DC for the bipolar executions with two protected poles and 60V DC for the executions 1P+N and IP. For high voltages, the Series 5SX5 offers the possibility of use up to 220V æ 1P, 440V æ 2P. Rated currents I n The rated current is the value of current assigned by the constructor, which the circuit breaker is destined to carry in uninterrupted service at a reference ambient temperature specified. The reference ambient temperature for the automatic circuit breakers that comply with the Standard CEI 23-3/4 a Edition is 30 C. If the ambient temperature where the circuit breaker is installed is higher or lower than 30 C, the rated current of the circuit breaker should be measured at such temperature by means of proper corrective coefficients. For the circuit breakers N, the values of rated currents indicated in nameplate decrease or increase by 5% respectively for each increase or decrease of temperature by 10 C. The rated currents of the circuit breakers N cover a field included between 0.3 and 125A, the maximum value laid down in the Standard CEI 23-3/4 a Edition, and to be more precise, the values are: 0.3, 0.5, 1, 1.6, 2, 3, 4, 6, 8, 10, 13, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125A. The corresponding maximum power that the circuit breakers N can therefore control is 86.5 kw at cos ϕ = 1 with the Series 5SP4. The characteristics of tripping A, B, C, D The automatic circuit breakers N have a wide range of characteristics of tripping properly defined to satisfy any requirement of unit: protection of electronic units located at transformers. These characteristics of tripping are marked respectively by the letters A, B, C, D and have the reference ambient temperature 30 C in Technical characteristics accordance with the Standard CEI 23-3/4 a Edition. The zone of tripping at inverse time, thermal relay tripping, is the same for all the four characteristics: the conventional tripping current I f is equal to 1.45 I n, while the conventional non-tripping current I nf is 1.13 I n. The difference among the different characteristics A, B, C, D consists however in the different values that delimit the zone of instantaneous tripping (magnetic tripping). As we may note from page 1/7, the four tripping characteristics cover a field of instantaneous tripping included between 2 I n and 20 I n. The zones B, C, D of instantaneous tripping of the automatic circuit breakers N The characteristics of tripping B, C, D defined in the Standard CEI 23-3 have the limit values of the respective zones of instantaneous tripping, as indicated in Fig As we may note always from the above figure, the limits of the zones of instantaneous tripping of the circuit breakers N, thanks to the minimum values of constructive tolerances and to a more precise calibration of the electromagnetic release, turn out to be more restrictive: in particular, the values 3 I n, 5 I n and 10 I n of the Standard CEI 23-3 become 3.5 I n, 7 I n and 15 I n. The advantage that is offered consequently by the automatic circuit breakers N is to withstand better the starting current of the utilities, in particular when it is decided to use the characteristic C or D. i i, U Ub 3, x In Ub 5SX L UN Limitation of short circuit current Circuit breakers N B C D UN G ~ carico R i CEI 23-3 ta t (ms) x In Un Icc - Voltage of network - Presumed short circuit current Ub i ta - Arc voltage - Limited short circuit current - Delay time of contact gap Fig. 1.1 Tripping of an inductive circuit with limitation of fault current on the part of a circuit breaker N Fig. 1.2 Fields of instantaneous tripping B, C, D of the automatic circuit breakers N in comparison to those defined in the Standard CEI /10

15 A B C D executed by applying the single relation: I b I n I z I b Operating current I b I n I z I b - I n - I z - I n Rated current of the circuit breaker I z Capacity of cable The ample zone of instantaneous tripping covered by the set of the fields A, B, C, D allows the use of the circuit breakers N for the most A B C D diversified applied typologies: the protection of electronic units located at transformers. The homogeneity with which the four A B C D characteristics A, B, C, D have been defined ( ) (same reference ambient temperature, same thermal characteristic) and absence of superposition of the individual fields of instantaneous tripping facilitate the selection of characteristic most suitable for the required type of application. The zones of instantaneous tripping have been ( ) largely contained as prescribed in the standard to allow the insertion of charges with the elevated starting currents. N The capability of rated short circuit and of EN real effective maximum short circuit The capability of short circuit (closing and EN tripping) is the value of the presumed alternating EN (IEC 947-2) current component, expressed in its effective value, which the circuit breaker is in a position to decide and carry for its time of opening and interruption under specified conditions. Each automatic circuit breaker N of the 1P 230/400V~ different series is characterized by having 2P 230 or 400V~ three capabilities of short circuit: 1P+N 230V~ The rated capability of short circuit, refer to 3P, 3P+N 400V~ the Standard EN (CEI 23-3/4 a Edition) The effective maximum capability of short circuit, refer always to the Standard EN EN The effective maximum capability of short circuit, refer to the Standard EN (IEC 947-2). Each capability of short circuit is later referred according to the different polar executions at a Miniature Circuit-Breakers well determined rated voltage that can be: 1P 230/400V~ 2P 230 or 400V~ 1P+N 230V~ 3P, 3P+N 400V~ The rated capability of short circuit, which is one that is indicated on the nameplate of the circuit breaker, as prescribed in the Standard CEI 23-3/4 a Edition, is represented by a normal value among those defined in the above standard. The rated capability of short circuit as per EN should be indicated in nameplate, in ampere in a rectangular and without the symbol of measurement unit. The effective maximum capability of short circuit of the automatic circuit breakers N shows however the presumed maximum value of short circuit current, which the automatic circuit breakers are effectively in a position to interrupt. As we may note such capability of short circuit in general increases with the decrease of the rated current of the circuit breaker itself. Passing specific energy I 2 t The function of an automatic circuit breaker is in general to prevent electric conductors and electric units from thermal and dynamic stresses. More effectively a circuit breaker performs such task, more capably it limits the specific energy I 2 t, known as the integral of Joule or passing energy. Such integral is appraised between the moment of beginning of overcurrent and the moment at which there is the complete arc extinction in all the poles of the circuit breaker. t f E sp = i 2 dt to Esp = specific energy (A 2 s) In particular, the passing energy related to a sinusoidal semiwave of current of effective value Icc equals to: I 2 cc Esp = 100 For Icc = 100 A Technical characteristics Esp = 100 A 2 s 1 I 2 t I 2 t t f Esp = i 2 dt t o Esp = specific energy (A 2 s) I cc I 2 cc E sp = 100 Icc = 100A Esp = 100A 2 s The advantages of characteristics A, B, C, D of the automatic circuit breakers N For all the characteristics of tripping, the coordination between circuit breaker and cable to ensure the protection against overload is Y 2 Icc Fig. 1.3 Passing specific energy related to a semiwave of current with sinusoidal movement Fig. 1.4 Movement of the specific energy let through an automatic circuit breaker according and of maximum value 2 Icc. to the angle of insertiony related to the voltage wave 1/11

16 Miniature Circuit-Breakers Technical characteristics Weakly limitative circuit breaker Limitative circuit breaker Field of limitation 1.5 I 2 t Fig. 1.5 Characteristic I 2 t of an miniature circuit breaker 1/12

17 Miniature Circuit-Breakers I 2 t I 2 t EN presumed current is, the higher the limitation of I 2 t CEI 23-3/4 a (EN 60898) thermal or dynamic effects on the cables and (I 2 t) I 2 t on the other operating units will be. I 2 t (a) ( ) The characteristics I 2 t and the Standard EN (b) I 2 t EN classes of limited energy (1 2 The curves I 2 t of the automatic circuit breakers I 2 t 3) complying with the Standard CEI 23-3/4 a Edition (EN 60898) should be clearly reported in 6000 the catalogs of the manufacturers, as specified 3 in the standard itself. 6000A 3 EN In addition, if the circuit breakers are classified also according to the limits, inside which their characteristics I 2 t are contained always in conformity with quantity specified in the Standard EN 60898, the number of class of limitation (1, 2 or 3) put in a square should be 5SX SX correspondingly clearly indicated in nameplate, 3 3 in addition to the capability of tripping. I 2 t 3 The symbol 6000 defines, for example, a circuit The characteristics I 2 t 1.6 S The curves or characteristics I 2 t show the movement of the passing maximum specific I 2 t k 2 S 2. energy (I 2 t) let through the automatic circuit Fig. 1.6 Protection of a conductor against the breakers according to the presumed short short circuits through an miniature circuit circuit current. breaker as per the Standard CEI 64-8: the Each single characteristic I 2 t is composed of conductor of section S turns out to be two curvilinear segments: the first segment protected against the short circuit currents if (a), with concavity turned upward, is related to the following relation is satisfied: I 2 t k 2 S 2. the thermal release (bimetallic), while the second segment (b), with concavity turned downward, is related to the electromagnetic release. This second curve segment is one that defines the quality of the performances on short circuit of the circuit breaker: the lower the value of let-through I 2 t for a determined value of the Technical characteristics 3 breaker with a rated capability of tripping of ( 1.7) 6000 A and with a class of limitation 3, the most severe among the three classes defined in the Standard EN Therefore, this brings a great benefit for the designer and installer to read such data on nameplate of the circuit breaker, while understand the class of limitation, since such data have a first and immediate indication on the type of performance that the circuit breaker is in a position to offer in case of short circuit with reference to the protection of conductor and to selectivity. The circuit breakers 5SX and 5SX limiting the maximum values to values 3 even lower than half of values related to the class of limitation 3 of I 2 t offer the amplest guarantee of security in the protection of electric units against overcurrent (Fig. 1.7) 1 I 2 t (A 2 S) ~ I 2 t (A 2 S) ~ SX A 10A 8A 6A A SX A 10A 8A 6A A EN I 2 t C; P. I. n. = EN I 2 t C; P. I. n. = 10000A; In 16A; 1P; 1P+N, 3P, 3P+N; 2P (230V~) Class of limitation of the passing specific energy I 2 t as per EN 60898: characteristic of tripping C; P. I. n. = 10000A; In 16A; 1P; 1P+N, 3P, 3P+N; 2P (230V~) 6000A; In 16A; 1P; 1P+N, 3P, 3P+N; 2P (230V~) Class of limitation of the passing specific energy I 2 t as per EN 60898: characteristic of tripping C; P. I. n. = 6000A; In 16A; 1P; 1P+N, 3P, 3P+N; 2P (230V~) 1.7a 5SX4 I 2 t Fig. 1.7a Values of I 2 t let through the circuit breakers 5SX4. 1.7b 5SX2 I 2 t Fig. 1.7b Values of I 2 t let through the circuit breakers 5SX2. 1/13

18 Miniature Circuit-Breakers Technical characteristics ( ( ) ) 1.10 ( ) ( ) (CEI ) N (CEI ) ( 1.9) (CEI ) 3VF ( ) ( 1.17) I 2 t ( ) I 2 t I 2 t 1.8 ( ) 1) CEI 23-3/4 a E B, C, D 2) 1) ( ) (CEI ) 3) 3VF 4) 1) CEI 23-3/4 a (EN 60898) 1/14

19 Coordination under the conditions of short circuit between miniature circuit breakers and another device of protection against the short circuits (miniature circuit breaker or fuse) Selectivity and back up The term coordination includes considerations both on the selectivity of tripping and on the protection of support (back-up). To ensure a determined type of coordination, it is necessary to take into account the single characteristic of both units connected in series and also their associated behavior. Other device of protection against the short circuits miniature circuit breaker Fig. 1.8 Coordination under conditions of short circuit with miniature circuit breaker. Selectivity of tripping among devices of protection against the overcurrents (selectivity of overcurrent) When the devices of protection of overcurrent are arranged in series and when the necessities of practice require this, their characteristics of functionality should be selected in such a way that, in case of fault, only the part of unit in which the fault is found would be separated from power supply, namely that the selectivity should be guaranteed (Art. 5361, CEI 64-8). Situations of practice that require obligatorily the selectivity are for example those that concern the power supply circuits for services of security (Art 563.4, CEI 64-8); the electric units at the public places of spectacle and entertainment where it is required the fixed receptacles are located in the places where the public can enter, should possess a single protection against the overcurrents, and in general the devices of protection and the subdivision of circuits should be such as to prevent the occurrence of panic (Section 752, new Standard CEI 64-8). Total selectivity The selectivity of overcurrent is called the total when there are two devices of protection of overcurrent in series, the device of protection at charge side (downstream) performs the protection without causing the tripping of the other device located upstream for any value of overcurrent that can be verified. Partial selectivity Vice versa, the selectivity of overcurrent is called the partial when the device of protection at charge side (downstream) performs the protection up to a given level of overcurrent, without causing the tripping of the other device upstream. Selectivity among miniature circuit breakers Classification In examining the selectivity of tripping between two miniature circuit breakers connected in series, it is possible to define four types of selectivity: 1) The amperometric selectivity or for steps of current, obtainable agenda on adjustment of releases of instantaneous overcurrent, if adjustable, or the changed type of tripping characteristics B, C, D, defined by the Standard CEI 23-3/4 a Edition. 2) The chronometric selectivity or for steps of time 1), obtainable agenda on the times of tripping of releases with delay independent from overcurrent. 3) The selectivity of zone, realizable through the use of microprocessors and utilized when it is desired to maintain also the rapidity of tripping. 4) The dynamic selectivity, obtainable only through the use of limitative circuit breakers at charge side and therefore realizable with the miniature Circuit Breakers. Dynamic selectivity with the miniature circuit breakers As we may observe from Fig. 1.10, the dynamic selectivity assumes high values without the necessity of delaying intentionally the tripping of the circuit breaker at power supply side (upstream). This brings about the advantage of the reduction of stresses at unit in case of fault and the saving of dimensions of some of its components. Therefore, through the use of the limitation of current or to be more precise through the use of the circuit breakers downstream, it is possible to guarantee the selectivity with the circuit breaker upstream also for high short circuit current. Miniature Circuit-Breakers Technical characteristics In this case, in fact, the limit value of the short circuit current for which the selectivity is guaranteed (Figure 1.9) is much more higher than the value of instantaneous tripping of the circuit breaker upstream that would correspond also to the limit value of selectivity in the event that the circuit breaker downstream would not be limitative. In the Part Technical data of miniature circuit breakers, the values of selectivity between the miniature circuit breakers downstream and 3VF upstream are reported in the tabular form. Selectivity between fuses and miniature circuit breakers If the device of protection at power supply side is a fuse (Fig. 1.17), the values of selectivity with the respective miniature circuit breakers at charge side can be obtained graphically, superposing the curve of I 2 t of miniature circuit breaker to that of the pre-arc of the fuse. The point of intersection of the above curves decides the limit value of selectivity of combination, since the selectivity of a circuit breaker in regard to the fuse upstream is guaranteed up to the value of current. Therefore, the value of I 2 t let through the circuit breaker is lower than the value of I 2 t of pre-arc of the fuse. Protection of support (back-up) In selecting the device of protection against the short circuits, one of the two conditions, to which the device should respond, is that its capability of tripping should not be lower than the presumed current of short circuit at its point of installation. Nevertheless, the use of a device of protection with low capability of tripping is admitted if another device having the necessary capability of tripping is installed upstream. In this case, the characteristics of the two devices should be coordinated in such a way that the let through energy would not exceed the energy that can be supported without damage to the device located downstream and to the conduits protected by these devices, namely that the protection of support (back-up) should be guaranteed (new Standard CEI 64-8 Art ). In the Part Technical Data of miniature circuit breakers, the values of back-up between the miniature circuit breakers and the circuit breakers 3VF are reported in the tabular form. 1 1) Not applicable to the automatic circuit breakers complying with the Standard CEI 23-3/4 a Edition (EN 60898) 1/15

20 Miniature Circuit-Breakers Technical characteristics Dynamic selectivity with the miniature circuit breakers 25 ka Limit of selectivity obtained by tests of laboratory 25 ka : Selectivity: dictated by the capability of limitation of the circuit breaker downstream 1.9 Fig /16

21 Selectivity among miniature circuit breakers Miniature Circuit-Breakers Technical characteristics 1 B Circuit breaker upstream B A Circuit breaker downstream A / Not limitative / Limitative / Amperometric/chronometric selectivity Amperometric selectivity 1.10 Fig / Not limitative / Limitative Low or relatively high values / Time/current characteristics Dynamic selectivity High values Test of laboratory Low value / Time/current characteristics Dynamic selectivity Not definable a priori, can reach also high values Test of laboratory Selectivity between fuses and miniature circuit breakers 1.11 Fig /17

22 Miniature Circuit-Breakers I 2 t Curve I 2 t 5SQ Ue 230V ~ (1P+N) C Miniature circuit breakers 5SQ Ue 230V ~ (1P+N) Tripping Characteristic: C 5SX Ue 230/400V ~ (1P) 230V~(1P+N) 400V~ (2P 1), 3P, 3P+N) cosϕ C Miniature circuit breakers 5SX Ue 230/400V ~ (1P) 230V~(1P+N) 400V~ (2P 1), 3P, 3P+N) cosϕ Tripping Characteristic: C 1) 230V~ 2P 40% 1) For the execution 2P at 230 V~, the values of passing specific energy related to the tripping of the eletromagnetic release are further reduced by 40%. 1/18

23 I 2 t 5SX Ue 230/400V ~ (1P) 400V~ (2P 1), 3P) cosϕ0.6 1 A Miniature circuit breakers 5SX Ue 230/400V ~ (1P) 400V~ (2P 1), 3P) cosϕ0.6 1 Tripping Characteristic: A 5SX Ue 230/400V ~ (1P) 230V ~ (1P+N) 400V ~ (2P 1), 3P, 3P+N) cosϕ C Miniature circuit breakers 5SX Ue 230/400V ~ (1P) 230V ~ (1P+N) 400V ~ (2P 1), 3P, 3P+N) cosϕ Tripping Characteristic: C Miniature Circuit-Breakers Curve I 2 t 1 1) 230V~ 2P 40% 1) For the execution 2P at 230 V~, the values of passing specific energy related to the tripping of the eletromagnetic release are further reduced by 40%. 1/19

24 Miniature Circuit-Breakers I 2 t Curve I 2 t 5SP U e 230/400V ~ (1P) 400V ~ (2P 1), 3P, 4P) cosϕ C Miniature circuit breakers 5SP U e 230/400V ~ (1P) 400V ~ (2P 1), 3P, 4P) cosϕ Tripping Characteristic: C 5SX5 - æ V æ(1p) - 440V æ(2p)τ = 4 ± 0.1ms C Miniature circuit breakers 5SX5 - æ V æ(1p) - 440V æ(2p)τ = 4 ± 0.1ms Tripping Characteristic: C 1) 230V~ 2P 40% 1) For the execution 2P at 230V~, the values of passing specific energy related to the tripping of the eletromagnetic release are further reduced by 40%. 1/20

25 5SQ U e 230/400V ~ cosϕ C Miniature circuit breakers 5SQ U e 230/400V ~ cosϕ Tripping Characteristic: C 5SX U e 230/400V ~ cosϕ C Miniature circuit breakers 5SX U e 230/400V ~ cosϕ Tripping Characteristic: C Miniature Circuit-Breakers Characteristics of limitation 1 [ka] Presumed current of short circuit [ka] [ka] Presumed current of short circuit [ka] ip - ip - Maximum value of peak current of interrupted short circuit 1/21

26 Miniature Circuit-Breakers 5SX U e 230/400V ~ cosϕ C Miniature circuit breakers 5SX U e 230/400V ~ cosϕ Tripping Characteristic: C 5SX5 - æ10000 U e 220/440Væ τ = 4 ± 0.1ms C Miniature circuit breakers 5SX5 - æ10000 U e 220/440Væ τ = 4 ± 0.1ms Tripping Characteristic: C Characteristics of limitation [ka] Presumed current of short circuit [ka] [ka] Presumed current of short circuit [ka] ip - ip - Maximum value of peak current of interrupted short circuit 1/22

27 Miniature Circuit-Breakers Current and energy limitation of miniature circuit breakers DIN VDE 0641 : 5SX, B6 ~ B32, i 2 dt/a 2 s 1 ( 2 t ) (cos ϕ = , ~250V) 2 ( 2 i 2 dt/ A 2 s 10 t 1/3 ) s 3 ( 2 t 1/10 ) A 2 s A 2 s According to DIN VDE 0641, specify the following current limitation grades for miniature circuit breakers: 1 Use for ordinary requirement ( 2 t permission equate to one Sin. - Half 2 a wave) s 2 Use for medium requirement ( 2 10 t permission equate to 1/3 Sin. - Half 8 wave) 6 3 Use for high requirement ( 2 t permission equate to 1/10 Sin. - Half wave) 4 d 2 B 32 B 16 B 25/32 B 16/20 B 10 B Transformer Fuse MCBs i A Ik i Iett lk/a 5SX ms 10 t a: 1.5mm 2 PVC- s: DIN VDE d: 5SQ 5SX 5SP 3 5SQ, 5SX, 5SP series MCBs current limitation and comparison with 3 different grades of energy limitation a: Permission load of 1.5mm 2 PVC-insulation cable s: Limited value according to DIN VDE 0641 part 11 d: Sin. - Half wave without limitation 5SQ 5SX 5SP 3 50% B- EN , DIN VDE : Energy limitation class use for B characteristic EN , DIN VDE 0641 Part 11 /Energy limitation class The energy limitation function of 5SQ, 5SX, 5SP series of miniature circuit breakers is 50% higher than that limitation class 3. It brings the benefits as following: Rated breaking capacity A I 2 dt max. /A 2 s Greatly limits the actual short-circuit current passing through load parts saving from mechanical and arc damage In 16A Improves electrical service life of circuit Improves selectivity to upstream MCCBs and Fuses for cost effective design and unnecessary clipping 16A In 32A No value limitation value /23

28 Miniature Circuit-Breakers Arc quench process of miniature circuit breakers 5SQ 5SX 5SP 5SQ, 5SX, 5SP series miniature circuit breaker contact system is made of high quality silver carbon or silver tin alloy materials. By elaborately design and arrangement, electrical arc which appears between moving and still contact is drawn into arc quenching room during tripping, the energy of the electrical arc 0.5ms is reduced dramatically, therefore the arc can be quenched rapidly due to very quick separation of the arc from the contacts to contacts. There is almost nothing of trace of inflating damage left on the contacts which means they have a very long service life. The above drawing is the process of arc quenching from contact clipping to the fully quenched arc photo by 0.5ms high speed camera. is the process of electrical arc quench 1 DATUM: 18 - MAR : 45 MNR: 575 TV: 0.15 I I t: IMX: 3.87 TS: a SQ 5SX 5SP b Oscilloscope graph of 5SQ, 5SX, 5SP MCB that taken when doing high breaking capacity test. UB [ V ] I [ A ] c UN [ V ] [ msec ] Test time a: (U N ) Supply voltage b: (I) Short-circuit current c: (U B ) Arc voltage 1/24

29 Fuse Miniature Circuit-Breakers Selectivity protection of miniature circuit breakers 1 MCB Selectivity When the fault happen, the protective devices only open the branch circuit where the fault happened, but don t open the main circuit, that is meaning selective protection. MCCB MCB Selectivity between MCB and fuse i 2 dt i 2 dt The cross point of MCB energy let through - i 2 dt curve and fuse melt - i 2 dt curve Limitation of selectivity 1/25

30 Miniature Circuit-Breakers NH conductor cross section. This results in a staggered cascade according to the rated current, DIN VDE which should, where possible, NH provide selectivity. Selectivity ka means, that in the event of a fault, only the protective device in the vicinity of the fault trips. Parallel current paths can NH Selectivity, miniature circuitbreakers/nh fuses NH 2 t- Generally, distribution networks are configured as radial networks. An overcurrent device must be continue to provide the necessary power. For MCBs with NH fuses connected upstream, the selectivity limit essentially depends on the current limits and tripping characteristics of the provided at each reduction of the MCB as well as the pre-arcing 2 t Technical description value of the NH fuse. Therefore MCBs with different characteristics and rated breaking capacities also have different selectivity limits. The subsequent tables provide information regarding which selectivity is provided between MCBs and upstream NH fuses according to DIN VDE 0636 Part 21. For values, specified in ka, it involves limit values, which were determined under unfavourable test conditions. In practice, better values can be obtained, depending on the type of fuse upstream. MCB NH Downstream MCB Upstream NH fuse n [A] 16A 20A 25A 35A 50A 63A 80A 100A 5SX1, 5SX A Characteristic A B Characteristic B C Characteristic C D Characteristic D IEC 898 5SX1, 5SX Rated short-circuit capacity 5SX1, 5SX2 according to IEC /26

31 Miniature Circuit-Breakers Technical description NH 5SX1/5SX2/5SX4/5SP4 DIN VDE (ka) Selectivity MCBs/NH fuses In the event of a short-circuit when using the MCBs 5SX1/5SX2/5SX4/5SP4 and fuses according to DIN VDE 0636 Part 21, selectivity is provided up to the indicated values in ka. MCB Downstream MCB Upstream fuse n [A] 16 A 20 A 25 A 35 A 50 A 63 A 80 A 100 A 125 A 5SX B Characteristic B C Characteristic C IEC 898 5SX Rated short-circuit capacity 5SX4 according to IEC MCB Downstream MCB Upstream fuse n [A] 100 A 125 A 160 A 200 A 224 A 250 A 5SP B Characteristic B C Characteristic C Characteristic D IEC 898 5SP Rated short-circuit capacity 5SP4 according to IEC /27

32 Miniature Circuit-Breakers Technical description NEOZED DIAZED 5SQ3/5SX2/5SX4 NEOZED DIAZED (ka) Selectivity MCBs/NEOZED, DIAZED fuses In the event of a short-circuit when using the MCBs 5SQ3/5SX2/5SX4 and NEOZED, DIAZED fuses, selectivity is provided up to the indicated values in ka. / Downstream / Upstream NEOZED DIAZED 5SQ3 5SX2 5SX4 MINIATURE CIRCUIT In (A) BREAKERS 5SQ3-5SX2-5SX4 / Characteristic PI ka C ka 1) / Values of selectivity in ka 1) 6/ > > > > > > ) 400V ~ (230V~ 1P+N 230/400V~ 1P) 230V ~, The values of selectivity cited are attributed to the voltages of 400V ~ for 1P+N and 230/400V ~ for 1P). For the bipolar circuit breakers employed at the voltages of 230V ~, the selectivity is guaranteed by the most elevated values. 1/28

33 Miniature Circuit-Breakers Technical description Î (ka) IEC V/400V AC, 50Hz Selectivity MCBs/MCCBs Distribution networks can also be configured without any fuses. In these cases, a circuit-breaker acts like an upstream protective device. In this case, the selectivity limit is dependent on the magnitude of the peak current Î of the miniature circuit breaker and the tripping current of the moulded case circuit-breaker. The following table specifies up to which short-circuit currents in ka, selectivity is provided between the MCBs and upstream MCCBs according to IEC at 230/400 V AC, 50Hz. 1 MCB MCCBs Downstream MCB Upstream MCCBs 3VU13 3VU16 n [A] >> [A] cn [ka] [ka] 1 ) Selectivity limits [ka] 1 ) 5SX1, 5SX2, 5SX A Characteristic A B / Characteristic B / / / / / / / /10 C / Characteristic C / / / / / / / / / / / / / / /10 D Characteristic D ) 240/415 V, 50Hz 10% >> = 1) In 240/415 V, 50Hz networks, the selectivity limits must be reduced by 10%. >> = Tripping current. 1/29

34 Miniature Circuit-Breakers Technical description IEC DIN VDE (ka) Selectivity MCBs/MCCBs Under short-circuit conditions, selectivity is provided between the MCBs and MCCBs in accordance with IEC and DIN VDE 0660 Part 101 up to the specified values in ka. MCB Downstream MCB MCCBs Upstream MCCBs 3VF1 n [A] >> [A] cn [ka] [ka] 1) Selectivity limits [ka] 1) 5SX1, 5SX2, 5SX A Characteristic A B / Characteristic B / / / / / / / / C / /10 6/10 Characteristic C / /10 6/ / /10 6/ / /10 6/ / / / / / / / / / / / / D Characteristic D ) 240/415V, 50Hz 10% >> = 1) In 240/415V, 50Hz networks, the selectivity limits must be reduced by 10%. >> = Tripping current. 1/30

35 Miniature Circuit-Breakers Technical description IEC DIN VDE (ka) Selectivity MCBs/MCCBs Under short-circuit conditions, selectivity is provided between the MCBs and MCCBs in accordance with IEC and DIN VDE 0660 Part 101 up to the specified values in ka. 1 MCB Downstream MCB MCCBs Upstream MCCBs 3VF3 3VF3 /adjustable /fixed setting n [A] >> [A] /70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 cn [ka] [ka] 1) Selectivity limits [ka] 1) 5SX1, 5SX2, 5SX A Characteristic A B / /10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 Characteristic B / /6.6 6/10 6/10 6/10 6/ / /6.2 6/6.5 6/ / /8.2 6/10 6/10 6/ / / /8.2 6/10 6/10 6/ / / /8.2 6/10 6/10 6/ / / / / / / / C /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 Characteristic C /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ / /9.5 6/10 6/10 6/10 6/ /8.2 6/8.2 6/8.2 6/8.6 6/ / /9.5 6/10 6/10 6/10 6/ /8.2 6/8.2 6/8.2 6/8.6 6/ / /9.5 6/10 6/10 6/10 6/ /8.2 6/8.2 6/8.2 6/8.6 6/ / /7.9 6/10 6/10 6/ / / /7.9 6/10 6/10 6/ / / /10 6/9.7 6/ / / /10 6/9.7 6/ / / /10 6/9.7 6/ / / / / / / / D Characteristic D SP C Characteristic C D Characteristic D ) 240/415V, 50Hz 10% n = >> = 1) In 240/415V, 50Hz networks, the selectivity limits must be reduced by 10%. The selectivity limits are valid for adjustable releases for the maximum value, n = rated current. >> = tripping current. 1/31

36 Miniature Circuit-Breakers Technical description IEC DIN VDE (ka) Selectivity MCBs/MCCBs/ACB Under short-circuit conditions, selectivity is provided between the MCBs, MCCBs and ACBs in accordance with IEC and DIN VDE 0660 Part 101 up to the specified values in ka. MCB Downstream MCB MCCBs Upstream MCCBs 3VF4 3VF5 3VF6 3VF7 3VF8 3WN1 3WN6 n [A] >> [A] /70 40/70 40/70 40/70 45/70 45/70 45/70 45/70 45/70 45/70 50/70 65/80 cn [ka] A / /75 [ka] 1) Selectivity limits [ka] 1) 5SX1, 5SX2, 5SX A Characteristic A B /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 Characteristic B /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/9.6 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/9.6 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ / /10 6/10 6/10 6/10 6/10 6/10 6/ / /10 6/10 6/10 6/10 6/10 6/10 6/10 C /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 Characteristic C /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/8 6/9.1 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ /10 6/8 6/9.1 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ / /6.5 6/6.5 6/6.5 6/6.5 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/ / /6.2 6/6.2 6/6.2 6/6.3 6/10 6/10 6/10 6/10 6/10 6/10 6/10 6/10 D Characteristic D SP C Characteristic C D Characteristic D ) 240/415V, 50Hz 10% n = 3VF8 100ms >> = 1) In 240/415V, 50Hz networks, the selectivity limits must be reduced by 10%. The selectivity limits are valid for adjustable releases for the maximum value, n = rated current. For 3VF8, the tripping delay time t d should be set to 100ms or higher. >> = tripping current. 1/32

37 Miniature Circuit-Breakers Technical description MCB MCB ka 230V MCB Selectivity MCBs/MCCBs In distribution networks without any fuses, MCBs provide selectivity between themselves within close limits. This is dependent on the peak current Î of the downstream MCB and the tripping current of the upstream MCB. The following table specifies up to which short-circuit current in ka, selectivity is provided between MCBs connected in series at 230 V AC. 1 MCB MCBs Downstream MCB Upstream MCBs 5SX4-7 characteristic C 5SP4-7 characteristic C 5SP4-8 characteristic D n [A] >> [A] cn [ka] [ka] Selectivity limits [ka] 5SX1, 5SX2, 5SX / B / Characteristic B / / / / / / / C / /10 6/10 Characteristic C / /10 6/ / /10 6/ / /10 6/ / / / / / / / / / / / / / /33

38 Miniature Circuit-Breakers Technical description NH NH (ka) DIN VDE NH Back-up protection, MCBs/NH fuses If the magnitude of the maximum short-circuit current, flowing at the MCB location, is unknown, or if the specified rated breaking capacity is exceeded, an additional protective device must be connected in series as back-up protection. This prevents excessive stressing of the MCB. Generally, a NH fuse is used. The following table specifies up to which short-circuit currents in ka, back-up protection is guaranteed when using NH fuses according to DIN VDE 0636 Part 21. MCB Downstream MCB Upstream fuse n [A] 50A 63A 80A 100A 125A 160A 5SX1, 5SX2, 5SX4 C kA /No back-up protection required up to 50kA B C B/C B/C B/C B/C B/C B/C B/C B/C C : : Test circuit data: Test cycle: Up = 250 V 0 (60 C) - t - 0 (60 ), t = 3 min cos ϕ = 0.27 to 0.49 ( 60 2 /2 trips at 60 electrical) EN DIN VDE (ka) Back-up protection, MCBs/MCCBs If MCBs are used in fuseless distribution boards, MCCBs should be provided as back-up protection in accordance with EN and DIN VDE 0660 Part 101. The following table shows short-circuit currents in ka up to which back-up protection is guaranteed using MCCBs. MCB MCCBs Downstream MCB Upstream MCCBs 3VU13 3VU16 n [A] >> [A] cn [ka] [ka] Back-up protection up to [ka] 5SX1, 5SX2, 5SX4 4 6/ A 6 6/ Characteristic A 8 6/ B 10 6/ Characteristic B 13 6/ C 16 6/ Characteristic C 20 6/ D 25 6/ Characteristic D 32 6/ / / /34

39 NEOZED DIAZED (ka) Back-up protection, MCBs/NEOZED, DIAZED fuses When a short-circuit develops, back-up protection is provided between the downstream MCB and the upstream NEOZED and DIAZED fuses up to the values specified in ka Miniature Circuit-Breakers Technical description 1 / Downstream / Upstream NEOZED DIAZED 5SX2 5SX4 5SQ3 MINIATURE CIRCUIT In (A) BREAKERS 5SX2-5SX4-5SQ3 / Characteristic PI 1) A, B, C, D ka / Values of backup in ka /400V ~ ) P I - ka P I - Rated breaking capability in ka of fuse block. 1/35

40 Miniature Circuit-Breakers Technical description (ka) Back-up protection, MCBs/MCCBs When a short-circuit develops, back-up protection is provided between the downstream MCB and the upstream MCCBs up to the values specified in ka. MCB MCCBs Downstream MCB Upstream MCCBs 3VF1 n [A] >> [A] cn [ka] [ka] Back-up protection up to [ka] 5SX1, 5SX2, 5SX4 4 6/ A 6 6/ Characteristic A 8 6/ B 10 6/ Characteristic B 13 6/ C 16 6/ Characteristic C 20 6/ D 25 6/ Characteristic D 32 6/ / / MCB MCCBs Downstream MCB Upstream MCCBs 3VF3 3VF3 / adjustable / fixed setting n [A] >> [A] /70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 40/70 cn [ka] [ka] Back-up protection up to [ka] 5SX1, 5SX2, 5SX / A 3 6/ Characteristic A 4 6/ B 6 6/ Characteristic B 8 6/ C 10 6/ Characteristic C 13 6/ D 16 6/ Characteristic D 20 6/ / / / / MCB MCCBs Downstream MCB Upstream MCCBs 3WN1/ 3VF4 3VF5 3VF6 3VF7 3VF8 3WS1 In [A] I>> [A] /70 40/70 40/70 40/70 45/70 45/70 45/70 45/70 45/70/ 50/70/ Icn [ka] / [ka] Back-up protection up to [ka] 5SX1, 5SX2, 5SX / A 3 6/ Characteristic A 4 6/ B 6 6/ Characteristic B 8 6/ C 10 6/ Characteristic C 13 6/ D 16 6/ Characteristic D 20 6/ / / / / /36

41 5SQ35 Series 5SQ :,, Application sectors: domestic, public, industrial Miniature Circuit-Breakers Product data sheet 4500A 6000A IEC 898. : 6 to 25A, AC 230V : B, C : 4500A 6000A IEC 898 ( 2 t): 3 ( ) 6000A(- 0kV) 4500A(-0kW) : IEC 898, EN 60898, VDE Circuit-breaker having a short-circuit capacity of 4500A or 6000A according to standard IEC 898. Current range: 6 to 25A AC 230 V~ Tripping characteristic: B, C Rated short-circuit capacity according to IEC 898: 4500A or 6000A Strong limitation of 2 t energy: limitation class 3 Neutral phase version, in a Module Width unit, with a short-circuit capacity of 6000A (0kV) and 4500A (0kW) Totally compliant to the standards: IEC 898-EN VDE 0641 Part 11 Marking Approvals and main certifications ( ) VDE 6000A (- 0kV) 4500A (- 0kW) B, C 6-25 A Neutral phase version incorporates in the same Module Width unit the protected pole and the neutral pole; the short-circuit capacity is 6000A for the -0kV versions and 4500A for the -0kW versions. n (A) 5SQ3 U e (V) 1P+N ~ B C ( ) Short-circuit capacity (max. values) n (A) IEC 898 IEC cs (ka) cu (ka) 1P+N (230 V~) (0kV) (0kW) SQ35 : 38 For more details on the technical data of 5SQ35 circuit-breakers, please consult the section: Technical data of the miniature circuit-breakers page Dimension data of the miniature circuit-breakers see page 39. 1/37

42 Miniature Circuit-Breakers 5SQ35 Series 5SQ35 C, B Tripping characteristics C, B 5SQ A/6000A IEC 898, EN AC 230V : 3 : DC 55V : IP 2X - IP XXB : 12 5SQ35 Series rated short-circuit capacity of 4500 A/6000A according to IEC 898, EN Ue AC 230V Energy limitation class: 3 DC usable: up to DC 55V protected terminals IP 2X - IP XXB packaging: 12 parts Selection and ordering data Schematic diagram Rated current Order No. and connecting C B terminals n (A) Characteristic C Characteristic B 1 + N 6 5SQ KW06 (1 ) 1) 10 5SQ KW10 1 pole + N 13 5SQ KW13 (1 MW) 1) 16 5SQ KW SQ KW20 4,500A 25 5SQ KW N 6 5SQ KV06 5SQ KV06 (1 ) 1) 10 5SQ KV10 5SQ KV10 1 pole + N 13 5SQ KV13 5SQ KV13 (1 MW) 1) 16 5SQ KV16 5SQ KV16 6,000A 20 5SQ KV20 5SQ35 : 1P + N, 1 (MW) 5SQ35 circuit-breaker 1P + N: 1 MW 1) 1 (MW) = = 18mm 1 MW = one Module Width unit = 18mm 1/38

43 5SX Series 5SX1 3 : Application sectors: domestic, public, industrial Miniature Circuit-Breakers Product data sheet : 6 32A, AC 230/400 V : C IEC 898 : 6000A ( 2 t): 3 : DC 120V 2P; 60V 1P : IEC 898, GB Circuit-breaker featuring excellent performances in the event of short-circuiting: high breaking capacity and important 2 t energy limitation. Complete current range: 6 to 32A AC 230/400V Characteristic: C Rated short-circuit capacity according to IEC 898: 6000A Strong energy limitation of 2 t: limitation class 3 DC usable up to DC 120V 2P, 60V 1P Compliant to the standards: IEC 898, GB SX1, Approvals and main certifications VDE 6000A GB 5SX1 The circuit-breakers of the 5SX1 series, which are distinguished by optimum functional characteristics and benefit from a comprehensive series of approvals, are certainly among the most high-performance devices in their class, that is, circuit-breakers with a short-circuit capacity of 6000 A. In the public and industrial sectors, the circuit-breakers 5SX1 allow obtaining maximum protection and guaranteeing high selectivity. C 6-32 A 6-32 A ( ) Short-circuit capacity (max. values) IEC 898 IEC n (A) cs (ka) cu (ka) 1P (230 V~), 2P, 3P (400 V~) SX1 38 For more details on the technical data of 5SX1 circuit-breakers, please consult the section: Technical data of the miniature circuit-breakers page Dimension data of the miniature circuit-breakers see page 39. 1/39

44 Miniature Circuit-Breakers 5SX Series 5SX1 3 C Tripping characteristics C 5SX1 6000A IEC 898 AC 230/400V 3 : DC 120V (2P); DC 60V (1P) : IP 2X-IP XX B ( ) 12 (1P) 6 (2P) 4 (3P) 5SX1 Series rated short-circuit capacity 6000A according to IEC 898, Ue AC 230/400V Energy limitation class 3 DC usable: up to DC 120V (2P) up to DC 60V (1P) protected terminals IP 2X - IP XXB packaging (number of parts per unit) 12 (1P) 6 (2P) 4 (3P) Schematic diagram Rated Order No. and connecting current C terminals n (A) Characteristic C 1 1 pole 2 2 pole 3 3 pole 6 5SX CC 10 5SX CC 16 5SX CC 20 5SX CC 25 5SX CC 32 5SX CC 6 5SX CC 10 5SX CC 16 5SX CC 20 5SX CC 25 5SX CC 32 5SX CC 6 5SX CC 10 5SX CC 16 5SX CC 20 5SX CC 25 5SX CC 32 5SX CC Selection and ordering data 1) 1 (MW)= =18mm 1 MW = one Module Width unit = 18mm 1/40

45 5SX Series 5SX2 3 : Application sectors: public, industrial 2) 3) Miniature Circuit-Breakers 10kA, IEC : A, AC 230/400V : A, B, C, D IEC 898 : 6000A ( 2 t): 3 : DC 120V 2P; 60V 1P, 1P + N : IEC EN , VDE 0641, 11, VDE 0660 T101, UL 1077, GB ) Circuit-breaker featuring excellent performances in the event of short-circuiting: high short-circuit capacity and important 2 t limitation. Complete current range: 0.3 to 63A AC 230/400V Complete characteristic range: A, B, C, D Rated short-circuit capacity according to IEC 898: 6000A Strong energy limitation of 2 t: limitation class 3 DC usable up to DC 120V 2P, 60V 1P, 1P + N Wide range of accessories and auxiliary components Product data sheet Compliant to the standards: IEC EN , VDE 0641 Part 11, VDE 0660 T101, UL 1077, GB ) 1 1) C B D 5SX2, Approvals and main 1) 2) certifications 6000A IMQ A 5SX2 VDE A 6-50A A CSA A 6-50A A 5SX B C D UL A 6-50A A UL CSA AC120/240V AC277/480V GERMANISCHER LLOYD A 6-32A 5SX2 1P 1P+N 2P 3P 3P+N The circuit-breakers of the 5SX2 series, which are distinguished by optimum functional characteristics and benefit from a comprehensive series of approvals, are certainly among the most high-performance U e (V) ~ devices in their class, that is, circuit-breakers with a short-circuit capacity n (A) of 6000 A. In the public and industrial sectors, the circuit-breakers 5SX2 allow obtaining maximum protection and guaranteeing high selectivity The 5SX2 circuit-breakers in the one-, two-, and three-pole versions, A A A 10-50A characteristics B, C, and D, have also obtained UL and CSA certifications 2) for systems operating under a rated voltage of AC 120/ 240V and AC 277/480V; therefore, these circuit-breakers can be integrated in finished products for export to countries where approvals are expressly required. ( ) Short-circuit capacity (max. values) IEC 898 IEC SX2 n (A) cs (ka) cu (ka) 38 1P (230 V~), 2P, 3P, 3P+N (400V~) For more details on the technical data of 5SX2 circuit-breakers, please consult the section: Technical data of the miniature circuit-breakers page 38. 1P+N, 2P, 3P, 3P+N (230V~) Dimension data of the miniature circuit-breakers see page A B C D 1) 5SX2 A VDE Characteristic A also according to the VDE standard. 2) CC Only the versions without CC at the end of the Order No. 3) 5SX2 C, D /1~32A Suit for 5SX2 C, D characteristic / 1~32A. 1/41

46 Miniature Circuit-Breakers Selection and ordering data 5SX2 Series 5SX2 10kA, IEC C, A, B, D Tripping characteristics C, A, B, D 5SX2 6000A IEC 898, AC 230/400V 3 : DC 120V (2P); DC 60V (1P, 1P+N) : IP 2X-IP XX B - 2 (AC) - 1 (FC) 1 + N (2 ) pole + N (AC ) 1 (2 MW) (FC ) (ST) ( ) 2 12 (1P) (2 ) 6 (1P+N, 2P) 2 pole 4 (3P) (2 MW) 3 (3P+N,4P) 5SX2 Series rated short-circuit capacity 6000 A according to IEC 898, Ue AC 230/400 V Energy limitation class 3 DC usable: up to DC 120V (2P) up to DC 60V (1P, 1P+N) protected terminals IP 2X - IP XXB auxiliary contact and fault signal contact mountable on the righthand side: - 2 auxiliary contact (AC) max. or - 1 fault signal contact (FC) or - max. 1 AC (internal) + 1 FC (external) shunt trip mountable on the left-hand side packaging (number of parts per unit) 12 (1P) 6 (1P+N, 2P) 4 (3P) 3 (3P+N,4P) 1) 1 (MW)= =18mm 1 MW = one Module Width unit = 18mm 2) : 4500A Rated breaking capacity: 4500A Schematic diagram Rated Order No. and connecting current C A B D terminals n (A) Characteristic C Characteristic A Characteristic B Characteristic D 1 (1 ) 1) 1 pole (1 MW) 1) 3 (3 ) 3 pole (3 MW) 3 + N (4 ) 3 pole + N (4 MW) 4 (4 ) 4 pole (4 MW) /Auxiliary contacts (1/2 )/(1/2 MW) Fault signal contacts (1/2 )/(1/2 MW) /Shunt trip (1 )/(1 MW) Uc= AC 110~415V 0.3 5SX SX SX SX CC 5SX SX CC 1.6 5SX CC 5SX SX CC 2 5SX CC 5SX SX CC 3 5SX CC 5SX SX CC 4 5SX CC 5SX SX CC 6 5SX CC 5SX SX SX CC 8 5SX CC 5SX CC 10 5SX CC 5SX SX SX CC 13 5SX CC 5SX SX CC 16 5SX CC 5SX SX SX CC 20 5SX CC 5SX SX SX CC 25 5SX CC 5SX SX SX CC 32 5SX CC 5SX SX SX CC 40 5SX CC 5SX SX SX CC 2) 50 5SX CC 5SX SX CC 2) 63 5SX CC 6 5SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX CC 5SX SX SX SX CC 5SX SX CC 1.6 5SX CC 5SX SX CC 2 5SX CC 5SX SX CC 3 5SX CC 5SX SX CC 4 5SX CC 5SX SX CC 6 5SX CC 5SX SX SX CC 8 5SX CC 5SX CC 10 5SX CC 5SX SX SX CC 13 5SX CC 5SX SX CC 16 5SX CC 5SX SX SX CC 20 5SX CC 5SX SX SX CC 25 5SX CC 5SX SX SX CC 32 5SX CC 5SX SX SX CC 40 5SX CC 5SX SX SX CC 2) 50 5SX CC 5SX SX CC 2) 63 5SX CC 0.5 5SX SX SX CC 5SX SX CC 1.6 5SX CC 5SX SX CC 2 5SX CC 5SX SX CC 3 5SX CC 5SX SX CC 4 5SX CC 5SX SX CC 6 5SX CC 5SX SX SX CC 8 5SX CC 5SX CC 10 5SX CC 5SX SX SX CC 13 5SX CC 5SX SX CC 16 5SX CC 5SX SX SX CC 20 5SX CC 5SX SX SX CC 25 5SX CC 5SX SX SX CC 32 5SX CC 5SX SX SX CC 40 5SX CC 5SX SX SX CC 2) 50 5SX CC 5SX SX CC 2) 63 5SX CC 10 5SX CC 16 5SX CC 20 5SX CC 25 5SX CC 32 5SX CC 40 5SX CC 50 5SX CC 6 5SX SX SX SX SX SX SX SX NO+1NC 5SX NO 5SX NC 5SX NO+1NC 5SX NO 5SX NC 5SX9 202 NO For fault signal contacts, it will change station when MCB be closed at first time. For example, the NO contact will be closed at this time. 5SX /42

47 5SX Series 5SX4 3 : Application sectors: public, industrial 25 ka IEC Miniature Circuit-Breakers Product data sheet 5SX2 : A, AC 230/400V : B, C IEC 898 : A ( 2 t) 3 : DC 120V 2P, 60V 1P, 1P + N : IEC EN , VDE Circuit-breaker assuring the same performances as those of the 5SX2 circuit-breaker, but offering still higher breaking capacity. Complete current range: 0.5 to 50A AC 230/400V~ Characteristics: B, C Rated short-circuit capacity according to IEC 898: A Strong energy limitation of 2 t: limitation class 3 DC usable up to DC 120V 2P, 60V 1P, 1P + N Wide range of accessories and auxiliary components Compliant to the standards: IEC EN 60898, VDE 0641 T 11 Marking C B Approvals and main 5SX4 certifications IMQ A VDE A 6-50A GERMANISCHER LLOYD A 6-32A The 5SX4 circuit-breakers can be used in the public and industry sectors when it is necessary to obtain maximum protection and guarantee high selectivity. Thanks to their high short-circuit capacity, they effectively protect electrical installations with a high risk of encountering shortcircuit currents. 5SX4 1P 1P+N 2P 3P 3P+N U e (V) ~ n (A) B C A 10-50A ( ) Short-circuit capacity (max. values) IEC 898 IEC n (A) cs (ka) cu (ka) 1P (230 V~), 2P, 3P, 3P+N (400 V~) P+N, 2P, 3P, 3P+N (230 V~) SX4 38 For more details on the technical data of 5SX4 circuit-breakers, please consult the section: Technical data of the miniature circuit-breakers page Dimension data of the miniature circuit-breakers see page 39. 1/43

48 Miniature Circuit-Breakers 5SX4 Series 5SX ka EN C, B Tripping characteristics C, B 5SX A IEC 898, AC 230/400V 3 : DC 120V (2P); DC 60V (1P, 1P+N) : IP 2X-IP XX B (AC) (FC) - 2 (AC) - 1 (FC) - 1 (AC ) 1 (FC ) (ST) ( ) 12 (1P) 6 (1P+N, 2P) 4 (3P) 3 (3P+N,4P) 5SX4 Series rated short-circuit capacity 10000A according to IEC 898, Ue AC 230/400V Energy limitation class 3 DC usable: up to DC 120V (2P) up to DC 60V (1P, 1P+N) protected terminals IP 2X - IP XXB auxiliary contact (AC) and fault signal contact (FC) mountable on the right-hand side: - 2 auxiliary contact (AC) max. or - 1 fault signal contact (FC) or - max. 1 AC (internal) + 1 FC (external) shunt trip mountable on the left-hand side packaging (number of parts per unit) 12 (1P) 6 (1P+N, 2P) 4 (3P) 3 (3P+N,4P) 1) 1 (MW)= =18mm 1 MW = one Module Width unit = 18mm Selection and ordering data Schematic diagram Rated Order No. and connecting current C B terminals n (A) Characteristic C Characteristic B 1 (1 ) 1) 1 pole (1 MW) 1) 1 + N (2 ) 1 pole + N (2 MW) 2 (2 ) 2 pole (2 MW) 3 (3 ) 3 pole (3 MW) 3 + N (4 ) 3 pole + N (4 MW) /Shunt trip (1 )/(1 MW) U e =AC V 0.5 5SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX Auxiliary contacts (1/2 )/(1/2 MW) 1NO+1NC 2NO 2NC 5SX SX SX NO+1NC 5SX9 200 Fault signal contacts (1/2 )/(1/2 MW) 2NO 2NC 5SX SX9 202 NO For fault signal contacts, it will change station when MCB be closed at first time. For example, the NO contact will be closed at this time. 5SX /44

49 Miniature Circuit-Breakers Product data sheet 5SP kA IEC Series 5SP4 125A IEC kA : Application sectors: public, industrial : 40A, 50A, 63A, 80A, 100A, 125A AC 230/400V : B, C, D IEC 898, 10000A (IEC 947-2, 15kA) : DC 120V 2P; 60V 1P : H W D= mm (1 ) IP 2X-IP XX B 50mm 2 EN mm 3. 5mm : IEC 898, EN 60898, EN /10.92, VDE /08.92 : Miniature Circuit-breaker up to 125A characterized by a breaking capacity of 15kA according to IEC 947-2, accepting high loads; usable as general circuit-breakers, in electrical panels. Rated currents: 40A, 50A, 63A, 80A, 100A, 125A AC 230/400V Tripping characteristics: B, C, D Rated short-circuit capacity according to IEC 898: 10000A, 15 ka (IEC 947-2) DC usable up to DC 120V 2P, 60V 1P Modular dimensions H W D : mm (1 pole) Terminals IP 2X - IP XXB for conductors up to 50mm 2 ; combined slotted and pozidrive head screws Snap-mounted on symmetric sectioned rails of 35 mm EN or by screws (dia. 3.5mm) Position of circuit-breaker's main contacts highlighted by a window, green if contacts open, red if contacts closed Label support Wide range of accessories and auxiliary components Compliant to the standards: IEC 898, EN 60898, EN /10.92 VDE 0641 T11/08.92 Marking 5SP4 : : 5SP4 ( : 125A, 4 ) (MCCB) : IEC898 : 5SP4 The 5SP4 circuit-breakers, which are perfectly adapted for utilization in public or industrial environments, offer major advantages such as: Reduced size: for comparable performances, an 5SP4, 125 A, 4-pole circuit-breaker is significantly smaller than a conventional molded case circuit-breaker (MCCB); Usability by non-specialists: the circuit-breaker, totally compliant to the standard IEC 898, can be manipulated by inexperienced personnel; Reduced cost: for comparable performances, the 5SP4 circuit-breaker is significantly cheaper than a molded case circuit-breaker. C Approvals and main certifications VDE A 1P, 2P, 3P, 4P 5SP4 1P 2P 3P 4P U e (V) ~ n (A) B C D ( ) Short-circuit capacity (max. values) 5SP4 : IEC 898 IEC n (A) cs (ka) cu (ka) 38 For more details on the technical data of 5SP4 circuit-breakers, please consult the section: Technical data of the Miniature Circuit-breakers page Dimension data of the miniature circuit-breakers see page P (230 V~), 2P, 3P, 4P (400 V~) 10 2P, 3P, 4P (230 V~) /45

50 Miniature Circuit-Breakers Selection and ordering data 5SP Series 5SP4 15kA EN C, B, D Tripping characteristics C, B, D 5SP A IEC 898, AC 230/400V : DC 120V (2P); DC 60V (1P) : IP 2X-IP XX B (AC) (FC) (ST) (UR) ( ) 6 (1P) 3 (2P) 2 (3P) 1 (4P) 1) 1 (MW) = = 18mm 1 MW = one Module Width unit = 18mm Schematic diagram Rated Order No. and connecting current C B D terminals n (A) Characteristic C Characteristic B Characteristic D 1 (1.5 ) 1) 1 pole (1.5 MW) 1) SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP (3 ) 2 pole (3 MW) 3 (4.5 ) 3 pole (4.5 MW) 40 5SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP4 Series rated short-circuit capacity 10000A according to IEC 898, Ue: AC 230/400V 4 (6 ) 4 pole (6 MW) DC usable: up to DC 120V (2P) up to DC 60V (1P) /Auxiliary contact (AC) 1NO+1NC 5ST3 010 protected terminals IP 2X - (1/2 ) 2NO 5ST3 011 IP XXB (1/2 MW) 2NC 5ST3 012 auxiliary contact (AC) fault signal contact (FC) shunt trip (ST) undervoltage release (UR) Fault signal contact (FC) (1/2 ) 1NO+1NC 2NO 2NC 5ST ST ST3 022 packaging (number of parts per (1/2 MW) unit) 6 (1P) 3 ( 2P) NO For fault signal contacts, it will change station when MCB be closed at first time. For example, the NO contact will be closed at this time. 2 (3P) 1 (4P) /Shunt trip (1 ) (1 MW) 5SM2 (~ V, 110V) 5ST3 030 ( ) 5ST3 031 Additional RCCB modules 5SM2: see RCDs product catalogue Undervoltage release (1 )/(1 MW) ( ~230V) ( 110V) ( 24V) ( ~230V) ( 110V) ( 24V) 5ST ST ST ST ST ST /46

51 5SX5 æ T Series 5SX5 3 : Application sectors: industrial Miniature Circuit-Breakers Product data sheet DC 440V 2P DC 220V 1P : 0.5 to 50A : B, C : 10000A1) 5SX2/4 1P = 1 (18mm) 2P = 2 (36mm) : AC 230/400V : 4500A : 3 : IEC 898, EN 60898, VDE : 1 Circuit-breaker specially designed for DC utilization under voltages of up to DC 440V 2P and DC 220V 1P. Complete current range: 0.5 to 50A Tripping characteristics: B, C Rated DC breaking capacity: 10000A 1) (DIN VDE 0641 T12) Sizes identical to those of the 5SX2/4 series 1P = 1 MW (18mm) 2P = 2 MWs (36mm) AC usable: AC 230/400V; rated short-circuit capacity: 4500A Energy limitation class : 3 Wide range of accessories and auxiliary releases Compliant to the standards: IEC EN 60898, VDE 0641 T12 DC 120V (2 ) Marking DC 60V (1 ) 5SX5 5SX5 1P 2P DC æ 440V (2 ) DC æ 220V (1 ) U e (V) ~ n (A) SX B C The 5SX5 circuit-breakers differ from AC circuit-breakers usable in DC applications up to DC æ 120V (two-pole version) or DC æ 60V (one-pole version) in that they have been expressly designed for DC utilization under a voltage range of up to DC æ 440V (2P) or DC æ 220V (1P). These rated voltage values have been obtained by means of a special manufacturing method which consists of equipping the arc-suppressing chamber with a nearby permanent magnet. In DC this device creates a high magnetic force which allows rapidly generating the arc inside the arc-suppressing chamber and then suppressing it as quickly as possible. When the 5SX5 circuit-breakers are used in DC, the polarities indicated at the terminals should be respected because the permanent magnet is present. ( ) Short-circuit capacity (max. values) ka 1) n (A) 1P 2P (220 ) 10 (440 ) (110 ) 10 (220 ) 5SX5 : 38 For more details on the technical data of 5SX5 circuit-breakers, please consult the section: Technical data of the Miniature Circuit-breakers page Dimension data of the miniature circuit-breakers see page 39. 1) = 4ms Time constant t = 4ms 1/47

52 Miniature Circuit-Breakers Selection and ordering data 5SX5 æ T Series 5SX5 3 C, B Tripping characteristics C, B 5SX5 DC 440V (2P); DC 220V (1P); 10000A : IP 2X-IP XX B 12 (1P) 6 (2P) 5SX5 Series Ue DC 440V (2P); DC 220V (1P); rated short-circuit capacity in DC 10000A protected terminals IP 2X - IP XXB auxiliary contact blocks and fault signal contacts blocks mountable on the right-hand side: - 2 auxiliary contact blocks max. (AC) or - 1 fault signal contact block (FC) or - max. 1 AC (internal) + 1 FC (external) shunt trip mountable on the left-hand side packaging (number of parts per unit) 12 (1P) 6 ( 2P) Schematic diagram Rated Order No. and connecting current C B terminals n (A) Characteristic C Characteristic B 1 (1 ) 1) 1 pole (1 MW) 1) - 2 (AC) - 1 (FC) - 1 (AC ) 1 (FC ) 2 (ST) (2 ) ( ) 2 pole (2 MW) Auxiliary contacts (1/2 )(1/2 MW) Fault signal contacts (1/2 )/(1/2 MW) Shunt trip (1 )/(1 MW) 0.5 5SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX SX NO+1NC 5SX NO 5SX NC 5SX NO+1NC 5SX NO 5SX NC 5SX SX9 300 NO For fault signal contacts, it will change station when MCB be closed at first time. For example, the NO contact will be closed at this time. 1) 1 (MW)= =18mm 1 MW = one Module Width unit = 18mm 1/48

53 /Copper busbars Miniature Circuit-Breakers Auxiliary releases Versions Utilization Order No. Packaging (no. of parts) 210mm ( ) 12 (1 =18mm) Length 210mm (with end caps) for 12 Module Width units 1 Umax = AC 450V >3kV 25A Umax = AC 450V resistance to overvoltages>3kv resistance to short-circuits 25kA /one phase one phase + N /three phases + /three phases + N 1000mm ( ) 16mm 2 16mm 2 16mm 2 16mm 2 for miniature circuit-breakers: 56 (1 =18mm) 5ST ST ST ST /Bar characteristics 1000mm (without end caps) for 56 Module Width units (1 MW = 18mm) /one phase 16mm 2 5ST section one phase + N 16mm 2 for miniature circuit-breakers: 5ST lateral transverse /three phases 16mm 2 5ST (mm 2 ) feed feed + /three phases + N 16mm 2 5ST A 120A 1000mm ( ) mm (without end caps) for 56 Module Width units /one phase 16mm ST /one phase + N 16mm 2 (1 =27mm) 5ST /three phases 16mm 2 with auxiliary contacts 5ST Modular Width units (1 MW = 27mm) Busbar end caps 5ST2 ( + ) IP 2X 5ST ST2 (one phase, one phase + N) 5ST2 ( + ) to assure a protection IP 2X, 5ST ST2 (three phase, three phase + N) the busbars are closed laterally with covers 5ST2 + 5ST Additional terminals to feed one phase, one phase + N busbars 5ST2 + 35mm 2 5ST three phase, three phase + N for bars placed on upper terminals of the circuit-breakers or for cables up to 35mm 2 5SX1, 5SX2, 5SX4, 5SX5 Handle locking device circuitbreakers 5SX1, 5SX2, 5SX4, 5SX5 /red /transparent /to prevent undesired: /switching on 5ST /disconnector 5ST Adhesive labels /white 5ST /Spacer 1/2 ( ) ( ) 5ST /2 MW unit(s) to separate the devices (dummy pole) 1/49

54 Miniature Circuit-Breakers Auxiliary releases 5SX2, 5SX4, 5SX5 5SP4 (AC) (FC) (ST) (UR; 5SP4) (AC) ( ) : IP2X 2.5mm 2 (FC) (ST) (UR) 35% 70% ( EN ) IEC mA 5SX9300 5SP4 Utilization characteristics of the auxiliary contacts and the fault signal contacts ( ) U The Miniature Circuit-breakers of the series 5SX2, 5SX4, 5SX5 and 5SP4 Current type Utilization category e (V)/ e (A) can be equipped with the auxiliary releases indicated below, which 230/6 400/3 meet most of the requirements concerning electrical installations and AC AC /6 110/6 50/60Hz 240/4 415/3 can be mounted directly by the installer: auxiliary contacts (AC) fault signal contacts (FC) DC DC /3 60/3 110/3 220/1 shunt trip (ST) undervoltage release (UR; 5SP4) U e - /rated operating voltage Auxiliary contacts (AC) e - /rated operating current Each block consists of two electrically independent contacts (separated electrical circuits): one of these contacts is normally open and the other normally closed. The mechanically stable position of the contacts does - NEOZED/DIAZED 6A - gl/gg not change unless the circuit-breaker is manually actuated or is tripped - 6A due to an overload or a short-circuit. The terminals are characterized by a Auxiliary contact and fault signal protection devices degree of protection IP 2X; they allow connecting conductors with a max. cross-section of 2.5mm 2 and are delivered with combined slotted - fuses NEOZED/DIAZED 6A max. - gl/gg and pozidrive head srews. - Miniature Circuit-breakers 6A max. Fault signal contacts (FC) The fault signal contact block has a structure and dimensions identical to those of the auxiliary contact block. The fault signal contact block remotely indicates the tripping of the device due to an overload or a L1 N short-circuit. The block's contact remain in position when the circuitbreaker's handle is manually actuated. Shunt trip (ST) The shunt trip coil allows the circuit-breaker to be remotely tripped. The coil and circuit-breaker are coupled together not only by using the control handle, but also with the internal trigger. Undervoltage release (UR) The undervoltage coil causes the circuit-breaker to trip during a voltage 5 break or a progressive drop in value of the rated voltage rating between S 35% and 70% (art IEC 947-1). X Under the conditions described above, the undervoltage release 9 3 prevents the circuit-breaker from closing. 0 Emergency Stop control 0 The Shunt trip and the undervoltage release allow either to actuate an emergency stop as specified in standard IEC 64-8 art For the shunt trip, it is sufficient to connect an indicator light in parallel with the emergency stop pushbutton which permanently indicates the control circuit state. It is possible to connect the indicator lights to the shunt trip 5SX9300 if their total consumption does not exceed 100mA. Door coupling rotary operating mechanism Emergency stop control with Shunt trip The Miniature Circuit-breakers of the 5SP4 series can be equipped with a door coupling rotary operating mechanism. The mechanism prevents the switchboard from opening when the circuit-breaker is closed and prevents the circuit-breaker from closing (this operation requires a special tool) when the switchboard door is open. 1/50

55 Miniature Circuit-Breakers Auxiliary releases 5SX2, 5SX4, 5SX5 Maximum number of configurations allowed between the 5SX2, 5SX4, 5SX5 Miniature Circuit-breakers and their auxiliary releases. 1 (5SX9300) Shunt trip Circuit-breaker Auxiliary contacts ( 5SX9100 5SX9101 5SX9102) Fault signal ( 5SX9200 5SX9201 contacts 5SX9202) Shunt trip Circuit-breaker Auxiliary contacts Auxiliary contacts Shunt trip Circuit-breaker Fault signal contacts 5SP4 Maximum number of configurations allowed between the 5SP4 Miniature Circuit-breakers and their auxiliary releases. Circuit-breaker Shunt trip ( 5ST3030 5ST3031) (5ST3040 Undervoltage 5ST3041 release 5ST3040 5ST3041 5ST3042) Auxiliary contacts ( 5ST3010 5ST3011 5ST3012) Fault signal ( 5ST3020 5ST3021 contacts 5ST3022) Circuit-breaker Shunt trip or Undervoltage release Auxiliary contacts Auxiliary contacts Circuit-breaker Shunt trip or Undervoltage release Fault signal contacts Fault signal contacts 1/51

56 Miniature Circuit-Breakers General technical data 5SQ35 5SX1 5SX2 5SX4 5SP4 5SX5 Series æ T /Rated currents A A A A A A ( ) 230V~ 1P Rated AC voltage U e 230 V~ 1P+N DC version 400V~ 2P, 3P, 3P+N, 4P DC 220V 1P 50/60Hz DC 440V2P cn IEC A 6 000A 6 000A A A 4 500A AC Rated short-circuit capacity in short-circuit cn 6 000A A DC according to IEC 898 /Energy limitation class 3 /Tripping characteristics B, C C A, B, C, D B, C B, C, D B, C 250/440V~ Maximum AC operating voltage 24V Minimum operating voltage AC/DC 24V 1P, 1P+N DC 60V 1P DC 220V 2P DC 120V 2P DC 440V DC operating voltage up to DC 60V 1P, 1P+N up to DC 220V up to DC 120V 2P up to DC 440V 1) 30ºC Calibration ambient temperature of the thermal trip trigger 1) -25ºC +45ºC ( 55ºC) 95% Operating temperature range -25ºC to +45ºC (+55ºC if not permanent), maximum relative humidity 95% /Resistance to climate IEC according to IEC , 6 cycles /Storage temperature range -40ºC to +75ºC/ -40ºC to +75ºC /Operating position /as desired /Supply connection top or bottom respect polarities IP 2X -IPXXB, IP 2X 5SX2 Terminals 0.75mm 2 25mm 2 50mm 2 like 5SX2 5SX2, 4, 5 5SQ35 16mm 2 protected IP 2X protected IP 2X -IPXXB, for conductors for conductors /Enclosure of 0.75mm 2 to 25mm 2 up to 50mm 2 (16mm 2 for upper terminal, series) DIN 7708 in insulating material according to DIN 7708, toggle handle sealable in ON and OFF positions 6g (g = 9.81m/s 2 ) 60m/s Hz IEC Resistance to vibration 6 g in each direction (g = 9.81m/s 2 ) 60m/s 2 at Hz to IEC /Service life /Flammability / operations at nominal load DIN VDE II b /category II b to DIN VDE 0304 Part 3,, (5SP4) Auxiliary components auxiliary contacts, fault signal contacts, shunt trip, undervoltage release (5SP4) 1 ) ( ) 1 ) For ambient temperatures greater/less than the calibration (reference) temperature, the current values indicated on the plate decrease/increase 10ºC 5% approximately 5% for each variation of 10ºC with respect to the calibration 2 2 temperature. In a switchboard when two or several series of circuit-breakers are juxtapositioned and simultaneously used under full load, the load on these 2 ) 5SQ35 5SX1 circuit-breakers may have to be reduced; please consult the manufacturer for information about such circumstances. 2 ) No accessory function for 5SQ35, 5SX1. 1/52

57 Miniature Circuit-Breakers DC application 60V 120V N- 2 5SX5 5SX5 All N -type MCBs can be used for DC supplies up to 60V 1 pole and 120V 2 pole. For higher voltages model 5SX5 is required. The differences of the 5SX5 to the standard program are in the arc-chamber area that has additional permanent magnets to support the positive quenching of the arc. For this reason the polarity marked on the MCB terminals must be adhered to when connecting the cables. 1 5SX5, 1P DC 220V 5SX5, 1P to max. DC 220 V battery voltage (-) 1 + L+ L V 0V 5SX5, 2P DC 440V 5SX5, 2P to max. DC 440V battery voltage (-) 4 (+) (-) 4 (+) (-) 4 (+) L+ L V - 220V L+ L V 0V L+ L- M + 220V - 220V 0V 1/53

58 Miniature Circuit-Breakers Dimension drawings 5SQ35 5SQ35 Miniature Circuit-Breakers 5SX1 5SX1 Miniature Circuit-Breakers 5SX2, 5SX4 5SX5 5SX2, 5SX4, and 5SX5 Miniature Circuit-Breakers (mm)/dimensions in mm 5SX2, 5SX4 5SX5 Accessories for 5SX2, 5SX4, and 5SX5 5SX9 10., 5SX SX SP4 5SP4 Miniature Circuit-Breakers (mm)/dimensions in mm 5SP4 Accessories for 5SP4 5ST3... 5ST3... 1/54

59 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) 2/0

60 (FI) (FI-) Why residual current-operated circuit-breakers functioning independent of the supply? Reinhard Solleder By Reinhard Solleder (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) requirements regarding reliability (e.g. behaviour in humid climate conditions) - Improvements concerning the application at ambient temperatures down to -25 C It is therefore important not only to maintain the excellent reputation of voltage independent r.c.b. s, but to improve it further. In this respect we are faced with the question of whether it is now or whether it will be in the foreseeable future - in the age of microelectronics - appropriate or whether it can be permitted at all from the safety point of view to integrate micro-electronics in voltage independent r.c.b. s. The following article tries to find an answer to these questions. 30mA Principles of operation ( LS/DI- ) FI- ( 1) ( 2) Residual current-operated circuit-breakers functioning independent of the supply voltage DI- have for many years proved to be a most reliable measure of protection against indirect ( ) contact, and as far as the tripping threshold is not higher than 30mA, also as additional 2 protection in case of direct contact with live parts and as protection against fire hazards. They are therefore increasingly specified in standards for the electrical installation of The block diagram in Fig. 1 illustrates the buildings. The following article shows that the application of residual-current circuitbreakers (r.c.b. s) that use electronic components for the tripping function and whose that in Fig. 2 shows the functions of a voltage functions of a voltage independent r.c.b. s and performance depends on the supply voltage (voltage dependent r.c.b. s) at present does dependent r.c.b. s. In the Federal Republic of not ensure the same high degree of protection. Requirements and tests for the reliability of Germany voltage dependent r.c.b. s are only the electronic components and circuits therefore have to be incorporated in the available as double pole devices in specifications for residual-current circuit-breakers. combination with circuit-breakers for overcurrent protection. (FI-) FI- FI- Electromechanical (FI) RCCBs The use of residual current-operated circuitbreakers Voltage independent RCCBs functioning independent of the (FI-) supply voltage (voltage independent r.c.b. s) is becoming increasingly common as a result of [ years of practical experience, and on account 1-5 of the evidence proved by exports [1 to 5] of FI- their high efficiency concerning prevention of FI- accidents and fire. They are increasingly frequently specified in standards for the FI- A A FI FI- DIN VDE0660 CEE27 electrical installation of buildings. A Conaclousness of their responsibility for safety FI- in the part of the standards authorities have been a contributary factor, as expressed in FI- stringent requirements in DIN VDE 0664, CEE 27 and other national standards. Improvements in technology and in the quality of voltage independent r.c.b. s have also S In voltage independent r.c.b. s the release A may be either a magnetloally locked relay or a polarized tripping relay, preference being given to the latter. There is no galvanic connection between the trip circuit of the circuit-breaker and the power supply. Construction and played a port, Essential requirements for and function of voltage independent r.c.b. s improvements of voltage independent r.c.b. s ( from the technical point of view are for tripping at AC residual currents as well as at pulsating DC residual currents are described in ) instance: [6 and 7] and are illustrated in Fig C - development or the new generation of devices FI- which trip both at AC residual currents and at pulsating DC residual currents - improvements with regard to surge-current resistivity A significant feature of voltage independent r. c.b. s is that the energy for the release A is provided directly by the core balance current transformer S. An auxiliary power supply is therefore not required. - Increased performance with regard to breaking capacity and short circuit current withstandability, and more stringent 2 2/1

61 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) DI- - the reliability resp. the failure rate of the Voltage dependent r.c.b. s circuit-breaker in cooperation with the mains DI- FI- power supply, i.e. of the protective measure [8. 9] with respect to the influence from the mains. S When answering the question Why residual- circuit-breakers functioning V A current independent of the supply 7, both aspects therefore have to be taken into account. For the following consideration it is assumed that both voltage independent and voltage ( 3) DI- dependent r.c.b. s function at AC and A pulsating DC rasidual currents. The tripping Voltage dependent r.c.b. s have a design similar to that of voltage independent r.c.b. s. The significant difference in the function is, however, that in the event of residual current in the electrical installation, the signal given by the current transformer S is amplified by an conditions are stated in DIN VDE 0664, Part 1 [10]. Reliability resp. failure rate of the circuitbreaker [ 11 13] electronic unit V, which for its part depends on FI- π U auxiliary energy, and is then fed to the release π T (SN29500 A, which initiates the breaking operation. The DI- T) auxiliary energy required for the electronic π P amplifier is preferably taken from the mains supply system, as accumulators on acoount of their inadequate reliabilly and short service life are not suitable. Therefore there is usually a 3 5 [ 12] S galvanic connection between the tripping circuit of the circuit-breaker and the mains power supply (Fig. 3). In connection with the electronic amplifier V, usually simple current operated relay are used in voltage dependent r.c.b. s. DI- SN29500 A 11 ] M FI- DI- MIL MIL HDBK- 217 ( Determining parameters for the level of protection in an installation using disconnection from the supply by protective devices as measure for For a theoretical comparison of the reliability of the two devices, whose principles are shown protection in Fig. 3. λ = λ B π U π T π P (1) TN TT- - voltage independent r.c.b. s and λ B λ FI- - voltage dependent r.c.b. s ( 4) the following can be stated: - The part for the detection of the residual [ 8 9] current, i.e the core balance current transformer S, is of the same design for both [ 8 9] types of devices and therefore has roughly the same failure rate. FI- - The voltage dependent r.c.b. takes the tripping energy from the mains supply. Both FI- DI- the release A and the mechanism M may therefore be of sturdier construction than it is DIN VE the case with the voltage independent r.c.b. [ 10] This may result in a lower susceptability to The level of protection of a measure for the failures of the mechanism and of the release protection against indirect contact by of the voltage dependent r.c.b. disconnection from the supply - e.g. residualcurrent protection in TN- or TT-systems - is reliability of the two types of circuit-breakers - The most significant difference in the determined mainly by (Fig. 4): in question is embodied in the part for the - the reliability resp. the failure rate of the evaluation of the residual current. circuit-breaker itself, which has to disconnect The following considerations therefore are the circuit in the event of a dangerous deliberately based on the evaluation unit for a situation [8, 9] comparison of reliability. 2/2 (FI) Principles and terms for a reliability calculation including an example [ 11] λ λ h -1 fit ( ) 1 fit = λ λ The most commonly applied parameter in a reliability calculation for components and complete devices according to [11] is the failure rated λ.this value indicates the mean failure frequency to be expected over a period of time under given ambient and functional conditions. The failure rate λ has the unit h -1 and is expressed in fit (failures in time ), i.e. 1 fit = 1 failure in 10 9 component operating hours. The failure rate λ of an electronic component is essentially influenced by the operating cinditions, i.e, by the environmental conditions in practical service [11 to 13]. The so-called stress factors taking into regard the influence of - the operating voltage - the operating temperature - where applicable, the power ratio play an important part and must be taken into account

62 (FI) (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) when calculating the failure rate. These factors can be taken from the standard specified below. - π U ratio of actual to rated voltage - π T mean ambient temperature referred to operating conditions (index T to SN [11] ). - π P ratio of actual to rated power The most important factors influencing the failure rate of electronic components (In manufacturing and application) are shown in Fig. 6 [12]. The failure rate analysis does not take premature failures into account. These have to be eliminated in advance, for example, by means of a burn-in test. The following calculation of a failure rate for the evalution unit is based on Siemens Standard SN Failure Rate of Components [11]. This standard is continuously updated and serves not only within Siemens AG as a basis for reliability predictions, but is recognized by public contractors and other customers all over the world. The failure rates given in this standard were worked out from both practical and test experience, taking into account other sources such as the MIL-HDBK-217 Handbook (Military Standardization Handbook: Reability Prediction of Electronic Equipment ) and adapted to specified conditions (reference conditions), The values indicated in this standard reflect the state of art attained by manufacturers where adequate quality assurance measures are taken. Taking the factors mentioned into account the failure rate is given in the equation: λ = λ B π U π T π P λ B denotes the failure rate under reference conditions and λ the failure rate under operating conditions. R A Earthing resistance (load) 1 2 (FI-) TT- (DI-) TT- A A M M S S C 1 2 V T T n n R B R B R A R A Fig. 1, Block-diagram of voltage independent r.c. b. s e.g. in TT system Fig. 2, Block-diagram of voltage dependent r.c.b. s e.g. in TT system A Release A Release M Mechanism M Mechanism S Core balance current transformer S Core balance current transformer C Capacitor with soidering joints 1 and 2 V Electronic ampilifier T Tast device n Secondary winding n Secondary winding R s Earthing resistance (system earth) Earthing resistance (system earth) Earthing resistance (load) R s R B 1 C M A 2 R A n N N S L1 L2 L3 N R A R B M A R A V n N N S L1 L2 L3 N 2 2/3

63 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) (FI) detection evaluation tripping mechanism a) A S FI- Voltage Independent r.c.b. Polarized tripping relay or magnetically locked relay M b) S DI- Voltage dependent r.c.b. electronic amplifier A current operated relay M mains supply 3 FI- DI- ( ) T vj2 =T u +3.6K T U =40 C S A M Fig. 3. Functional units of voltage independent r.c.b. s and of voltage dependent r.c.b. s (both of them AC- and pulsating DC-sensitive) S Core balence current transformer A Release M Mechanism T =85 C T vj2 =40 C +3.6K=43.6 C SN π T =0.7 =3mA u T vj2 =85 C+3.6K=88.6 C Calculating the failure rate of an analogous SN integrated circuit (2) (IS) T vj2 =T u +PR th λ SN MSI ( P=UI=8V x 3mA=24mW π T =4 λ B (1) λ ) R th =150K/W / λ=λ B π U π T λ B =150 fit [ (IS) SN [11] U n =11V] T vj2 =T u +24mW x 150K/W V U =40 C T vj2 =T u +3.6K λ=150 fit x 1.1 x 0.7=115.5 fit T vj1 =55 C D T u =85 C λ=150 fit x 1.1 x 4=600 fit ( ) U/U n =8V/11V=0.72 SN T u =40 C T u =85 C T u =40 C 85 C U=8V 11V π U =1.1 6 π U =4 reliability of circuit-breaker on its own ( ) reliability of circuit-breaker in cooperation wit mains supply system (protection device) and Interlinking 4 Fig. 4 Parameters for the degree of protection by a protective measure with disconnection from the supply. & indicates the level of protection against electric shock or fire hazard λ=150 fit x 3 x 4=1800 fit An integrated circuit (IC) provides a useful example for demonstrating the respective failure rates λ under reference conditions and under operating conditions. According to the Siemens Standard SN the reference failure rate for a medium-scale 2/4

64 manufacturer (FI) user proper design suitable material incorrect use electrical underload or overload integrated circuit (MSI) is λ =150 fit (rated voltage of the integrated circuit (IC) U n =11V). The reference condition is the equivalent junction temperature T vj1 =55 C Operating conditions (in service) in this example are assumed to be the following: - Ambient temperature T u =40 C resp. 85 C - Operating voltage U=8V resp. 11V - Operating current =3 ma The equivalent junction temperature T vj2 under operating conditions is worked out by means of equation (2): T vj2 =T u +P. R th (2) with P=U. I=8V 3mA=24mW, R th =150K/W, guide value for thermal resistance for transition from casing to ambient air from Standard SN T vj2 =T u +24mW 150K/W. T vj2 =T u +3.6K. From the ratio of operating to rated voltage of the integrated circuit (IC) U/U n =8V/11V=0.72 the stress factor for voltage ratio π u can be optimal manufacture electronic component worked out with the aid of Standard SN , its value being π u =1.1 From an equivalent junction temperature given with T vj2 =T u +3.6K, the ambient air temperature N mains L proper storage dynamic mechanical climate, oil stress humidity corrosion ZNR R 3 C 8 / CT (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) protected transport working temperature Th R T 6 DI- Fig. 6 Circuit-diagram of tripping circuit for voltage dependent r.c.b. s R1 + D1 C2 test circuit resistor test button being T u =40 C T vj2 =40 C+3.6K=43.6 C by reference to standard SN , the stress factor for operating temperature dependence can be determined as π T =0.7. For T u =85 C, and given an equivalent junction temperature T vj2 =85 C+3.6K=88.6 C the stress factor for operating temperature dependence can be worked out with the aid of Standard SN as π T =4. The failure rate λ B under reference condition can be converted to λ under operating conditions by means of equation (1): λ= λ B π u π T. Here, π p needs not to be taken into account according to [11]. For T u =40 C λ =150 fit x 1.1 x 0.7=115.5 fit and for T u =85 C λ =150 fit x 1.1 x 4=660 fit As the example shows, the failure rate λ of the integrated circuit increases by a factor of roughly 6 solely due to the increase in ambient temperature from T u =40 C to T u =85 C If the integrated circuit is then operated under rated voltage conditions, the failure rate at an ambient temperature of T u =85 C and taking into account a stress factor π u =3 is λ =150 fit x 3 x 4=1800 fit This simple calculation example shows how important it is to carry out reliablility calculation before equipping a protective device with a large number of electronic components, the failure of which will endanger health and lifes of persons. Limits for the failure rate of electronic circuits must therefore be specified in the standards for protective devices. / Current operated relay + C C 1 6 R2 IC C4 C3 C5 C7 C 9 2 / CT secondary 2/5

65 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) (FI) FI- DI- - voltage dependent r.c.b. : λ= fit, resp. =827.7 fit if the ceramic capacitors are Failure rate of the evaluation unit of voltage independent and voltage dependent r. c. b. 85 C replaced by high quality capacitors with ( metallized polyethyleneterephthalate foil. As the calculation of th failure rate λ for the 11 voltage dependent r.c.b. shows, λ decreases FI- DI- significantly if the ceramic capacitors C 4, C 5, C 6 λ MIL- and C 7 (Fig. 6) are replaced by high quality capacitors with metallized poly-ethyleneterephthalated foil. It is well [10] 250A With the aid of (11) the failure rates λ of the ( FI- evaluation unit (Fig. 3) of voltage independent ) r.c.b. s and of voltage dependent r.c.b. s were calculated on the basis of existing circuits and FI- a comparison was made. Only those electronic 2 components and joints which could lead to ( 1) non-operation of the circuit-breaker if they DI- themselves were to become defective, were 6 taken into the calculations. The addititonal 14 components required in order to reach the SN surge current resistivity of 250A specified in 85 C λ [10] (with the voltage independont r.c.b. solely FI- λ=5 fit one varistor) were not taken into consideration known that passive components and discrete semiconductors show considerable differences in their failure rates. In terms of use of the circuit-breaker for 20 years in practical installations failure percentages are as follows: - for voltage independent r.c.b. : 0.09% - for voltage depedent r.c.b. : 28.3%, resp % (where metallized polyethyleneteraphthalate foil capacitors are used). In the more favourable case with π u =85 C, this leads to the following failure ratio: DI- λ= fit with both versions. Voltage dependent r.c.b. = 14.5% MKT- Whereas with the AC- and pulsating DCsensitive Voltage independent r.c.b. 0.09% =161 λ=827.7 fit versions of the voltage independent r.c.b. the evaluation unit consists solely of a Even taking into account the difference in the releases and mechanical parts, this failure ratio DI- λ high quality capacitor with two soldering joints MKT- (Fig. 1), the corresponding component of a C 4 C 5 C 6 C 7 ( 6 λ voltage dependent r.c.b. contains considerably more electronic components and joints in order to ensure a similar performance, Fig illustrates the circuit of such a circuit -breaker FI- with 14 electronic components. will be of a similar order. Tests have shown that a temperature of 85 C in switching devices, depending on the installation conditions and the stress level, e.g. in distribution boards, can ocour. It should be mentioned that this reliability comparison represents a concrete example. Depending on 0.09% Calculation of the failure rate λ (Table 1) with the electronic components selected, that is DI- the aid of Siemens Standard SN whether they are of consumer quality or 28.3% 14.5% ( MKT- ) produces at a temperature of 85ºC the according to MIL - standard, and also 85 C following results for this unit: depending on the number of components DI- = 14.5% - voltage independent r.c.b. : λ=5 fit used and the stress factors mentioned before, =161 FI- 0.09% other failure rates or failure ratios may be obtained. 2/6

66 (FI) (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) FI- Voltage independent r.c.b. DI- Voltage dependent r.c.b. λ B λ λ B λ λ 1) Number of components Number of components designation designation T u =85 C T u =85 C T u =85 C per at per at at component T u =85 C component T u =85 C T u =85 C 1 MKT IC Capacitor with metallized Integrated circuit IC polyethyleneterephthalate foil fit Soldering joints 1 and 2 Voristor ZNR with 0.5 fit 1 T h /Thyristor T h T u =85 C T u =85 C T u =85 C per at per at at component T u =85 C component T u =85 C T u =85 C 1 D Silicon diode D 1 3 C 1 C 2 C Tantalum capacitors C 1, C 2, C 3 4 C 4, C 5, C 6, C Caramic capacitors C 4, C 5, C 6, C 7 1 MKT Capacitor with metallized polyethyteneterephthalate foil Cs 1 R 1 1W Resistor R 2 1W 1 R 2 1/4W Resistor R 2 1/4W / Soldering joints manually/automized λ 5 fit λ fit fit Failure rate λ Failure rate λ 20 % % Failures in 20 years Failures in 20 years 1) MKT- C 4 C FI- 6 DI- 1) Ceramic capacitors C 4 to C 7 replaced by capacitors with polyerthyteneterephthalate foil. Table 1. Comparison of evaluation units of voltage independent r.c.b. in Fig. 1 and voltage dependent r.c.b. in Fig. 6, each AC - and pulsating DC - sensitive. Calculation of failure rate. 2/7

67 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) (FI) a) N- b) N- c) N- L1 N L1 N L1 N F F U B F 7 N DI- /Fig. 7 Interruption of the neutal conductor N in mains supply system. The voltage dependent r.c.b. is ineffective: a) If on a defective appliance dangerous touch voltage exists between the healthy phase and earth. b) ( DI- ) If a healthy phase is touched (even highly sensitive voltage dependent r.c.b. s cannot provide protection). c) If fault current flows through a defective point in the insulation of an appliance or cable, which can possibly cause fire. N Reliability of the protective device in DI- 15 cooperation with the protection measure in 2 5 the mains power supply DI- 85% 110% (EMN) 4 U n DI- VDE DI- LS/DI- [ 18 DI- DI- L 1 N The efficiency of a protective measure with 0.85U n 50V disconnection from the supply is determined FI- DI- both by the reliability of the circuit-breaker on 1: its own and by the reliability of its function in cooperation with the mains power supply. Fig. N ( ) 4 show this as AND Interlinking. L ( ) 1 The following examples demonstrate the unreliable performance of voltage dependent r. DI- DI- LS/DI- c.b. s, with respect to protection, where 3 voltage independent r.c.b. s are used, such problems do not occur. ( 7a c) TN- L1 - Example 1: Interruption of the neutral N in DI- PE 14 the mains (e.g. in an overhead line system) or 3 DI- DI- of phase L (e.g. as a result of the operation of L 1 /L 2 /L 3 /N ( 2) the overcurrent protective device). DI- 4 With a partial mains failure, the supply voltage DI- for the evaluation unit of the voltage 1 L 1 N dependent r.c.c.b. is lost. The voltage L 1 N DI- dependent r.c.b. is therefore ineffective. L 2 DI- Nevertheless, the remaining part of the L 3 system can lead to a dangarous situation (Fig. 7a to 7c). 3 L 1 L 2 L 3 With multi-pole voltage dependent r.c.b. s 2/8

68 (FI) (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) e.g. triple pole with neutral in a supply system with L1/L2/L3/N (Fig. 2), the probability that such a danger will occur is even higher, as the supply for the electronic amplifier of the voltage dependent r.c.b. is usually taken from only one phase L1 and/or the neutral N fails, the voltage dependent r.c.b. is again ineffective, Phases L2 or L3 can, however, constitute a source of danger, which is not eliminated. The supply security for the electronic amplifier could be increased in this case by taking the power supply from all three phases L1, L2 and L3 and the neutral N. This, however, calls for more electronic components, which would lead to a further increase in the failure rate of the voltage dependent r.c.b. - Example 2: voltage dependent r.c.b. s usually have a function range for the electronic amplifier of 85% to 110% of the rated voltage U n in which tripping is ensured in the event of a fault. For example, the residual-current tripping of voltage dependent r.c.b. s with overload protection according to Draft VDE 0641 part 4 (18) is verified at the rated supply voltage level only. In a faulty mains supply system in which the voltage e. g. of phase L1 to the neutral N is less than 0.85 U n, but in excess of the maximum permissible touch voltage 50V, therefore constituting a danger to persons in the event of a fault, the voltage dependent r.c.b. s cannot operate. Such system faults have occurred in areas of several electricity supply companies and have been recorded. In one particular case, such a failure occurred in the early morning and was not cleared for abort 1 hour. This example shows the particular danger in bathrooms, for example, if voltage dependent r.c.b. s with or without overload protection are used. - Example 3: if a short-circuit between phase L1 and the PE in a TN system occurs, operation of the voltage dependent r.c.b. s is not ensured as shown in (14), as the operating voltage for the electronic amplifier is reduced. - Example 4: The amplifier of a voltage dependent r.c.b. contains electronic components which are sensitive to overvoltages, and which can be destroyed in the event of a lightning or switching surge voltage, despite all precautionary measures. Operation of the voltage dependent r.c.b. s is in such a case ineffective. In many systems there exist no, or at least no sufficient, protective measures against surge voltage. Overvoltage protection incorporated merely in the equipment itself is not adequate in every case. Article (15) describes, how in recent years damage by overvoltage surges has increased alarmingly, due also to the increased use of electronic equipment with components sensitive to overvoltages. - Examples 5: it is well known that it is extremely difficult to protect electronic equipment against interferences such as high frequency oscillations; electromagnetic compatibility (EMC) is becoming more and more important. With voltage dependent r.c.b. s such interferences can lead either to an increaes in the tripping threshold - i. e. reduction of the level of protection - or to nuisance tripping - i. e. reduction in service reliability. 2 Conclusions as regards prevention of accidents and fires in DI- TN and TT systems, for which there is much evidence (1 to 5) and proof in years of practical DIN FI- use, must not be jeopardized by the use of VDE voltage dependent r.c.b. s. Standards FI- DIN authorities in the Federal Republic of Germany VDE FI/LS have so far correctly supported this view. 21 Consequently, it was expressly mentioned in a DI- FI- note in DIN VDE 0100 Part 410/11.83(17) that, LS/DI- for example, voltage dependent r.c.b. s with DI- LS-/DI- overcurrent protection to DIN VDE 0641 Part 4 (draft) (18) cannot be considered to be 1 residual-current protective devices to DIN VDE 5 FI- 0664, it has also been clearly stipulated (19) TN- TT- that additional protection in case of direct contact with live parts, according to DIN VDE DI Part 410, Section 5.5, can only be achieved by means of a voltage independent The report clearly shows that a voltage r.c.b. to DIN VDE DIN VDE /83 11 dependent r. c. b. cannot stand comparison In the meantime a new draft of DIN VDE 0100 DI- either with the voltage independent r.c. b. to Part 410 A1 hes been submitted to the experts DIN VDE ( ) 18 DIN VDE 0664 Part 1 (10), or with a voltage for comments in which voltage dependent r.c. independent r. c. b. with overcurrent b. s with overcurrent protection are placed on 19 DIN VDE protection to DIN VDE 0664 Part 2 (16). This the same level with voltage independent r.c.b. 5.5 DIN applies as regards both individual reliability and s as regards this additional protection. VDE0664 (FI-) cooperation of the circuit-breaker with the Objections to this draft have, howerver, yet to power supply system, i. e. the protection be discussed. DIN VDE A1 measure. In rooms containing a bathtub or shower, In order to be able to use voltage dependent r. according to VDE 0100 part 701/05.84 (20) only LS/DI- c. b. s or voltage dependent r. c. b. s with voltage independent r. c.b. s to DIN VDE 0664 overcurrent protection at least for special are permitted, likewise on account of the risks DIN VDE applications, it is necessary to specify limits mentioned. In the interest of a high degree of /84 5 for the maximum permissible failure rate for safety, both national and international DIN the electronic equipment. standards authorities will move in this VDE0664 FI- The efficiency of voltage independent r. c. b. s direction. If today voltage independent r.c.b. s 2/9

69 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) (FI) are considered the best option in protective measures, this is a result of endeavours to maintain the high protection level afforded by, and to popularize, this type of protective device. The Federal Institution for Work Safety and Accident Prevention has mathematically illustrated in their research report (21) the efficiency of voltage independent r.c.b. s by means of fault-tree analysis. The use of voltage dependent r.c.b. s with or without overcurrent protection without prior determination of reliability limit values, would reduce the safety level considerably. This would constitute a high rick for both persons and materials. This, however, does not imply that the use of electronic components in the field of protective devices generally may not be acceptable. It is possible to use electronic components, if and where standards for the design of the devices and test specifications can ensure the corre-sponding level of sefety and reliability. Moreover, in many cases an extension of the range of protection can be established by use of electronics. References [1] Kahnau, H.W.: Schutzmaßnahmen. VDE- Fachber. 33. Berlin & Offenbach: vde-verlag, 1982, pp [2] Biegelmeier, G.; Rabitsch, G.; Koerperstroeme und Baruehrungsspannungen in der Badewanne. Elektrtech. u. Masch.-bau 103 (1986) Vol. 2, pp [3] Seip, G.; Installationstechnik im In-und Ausland, VDE-Fachber. 33. Berlin & Offenbach: vde-verlag, 1982, pp [4] Feitknecht, J.: Fehlerstrom-Schutzschalter - Konstruktive Losungen, Entwicklungstendenzen und Grundsatze fuer lhre Anwendung, etz Elektrotech. Z. 105 (1984) Vol. 13, pp [5] Hofmann,W.; Respondek, p.: Entwicklung, Einfuehrung und Anwendung empfindlicher Fl- Schutzschalter. Der Elektromeister 60 (1985) Vol. 18, pp [6] Roesch, H.: Aufbau und Wirkungsweise eines Fehlerstromschutzschalters, Anforderungen an seine magnetischen Bauteile. J. of Magn. and Magnetic Mater. (1978) Vol. 9, pp [7] Roesch, H.: Fehlerstromschutzschalter fur Aufloesung bei Wechselstromen und pulsierenden Gleichfehlerstroemen. Siemens Energietech. 3 (1981) H. 6, S [8] Scherbaum, R.: Beurteilung von Fehlerstromschutzschaltern. in Theorie und Praxis. etz-b Elektrotech. Z.28 (1976) Vol. 6/7, pp [9] Winkler, A.: Zur Zuverlaessigkeit von Fehlersrtomschutzschaltern. Der Elektromeister 57 (1982) S. -H. 30 Jahre Fehlerstromschutzschalter, S [10] DIN VDE 0664 Teil 1/10. 85: Fehlerstrom- Schutzeinrichtungen. Fehlerstrom- Schutzeschalter fuer Wechselspannyung bis 500 V und bis 63 A. Berlin & Offenbach: Vdeverlag. [11] Siemens-Norm SN : Ausfallraten Bauelemente. Erwartngswerte. Allgemeines. Munchen: Siemens AG [12] Schaefer, E.: Zuverlaessigkeit, Verfuegbadeit rnd Sicherheit in der Elektronik. Wuerzburg: Vogel [13] Bajenescu, T. l.: Ausfallanalyse elektronischer Komponenten. Elektrotech. u. Masch.-bau 101 (1984) H. 10, S [14] TC 64 (Sec) 400: Collation of Comments on Doc. 64 (Sec) 378. Genf: Int. Elektrotech. Komm. (IEC) [15] Hasse, P.: Runtsch, E.: Personen-und Sachschutz in Niederspannungsanlagen. etz Elektotech. Z. 105 (1984) Vol. 6/7, pp [16] DIN VDE 0664 Teil 2/10. 83: Fehlerstrom- Schutzinrichtungen. Fehlerstrom- Schutzeschalter mit Ueberstromausloeer (FI/ LS-Schalter) bis 415 V Wechselspannung und bis 63 A Nennstrom. Berlin & Offenbach: vdeverlag [17] DIN VDE 0100 Teil 410/11. 83: Errichten von Starkstromanlagen mit Nennspannungen bis 1000 V; Schutzmaßnahmen: Schutz gegen gefaehrliche Koerperstrome. Berlin & Offenbach: vde-verlag [18] DIN VDE 0641 Teil 4/ (Entwurf): Leitungsschutzschutzschalter bis 63 A Nennstrom und bis 415 V Wechselspannung mit Differenzstromausloeser (LS/DI-Schalter). Berlin & Offenbach: vde-verlag [19] Kanhnau, H. W.: Fehlerstromschutzschalter-ein wirksamer Schutz fuer Personen und Sachen. Der Elektromeister 59 (1984) Vol. 3, pp [20] DIN VDE 0100 Teil 701/05. 84: Errichten von Srarkstromanlagen mit Netzspannungen bis 1000V. Raeume mit Badewanne oder Dusche. Berlin & Offenbach: vde-verlag [21] Edwin. K. W.; Jakli, G.; Thielen, H.: Zuverlaessigkeituntersuchungen an Schutzmaßnahmen in Niederspannungsverbraucheranlagen. Forschungsber Dortmund: Bundesanst. fuer Arbeitsschutz und Unfallforschung (1979), pp /10

70 Technical Description Residual Current operated Circuit Breakers (RCCBs) Application DIN VED n 30mA DIN VED Protection against dangerous shock currents ( ) Fire protection according to DIN VED 0100 Part 720 according to DIN VED 0100 Part 410 By installing RCCBs with n 30mA n 30mA ( ) protection from direct contact (direct personnel-protection) is also provided. By installing RCCBs with n 30mA protection against the outbreaks of electrically ignited burning due to insulation failure is provided. Protection from indirect contact (indirect personnel-protection). Protection is provided by disconnection of dangerous high touch voltage caused by a short circuit to exposed conductive parts of equipment. Additional protection measure by disconnection in the event of contact with normally live parts. Provided protection 2 n 30mA n 30mA Whilst RCCBs for rated fault current n 30mA offer protection against indirect contact, by installing RCCBs with n 30mA a high level of protection is achieved by additionally providing protection from unintentional direct contact with live parts. IEC 479 Regions of effects of AC currents of IEC 479 /Region Usually no reaction effect. /Region Usually no pathophysiologically dangerous effect. /Region Usually no danger of fibrillation. /Region Fibrillation danger. m t m : Body current; t: Operation duration mA values in the area 4 are dangerous, because they can 4 cause fibrillation of the heart, which can lead to the death of the person concerned. The 10 30mA tripping ranges of RCCBs with 10 30ms The above diagram shows the rated fault currents of 10 and 30mA are also plotted. The DIN VED 0664 EN physiological reactions of the tripping is on average between 10 IEC human body, summarised in and 30ms. This lies within the 0.2s (200ms) 0.3s (300ms) regions of effects of currents. Consequently the current/time tripping time of max. 0.2s (200ms) or 0.3s (300ms) according to DIN VDE 0664 and EN or IEC Therefore RCCBs with rated fault current 10 or 30mA also offer reliable protection, even if a current flows through a person due to unintentional direct contact with live parts. This level of protection cannot be obtained by any other comparable measure for protection from indirect contact. 2/11

71 Technical Description Residual Current operated Circuit Breakers (RCCBs) Dangerous shock currents Wherever RCCBs are used, a corresponding protective earth conductor must also be provided and connected to all equipments etc. Therefore current flow through a human body can only occur if two faults appear, or if the person makes unintentional contact with live parts. Damaged insulation Examples of unintentional direct contact PE break and insulation defect in the equipment Provided protection Conductors interchanged R m R st If a person directly touches live parts, two resistances determine the level of the flowing current: the internal resistance of the person R m and the standard earth leakage resistance R st. For purposes of accident prevention the worst case must be assumed, which means that the local earth leakage resistance is almost zero. 1000Ω AC 230V 230mA The resistance of the human body is dependent on the current path. Previous measurements show, for example, with a current path by hand to hand or hand to foot, approximately 1000Ω. With a fault voltage of 230V AC, the resulting current is 230mA from hand to hand. Schematic drawing: additional protection from directly touching live parts Fire protection max. 0.5A are used. The upper limit, however, should not be applied to ensure optimal DIN VED A protection RCCBs of max. 0.3A should be used. 0.3A The additional protection against fires provided DIN VDE 0100 Part 720 demands for by RCCBs should not be used on locations Locations exposed to fire measures to prevent fires, which emerge due to insulation failures. A distinction is drawn between: Short-circuit fire protection Earth-fault fire protection exposed to fire, it should be used generally. The short-circuit fire protection is ensured by overcurrent protection devices, and earth-fault ( ) fire protection by RCCBs. It is stipulated that Safe clearance (only for cable and wire laying). only RCCBs with a rated fault current up to 2/12

72 Technical Description Residual Current operated Circuit Breakers (RCCBs) Construction and operation 3 winding. The construction of a RCCB depends essentially on 3 functional groups: However if a defect in insulation causes a fault current, the balance becomes disturbed, and a DIN VED residual magnetic field remains in the 1. Summation 0664 transformer core. This produces a voltage in current transformer for fault current detection the secondary winding, which via the release 2. and the contact latching mechanism Release for conversion of the electrical disconnects the circuit with the insulation measured value into a mechanical release 3. Contact latching mechanism with the contacts. The summation current transformer includes all necessary current carrying conductors, i.e. defect. This tripping principle works independently from the supply voltage or an auxiliary supply. also including the neutral conductor. Under normal conditions for the summation current transformer the magnetising effects of current carrying conductors, in accordance with Kirchhoff s law, cancel each other out. There is no residual magnetic field remaining, which could induce a voltage in the secondary This high level of protection is a requirement for RCCBs that comply with DIN VDE This is the only way to ensure that the full protective function of the RCCB is maintained, even in the event of a supply fault, e.g. if a phase conductor fails or the neutral conductor is interrupted. 2 Utilization of four-pole Residual Current operated Circuit-Breakers (RCCBs) in three-conductor, three-phase networks IEC According to the standard IEC , the user must be informed of the necessity to T penriodically actuate the device by pressing the test pushbutton designated by the letter T to check that the device is operating correctly during its life-time. See mounting instructions 1, 3, 5, 2, 4, 6 and indications on the plate. 3 When four-pole Residial Current operated Circuit-Breakers (RCCBs) are used in threeconductor, three-phase networks, the connection must be made to the terminals 1, 3, 5 and 2, 4, 6. To make sure that the test pushbutton operates corretly, terminal 3 has to be shunted to the neutral. Uses 3 fault current to flow which has about the same ( DIN VED magnitude of the rated fault current for the ) IT RCCBs may be used in all three distribution protecting RCCB. networks (DIN VED 0100 Part 410), and in an IT Also the IT-network can still be monitored network provided that the capacitance of the using an insulation monitor. Both protective IT network against earth is sufficient to allow a systems do not interfere with each other. 2/13

73 Technical Description Residual Current operated Circuit Breakers (RCCBs) Types of current ( 1) The use of electronic components in household appliances and in industrial plants for equipment with protective earth conductor (Protection class I) has the effect that when an insulation failure occurs the fault currents flowing through RCCB are not sinusoidal. The standards for RCCBs contain additional Type of current requirements and test specifications for fault currents, which within a period of the supply frequency reach zero or approach zero. RCCBs, which trip on both sinusoidally AC fault currents as well as at pulsating DC fault currents are marked with the symbol. Tripping current n AC fault currents n ( ) Pulsating DC fault currents Half-wave current (pos. and neg. half-wave) Phased half-wave currents: Phase angle 90º el n 135º el n 3 6mA Half-wave current with superimposed smooth DC current of 6 ma DIN VDE To DIN VDE 0664 Part 1 specified tripping currents for RCCB devices 1.4 n + 6 ma max. 1.4 n + 6 ma DC fault current ( X- CT- ) Various types of circuits are used for electrical equipment in industry, which during a fault can produce a smooth DC fault current or such with slight residual ripple, e.g. frequency converters, ray generators or UPS systems. This is explained using a three-phase rectifier circuit as an example. AC/DC sensitive fault current protective devices Principle circuit diagram 6 Three-phase bridge connection-six pulse Three-phase star connection Load current Residual current 0160) separation, which itself however can only be Pulsating currents-sensitive RCCBs do not achieved with heavy and expensive detect such DC fault currents and cannot transformers. With the new DC sensitive switch off; besides their tripping function is RCCB a technically flawless and economical negatively influenced. Therefore electrical solution is now available. This residual current equipment which during faults produces such circuit-breaker has been listed in the pren 50 fault currents, must not be protected by 178 standard (replacement for DIN VDE 0160) pulsating current sensitive RCCBs connected Equipment for strong current plants with on the electric supply network. Alternative electronical operating equipment. pren ( DIN VDE protection methods can for example be safety 2/14

74 Technical Description Residual Current operated Circuit Breakers (RCCBs) Construction and operation The basis for the AC/DC-sensitive device comprises a pulsating current-sensitive protective switching unit with a release that operates independently of the supply, together with an additional unit for the registration of smooth DC fault currents. The following diagram shows the fundamental construction: A Release M Mechanics of the protective device E Electronics for tripping smooth DC fault currents T Test button n 2 Secondary winding W1 Summation transformer for detection of sinusoidally fault currents W2 Summation transformer for detection of smooth DC fault currents W1 70% ( ) conductor and neutral conductor). Consequently the tripping due to smooth DC W2 fault current is provided for whenever such E N- forms of fault current appear, also during A The summation current transformer W1 constantly monitors the electrical installation for alternating and pulsating formed fault disturbances of the electric supply network, e. g. when the neutral conductor is interrupted. Even in the extremely improbable case that two phase conductors and the neutral currents. The summation current transformer W2 detects the smooth DC fault currents and gives a switch-off signal via the electronic unit E to the release A. For the purpose of a highly secure supply, the power supply for the electronic unit comes from all three phase conductors and the conductor are lost and the remaining intact phase conductor is a fire hazard due to an earth fault, protection is then provided by the pulsating current sensitive switching part neutral conductor. Besides, it is designed such which, due to its supply-independent release, 3 that the electronics still operate at a voltage reliably switches the RCCB off. reduction of 70% (e.g. between phase 2/15

75 Technical Description Residual Current operated Circuit Breakers (RCCBs) Project planning with a DC sensitive RCCB. The branching of circuits with such electrical At the project planning and design stage equipment to circuits with pulsating current consideration should be given to electrical sensitive RCCBs is not permissible. The equipment, which under fault conditions can produce smooth DC fault currents; it will be arranged in its own circuit and be protected smooth DC fault current from such equipment will damage the tripping unit of the pulsating current sensitive RCCB. Circuits with electrical equipment which under fault conditions have AC fault currents and/or pulsating DC fault currents Circuits with electrical equipment which under fault conditions can also have smooth DC fault currents DIN VDE required resultant disconnection at a tripping The tripping requirements according to DIN IEC VED 0664 apply also for the DC sensitive current from 0.50 to 2 x n. AC/DC sensitive RCCBs are marked with the 479 RCCB. symbols. This new protective device x n Tripping due to smooth DC fault currents complies with the current compatibility curves was also issued with a VDE monitoring mark with the VDE Register No VDE according to IEC 479, which expands the Three usual drawing way of resident electrical distrdution in china MCB (5SX 5SQ) MCB (5SX 5SQ) MCB (5SX 5SQ) Total lines protection of residual current ( ) Some of lines (socket) protection of residual current ( ) Some of lines (socket) protection of residual current 2/16

76 Technical Description Residual Current operated Circuit Breakers (RCCBs) Selective disconnection Main distribution Sub distribution board board 3kA S for delayed disconnection /undelayed Residual current circuit-breakers normally have an instantaneous release. This means that a series circuit of such a residual current circuitbreakers will not operate when a fault occurs. To obtain a series switching of selective RCCBs the series connected devices must be staggered in the release time as well as the rated fault current. The selective RCCBs have an increased peak current of 3 ka. Selective RCCBs are marked as follows: S The table below details possible combination of RCCBs for selective disconnection without time delay. n 0.3 A 0.01 (10 ma) 0.03 (30 ma) n 63 A 16 25; 40; 63 n 0.5 A 0.01 (10 ma) 0.03 (30 ma) 0.3 n 125; 160 A 16 25; 40; 63; ; 40; 63; 125 n 1.0 A 0.01 (10 ma) 0.03 (30 ma) 0.3; 0.5 n 125; 160; 224 A 16 25; 40; 63; ; 40; 63; 125; 160 AI Short-time delayed disconnection kA fault-current protective devices may be used. ( PE- K This devices have a minimal releasing time ) Electrical loads which cause leakage currents n when they are switched on (e.g. via a supressor capacitor between the external from 10ms. i.e. they must not operate with a fault impulse of 10ms. the releasing conditions of DIN VDE 0664 Part 1 must be met. The conductor and PE flowing transient fault devices exceed the requirements of DIN VDE currents) may cause unwanted tripping of the instantaneous fault current device, if the leakage current of the rated fault current in of 10ms the protective device is exceeded. 0664, because they have a impulse withstand strength of 3kA. Short-time delayed protective devices are marked as follows: K. DIN VDE In such cases when it is not possible to DIN VDE remove the fault source short-time delayed 2/17

77 Technical Description Residual Current operated Circuit Breakers (RCCBs) Switching capacity short-circuit capacity DIN VDE RCCB has a corresponding short-circuit ( ) capacity. Tests have been specified for this 3 (TN TT IT ) In accordance with the established standard DIN VDE 0100 Part 410 (protection against purpose. The short-circuit capacity of the combination must be marked on the RCCB. TN dangerous shock currents), RCCBs may be used in all three distribution networks (TN-, TTand IT- networks). Subsequently in TN networks where the neutral conductor is used as the protective conductor (PE), short-circuit type fault currents can be produced in the Siemens RCCBs, when in combination with a corresponding back-up fuse, have a shortcircuit capacity of A. That is the highest possible level of short-circuit capacity according to the VDE standard. Data regarding the breaking capacity and the A VDE- event of a fault. Therefore RCCBs must have a maximum short-circuit back-up fuses for back-up fuse, which in combination with the RCCBs is shown in the following table. NH DIAZED NEOZED gl/gg Rated current Breaking capacity Maximum short-circuit back-up fuses NH, DIZED, NEOZED of the RCCB at rated voltage Operating class gl/gg for the RCCB AC 125V 400V AC 500V AC 125V to 400V AC 500V A A A A 16 to Impulse current withstand 8/20 µs Î=250A During thunderstorms, travelling surges in the atmosphere can in the form of overvoltages via overhead lines penetrate the installation and trip the RCCB. To avoid this unwanted tripping, RCCBs must pass specified tests to verify their impulse current withstand capability. Testing is performed with an impulse current Î = 250A of the standardised impulse wave 8/20 µs. DIN VDE Characteristics of a surge current to DIN VDE 0432 Part 2 T s front time in µs T r virtual time to half wave in µs O l virtual origin I m peak value 8/20 µs ( 8 µs 20 µs) Impulse current overvoltage 8/20 µs (front time 8 µs; virtual time to half wave 20 µs) E20001-P311-A17-V1 Further information regarding RCCBs is contained in the publication Greater Safety through Earth Fault Protection by Residual Current Operated Circuit-Breakers, Order No. E20001-P311-A17-V1. 2/18

78 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Tables of selectivity 5SU..4 5SU..6 5SU..7 Neozed Diazed NH Values of selectivity between fuses and residual current operated circuit breakers in series Downward: Circuit breakers 5SU..4, 5SU..6, 5SU..7 Upward: Fuses Neozed, Diazed, NH / DOWNWARD NEOZED DIAZED NH UPWARD N 5SU..4 5SU..6 5SU..7 RESIDUAL CURRENT OPERATED CIRCUIT BREAKERS 5SU / Characteristic PI (ka) C 2 ka / Values of backup in ka > > > > > > > > SU..6 5SU..7 Neozed Diazed NH Values of back-up between fuses and thermomagnetic differential circuit breakers in series Downward: Circuit breakers 5SU..6, 5SU..7 Upward: Fuses Neozed, Diazed, NH / DOWNWARD / UPWARD NEOZED DIAZED NH N 5SU THERMOMAGNETIC DIFFERENTIAL In (A) CIRCUIT BREAKERS N SERIES 5SU / Characteristic PI 1) C ka / Values of backup in ka ) 400V ~ (3P+N) (230V~ 1P+N 230/400V~ 1P) 230V ~ The values of selectivity cited are attributed to the voltages of 400V ~ (3P+N). For the bipolar circuit breakers employed at the voltages of 230V ~, the selectivity is guaranteed by the most elevated values. 2/19

79 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) 5SM current (residual differential IEC current) connected to earth, EN compare the fault current value with the tripping differential value (sensitivity threshold), and open 5SM the protected circuit when the DIN fault current value is greater than 18 mm (1 ) the threshold value. ( ) 45 mm These devices together with the 5SM earthing system are therefore ( used to protect people in case of ) indirect contacts. The RCCB which are characterized by a rated residual differential current (sensitivity) less than or equal to 30 ma can be used as an additional protection in case of direct ( ) 30mA contacts. In addition to the function of protection against direct or indirect contacts, the Residual Current operated Circuit-Breakers (RCCBs) incorporate a protective function against the danger of fire (21 ) in the event of insulation breakdown. : The Siemens supplies range AC : (page 21) studied to meet all the requirements concerning A : electrical installations consists of three main product families: B : AC type: Residual Current operated Circuit-Breakers (RCCBs) for AC fault currents; The Residual Current operated Circuit-Breakers (RCCBs) of the 5SM series produced according to the new standard IEC are modular switches which are snap mounted on symmetric hat profiles in accordance with EN Their sizes comply to the standard DIN 43880: a module of 18 mm (1 pole), front window height equal to 45 mm. The 5SM RCCB detect the fault A type : Residual Current operated Circuit-Breakers (RCCBs) for AC and pulsating DC fault currents; B type : Residual Current operated Circuit-Breakers (RCCBs) for AC, pulsating DC and smooth DC fault currents. The range 5SM The 5SM Residual Current operated Circuit-Breakers (RCCBs): an optimum solution 2/20

80 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) The range n (A) n (ma) Type Rated current n (A) Rated fault Currents Remarks Page AC 230/400 V n (ma) (RCCBs)-5SM Modular Residual Current operated Circuit-Breakers (RCCBs) - 5SM AC , 30, 100, 2/22 300, 500, for AC fault currents A /24 for AC, pulsating DC fault currents (RCCBs) - 5SM/5SZ Modular Residual Current operated Circuit-Breakers (RCCBs) - 5SM/5SZ for special applications 2 A , /26 selective selective type B , 300 2/28 for AC, pulsating and smooth DC fault currents A ,100 ( ) 2/29 Timed opening (short time delay), for enhanced protection against unwanted tripping actions. 2/21

81 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Product data sheet 5SM AC 5SM Series TYPE AC (RCCBs) Application fields: domestic, public, industrial I n :10 ma, 30 ma, 100mA, 300 ma, 500 ma I n : 16, 25, 40, 63, 80A U n : AC 125 V V (2P), AC 230 V V (4P) I m : 800A, 10kA - - IEC : : 6 A(AC 230 V) 1 A(DC 220 V) IEC , EN AC type Residual Current operated Circuit-Breakers (RCCBs) for AC currents Rated residual fault currents n : 10 ma, 30 ma, 100 ma, 300 ma, 500 ma Rated currents n :16, 25, 40, 63, 80A Rated voltage U n : AC 125 V V (2P), AC 230 V V (4P) Rated differential breaking capacity m : 800A, short circuit capacity together with appropriate back up fuse: 10kA Resistance to surge current pulses - lightning or switchgear manipulation - according to IEC Attachable auxiliary contacts: permissible load: 6 A (AC 230 V) or 1 A (DC 220 V) Compliance with the standards: IEC , EN Marking 5SM AC (RCCBs) TT, TN IT 30mA Approvals and main certifications IMQ The 5SM Residual Current operated Circuit-Breakers (RCCBs) of the AC 1 type adapted to domestic, public, and industrial fields are used in the ) 2P 63 A, 80 A distribution systems TT, TN and IT, in accordance with the rules and Certification in progress for 2P 63 A, 80 A regulations in force. The RCCB characterized by a rated residual differential current of 30 ma also assure an additional protection in case of direct contacts. Versions /All 1) 5SM (RCCBs) 30 For more details on the technical data of 5SM RCCBs, please consult the section: Technical data of the Residual Current operated Circuit-Breakers (RCCBs) on page 30. (RCCBs) 31 Dimension data of the Residual Current operated Circuit-Breaker (RCCBs) see page 31. 2/22

82 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Selection and ordering data 5SM AC 5SM Series TYPE AC 5SM (U n)=ac V (2P) AC V (3P+N) : AC 240 V (2P) AC 415 V (4P) IP 2X - IP XXB EN ( ): 1 5SM Series U n = AC 125 to 230 V (2P) AC 230 to 400 V (3P+N) Usable with line voltages up to: AC 240 V (2P) AC 415 V (4P) Type : AC Attachable auxiliary contacts Protected terminals IP 2X - IP XXB Snap on mounted to symmetric hat profiles rails according to EN Packaging (number of parts): 1 Version Rated fault Rated Order No. current current n (A) 2 (2 ) 1 ) 2 ) 2 pole (2 MW) 1 ) 2 ) 4 (4 ) 4 pole (4 MW) n 10 ma 16 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 125 5SZ ma 40 5SM ma 63 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 125 5SZ Auxiliary contacts (1/2 )(1/2 MW) Locking device sealable and lockable 500 ma 25 5SM ma 40 5SM ma 63 5SM ma 125 5SZ A, AC 230V 1NO+1NC 5SW A, DC 220V 2NO 5SW NC 5SW SW ) 1 = =18 mm 1 MW = one Module Width unit = 18 mm 2 ) 63A, 80A= A, 80 A = 2.5 MW 2/23

83 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Product data sheet 5SM A 5SM Series TYPE A Application fields: domestic, public, industrial (RCCBs) I n: 10 ma, 30 ma, 100mA, 300 ma, 500 ma I n: 16, 25,40, 63, 80A U n: AC 125 V V (2P), AC 230 V V (4P) I m: 800A, 10kA - - IEC , 8/20 µs 1000A (VDE 0432 T2) : : 6 A(AC 230 V) 1 A(DC 220 V) : IEC , EN , VDE 0664 T1, CEI A type Residual Current operated Circuit-Breakers (RCCBs) for AC and DC fault currents, guaranteeing the proper operation of installations, particularly for electronic devices Rated residual fault currents n: 10 ma, 30 ma, 100mA, 300 ma, 500 ma Rated currents n : 16, 25, 40, 63, 80A Rated voltage U n : AC 125 V V (2P), AC 230 V V (4P) Rated differential breaking capacity m: 800A, short circuit capacity together with appropriate back up fuse: 10kA Resistance to surge current pulses - lightning or switchgear manipulation - according to IEC , 8/20µs current pulse > 1000 A (VDE 0432 T2). Attachable auxiliary contacts: Permissible load: 6 A (AC 230 V) or 1 A (DC 220 V) 5SM A (RCCBs) Compliance with the standards: IEC , EN , VDE 0664 TT, TN IT T1, CEI IEC IEC A (RCCBs) Marking The 5SM Residual Current operated Circuit-Breakers (RCCBs) of the A type adapted to domestic, public, and industrial fields are used in the distribution systems TT, TN, and IT, in accordance with the rules and regulations in force. To protect in case of indirect contacts by an automatic shutdown of the power supply, the standard IEC 64-8 art and IEC art recommend using A type Residual Current operated Circuit-Breakers (RCCBs) when class1 users integrating electronic circuits are present. Approvals and main certifications IMQ VDF 1 ) 2P 63 A, 80 A Certification in progress for 2P 63 A, 80 A Versions /AII 1) /All 1) IEC 64-8 A (RCCBs) Class 1 user equipment requiring the utilization of A type Residual Current operated Circuit-Breakers (RCCBs) in accordance with the standard IEC 64-8 Users microcomputers electronic typewriters cash registers medical equipment electronic scales disk units industrial calculators video games juke boxes telephone exchanges programmable controllers inverters control circuits for robotic equipment parabolic antenna rotors etc. 5SM (RCCBs) 30 For more details on the technical data of 5SM RCCBs, please consult the section: Technical data of the Residual Current operated Circuit-Breakers (RCCBs) on page 30. (RCCBs) 31 Dimension data of the Residual Current operated Circuit-Breaker (RCCBs) see page 31. 2/24

84 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Selection and ordering data 5SM A 5SM Series TYPE A 5SM (U n)=ac V (2P) AC V (3P+N) : AC 240 V (2P) AC 415 V (4P) A IP 2X - IP XXB EN ( ): 1 5SM Series U n = AC 125 to 230 V (2P) AC 230 to 400 V (3P+N) Usable with line voltages up to: AC 240 V (2P) AC 415 V (4P) Type : A Attachable auxiliary contacts Protected terminals IP 2X - IP XXB Snap on mounted to symmetric hat profiles rails according to EN Packaging (number of parts): 1 Version Rated fault Rated Order No. current current n (A) 2 (2 ) 1 ) 2 ) 2 pole (2 MW) 1 ) 2 ) 4 (4 ) 4 pole (4 MW) Auxiliary contacts (1/2 )(1/2 MW) n Locking device sealable and lockable 10 ma 16 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 80 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 40 5SM ma 63 5SM ma 25 5SM ma 40 5SM ma 63 5SM ma 25 5SM ma 40 5SM ma 63 5SM A, AC 230V 1NO+1NC 5SW A, DC 220V 2NO 5SW NC 5SW SW ) 1 = =18 mm 1 MW = one Module Width unit = 18 mm 2 ) 63A, 80A= A, 80 A = 2.5 MW 2/25

85 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Product data sheet 5SM A S (RCCBs) 5SM 5SM Series TYPE A SELECTIVE (RCCBs) 5SU (RCBOs) Application fields: domestic, public, industrial I n: 100mA, 300 ma, 1 A U n: AC 125 V V (2 ), AC 230 V V (4 ) I n: 40, 63 A I m: 800 A 10kA - - IEC , 8/20µs 5000A (VDE 0432 T2) : 6 A (AC 230 V) 1 A (DC 220 V) IEC , EN , VDE 0664 T1, CEI Residual Current operated Circuit-Breakers (RCCBs) assuring a tripping selectivity when associated with other 5SM RCCBs and 5SU Residual Current Circuit-Breakers with integral Overcurrent protection (RCBOs) Rated fault currents n : 300 ma, 1 A Rated voltage U n : AC 125 V V (2P), AC 230 V V (4P) Rated current n : 40, 63 A Rated differential breaking capacity m: 800 A, short circuit capacity together with appropriate back up fuse: 10kA High resistance to surge current pulses - lightning or switchgear manipulation - according to IEC , > 5000 A (VDE 0432 T2, 8/ 5SM S ( ) 20µs current pulse) TN TT ( ) S Attachable auxiliary contacts: 30mA Permissible load: 6 A (AC 230 V) or 1 A (DC 220 V) (RCCB RCBO) Compliance with the standards: IEC , EN , VDE 0664T1, CEI VF >1A >0.25S A Marking The 5SM RCCB of the S type (Selective) are used in all the fields (domestic,public, and industrial) in the distribution systems TN and TT, in accordance with the regulation in force. The RCCB of the S type, together with standard RCCB and RCBO circuit-breakers connected downstream and having a residual fault current n 30 ma, offer a vertical two-tier tripping selectivity. To benefit from selectivity, including RCCBs connected upstream, it is suitable to use 3VF circuit-having a residual fault current n > 1 A, and a delay > 0.25 s. The 5SM selective RCCB are A types; as a result, they also open when fault currents of the pulsating DC current type are present. Approvals and main certifications VDE Example of a two-tier selectivity circuit Example of a three-tier selectivity circuit 5SM (RCCBs) 30 For more details on the technical data of 5SM RCCBs, please consult the section: Technical data of the Residual Current operated Circuit-Breakers (RCCBs) on page 30. (RCCBs) 31 Dimension data of the Residual Current operated Circuit-Breaker (RCCBs) see page 31. 2/26

86 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Selection and ordering data 5SM A 5SM Series TYPE A SELECTIVE 5SM (U n)=ac V (2P) AC V (3P+N) : AC 240 V (2P) AC 415 V (4P) 50/60 Hz A IP 2X - IP XXB EN ( ): 1 S Version Rated fault Rated Order No. current current n (A) n (A) 2 (2.5 ) 1 ) 2 pole (2.5 MW) 1 ) 4 (4 ) 4 pole (4 MW) 300 ma 63 5SM ma 40 5SM ma 40 5SM ma 63 5SM A 63 5SM SM Series U n = AC 125 to 230 V (2P) AC 230 to 400 V (3P+N) Usable with line voltages up to: AC 240 V (2P) AC 415 V (4P) Rated frequency: 50/60 Hz Type : A Attachable auxiliary contacts Protected terminals IP 2X - IP XXB Snap on mounted to symmetric hat profiles rails according to EN Packaging (number of parts): 1 Auxiliary contacts (1/2 )(1/2 MW) Locking device sealable and lockable 6A, AC 230V 1NO+1NC 5SW A, DC 220V 2NO 5SW NC 5SW SW ) 1 = =18 mm 1 MW = one Module Width unit = 18 mm 2/27

87 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Product data sheet 5SZ B 5SZ Series TYPE B 5SZ Series TYPE B for AC, pulsating, and smooth DC fault currents Application fields: domestic, public, industrial (RCCBs) ( n 30 ma) I n: 30 ma, 300 ma U n: AC 230 V V I n: 25, 40, 63A I m: 800 A 10kA - - IEC , 8/20µs, 1000A (VDE 0432 T2) : IEC VDE 5342 Modular Residual Current operated Circuit-Breakers (RCCBs) presenting special construction characteristics for assuring protection in case of direct or indirect contacts (version n 30 ma), including the presence of DC fault currents Rated residual fault currents n : 30 ma, 300 ma Rated voltage U n : AC 230 V V Rated current n : 25, 40, 63 A Rated differential breaking capacity m: 800 A, short circuit capacity together with appropriate back up fuse: 10kA For AC, pulsating and smooth DC fault currents High resistance to surge current pulses - lightning or switchgear manipulation - according to IEC , >1000A (VDE 0432 T2, 8/ 20µs current pulse) Compliance with the standards: IEC 60755, record number of VDE 5342 Marking Selection and 0rdering data 5SZ B 5SZ Series TYPE B Version Rated fault Rated Order No. 5SZ Series TYPE B for AC, current current pulsating, and smooth DC fault n n (A) currents 4 5SZ B (8 ) 1) 5SZ Series Type B for AC, pulsating and smooth DC fault currents 5SZ 4 pole n)=ac V 30 ma 25 5SZ KG00 (8 MW) 1) 30 ma 40 5SZ KG00 30 ma 63 5SZ KG ma 25 5SZ KG00 AC 415 V (4 ) 300 ma 40 5SZ KG ma 63 5SZ KG00 EN ) 1 = =18 mm 1 MW = one Modular Width unit = 18 mm IP 2X - IP XXB ( ): 1 Type : B Snap on mounted to symmetric 5SZ Series U n= AC 230 to 400 V hat profiles according to EN For AC, pulsating and smooth, DC fault currents Usable with line voltages up to AC 415 V (4P) Protected terminals IP 2X - IP XXB Packaging (number of parts): 1 5SZ (RCCBs) 30 For more details on the technical data of 5SZ RCCBs, please consult the section: Technical data of the Residual Current operated Circuit-Breakers (RCCBs) on page 30. (RCCBs) 31 Dimension data of the Residual Current operated Circuit-Breaker (RCCBs) see page 31. 2/28

88 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Product data sheet 5SM A (RCCBs) 30 ma 5SM Series TYPE A with short time delay I n: 30 ma, 100 ma Application fields: domestic, public, industrial I n: 25, 40, 63A U n: AC 230 V V I m: 800 A 10kA 5SM : 10ms - - IEC , 8/20µs, 3000A (VDE 0432 T2) : IEC , EN , VDE 0664 T1, IEC Modular Residual Current operated Circuit-Breakers (RCCBs) with n 30 ma offering high resistance to transients overvoltage due to lightning or switchgear manipulations Rated residual fault currents n : 30 ma, 100 ma Rated current n : 25, 40,63 A Rated voltage U n : AC 230 V V Rated differential breaking capacity m: 800 A, short circuit capacity together with appropriate back up fuse: 10kA ( ) Delay as compared to standard 5SM RCCB: 10 ms 30 ma High resistance to surge current pulses - lightning or switchgear, IEC manipulation (IEC ), > 3000 A (VDE 0432 T2, 8/20µs current 30 ma pulse) Compliance with the standards: IEC , EN , VDE 0664 This delaying RCCB (delayed breaking) extremely with stands surge T1, IEC current pulses resulting from lightning or switchgear manipulations, and still maintains protective characteristics in case of direct contacts on a Marking RCCB n 30 ma: well within limits of permissible opening delays according to IEC for a 30 ma fault current. Approvals and main certifications VDE 2 Selection and ordering data 5SM A 5SM Series TYPE A with short time delay (U n )=AC V : 10 ms EN IP 2X-IP XXB ( ): 1 U n = AC 230 to 400 V Delay as compared to a standard 5SM RCCB: 10 ms Type A Attachable auxiliary contacts Snap on mountable to symmetric hat profiles according to EN Protected terminals IP 2X - IP XXB Packaging (number of parts): 1 Version Rated fault Rated Order No. current current n (A) n (A) 4 (4 ) 1) Auxiliary contacts (1/2 )(1/2 MW) 1 ) 1 = =18 mm 1 MW = one Module Width unit = 18 mm 5SM A 5SM Series Type A, with short time delay 4 pole 30 ma 25 5SM KK01 (4 MW) 1) 30 ma 40 5SM KK ma 63 5SM KK01 Locking device sealable and lockable 1NO+1NC 5SW A, AC 230V 2NO 5SW A, DC 220V 2NC 5SW SW SM (RCCBs) 30 For more details on the technical data of 5SM RCCBs, please consult the section: Technical data of the Residual Current operated Circuit-Breakers (RCCBs) on page 30. (RCCBs) 31 Dimension data of the Residual Current operated Circuit-Breaker (RCCBs) see page 31. 2/29

89 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) General technical data 5SM 5SM 5SM 5SZ 5SM Series, Selective time delay for AC, pulsating and smooth DC with short fault currents 1) /Rated voltages U n (V) AC V (2P) AC V (4P) AC V /Rated currents I n (A) 16, 25, 40, 63, 80 A 16, 25, 40, 63, 80 A 40, 63 A 25, 40, 63 A 25, 40, 63 A I n Rated residual fault currents n I 10 ma, 30 ma, 100mA, 300 ma, 500 ma 100mA, 300 ma, 1 A 30 ma, 300 ma 30 ma, 100 ma /Type of residual current AC A A B A /Rated frequency 50 Hz I m 800A Rated differential breaking capacity I m (V) 100 Minimum line voltage for test function operation 8/20µs (VDE 0432 T2) (A B ) Resistance to unwanted trippings by lightning or switchgear manipulations, 8/20µs current pulse (VDE 0432 T2) (Types A and B) IEC >1000A >5000A >1000A >3000A -25ºC +45ºC 95% 2) Operating temperature range -25ºC to +45ºC, max. relative humidity 95% 2) /Storage temperature range /Mounting position /Supply connection /Terminals /Enclosure -40ºC ~ +70ºC /as desired /top or bottom IP 2X -IPXXB, 25 mm 2 (5SM) protected IP 2X - IPXXB, for conductors having max. cross-section of 25 mm 2 (5SM) DIN 7708 /in insulating material according to DIN 7708 Number of electrical manipulation cycles with U n and n >10000 IEC : IEC Fire resistance according to IEC : incandescent filament test according to IEC /Mechanical shock resistance IEC /according to IEC IEC , EN , VDE 0664, CEI Compliance with the standards IMQ / VDE Approvals and main certifications IMQ and/or VDE 1 ) AC 240 V (2P), AC 415 V (4P)/Usable in network with line voltages of AC 240 V (2P), AC 415 V (4P) 2 ) AC -5ºC/ -5ºC for AC type breakers Utilization of four-pole Residual Current operated Circuit-Breakers IEC (RCCBs) in three-conductor, three-phase networks T According to the standard IEC , the user must be informed of the necessity to periodically actuate the device by pressing the test 1, 3, pushbutton designated by the letter T to verify that the device is 5 2, 4, 6 3 operating correctly during its life-time. See mounting instructions and indications on the front. When four-pole Residual Current operated Circuit-Breakers (RCCBs) are used in three-conductor, three-phase networks, the connection must be made to the terminals 1, 3, 5, and 2, 4, 6. To make sure that the test function can work properly, terminal 3 has to be shunted to the neutral. 2/30

90 (RCCBs) Residual Current operated Circuit-Breakers (RCCBs) Dimension drawings 5SM/5SZ (RCCBs) 5SM/5SZ Residual Current operated Circuit-Breakers (RCCBs) A 2 poles 16 to 40 A 5SM 4, 5SM 4 poles, 5SM 2 5SZ (RCCBs) 5SZ Residual Current operated Circuit-Breakers (RCCBs) 125A A 2 poles 63 and 80 A 5SM *) 5SW3003: 70 mm with locking device 5SW3003 : 70 mm 5SZ SZ SZ SZ (RCCBs) 5SZ Residual Current operated Circuit-Breakers (RCCBs) 5SZ KG00 5SZ KG00 5SZ KG00 5SZ KG00 5SZ KG00 5SZ KG00 5SM (RCCBs) 5SM Modular Residual Current operated Circuit-Breakers (RCCBs) with auxiliary contacts A (2.5 ) 2 poles 16 to 40 A (2.5 MWs) A (3 ) 2 poles 63 to 80 A (3 MWs) 4 (4.5 ) 4 poles (4.5 MWs) 2/31

91 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) The range RCBO 5SU Protection in case of indirect IEC IEC contacts DIN ma 5SU (RCBO) A AC 33 IEC SU (RCBO) ( I n =30mA) Protection additionally in case of direct contacts (version n =30mA) The RCBO 5SU series are equipped with overcurrent triggers integrated and manufactured according to the most recent national and international regulations: standards IEC and IEC Their sizes are in compliance with the regulations of the standard DIN These circuit-breakers are used to protect electrical installations against overcurrents and assure the protection of live in case of indirect contacts. The circuit-breakers characterized by a residual fault current rated less than or equal to 30 ma offer an additional protection in case of direct contacts. In addition, these devices assure protection against the risks of fire in the event of an earthing fault if such faults persist without tripping the protection device against overcurrents. The 5SU RCBO circuit-breakers are available in types A and AC. The product range is presented in condensed form in the table on page 33. Protection against overloads Protection against short-circuits Protection against fire risks 5SU Advantages of the 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection ( ) I 2 t: 3 Integrated protection against overcurrents and earthing faults (protection in case of indirect contacts, direct contacts, and fire risks) Excellent current and 2 t energy limiting grade: limitation class 3 Better protection of conductors against short-circuits High selectivity Toggle handle protected against unwanted manipulations Excellent resistance to surye current pulses - lightning or switchgear manipulation 2/32

92 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) The range 1) series No. of Rated short-circuit Capacity 1) Type 2) Tripping Application Fields Page poles Characteristic 1P+N 2 2 module /units /domestic /public 2/34 2 1P+N 2 2 module /units /public /industrial 2/36 3P+N 2/36 2P 2/38 /public /industrial 3P+N 2/38 2P /public /industrial 2/40 1 ) A, IEC 2 ) AC IEC A 43 AC type for AC fault current. The value indicated in black in the rectangle corresponds to the rated A type for AC fault currents and pulsating DC fault currents. short-circuit capacity in A according to IEC ; the value indicated 3 ) 3P+N, IEC in red returns to the standard IEC Short-circuit capacity according to IEC for the version 3P+N. The max. effective short-circuit capacity values for the various currents are specified in the table on page 43. 2/33

93 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Product data sheet 5SU 5SU Series Application sectors: domestic, public : 30 ma, 300 ma : 6 to 40 A AC 230 V (1P+N) : C IEC I cn : 4500 A I 2 t: 3 : 36 mm : AC A - - IEC /20µs 250A (VDE 0432 T2) : IEC , EN , IEC Single-block phase neutral RCBO circuit-breakers in two Module Width units; maximum protection to users and electrical installations in half-sized enclosures Rated residual fault currents: 30 ma, 300 ma Rated currents: 6 to 40 A AC 230 V (1P+N) Tripping characteristic: C Rated short-circuit capacity cn according to IEC : 4500 A Excellent current and energy limiting 2 t: limitation class 3 Width: 36 mm Types: AC A 5SU.747 (RCBO) Resistance to surge current pulses - lightning or switchgear manipulation - IEC , 8/20µs and 250 A current pulse (VDE 0432 T2) Compliance with the standards: IEC , EN , IEC 23-18, ( ) Marking 30 ma C 5SU.747 : Approvals and main certifications (AC ) (A IMQ 6 to 40 A A 1 ( 24 ) 5SU The 5SU.74 Residual Current Operated Circuit-Breaker with integral Overcurrent Protection (RCBO) can be used in the domestic and public field for optimum protection of life against the risks of indirect contacts and electrical installations against short-circuits or overload. The Residual Current Operated Circuit-Breakers with integral Overcurrent Protection combine in fact a protection against earthing faults (differential protection) and a protection against overcurrents detected in the installations (magnetothermic protection). Versions using a rated residual fault current of 30 ma also assure an additional protection in case of direct contacts. The 5SU.74 Residual Current Operated Circuit-Breakers with integral Overcurrent Protection are available in two versions: one only sensitive to AC sinusoidal fault currents (AC type) and the other also sensitive to pulsating DC fault currents (A type). The utilization of A type RCBO circuit-breakers is recommended in all fields where Class 1 devices are involved, such as: medical equipment, control systems, video games for cafes and arcades, computers, office automation and electronic systems in general (see page 24). n (A) U n (V) SU 5SU(RCBOs) 44 For more details on the technical data of 5SU RCBO circuit-breakers, please consult the section: Technical data of the single-block Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) on page 44. (RCBOs) 45 Dimension data of the Residual Current operated Circuit-Breakers with integral overcurrent Protection (RCBOs) see page 45. ~ cn 1P+N 1P+N 125 to 125 to /34

94 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Selection and ordering data 5SU SU Series 3 C Tripping characteristic C 5SU I cn : 4500 A, IEC U n = AC V : AC, A IP 2X - IP XXB EN ( ): 1 5SU Series Rated shout-circuit capacity cn : 4500 A according to IEC U n = AC 125 to 230 V Types: AC, A Protected terminals IP 2X - IP XXB Snap on mountable to symmetric hat profiles according to EN Packaging (number of parts): 1 Order No. Version Rated fault Rated C/ Characteristic C current current n (A) n (A) AC /Type AC A /Type A 1 +N (2 ) 1 ) 1 pole+n (2 MW) 1 ) 1 +N (2 ) 1 ) 1 pole+n (2 MW) 1 ) 30 ma 6 5SU KW06 5SU KV06 30 ma 10 5SU KW10 5SU KV10 30 ma 16 5SU KW16 5SU KV16 30 ma 20 5SU KW20 5SU KV20 30 ma 25 5SU KW25 5SU KV25 30 ma 32 5SU KW32 5SU KV32 30 ma 40 5SU KW ma 6 5SU KW06 5SU KV ma 10 5SU KW10 5SU KV ma 16 5SU KW16 5SU KV ma 20 5SU KW20 5SU KV ma 25 5SU KW25 5SU KV ma 32 5SU KW32 5SU KV ma 40 5SU KW ) 1 = =18 mm 1 MW = 1 Module Width unit = 18 mm 2/35

95 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Product data sheet 5SU ka IEC ) 5SU Series 3 (RCBOs) Application fields: public, industrial : 30 ma, 300 ma : 6 to 40 A AC V (1P+N) 6 32 A AC V (3P+N) : B, C IEC I cn : 6000 A I 2 t: 3 : 36 mm (1P+N) : AC A - - IEC /20µs 250A(1P+N) >1000A (3P+N) (VDE 0432 T2) : IEC , EN , IEC RCBO circuit-breakers with high breaking capacity; phaseneutral version in two Module Width units; four-pole version with three 5SU.76. 5SU.66. (RCBO) protected poles; excellent current and energy limiting., Rated residual fault currents: 30 ma, 300 ma Rated currents: 6 to 40 A AC 125 to 230 V (1P+N) 6 to 32 A, AC 230 to 400 V (3P+N) ( ) Tripping characteristics: B,C 30 ma Rated breaking capacity cn according to IEC : 6000 A Excellent current and energy limiting 2 t: limination class 3 5SU.74 : Width: 36 mm (1P+N) (AC ) (A Types: AC A A 1 High resistance to surge current pulses - lightning or switchgear manipulation - (IEC ), (VDE 0432 T2), 8/20µs current pulse, ( 24 ) 250 A (1P+N), > 1000 A (3P+N) Compliance with the standards: IEC , EN , IEC The 5SU.76. and 5SU.66. Residual Current Operated Circuit-Breaker Marking with integral Overcurrent Protection (RCBO) can be used in the public and industrial fields for optimum protection of life against the risks of C C indirect contacts and of electrical installations against short-circuits or Approvals and main overload. certifications The Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBO) combine in fact a protection against earthing faults IMQ 6 to 40 A (1P+N) 6 to 25 (3P+N) (differential protection) and a protection against overcurrents detected in the installations (magnetothermic protection). Versions which are characterized by a rated residual fault current of 30 5SU ma also assure an additional protection against direct contacts. 1P+N 1P+N 3P+N 3P+N The 5SU Residual Current operated Circuit-Breakers with integral U e (V) 125 to 125 to 230 to 230 to ~ Overcurrent Protection are available in two versions: one only sensitive to AC sinusoidal fault currents (AC type) and the other also sensitive to pulsating DC fault currents (A type). n (A) cn The utilization of A type RCBO circuit-breakers is recommended in all fields where Class 1 devices are involved, such as: medical equipment, B 6 40 control systems, video games for cafes and arcades, computers, office automation and electronic systems in general (see page 24). 5SU 5SU(RCBOs) 44 For more details on the technical data of 5SU RCBOs circuit-breakers, please consult the section: Technical data of the single-block Residual Current operated Circuit- Breakers with integral Overcurrent Protection (RCBOs) on page 44. (RCBOs) 45 Dimension data of the Residual Current operated Circuit-Breakers with integral over current Protection (RCBOs) see page ) 3P+N /Version 3P+N C 6 40 C 6 32 Effective short-circuit capacity (max. values) 3 +N 400 V 3 poles+n AC 400 V IEC IEC cs (ka) cs (ka) cu (ka) /36

96 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Selection and ordering data 5SU ka IEC ) 5SU Series 3 C Order No. Tripping characteristics C Version C B Rated fault Rated Characteristic C characteristic B 5SU current current cn: 6000 A, n (A) n (A) AC /Type AC A /Type A AC /Type AC IEC N 30 ma 6 5SU KW06 5SU KV06 5SU KW06 U n = AC V(1 +N); (2 ) 1 ) 30 ma 10 5SU KW10 5SU KV10 5SU KW10 AC V(3 +N) 1 pole+n 30 ma 13 5SU KW13 5SU KV13 5SU KW13 (2 MW) 1 ) 30 ma 16 5SU KW16 5SU KV16 5SU KW16 30 ma 20 5SU KW20 5SU KV20 5SU KW20 30 ma 25 5SU KW25 5SU KV25 5SU KW25 30 ma 32 5SU KW32 5SU KV32 5SU KW32 30 ma 40 5SU KW40 5SU KW40 + IP 2X - IP XXB EN N (2 ) ( ): 1 1 pole+n (2 MW) 5SU Series Rated short-circuit capacity cn: 6000 A according to IEC U n = AC 125 to 230 V(1P+N); AC 230 to 400 V (3P+N) Types: AC, A Version phase plus neutral in two Modular Width units Protected terminals IP 2X - IP XXB Snap on mountable to symmetric hat profiles according to EN Packaging (number of parts): ma 6 5SU KW06 5SU KV ma 10 5SU KW10 5SU KV ma 16 5SU KW16 5SU KV ma 20 5SU KW20 5SU KV ma 25 5SU KW25 5SU KV ma 32 5SU KW32 5SU KV ma 40 5SU KW40 3 +N 30 ma 6 5SU BK06 5SU BS06 (6 ) 30 ma 10 5SU BK10 5SU KS10 3 pole+n 30 ma 16 5SU BK16 5SU KS16 (6 MW) 30 ma 20 5SU BK20 5SU KS20 30 ma 25 5SU BK25 5SU KS25 30 ma 32 5SU BK32 5SU KS32 3 +N 300 ma 6 5SU BK06 5SU BS06 (6 ) 300 ma 10 5SU BK10 5SU KS10 3 pole+n 300 ma 16 5SU BK16 5SU KS16 (6 MW) 300 ma 20 5SU BK20 5SU KS ma 25 5SU BK25 5SU KS ma 32 5SU BK32 5SU KS ) 1 = = 18 mm 1 MW = 1 Module Width unit = 18 mm 2 ) 3P+N Version 3P+N 2/37

97 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Product data sheet 5SU kA IEC ) 5SU Series 3 Application fields: public, industrial : 30 ma, 300 ma : 6 to 32 A AC V(2 ) AC V(3 +N) : C IEC IEC , I cn : A : I 2 t: 3 : AC A - - IEC , A 8/20µs >1000A (VDE 0432 T2) : IEC , EN , IEC Residual Current operated Circuit-Breakers with integral Overcurrent Protection with high breaking capacity, guaranteeing max. protection and selectivity, in particular, when large shortcircuit currents are present 5SU.26 5SU.67 (RCBO) Rated residual fault currents: 30 ma, 300 ma Rated currents: 6 to 32 A AC 125 to 230 V (2P) AC 230 to 400 V (3P+N) Tripping characteristics: C ( ) Rated short-circuit capacity cn according to IEC 60898, IEC : A 30 ma Excellent current and energy limiting 2 t: limination class 3 Types: AC A 5SU Resistance to surge current pulses - lightning or switchgear (AC ) (A manipulation - (IEC ); > 1000A (VDE 0432 T2, 8/20µs current A pulse for A Type) Compliance with the standards: IEC ,EN , IEC AC A Marking 8/20µs C The 5SU.26 and 5SU.67 Residual Current operated Circuit-Breaker with integral Overcurrent Protection (RCBO) can be used in the public and industrial fields for optimum protection of live against the risks of indirect contacts and of electrical installations against short-circuits or overloads. The Residual Current operated Circuit-Breakers with integral Overcurrent Protection combine in fact a protection against earthing faults (differential protection) and a protection against overcurrents detected in the installations (magnetothermic protection). Versions which are characterized by a rated residual fault current of 30 ma also assure an additional protection against direct contacts. The 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection are available in two versions: one only sensitive to AC sinusoidal fault currents (AC type) and the other also sensitive to pulsating DC fault currents (A type). The utilization of A type RCBO circuit-breakers is recommended in all sectors where Class 1 devices are involved, such as: medical equipment, control systems, video games for cafes and arcades, computers, office automation and electronic systems in general. The version for AC and pulsating DC fault currents (A type) is resistant to surge current pulses ( 8/20µs pulse). 2/38 n (A) Approvals and main certifications IMQ to 25A Effective short-circuit capacity (max. values) V 3 +N 400 V 2 poles AC 230 V 3 poles+n AC 400 V IEC IEC IEC IEC cs (ka) cs (ka) cu (ka) cs (ka) cu (ka) SU 5SU(RCBOs) 44 For more details on the technical data of 5SU RCBO circuit-breakers, please consult the section: Technical data of the single-block Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) on page 44. (RCBOs) 45 Dimension data of the Residual Current operated Circuit-Breakers with integral over current Protection (RCBOs) see page 45. 1) 3P+N / Version 3P+N U e (V) 5SU ~ cn 2P 2P 3P+N 3P+N 125 to 125 to 230 to 230 to

98 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Selection and ordering data 5SU ka IEC ) 5SU Series 3 C /Order No. Tripping characteristic C Version Rated fault Rated C current current Characteristic C 5SU I cn : A, n (A) n (A) AC /Type AC A /Type A IEC (4 ) 1 ) U n = AC V (2 ) AC V(3 +N) : AC, A IP 2X - IP XXB EN mm ( ): 1 5SU Series Rated short-circuit capacity cn : A according to IEC U n = AC 125 to 230 V (2P) AC 230 to 400 V (3P+N) Types: AC, A Protected terminals IP 2X - IP XXB Snap on mountable to symmetric hat profiles according to EN Packaging (number of parts): 1 2 pole (4 MW) 1 ) 2 (4 ) 2 pole (4 MW) 3 +N (6 ) 3 pole+n (6 MW) 3 +N (6 ) 3 pole+n (6 MW) 30 ma 6 5SU BK06 5SU BS06 30 ma 10 5SU BK10 5SU BS10 30 ma 16 5SU BK16 5SU BS16 30 ma 20 5SU BK20 5SU BS20 30 ma 25 5SU BK25 5SU BS25 30 ma 32 5SU BK32 5SU BS ma 6 5SU BK06 5SU BS ma 10 5SU BK10 5SU BS ma 16 5SU BK16 5SU BS ma 20 5SU BK20 5SU BS ma 25 5SU BK25 5SU BS ma 32 5SU BK32 5SU BS32 30 ma 6 5SU BK06 5SU BS06 30 ma 10 5SU BK10 5SU BS10 30 ma 16 5SU BK16 5SU BS16 30 ma 20 5SU BK20 5SU BS20 30 ma 25 5SU BK25 5SU BS25 30 ma 32 5SU BK32 5SU BS ma 6 5SU BK06 5SU BS ma 10 5SU BK10 5SU BS ma 16 5SU BK16 5SU BS ma 20 5SU BK20 5SU BS ma 25 5SU BK25 5SU BS ma 32 5SU BK32 5SU BS ) 1 = =18 mm 1 MW = 1 Module Width unit = 18 mm 2 ) 3P+N / Version 3P+N 2/39

99 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Product data sheet 5SU ka IEC SU Series Application fields: public, industrial : 30 ma, 300 ma : 6 to 32 A AC V(2 ) : C IEC , I cn : A : AC A - - IEC A 8/20µs >1000A (VDE 0432 T2) : IEC , EN , IEC Residual Current operated Circuit-Breakers with integral Overcurrent Protection with high short-circuit capacity, guaranteeing max. protection and selectivity, including when large short-circuit currents are present Rated residual fault currents: 30 ma, 300 ma Rated currents: 6 to 32 A AC 125 to 230 V (2P) Tripping characteristic: C Rated short-circuit capacity cn according to IEC : A Types: AC A Resistance to surge current pulses due to lightning or switchgear 5SU.27 (RCBO) manipulation according to IEC ; > 1000A (VDE 0432 T2, 8/20µs current pulse, A Type) Compliance with the standards: IEC , EN , IEC Marking ( ) 30 ma C 5SU : Approvals and main (AC ) (A certifications A IMQ 6 to 25A AC A 5SU 8/20µs 2P 2P The 5SU.27 Residual Current operated Circuit-Breaker with integral Overcurrent Protection (RCBO) can be used in the public and industrial fields for optimum protection of live people against the risks of indirect contacts and of electrical installations against short-circuits or overloads. The Residual Current operated Circuit-Breakers with integral Overcurrent Protection combine in fact a protection against earthing faults (differential protection) and a protection against overcurrents detected in the installations (magnetothermic protection). Versions which are characterized by a rated residual fault current of 30 ma also assure an additional protection against direct contacts. The 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection are available in two versions: one only sensitive to AC sinusoidal fault currents (AC type) and the other also sensitive to pulsating DC fault currents (A type). The utilization of A type RCBO circuit-breakers is recommended in all sectors where Class 1 devices are involved, such as: medical equipment, control systems, video games for cafes and arcades, computers, office automation and electronic systems in general. The version for AC and pulsating DC fault currents (A type) is resistant to surge current pulses (8/20µs pulse) n (A) 6 32 ~ cn 125 to 125 to Effective short-circuit capacity (max. values) V 2 poles AC 230 V IEC IEC cs (ka) cs (ka) cu (ka) SU 5SU(RCBOs) 44 For more details on the technical data of 5SU RCBO circuit-breakers, please consult the section: Technical data of the single-block Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) on page 44. (RCBOs) 45 Dimension data of the Residual Current operated Circuit-Breakers with integral over current Protection (RCBOs) on page 45. U e (V) 2/40

100 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) Selection and ordering data 5SU ka IEC SU Series C Tripping characteristic C 5SU I cn : A, IEC U n = AC V (2 ) : AC, A IP 2X - IP XXB EN ( ): 1 5SU Series Rated breaking capacity cn : A according to IEC U n = AC 125 to 230 V (2P) Types: AC, A Protected terminals IP 2X - IP XXB Snap on mountable to symmetric hat profiles according to EN Packaging (number of parts): 1 /Order No. Version Rated fault Rated C current current Characteristic C n (A) n (A) AC /Type AC A /Type A 2 (4 ) 1 ) 2 pole (4 MW) 1 ) 2 (4 ) 2 pole (4 MW) 30 ma 6 5SU BK06 5SU BS06 30 ma 10 5SU BK10 5SU BS10 30 ma 16 5SU BK16 5SU BS16 30 ma 20 5SU BK20 5SU BS20 30 ma 25 5SU BK25 5SU BS25 30 ma 32 5SU BK32 5SU BS ma 6 5SU BK06 5SU BS ma 10 5SU BK10 5SU BS ma 16 5SU BK16 5SU BS ma 20 5SU BK20 5SU BS ma 25 5SU BK25 5SU BS ma 32 5SU BK32 5SU BS ) 1 = =18 mm 1 MW = 1 Module Width unit = 18 mm 2/41

101 (RCCB modules) Residual Current operated Circuit-Breakers Modules (RCCB modules) Product data sheet 5SM2 RCCB 5SM2 RCCB modules Application fields: public, industrial 5SX6 5SX7 (RCCB) : AC V(2 ), AC V(4 ) I n : 80/100 A I n : 30 ma, 300 ma, 1 A : A, AC, A (AC, A ) IEC B, C D : 3.5 (2 ), 5 (4 ) : IEC G RCCB modules fittable to 5SX6 and 5SX7 circuit-breakers, resulting in RCBOs with a very high breaking capacity. 5SM2 (RCCB) 5SX6 5SX7 Rated voltages: AC 125 to 230 V (2P), AC 230 to 400 V (4P) 100A 30mA, 300mA 1A n : 80/100 A n : 30 ma, 300 ma, 1 A 5SM2 (RCCB) A AC ; Types: A, AC, A selective (AC, A ) Resistance to surge current pulses according to IEC ( ) Combination with MCBs of characteristics B,C or D 5SX6 5SX7 Module Width units: 3.5 MWs (2P), 5 MWs (4P) 5SM2 (RCCB) B, C D 5SX6 Compliance with the standards: IEC Appendix G 5SX7 Marking The 5SX6 and 5SX7 circuit-breakers, together with the 5SM2 RCCB modules, provide RCBO circuit-breakers for rated currents up to 100 A and rated residual fault currents of 30 ma, 300 ma, and 1 A. The 5SM2 RCCB modules are available in the A and AC types; in both cases, it is possible to choose a standard protection or a selective protection. The short-circuit capacity is assured by the circuit-breaker; for more details about the effective short-circuit capacity (max. values), please refer to the product data sheets of the 5SX6 and 5SX7 circuit-breakers. The 5SM2 RCCB modules can be coupled to 5SX6 and 5SX7 circuitbreakers with tripping characteristics B, C or D. Selection and Ordering Data U n = AC V(2 ) AC V(4 ) I n : 30mA, 300mA, 1A : AC, A,, 2 (3.5 ) 1 ) 2 pole (3.5 MW) 1 ) IEC B C : IEC G Rated voltage: AC 125 to 230 V (2P) AC 230 to 400 V (4P) n : 30 ma, 300 ma, 1 A Types: AC, A, A selective Resistance to surge current pulses according to IEC Combination with MCBs of characteristics B or C. Compliance with the standards: IEC Appendix G Order No. Version Rated fault Rated current current n (A) n (A) AC /Type AC A /Type A 4 (5 ) 4 pole (5 MW) 1 ) 1 = =18 mm 1 MW = 1 Module Width unit = 18 mm 30 ma 80/100 5SM SM ma 5SM SM ma selectiv - 5SM ma 80/100 5SM SM ma 5SM SM ma selectiv - 5SM A selectiv - 5SM (RCBOs) 45 Dimension data of the Residual Current operated Circuit-Breakers with integral over current Protection (RCBOs) see page 45. 2/42

102 Maximum effective short-circuit capacity (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) n (A) IEC IEC cs (ka) cu (ka) 3P +N (~400 V) 5SU.66. 5SU.67. 5SU.66. 5SU to Technical data 1P+N, 2P (~230 V) 5SU.747 5SU.76. 5SU.26. 5SU.27. 5SU.26. 5SU to Utilization of four-pole Residual Current operated Circuit-Breakers with integral Overcurrent Protection in three-conductor, three-phase networks 2 When four-pole Residual Current operated Circuit-Breakers with integral 1, 3, 5 2, 4, 6 3 Overcurrent Protection are used in three-conductor, three-phase IEC networks, the connection must be made to the terminals 1, 3, 5 and 2, T 4, 6. To make sure that the test function can work properly, terminal 3 has to be shunted to the same side neutral. According to the standard IEC , the user must be informed of the necessity to periodically actuate the device by pressing the test pushbutton designated by the letter T to verify that the device is operating correctly during its life-time. 2/43

103 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) General technical data Series 5SU.747-0KW 5SU.747-0KV 5SU.76.-0KW 5SU.76.-0KV 5SU.66.-1BK 5SU.66.-1BS 5SU.26.-1BK 5SU.26.-1BS 5SU.27.-1BK 5SU.27.-1BS 5SU.67.-1BK 5SU.67.-1BS Module Width units 2 Module Width units /Rated voltages U n (V) AC 125 to 230 (1P+N, 2P); AC 230 to 400 (3P+N) /Rated currents I n (A) 6, 10, 16, 20, 25, 32, 40 6, 10, 16, 20, 25, 32, 40 6, 10, 16, 20, 25, 32 I n 30 ma, 300 ma Rated fault currents n /Type AC A AC A AC A AC A AC A /Rated frequency 50 Hz I cn, IEC Rated short-circuit breaking capacity cn according to IEC A 6000 A A A I m Rated differential breaking capacity m 500 A 500 A 4500 A ) Limitation class not defined 1) /Tripping characteristics C B, C C 250 A 250 A >1000 A >1000 A >1000 A 8/20µs IEC IEC IEC (VDE 0432 T2) (A ) Resistance to unwanted trippings according to according to according to by lightning or switchgear manipulation, IEC IEC IEC /20 µs current-pulse (VDE 0432 T2) (A type) (V) Minimum line voltage for test function operation (V) ) Reference ambient temperature for the thermal trigger 4) 30ºC -25ºC to +45ºC 95% 2) Operating temperature range -25ºC to +45ºC max. relative humidity 95% 2) /Storage temperature range -20 to +60ºC -20 to +60ºC -40 to +70ºC /Mounting position /Supply connection /as desired /top or bottom IP 2X - IPXXB 10 mm 2 Terminals protected IP 2X - IPXXB for conductors up to 10 mm 2 /Enclosure U n I n Number of electrical or mechanical manipulation cycles under U n and I n /Fire resistance DIN 7708/in insulating material according to DIN /20000 on the average ( )/(10000 minimum) IEC : IEC according to IEC ; incandescent filament test according to IEC IEC Mechanical shock and vibration resistance according to IEC Compliance with the standards IEC , IEC Approvals and main certifications IMQ IMQ IMQ 3) 1 ) IEC cn I =20000A The standard IEC does not cover a limitation class for circuitbreakers with an cn = A. temperature, the rated current values indicated on the front decrease/ For ambient temperatures greater/less than the calibration (reference) 2 ) AC -5ºC, A 1P+N +40ºC increase approximately 5% for each 10ºC variation of ambient -5ºC for AC type circuit-breakers; +40ºC for versions 1P+N temperatare away from reference temperature. In a switchboard when 3 ) 6 25 A one several series of circuit-breakers are juxtapositioned and For all versions from 6 to 25 A simultaneously used under full load, the load on these circuit-breakers 4 ) / ( ) 10ºC may have to be reduced; please consult the manufacturer for / 5% information about such circumstances. 2/44

104 (RCBOs) Residual Current operated Circuit-Breakers with integral Overcurrent Protection (RCBOs) 5SU (1P+N) 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection (1P+N) Dimension drawings 5SU (2P) 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection (2P) 2 5SU (3P+N) 5SU Residual Current operated Circuit-Breakers with integral Overcurrent Protection (3P+N) 5SM2 (4P) 5SM2 Residual Current operated Circuit-Breaker module (4P) 2/45

105 SIMBOX 63 Small Distribution Boards SIMBOX 63 3/0

106 SIMBOX 63 Small Distribution Boards SIMBOX 63 Small Distribution Boards (Consumer Units) SIMBOX 63 SIMBOX63 IEC 439-3, EN , VDE 0603 DIN DIN EN MCBs RCDs DIN 12 ( = 18mm) mm 70mm The SIMBOX 63 Small Distribution Boards are intended for the local distribution of electric power in buildings. Due to their good design and small size, they can be easily mounted close to the respective load centres / main loads. The SIMBOX 63 Small Distribution Boards are available in different sizes and for different mounting-types. They comply with IEC 439-3, EN ,VDE 0603 and DIN SIMBOX 63 They are fitted with 1 up to 4 standard DIN EN mounting rails for accomodation of standard snap-on components such as MCBs, RCDs, Modular Devices etc. N, PE Each DIN mounting rail can take up to 12 MW 1,5-10mm 2 1,5-25 mm 2 (Modular Width unit = 18mm), 2 extra MW can DIN be cut out in 3- and 4-tier boards. The standard boxes are ideal to house all, snap-on components with retrofitting depths from 55mm up to 70mm. If, however, a very neat slim board is required e. g. for surface-mounting there are low profile boards available which can house only 55mm components. Mounting type include flush-mounting in solid walls flush-mounting in hollow walls surface-mounting. The NEW SIMBOX 63 features the following improvements: flexible comb-type flange to provide an effective seal while plastering etc. bigger terminal and cable compartment N, PE-terminals with advanced box-type clamps sized 1,5-10mm 2 and 1,5-25mm 2 more cabling space behind the DIN-rails available rugged design with double-walled plastic boxes and galvanized powder-coated metal parts new mechanical locking grip assure secure closing of door easy recessed mounting of a security lock possible 3 DIN- DIN-rail distance retrofitting depth ( ) ( 70mm) Example of an universal Distribution Board (left:flush mount, right:surface mount) for all retrofitting devices (all heights up to 70mm). Good design for easy mounting of board and devices and good appearance for all heights of mounted devices. plaster-thickness adjustment 3/1

107 SIMBOX 63 Small Distribution Boards SIMBOX 63 SIMBOX 63 SIMBOX 63-Small Distribution Boards for flush mounting in soild walls 70mm For mounting of components depth up to 70mm IEC EN VDE 0603 DIN According to IEC 439-3, EN , VDE 0603 and DIN IP30 Degree of protection IP30 2, ( ) Protection class 2, isolation protection (with plastic wall 1 ( ) box) 125mm mm Protection class 1 (with metal wall box) DIN EN50022 Mounting rail centres125mm, mounting rail 35 x 7.5mm N/PE according to DIN EN50022 With new comb-type flange and new advanced N/PEterminals : RAL 9010 Colour: RAL 9010 pure white Can be supplied in separate components (18mm) Type External Recess MW Order No. weight Dimensions Dimensions (18mm) H W H W D kg Standard Distribution Boards, flush mounting for solid walls - completely assembled 1-1-tier GB tier GB tier ) 8GB tier ) 8GB Standard Distribution Boards, flush mounting for solid walls - ( ) as separate components for later assembly (Kit-form) Plastic wall box N/PE- including N/PE-terminals, comb-type flange, cardboard cover plate 1-1-tier GB tier GB tier GB tier GB Metal wall box N/PE- 28/40mm /including N/PE-terminals, 28/40mm knock-out hole GB CC 2) 8GB CC 3) GB CC 2) 8GB CC 3) Component carrier assembly including mounting rails, cover, door with frame 1-1-tier GB5 6552CA tier GB5 6562CA tier ) 8GB5 6572CA tier ) 8GB5 6582CA Low-profile Distribution Boards, flush mounting 55mm/for mounting of components with retrofitting depth up to 55 mm available upon request 3/9 For dimension drawings, see page 3/9. 1) 3 4, 13 For 3-and 4-tier boards the upper and lower row can be extended to 13MW by cutting out pre-moulded sections of the cover 2) Color-galvanized wall box 3) Galvanized wall box 3/2

108 SIMBOX 63 Small Distribution Boards SIMBOX 63 SIMBOX 63- SIMBOX 63-Small Distribution Boards ( : ) for flush mounting in hollow walls (e. g.: studded walls) 70mm For mounting of components depth up to 70mm IEC 439-3, EN VDE 0603 DIN According to IEC 439-3, EN , VDE 0603 and DIN IP30 Flame retardant hollow-wall case 2 Degree of protection IP30 125mm 35 x 7.5mm Protection class 2, isolation protection DIN EN50022 Mounting rail centres 125mm, mounting rail 35 x 7.5mm N/PE according to DIN EN50022 ( ) With new comb-type flange and new advanced N/PEterminals (with special box-type clamps) : RAL 9010 Colour: RAL 9010 pure white (18mm) Type External Recess MW Order No. weight Dimensions Dimensions (18mm) H W H W D kg Standard Distribution Boards, flush mounting for hollow walls - /completely assembled 1-1-tier GB tier GB tier ) 8GB tier ) 8GB , Standard Distribution Boards, flush mounting for hollow walls - ( ) as separate components for later assembly(kit-form), Hollow-wall case, flame retardant N/PE-,, including N/PE-terminals, comb-type flange, cardboard cover plate 1-1-tier GB tier GB tier GB tier GB Component carrier assembly,, including mounting rails, cover, door with frame 1-1-tier GB tier GB tier ) 8GB tier ) 8GB Low-profile Distribution Boards, flush mounting 55mm/for mounting of components with retrofitting depth up to 55 mm available upon request 3 3/9 For dimension drawings, see page 3/9. 1) 3 4, 13 For 3-and 4-tier boards the upper and lower row can be extended to 13MW by cutting out pre-moulded sections of the cover 3/3

109 SIMBOX 63 Small Distribution Boards SIMBOX 63 SIMBOX 63- SIMBOX 63-Small Distribution Boards,, for surface mounting, metal door with transparent windows 70mm For mounting of components depth up to 70mm IEC EN VDE 0603 DIN According to IEC 439-3, EN , VDE 0603 and DIN IP30 Degree of protection IP30 2 Protection class 2, isolation protection 125mm 35 x 7.5mm, Mounting rail centres125mm, mounting rail 35 x 7.5mm DIN EN50022 according to DIN EN50022 N/PE With new comb-type flange and new advanced N/PEterminals (with special box-type clamps) ( ) : RAL 9010 Colour: RAL 9010 pure white (18mm) Type External Recess MW Order No. weight Dimensions Dimensions (18mm) H W H W D kg Standard Distribution Boards, surface mounting metal door with transparent windows 1-1-tier GB tier GB tier ) 8GB tier ) 8GB Low-profile Distribution Boards, surface mounting 55mm/for mounting of components with retrofitting depth up to 55 mm available upon request 3/10 For dimension drawings, see page 3/10. 1) 3 4, 13 For 3-and 4-tier boards the upper and lower row can be extended to 13MW by cutting out pre-moulded sections of the cover 3/4

110 SIMBOX 63 Small Distribution Boards SIMBOX 63 SIMBOX 63- Accessories for SIMBOX 63-Small Distribution Boards ( ) ( ), flush mount (solid and hollow walls) and surface mount (metal door), as described before Type Order No. weight, 14, Blanking Strip for 14 modular width, with pre-cut segmentspure N/PE-, 2 4- (RCDs), 30 4 mm mm 2 Additional N/PE-terminal strip for 2 to 4-row distribution boards for dividing the neutral conductors when using 2 RCDs with 30 4mm 2 and 6 16mm 2 terminals ( 19, ) Door locking kit with key (max. 19 different keys available on asking) kg /white 8GB /grey 8GB GB GB ( ) Spare key (please specify key-no. when ordering) 8GB Dividers for distribution boards 3-3-tier vertical 8GB tier vertical 8GB and-4tier horizontall 8GB ( ) Sleeve (only for flush-mounting solid and hollow-wall boxes) for cable routing and mechanical joining of wall boxes 3 8GB ( ) Wall-anchor (only for flush-mounting solid wall boxes) one pair - for fixing 2 pairs are erquired per wall box 8GB RCD mm 2 / mm 2 RCD-terminal mm 2 / mm 2 8GB /5

111 SIMBOX 63 Small Distribution Boards SIMBOX 63 SIMBOX 63- SIMBOX 63-Small Distribution Boards, for surface mounting, hood-type 70mm For mounting of components depth up to 70mm IEC EN VDE 0603 DIN According to IEC 439-3, EN , VDE 0603 and DIN IP30 Degree of protection IP30 2 Protection class 2, isolation protection 125mm 35 x 7.5mm Mounting rail centres125mm, mounting rail 35 x 7.5mm DIN EN50022 according to DIN EN50022 N/PE With new comb-type flange and new advanced N/PEterminals (with special box-type clamps) ( ) : RAL 9010 Colour: RAL 9010 pure white (18mm) Type External MW Order No. weight Dimensions (18mm) H W D kg, /Standard hood-type Distribution Boards, surface mounting - /without door 1- /1-tier ) 8GB /2-tier ) 8GB /3-tier ) 8GB /4-tier ) 8GB , /Standard hood-type Distribution Boards, surface mounting - RAL9010 /with door in RAL9010 pure white 1- /1-tier ) 8GB /2-tier ) 8GB /3-tier ) 8GB , /Standard hood-type Distribution Boards, surface mounting - ( - )/with door in transparent darkened (smoke-topaz) 1- /1-tier ) 8GB /2-tier ) 8GB /3-tier ) 8GB /Ratrofit Door-kits -, /for Standard hood-type Distribution Boards, surface mounting RAL 9010, /Door-kit in RAL 9010 pure white, hinges and screws included 1- /1-tier GB /2-tier GB /3-tier GB ( - ), Door-kit in transparent darkened (smoke-topaz), hinges and screws included 1- /1-tier GB /2-tier GB /3-tier GB /Transparent door for each row 1, 12,, /1 row, 12MW, latching, frame pure white 8GB , 12,, /1 row, 12MW, sealable, frame pure white 8GB /10 For dimension drawings, see page 3/10. 1) 13 All rows can be extended to 13MW by cutting out pre-moulded sections of the cover 3/6

112 SIMBOX 63- SIMBOX 63 Small Distribution Boards SIMBOX 63 Accessories for SIMBOX 63-Standard Distribution Boards surface mount hood-type, as described before Type Order No. weight kg, 14, Blanking Strip for 14 modular width, with pre-cut segmentspure /white 8GB /grey 8GB4 671 N/PE-, 2 4- (RCDs), 30 4 mm mm 2 Additional N/PE-terminal strip for 2 to 4-row distribution boards for dividing the neutral conductors when using 2 RCDs with 30 4mm 2 and 6 16mm 2 terminals 8GB Door locking kit with key /white 8GB Spare key 8GB Dividers for distribution boards 3-3-tier vertical 8GB tier vertical 8GB and-4tier horizontall 8GB RCD mm 2 / mm 2 RCD-terminal mm 2 / mm 2 8GB /7

113 SIMBOX 63 Small Distribution Boards SIMBOX 63 Dimension drawings Flush mounting Flush mounting in solid walls Plaster Wall recess for wall box Plaster Wall recess for wall box Flush mounting in hollow walls 102 ( 75) min. 102 for standard board (min. 75 for low-profile board) Wall thickness leveling h= /row /row /row /row 3/8

114 SIMBOX 63 Small Distribution Boards SIMBOX 63 Dimension drawings Surface mounting Surface mounting, metal door With windows in door Surface mounting, hood-type with and without door Without door Transparent doors /Latching Hinge 3 Spring hinge /Sealable Fixing holes With door 3/9

115 SIMBOX 63 Small Distribution Boards SIMBOX 63 Mounting reference Install and remove the hinge Door frame Door Hinge spring Hinge Hinge spring engaged Screwdriver blade Install Remove Put the hinge in the pocket Press the hinge spring engaged with screwdriver Press the hinge spring to looseness with screwdriver then take away the hinge Remove the protection cover Remove the cover Adjusting with long hole Box mounted in obligue in solid or hollow wall Plug in with the screwdriver Move to side Install the lock Adjusting device base with stretcher in solid or hollow wall Lock Front side of door 3/10

116 SIMBOX 63 Small Distribution Boards SIMBOX 63 Mounting reference Flush mounting 55mm SIMBOX 63 Install Flush-mounting SIMBOX63 for Snap-on components with depth 55mm 1 Suggestion 1 2 Suggestion 2 Normal brick DIN 105NF ( ) With brick according to DIN 105 NF (Normalformat) Building material plate lncluding rabbet butt stoaps attached with cement mortar Depth of the recess Depth of the recess 20mm Approximately 20mm plaster 20mm Approximately 20mm plaster Hollow wall Install flush mounting in hollow walls Cavity of wall 3 mounting hook Put the small distribution board in the wall max Mounting instruments 4x per cabinet Turn it to 90 then tighten the screws with screwdriver Install stiding-flange to fix the wires 3/11

117 SIMBOX 63 Small Distribution Boards SIMBOX 63 Mounting reference Flush-mounting and hollow wall type Connection of junction bards Horizontal connection of two junction boards which built in solid wallsor hollow walls Cut and deburr on mark between two junction boxes Connection two distribution boards and press the sleeve 1 Cover 1 For connection of the junction boards horizontal in solid and hollow walls 2 Cover 2 Door retrofitting Hinge on left or right Fix the front part on the back wall with rapid fixing screws Fix hinge in door pocket 3/12

118 SIMBOX 63 Small Distribution Boards SIMBOX 63 Mounting reference Engagement of transparence plastic door Cut out the motch with 12 pitch writ letf and 13 pitch unitright Mount the transparence plastic door Mounting the lock on the board Open a hole for lock in the door at top or bottom 8GB4 378 Screw out the bolt from 8GB4 378 and remove mounting plate Take away the lock Mount the plastic-part into the hole of door Install the lock again Install the mounting plate and tighten the screw Cut off corresponding arresting peg in door Tighten the lock plate on the boards Front side of door 3 8GB4 378 Lock 8GB /13

119 Modular Devices 4/0

120 Modular Devices Disconnectors A, V, 50/60Hz DIN VDE 0632, 101 ( 63A) DIN VDE 0660, 107 (80/100A), 35mm DIN (DIN ), >N< (55mm ) Selection and ordering data Switch Disconnectors A, 230 and 400V, 50/60Hz According to DIN VDE 0632, Part 101 (up to 63A) According to DIN VDE 0660, Part 107 (80/100A) Sealable, snapping on 35mm DIN mounting rails (DIN ) Lockable model, > N < type (55mm depth) U e ~ Contacts Rated Voltage U e ~ Rated Current Conductor size MW Order No. ( V) (A) up to mm 2 1 1NO TE TE TE TE TE NO TE TE TE TE TE NO TE TE TE TE TE TE TE NO TE TE TE TE TE7 714 /On/off switches /Handle lockable by means of padlock ( ø max. 3.5mm)/(lock has ø max. 3.5mm) 3 3NO TE NO TE On/off switches /With pilot light 1 1NO TE Changeover switches 1 1 changeover TE changeover TE7 162 Changeover switches with intermediate position 1 1 changeover TE changeover TE /1

121 Modular Devices Disconnector Selection and ordering data Disconnectors IEC 947-3, EN , NEMA IEC 947-3, EN , NEMA certified 92mm 92mm device mounting depth - DIN mm DIN Lockable - snapping on 35mm DIN mounting rails in accordance with DIN Screw mounting also possible. ( ) FRONT ROTARY DRIVE (black knob with transparent masking frame) U e ~ Contacts Rated Voltage U e ~ Rated Current MW Order No. (V) (A) 2 2NO TE TE TE TE NO TE TE TE TE NO TE TE TE TE N TE NO+N through-type TE TE TE1 640 (, VDE 0113 ) EMERGENCY-STOP FRONT ROTARY DRIVE (red knob with yellow masking frame, according VDE 0113) 3 3NO TE TE TE TE NO TE TE TE TE /60 Accessories see page 1/60. 4/2

122 Modular Devices Disconnectors 5TE1( ) Selection and ordering data Accessories for 5TE1 (disconnectors) ( ) Auxiliary current switch, retrofittable on both sides (2 pieces max.) U e ~ Contacts Rated Voltage U e ~ Rated Current MW Order No. (V) (A) TE changeover TE changeover (1 ) Sealable terminal cover (1 piece) 100A 125A 5TE9 000 for 100A and 125A disconnector 160A 200A 5TE9 001 for 160A and 200A disconnector Terminal connectors 160A 200A for 160A and 200A disconnectors 3 5TE set of 3 terminal connectors 4 5TE set of 4 terminal connectors Handle padlock device 3 ø 8 mm 5TE9 014 lockable with max. 3 padlocks ø 8 (4, 100A 125A) Connections kit for flat bars (4 pole, 100A and 125A) 15mm 5TE9 015 flat bar, 15mm wide max., Rotary drive, for fitting in doors and covers Black knob 200 mm 5TE mm sheft length 400 mm 5TE mm shaft length Red knob 200 mm 5TE mm shaft length 400 mm 5TE mm shaft length 4 4/3

123 DIN VDE 0632 Pushbuttons According to DIN VDE 0632 Modular Devices Pushbuttons and Indication lights Selection and ordering data U e ~ Rated Voltage U e ~ Rated Current Conductor cross section MW Order No. (V) (A) up to (mm 2 ) Pushbuttons TE NO + 1NC Pushbutton with indicator lights 1 /1 NO TE /1 NC TE4 702 Indicator lights, E 10 With clear neon lamp base E 10, without cap, without diodes 230 0, TE5 700 /Caps /Clear 5TG8 036 /Red 5TG8 034 /Green 5TG8 035 Spare neon lamps 5TG8 004 Clear, also for red cap /Green 5TG8 006 Incandescent lamp 1.2W, 24V,50/60Hz, E10 5TG W, 24V,50/60Hz, base E10, clear incl. replacement tool 4/4

124 Modular Devices Remote Switches ( ) 16A, 8, 12, 24, 110, 230V 400V, 50/60Hz DIN VDE mm2 230V : 10mA 100% ED Selection and ordering data 5TT W 1200 W/ 1200 W 800 W/ 58W / / / / / U e ~ U c (V) (A) (V) ~8 1 5TT5 511 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT ~8 1 5TT5 512 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT ~12 2 5TT ,~24 5TT ,~110 5TT ,~230 5TT ~8 1 5TT5 516 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT ~ TT ~ TT ~ TT /5

125 Remote Switches (Pulse switch) 16A, 8, 12, 24, 110, 230V and 400V, 50/60Hz According to DIN VDE 0637 Modular Devices Remote Switches Selection and ordering data Conductor cross section up to 6 mm 2 Maximum neon lamp load of pushbuttons at 230V: 10mA With protective device for pushbutton operation failure with100% ED With hand operation and switch position indication single -pole multi-pole and 5TT5 511 Incandescent lamp load: 2400 W 1200 W/pole Transformer for Halogen lamps 1200 W 800 W/pole Fluorescent lamps 58W: Uncompensated 25 units 25 units/pole Parallel compensated 35 units 28 units/pole DUO circuit 2 20 units 2 16 units/pole ECG Siemens 1-lamp 30 units 24 units/pole 2-lamp 2 15 units 2 12 units/pole Application For switching lighting loads using pushbuttons Contacts Rated Voltage U e ~ Rated Current Rated Control MW Order No. (V) (A) Voltage U c (V) 1NO remote switches ~8 1 5TT5 511 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT NO remote switches ~8 1 5TT5 512 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT NO remote switches ~12 2 5TT ,~24 5TT ,~110 5TT ,~230 5TT CO remote switches ~8 1 5TT5 516 ~12 5TT ,~24 5TT ,~110 5TT ,~230 5TT5 536 Changeover switches with central ON/OFF switching 1 CO ~ TT NO ~ TT NO ~ TT /6

126 Modular Devices Remote Switches 16A, 24V, 230V, 50Hz DIN VDE 0632 According to DIN VDE 0632 For central group and on-site switching 2 x 2.5 mm 2 6.4/6.6 VA 24 / 230 V U e With operation display for conductor sizes up to 2 x 2.5 mm 2 Coil voltage rating : 1500W/ Incandescent lamp load: 58 W 20 / 2 x 20 / Solid-state remote switches With central and group switching 16A, 24V, 230V, 50Hz Fluorescent lamps 58 W: Compensated DUO circuit Selection and ordering data 6.4/6.6 VA at 24 / 230 V U e 1500 W/pole 20 units/pole 2 x 20 units/pole /Application: Depending on the plant construction all central ON/OFF switches can be used. Additionally all the devices can be used separately and switched ON/OFF in groups. The load is switched conventionally via this room switch. U e ~ U c Rated Voltage U e ~ Rated Current Rated Control Voltage U c MW Order No. (V) (A) (V) 1 /1NO ~24 2 5TE ~ TE /2NO ~24 2 5TE ~ TE /7

127 Modular Devices Modular Contactors Selection and ordering data : 20A, 230V, 50/60Hz; 24, 230V,50/60Hz Modular contactors Application: domestic and tertiary uses 20A, 230V, 50/60Hz; 24, 230V,50/60Hz 24, 40 63A, 400V, 50/60Hz; 24, 115, 230V, 50/60 Hz 24, 40 or 63A, 400V, 50/60Hz; 24, 115, 230V, 50/60 Hz or 24, 24, 110, 220 V DC IEC 947, DIN VDE 0660 DC/AC 110, 220 V DC According to IEC 947, DIN VDE 0660 for DC/AC operation for operation display with LED 20A 24A 20A 24A mm Conductor cross section up to mm VA Rated power consumption of the coil: VA : AC-1: A User categories: AC-1: A AC-3: kw AC-3: kw : W/ Incandescent lamp load: W/pole W: Fluorescent lamp load 58 W: / Uncompensated units/pole / 4 5 Parallel compensated units/pole 4 5 / 2 x10 2 x15 DUO circuit units/pole 2 x10 2 x15 U e ~ U c Contacts Rated Voltage U e ~ Rated Current Rated ControlVoltage U c MW Order No. (V) (A) (V) 1 /1NO ~ TT3864 ~24 5TT /1NC ~ TT3865 ~24 5TT /2NO ~ TT3 861 ~24 5TT ~ TT NO + 1NC ~24 5TT /2NC ~ TT3 863 ~24 5TT /4 NO ~230, TT3 801 ~24, 24 5TT3 811 ~115, 110 5TT ~230, TT NO + 1 NC ~24, 24 5TT ~230, TT NO + 2 NC ~24, 24 5TT /4 NC ~230, TT3 804 ~24, 24 5TT /8

128 Modular Devices Modular Contactors ( )/Modular contactors (continuation) 40 A 40 A 63 A 63 A NO NC NO NC mm Conductor cross section up to : VA Rated power consumption of the coil: : AC-1: A User categories: AC-3: KW : W/ Incandescent lamp load: W/pole 58 W: Fluorescent lamp load 58 W: / Uncompensated units/pole / Parallel compensated units/pole / DUO circuit units/pole U e ~ U c Contacts Rated Voltage U e ~ Rated Current Rated Control Voltage U c MW Order No. (V) (A) (V) 4 /4 NO ~230, TT3 806 ~24, 24 5TT ~230, TT NO + 1 NC ~24, 24 5TT3 841 Selection and ordering data ~230, TT NO + 2 NC ~24, 24 5TT /4 NC ~230, TT3 823 ~24, 24 5TT /4NO ~230, TT3 807 ~24, 24 5TT ~230, TT NO + 1 NC ~24, 24 5TT ~230, TT NO + 2 NC ~24, 24 5TT /4 NC ~230, TT3 826 ~24, 24 5TT /9

129 5TT to 63 A Accessories for 5TT to 63 A /Auxiliary current switch ( )/Retrofittable on the left side (1 piece per contactor) Modular Devices Modular Contactors Selection and ordering data U e ~ U c Contacts Rated Voltage U e ~ Rated Current Rated Control Voltage U c MW Order No. (V) (A) (V) 2 /2NO ,5 5TT /1NO + 1 NC ,5 5TT3 892 (2 )/Sealable terminal cover (two pieces) 5TT3 8, 24 5TT3 895 For contactors 5TT3 8, 5TT3 8, 40, 63 5TT3 896 For contactors 5TT3 8, /Modular contactors : 20A, 24V, 230 and 400V, 50/60Hz IEC 947, DIN VDE 0660 : 3.5VA 4 mm 2 : AC-1: 20 A AC-3: 4 kw : 1600 W 58W: Application: industrial use 20A, 24V, 230 and 400V, 50/60Hz According to IEC 947, DIN VDE 0660 Sealed Rated power consumption of the coil: 3.5VA Conductor cross section up to 4 mm2 User categories: AC-1: 20 A AC-3: 4 kw Incandescent lamp load: 1600 W/pole Fluorescent lamps 58 W: Uncompensated 24 units Parallel compensated 10 units DUO circuit 2 28 units ECG Siemens 1-lamp 30 units 2-lamp 2 12 units TT NO ~24 5TT3 985 ~110 5TT3 984 ~230 5TT TT NO + 1 NC ~24 5TT3 990 ~110 5TT3 988 ~230 5TT /10

130 Switch disconnectors Modular Devices Dimension drawings 5TE TE TE TE TE TE TE TE TE TE TE TE TE TE TE7 513 (-2) 5TE TE TE7813 5TE TE7 514 (-2) 5TE TE TE TE TE7 161 Pushbuttons 5TE TE TE TE TE /11

131 Modular Devices Indicator light Dimension drawings 5TE5 700 Remote switches 5TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT /12

132 5TE A Disconnectors 5TE1 100 and 125 A Modular Devices Dimension drawings 5TE A Disconnectors 5TE1 160 and 200 A 5TE9 Auxiliary current switch 5TE9 5TE9 005, 5TE TE9 014 Handle padlock device 5TE /13

133 Modular Devices 100A 125A Rotary drive, for fitting in doors and covers For disconnectors 100 A and 125 A 5TE9 010, 5TE TE9 012, 5TE9 013 Dimension drawings 4/14

134 Modular Contactor Modular Devices Dimension drawings 5TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT TT /15

135 Modular Devices Modular Relays Selection and ordering data 16A, 8, 12, 24, 110, 230V,50Hz DIN VDE 0435 DIN VDE x 2.5 mm 2 1.8/2.1 VA : 1500W/ 58W: 20 / 2 20 / Ue~ Uc (V) (A) (V) ~8 1 5TT3 041 ~12 5TT3 042 ~24 5TT3 043 ~110 5TT3 044 ~230 5TT ~8 1 5TT3 051 ~12 5TT3 052 ~24 5TT3 053 ~110 5TT3 054 ~230 5TT ~8 1 5TT3 061 ~12 5TT3 062 ~24 5TT3 063 ~110 5TT3 064 ~230 5TT ~8 1 5TT3 071 ~12 5TT3 072 ~24 5TT3 073 ~110 5TT3 074 ~230 5TT TT TT TT mm ~ TT A, 230V,50Hz DIN VDE 0435 DIN VDE x 2.5 mm2 1.8W 1500W/ 58W: W, 230V AC W, 230V AC ~ TT /16

136 Modular Devices Modular Relays Selection and ordering data Switching Relays 16A, 8, 12, 24, 110, 230V,50Hz According to DIN VDE 0435 Safe isolation according to DIN VDE 0106 Part 101 With operation display Conductor cross section up to 2 x 2.5 mm 2 Coil rating 1.8/2.1 VA Incandescent lamp load: 1500W/pole Fluorescent lamps 58W: Uncompensated 20 units/pole DUO circuit 2 x 20 units/pole Application For switching of small loads in control systems or switching of incandescent/fluorescent lamps. Contacts Rated Voltage Ue~ Rated Current Rated Control MW Order No. (V) (A) Voltage Uc (V) 1NO ~8 1 5TT3 041 ~12 5TT3 042 ~24 5TT3 043 ~110 5TT3 044 ~230 5TT NO ~8 1 5TT3 051 ~12 5TT3 052 ~24 5TT3 053 ~110 5TT3 054 ~230 5TT CO ~8 1 5TT3 061 ~12 5TT3 062 ~24 5TT3 063 ~110 5TT3 064 ~230 5TT CO ~8 1 5TT3 071 ~12 5TT3 072 ~24 5TT3 073 ~110 5TT3 074 ~230 5TT CO TT TT TT3 077 Sealable version When the device is continuously switched a clearance of 7.5 mm between the devices must be adhered to. 1CO ~ TT3 080 Switching relays For capacative loads 16A, 230V,50Hz According to DIN VDE 0435 Safe isolation according to DIN VDE 0106 Part 101 With operation display Conductor cross section up to 2 x 2.5 mm2 Coil rating 1.8 W Incandescent lamp load: 1500 W/pole Fluorescent lamps 58W: Parallel compensation 13 units Uncompensated 20 units DUO circuit 2 x 20 units Halogen metal-vapour lamp 400W, 230V AC 2 units 1000W, 230V AC 1 units Application Special switching of capacative lighting, with incandescent lamps with high pressure and halogen metal-vapour lamps 1 NO ~ TT /17

137 / 4A, 230V, 50/60 Hz; 230/400V, 50/60Hz IEC 255, DIN VDE x 2,5 mm2 : to 8% 0,1-20s : U = 0,9-1,3Uc ab U ab = 0,7-1,1Uc : U an = 4% Undervoltage/overvoltage Relay 4A, 230V, 50/60 Hz; 230/400V, 50/60Hz According IEC 255, DIN VDE 0435 Conductor cross section up to 2 x 2,5 mm 2 Modular Devices Monitoring Device Selection and ordering data Recognition: - Overvoltage - Undervoltage - Phase failure - Asymmetrical 6 to 8% of the phase symmetrie Monitoring 3 phases with respect to N LED diagnostics Adjustable time delay 0,1-20s Adjustable : Overvoltage U ab = 0,9-1,3Uc Undervlotage U ab = 0,7-1,1Uc Hysterese: U an = 4% Ue~ Uc (V) Rated Voltage Ue~ Rated Current Rated Control MW Order No. (V) (A) Voltage UC (V) ~230/ TT3 408 Phase monitor and phase sequence monitor 4A, 230V, 50/60Hz; 230/400V, 50/60Hz 4A, 230V, 50/60Hz; 230/400V, 50/60Hz IEC 255, DIN VDE 0435 According IEC 255, DIN VDE Changeover ( ) LED for each phase (phase monitor version) ( ) And LED for phase sequence (phase sequence monitor version) : ~230/ TT3 421 ( ) Phase monitor: (any phase sequence) Phase failure : ~230/ TT3 423 Phase sequence monitor: Identify the phase sequence in three phase networks 4/18

138 Modular Devices Monitoring Devices 5A,230V, 50/60Hz; 230V, 50/60Hz IEC 255, DIN VDE 0435 : VA Current Monitor 5A,230V, 50/60Hz; 230V, 50/60Hz According IEC 255, DIN VDE 0435 Identifying: - short-circuit - overload - underload 3 measuring ranges up to 400VA Selection and ordering data U e ~ U c Rated Voltage U e ~ Rated Current Rated Control MW Order No. (V) (A) Voltage U c (V) ~ TT / 400V U emax : 275V AC / 350 V DC DIN VDE 0675 C (IEC 664) Overvoltage Protection 230 / 400V Networks. U emax : 275V AC / 350 V DC according DIN VDE 0675 user class C (IEC 664) (8 / 20 µs): 15kA Inrushcurrent (8 / 20 µs): 15kA Signals failure with red indicator PE L MW Order No. 1 5SD7 052 one pole /Load 4 4/19

139 IEC 255 EN mm / / 50 : 10 A 16 A, 4 A 2.5 A P.f. = 0.6 : 400W : -10,...+55ºC : 1 : s/ Digital time switches According to IEC 255 and EN Rail mounting 35mm Automatic summer/winter time switching Manual / automatic switching 50 hours running reserve Modular Devices Digital Time Switches Selection and ordering data contact : 10 A and 16 A, 4 A and 2.5 A P.f. = 0.6 incandescent load : 400W Temperature range : -10,...+55ºC Minimum switching interval: 1 minute Time error : 2.5 and 1.0 s/day type Ue~ Uc Contacts Rated Voltage Ue~ Rated Current Rated Control Voltage Uc MW Order No. (V) (A) (V) /Daily program ~ LF /6 ON-OFF 1 /1 CO /Weekly program ~ LF /14 ON-OFF ~24 7LF /1 CO ~12 7LF4 113 /Weekly with cycle and pulse program 1 /1 CO ~ LF4 114 /Weekly program on-off 2 /2 CO ~ LF4 120 /Weekly with cycle and pulse program on-off 2 /2 CO ~ LF /20

140 Modular Devices Digital Time Switches Selection and ordering data 7LF4 1 7LF4 1 digital time switches Yearly/weekly program DCF77 For DCF 77 radio-controlled signal h power reserve switching points s/day typical running accuracy With cycle, random and pulse program with single date switching channel, 105 switching points U e ~ I e U e ~ Rated voltage U e ~ Rated current I e Rated control MW Order No. voltage U e ~ (V) A (V) LF X53 1 channels, 2X53 switching points LF X35 3 channels, 3X35 switching points LF LF LF /21

141 220 to 240V, 50Hz :µ- 10A, 16A, 2.5A P.f. = 0.6 : 1000W : ºC ºC : IP 65 : lux, lux : s /50 s : 4 mm2 : 100 m mm 2 Photo Electric Switches 220 to 240V, 50Hz Modular Devices Photo Electric Switches Selection and ordering data Contact: µ-contact 10A, 16A 2.5A P.f. = 0.6 Incandescent lamp load: 1000W Temperature range: Light sensor -30 to + 70ºC Device -20 to + 55ºC Degree of protection: Light sensor IP 65 Setting ranges: 2 to 300 lux, 200 to lux Hysterisis: Factor 1.3 from set value 50 s ON/50 s OFF, undelayed Conductor cross section up to 4 mm 2 Light sensor: max. cable length 100 m max. cable cross section mm 2 /Applications For automatic switching of lighting systems for e.g. shop window displays or footpaths where lighting is not necessary when there is sufficient daylight. U e ~ U c (V) Rated Voltage U e ~ Rated Current Rated Control MW Order No. (V) (A) Voltge U c (V) channel model 1 CO ~ TT channel model 2 CO ~ TT3 302 ( ) Light sensor (With wall mounting) 5TT /22

142 Modular relays Modular Devices Dimension drawings 5TT TT TT TT TT TT3 080 Sealable version Under/overvoltage relay 5TT3 408 Phase monitor 5TT3 421 Phase sequence monitor 5TT3 423 Modular devices 4 Current monitor 5TT /23

143 Modular Devices Dimension drawings Digital time switches Modular devices 7LF LF LF LF LF LF LF LF LF LF LF LF4 154 Photo Electric Switches 5TT TT TT /24

144 Modular Devices Lightning Current and Surge Arresters 1.5km Building power connection Description DIN VDE0675-6(11.89) A B C D B-D B C EN mm D ( PC) DELTA Schuko 100 Lightning current arrester (E ) Lightning current arrester (class E) Thunderstorms - no problem Coordinated use of lightning current-and surge arresters Wolfgang Pilsl Expensive electronic equipment is being increasingly used in all kinds of businesses - industry, government and local government facilities and domestic households. Electrostatic discharge, overvoltage caused by switching or by lightning often cause these highly sensitive units to fail. Electronic equipment is especially prone up to 1.5km way from lightning strikes due to the electromagnetic fields and cable-borne overvoltages. However, effective protection is now available. Overvoltage protective devices for power systems and plants are subdivided into Classes A, B, C and D depending on their application areas, according to DIN VDE (11.89). Siemens offers overvoltage protective devices for Classes B to D, which cover the complete installation on the low-voltage side, from the distribution up to the socket outlet. In distribution systems, Class B and C devices are snapped onto 35 mm mounting rails, conforming to EN Class D overvoltage protective modules can protect sensitive electronic equipment such as PCs. They can be mounted on the modular DELTA Schuko socket outlets. In Germany, approximately one million lightning strikes per year represent a potential hazard for electronic equipment due to overvoltages. 15m De-coupling reactor or approx. 15m cable (C ) Surge arrester (class C) (FM) Surge arrester (FM) T (FM) 4 Surge arrester T (FM) (D ) Surge arrester (class D) DELTA Schuko DELTA Schuko socket outlet with overvoltage protection The coording ated use of Siemens lightning arresters and surge arresters from an energy perspective avoids damage and subsequent costs 4/25

145 Modular Devices Lightning Current and Surge Arresters Description (EMC) A concept for EMC-oriented lightning DIN VDE0185 " protection zones " The classic "outer and inner lightning protection DIN concept" according to DIN VDE 0185 has proven IEC1312-1(VDE ) itself to be no longer adequate for plants and EMC systems with a substantial amount of electronic equipment. This is where the newly-developed ( concept of the EMC-oriented lightning ) protection zones, according to DIN IEC ~3 (VDE 0185 Part 103), comes into its own. 0A These zones, inside and outside a building, are (LEMP) 0B limited by screening measures, which are provided, for example, suing metal enclosures 1 (metal facades, covers, metal housing etc.). Lightning protection zones are classified ( 30dB) according to numbers 0 to 3. In this case, 2 protection zone 0A is the location where the lightning directly strikes. The undampened, electromagnetic field of the lightning (LEMP) 3 radiates from here. The next zone 0B indicates that there is no direct lightning strike, but the 1~3 zone is saturated with strong electromagnetic fields. Protection zone 1 is located within a building, directly behind the screening effect of the external wall (e.g. steel reinforcement structure of concrete facades). The EMC electromagnetic field is considerably weaker here (typically 30 db). Terminal devices are centrally protected in 0A 1 protection zone 2. This is achieved by ensuring that the electromagnetic field is significantly reduced, e.g. using potential bonding rails. Protection zone 3 is the protected zone within (10/350ms) and electronic device or unit. Protection zones 1 to 3 guarantee disturbancefree operation of electronic equipment using (8/20ms) the subsequently described measures, even in a noisy electromagnetic environment caused 1 2 by lightning strikes. Arresters correctly coordinated from the energy perspective The concept of EMC-oriented lightning 2 3 protection zones defines, among other things, the locations of arresters as well as the demands placed on them. At the transition from protection zone 0A to protection zone 1, lightning current arresters B C 35mm D DELTA Schuko DIN IEC1312-1(VDE ) EMV must accept a large proportion of the lightning current, so that the surge arresters in the following zones can still fulfill their fuction, undamaged. Lightning current arresters have spark gaps with which the impulse wave of the direct lightning strike (10/350ms) is reduced to a weaker impulse wave. In this case, the spark gap must also be able to reliably interrupt the subsequent current at discharge. Surge voltages for remote lightning strikes result in surge current waves of 8/20ms. At the transition from protection zone 1 to protection zone 2, the remaining surge current wave must be discharged and the voltages reduced to a level which the system or plant can handle. A metal oxide varistor is the optimum device (a varistor is a voltagedependent resistor) which has fast response characteristics and low residual voltages. The transition from protection zone 2 to protection zone 3 is especially oriented to the terminal devices. Varistors limit the voervoltages between the phase and neutral conductors caused by switching operations and magnetic induction. The surge currents are best discharged to ground using gas-filled spark gaps. Advantages at a glance Overvoltage- and lightning protection from the distribution up to the socket outlet Class B and C surge arresters can be snapped onto 35mm mounting rails Class D overvoltage arresters can be mounted on DELTA Schuko socket outlets Protective devices according to the requirements of the EMC-oriented lightning protection concept according to DIN IEC (VDE 0185 Part 103) The coordination of lightning current arresters and overvoltage arresters from a energy perspective can be essentially compared with the discrimination of fuses in power circuits. Just like grading fuses,surge arresters must be dimensioned so that ther do not overload the arresters of the following protection zones when overvoltages occur. 4/26 Lightning arrester fitted in a main distribution board Surge arrester fitted in combination with miniature circuit breakers in a subdistribution board

146 Modular Devices Lightning Current and Surge Arresters Technical data Lighting Surge Surge arrester Decoupling arrester arrester socket reactor 5SD SD SD SD SD UB1... 5SD7 051 Order No. 5 UH1... / TESTED E DIN VDE 0675, Part 6/11.89 and Part 6/A1/03.96 Requirement categroy B C D Rated voltage Uc of arrester 255V/50Hz 275/50Hz 255/50Hz ( ) (max. permissible operating voltage) / Nominal voltage 230V/50Hz 500V/50Hz 4kArms Follow current quenching at Uc / Discharge capacity 1 (10/350) limp 75kA 1 (8/20) lsn 15kA 3kA L(N)->PE, L->N 5kA L+N->PE 1 (8/20) lsnmax 40kA / Protective level Up <=3.5kV <=1kV <=1.25kV/<=1.5kV <=100ns <=25ns 25ns L->N Response time ta 100ns L(N)->PE 250A gl/gg 125A gl/gg 16A gl/gg 35A gl/gg Max. back-up fuse, or C16A if not already fitted in power system Short-circuit strength 50kA/50Hz with max. back-up fuse 10mm 2 1.5mm 2 Min. connecting conductor / 1.5mm 2 / 0.75mm 2 / cross-section 10mm 2 solid 1.5mm 2 solid/stranded 1.5mm 2 /stranded solid/stranded 50mm 2 35mm 2 Max. connecting conductor /35mm 2 35mm 2 /25mm 2 2.5mm 2 /25mm 2 cross-section 50mm 2 stranded 35mm 2 stranded/25mm 2 stranded 35mm 2 stranded / 35mm 2 stranded /25mm 2 stranded / Temperature range (-40 C C) (-25 C C) (-40 C C) / Degree of protection IP20 IP20 IP20 / Mounting IEC mm see arrester 35mm mounting rail to IEC Surface mounting DIN43880 Mounting dimensions to DIN MW 1MW 2MW / Nominal current In 35A / Nominal inductance Ln 15µH±20% 4m DC restistance Rcu approx. 4mOhm / Optical function indicator no yes yes no /fault indicator / Reemote indicator no no yes no yes no no 4 4/27

147 PEN TN TN system with opeing of the PEN in the main distribution board Modular Devices Lightning Current and Surge Arresters Connection diagrams / Main distribution board / Subdistribution board / Socket outlet level L1 L2 L3 PEN F1* F2* F3* F1 LS L1 L2 L3 N PE 5SD7050 5SD >15m (4X5SD7051) Line length >15m or decoupling reactor (4x 5SD7051) 5UB1... F1>250A F2<250A F1>125A F3<125A F2 250A if F1 250A F3 125A if F1 125A PEN TN TN system with opening of the PEN in the subdistribution board / Main distribution board / Subdistribution board / Socket outlet level L1 L2 L3 PEN F1* F2* F3* F1 LS L1 L2 L3 N PE 5SD7050 5SD >15m (4X5SD7051) Line length >15m or decoupling reactor (4x 5SD7051) 5UB1... F1>250A F2<250A F1>125A F3<125A F2 250A if F1 250A F3 125A if F1 125A TN TN system with directly connected subdistribution board / Main distribution board / Socket outlet level L1 L2 L3 PEN F1* F2*F4* F1 LS L1 L2 L3 N PE F3* 4/28 5SD7050 5SD7051 5SD F1>250A F2<250A F1>35A F3<35A F2 250A if F1 250A F3 35A if F1 35A 5UB1... ( ) Surge arresters, decoupling reactors, earth-leakage circuit-breakers and miniature circuit-breakers can be interconnected with busbars to suit the given conditions (see catalog).

148 Modular Devices Lightning Current and Surge Arresters 5SD7 05 ( ) 230V AC ( ) ( DIN VDE0110/IEC Publ. 664) Selection and ordering data 5SD7 05 lighting current and surge arresters for low-voltage installations (indoor installations) Selection criteria 230V AC line supply voltage (phase with respect to ground) Overvoltage category (DIN VDE 0110/IEC Publ. 664) rated impulse voltage HAK Meter ( DIN VDE ) Class (DIN VDE 0675 Part6) MW Order No. Packing Weight 1 /1 unit /Unit kg B Lighting current arrester, Class B E DIN VDE / /A1/03/96 Acc. to E DIN VDE 0675, Part 6/11.89 and Part 6/A1/03.96 To incorporate power cables in the lighting protection potential bonding : 255V/50 60Hz Max. permissible operating voltage: 255V/50 60Hz Lighting current arrester Lighting impulse current (10/350) 75kA 2 5SD Single-pole 75kA Decoupling reactor 10/350µs For the energy-related coordination of lighting current arresters and surge arresters for a lighting impulse current 10/350µs. The concentrated inductance replaces the otherwise necessary cable length to provide decoupling between the lighting current arrester and the surge arrester : 500V/50 60Hz Rated voltage: 500V/50 60Hz : 15µH 20% 2 5SD Inductance: 15µH 20% 4 4/29

149 Modular Devices Lightning Current and Surge Arresters Selection and ordering data 5SD7 05 5SD7 05 lighting current and surge arresters C Surge arrester, Class C E DIN VDE / /A1/03/96 Acc. to E DIN VDE 0675, Part 6/11.89 and Part 6/A1/03.96 MW Order No. Packing Weight 1 /1 unit /Unit kg Surge arrester High monitoring reliability and safety using the Thermo Dynamic Control isolating arrester disconnector debvice with double monitoring function Fault indication using a red marking in the window Multi-function terminal for conductor and toothed bar connection : 275V AC/350V DC Max. permissible operating voltage: 275V AC/350V DC (8/20) 15kA Nominal discharge current (8/20) 15kA 1 5SD Single-pole Surge arrester with remote display 5SD7 052 Design as for 5SD7 052, however, with additional three-pole terminal to connect the remote display ( ) When the monitoring device responds (the defective arrester is isolated from the line supply as a result of overload), the remote signaling connections are switched via a floating changeover contact 1 5SD Single-pole Plug-in surge arrester 5SD7 052 Design as for 5SD7 052, however, in two sections, consisting of a base element and inserted protective block 1 5SD Single-pole Plug-in surge arrester with remote display 5SD7 054 Design as for 5SD7 054, however, with additional three-pole terminal to connect the remote display ( ) When the monitoring device responds (the defective arrester is isolated from the line supply as a result of overload), the remote signaling connections are switched via a floating changeover contact 1 5SD Single-pole 4/30

150 Modular Devices Lightning Current and Surge Arresters Selection and ordering data 5SD7 05 5SD7 05 lighting current and surge arresters Order No. Packing Weight 1 /1 unit MW /Unit kg Plug-in part for surge arrester, plug-in 1-pole 1 5SD /31

151 Modular Devices Lightning Current and Surge Arresters Dimension drawings 5SD7 05 5SD7 05 lighting current and surge arresters 5SD SD SD SD SD SD SD SD SD SD7 058 Busbar height /Plug-in part 4/32

152 Insulation and Monitoring Protection 5/0

153 Insulation and Monitoring Devices Technical description Insulation and load monitoring DIN VDE 0107/öVE-EN 7/1991 in medically used rooms according to DIN VDE 0107/öVE- EN 7/1991 The electrical equipment for medically used rooms, e.g. hospitals, doctors practices or also for home dialysis are subject to particular requirements. The health or even the life of patients can be endangered, if even minimal currents flow through the human body. This danger exists due to the use of electromedical equipment to treat, examine or monitor the patient. The electrical installations of medically used rooms must therefore incorporate additional protective measures. DIN VDE 0107/10.94 and öve-en 7/1991 specify certain types of power supplies for such rooms; the application group 2 specifies an IT network with insulation monitoring as the protective measure. With this protective measure, when the first fault 50kW 100kW occurs, the supply is not IT- disconnected and safe operation can continue. IT- The IT network incorporates an isolation transformer. The insulation resistance of the IT network should be continuously DINVDE0107/10. monitored, using a suitable 94 öve-en7/1991 insulation monitor and appropriate 2 test and signal combination unit. Furthermore the isolation IT transformer must be monitored for overload, in order to minimise the risk of a failure. IT IT 7XV9306 Protection by signal in the IT network The insulation monitor 7VC AA00 from the N System with only 4 modular spacings can be ( ) used universally in IT networks of IT- 24V to 230V AC at 50Hz to 60Hz 7VC1646-6AA00 (also in three-phase IT networks). N 4-TE In order to provide advance notice 24V 230V 50Hz 60Hz of an imminent insulation failure, IT- ( an LED indicates when the IT ) 60mm insulation resistance is already below 250 kω, therefore allowing - - 7XV9308 the installation to be tested 250KW and the appearing defect ( 3SB ) remedied. To further enhance the protection level, the operating value for the signal can be adjusted from 50 kω to 100 kω. Through the use of two measuring cables the existing connection to the IT network is also tested. If a fault to frame or earth now occurs, a very small fault current flows between the IT network and earth via the protective conductor. In this case, however, protection by disconnection may not be utilised. The fault current flows through the electronic evaluation unit in the insulation monitor calculating the insulation resistance. When the resulting value is below the set operating value the LED lights up and the signal relay switches on. Optic and acoustic signal Two potential-free contacts provide the insulation failure signals. The test and signal combination unit 7XV93 06 is connected to one of these contacts. The test and signal combination units must be installed in the medically used room, such that the fault signal can be perceived by the personnel. The test and signal combination unit has a sealed keypad and indicates the fault both acoustically and optically (yellow LED). The acoustic signal is a buzzer that can be cancelled by means of a button. Only if the insulation failure is rectified does the yellow signal LED go out. The test and signal combination unit is easily installed into a 60 mm mounting box. A maximum of two test and signal combination units are directly connectable to the insulation monitor. By using an additional coupling module 7XV93 08, signal and command devices (e.g. the 3SB range) are directly connectable. 5 5/1

154 Insulation and Monitoring Devices Technical description >N< DELTA flach 5TG311 1 < 0.7 x V N IP44 < 0.9 V N IP44 (%) ( 0.5 ) 7XV93 05 (ZSV) 2 - TüV - DELTAflach N- 7XV AD kVA 8kVA >N< ( ) ( ) 7XV TF STAB SIKUS N 3+6 7XV AC kVA AC24V 1. IT- 5A 4AC9928-0AA ( 16V) AC 24V 1.5A IT- 7XV (SV) 2 (AV) *) In Austria to öve-en7/1991 from the central safety power supply (ZSV)! 5/2

155 Insulation and Monitoring Devices Technical description The test and signal combination units The test and signal combination units match the appearance of the switch and socket outlet range DELTA flaeche electronic white. They can be flush mounted with IP 44 rating, using the 1 gang frame 5TG Also with the IP 44 degree of protection, the test and signal combination units are protected from liquid disinfectant. For surface mounting (IP 20) a suitable housing and frame is available. Overload signal for isolation transformer To assure utmost safety, besides monitoring the insulation it is also recommended that the singlephase isolation transformers be monitored. With the N System load monitor 7XV AD00 for isolation transformers from 3.15 kva up to 8 kva (single-phase transformers) two measurements can be derived: Overheating of the transformer is measured by thermistors embedded in the transformer windings. Overcurrent is recorded by the current transformer 7XV93 07 CT. The rising temperature of the windings due to overloading of the isolation transformer can only be signalled after a delay. Therefore it is essential that the load current is also recorded. Thereby, for example, an overload due to switching on powerful devices can be directly displayed. Cables and conductors should also be protected from overload. Standard overcurrent protection is not admitted, since by disconnection of the IT-network the supply to the electromedical equipment would also be lost. As with the insulation monitor the load monitor has potential free contacts for the overload signals. Using an additional coupling module 7XV93 08 signal and command devices can also be connected. Possible adjustments of the >N< type load monitor The load monitor has an electronic measurement switch for evaluating overtemperature and overcurrent. LEDs are used to indicate overtemperature, overcurrent and operational. A potentiometer is used for setting the pick up value of the overload in accordance with the transformer rated power. The operating delay for the signal is also adjustable. By the adjustable hysteresis (%) the overcurrent threshold (current value at which overcurrent signal is cancelled) can also be set. The signal on overload can be optically and acoustically indicated via a special test and signal combination unit 7XV It is of the same design as the test and signal combination unit for insulation monitors, and can be mounted adjacent to each other in DELTAflaeche design. The >N< type coupling module as binding element Insulation and load monitors are usually mounted in the same distribution board. If it is required that both protective devices operate with signal and command devices from the N System, the standards should also be complied with. The acoustic signal must be cancellable. When the test and signal combination unit is used, the cancelling is achieved by the electronics of the unit. The coupling module 7XV93 07 provides this facility for signal and command devices. The individual indicator lights, pushbuttons and only one buzzer are directly connected. Additional power must be provided by an AC 24 V safety transformer, for example the type 4AC AA with 1.5 A rated current (connection 16 V). Complete solution for STAB and SIKUS changeover protection The standard stipulates that monitoring of the power supply for the IT-network should be assured. To ensure safe changeover during a fault a so-called changeover protection is required. By changeover from the essential supply to supply 2 a disturbance free operation is assured. The essential supply is fed from a safety power supply (SV) and supply 2 from the general power supply (AV) *). By permanent monitoring for a drop in voltage the changeover to the essential supply is controlled. Changeover value: 0,7 x V N at operation without OP lighting. 0,9 x V N at operation with OP lighting. Within as little as 0.5 sec. the changeover protection switches and secures the supply such that the operation of electro-medical devices can continue. Due to the fast changeover time it also possible to include a pre-planned additional interruption free ZSV for the OP lighting. The connection of one, but also of two single-phase isolation transformers is possible. With the changeover protection certifiable by the technical inspectorate TöV of Bavaria, a concept has been devised in this respect for the planner/installer. The considerable experience in the building of distribution boards or hospitals also made a ontribution. High safety and eliability according to the new status of the standards are understandable. Thus additional warning information labels are not necessary. By using especially narrow cable entries the possibility of damaging cables is ruled out. All necessary switching devices, such as the 3TF contactor range as well as control relays, are installed adjacent to the insulation and load monitors on one 3+6 row chassis (H3/B1) from the STAB and SIKUS distribution board ranges. All incoming and outgoing cables are connected to terminal blocks and contactors with an AC3 rating are sized for the single-phase transformer ratings of kVA. For supplying the test and signal combination units or signal and command devices, an AC 24V safety transformer, 1.5A, is installed. An additional connection with secure separation for a building management system etc. is possible. 5 *) In Austria to öve-en7/1991 from the central safety power supply (ZSV)! 5/3

156 Insulation and Monitoring Devices 7VC16 46 >N< 7VC16 46 >N< Type insulation monitor DIN VDE 0107/10.94 Suitable for insulation monitoring according to DIN AC V, 50-60Hz IT- 250 kω VDE 0107/10.94 / öve- EN 7/ 100 kω 50 kω 1991 Permanent monitoring of DC 24V- 2 7XV insulation resistance for an ITnetwork with AC V, kω- 60Hz +/- Protected measurement 2 principle with superimposed DC 24 V measuring voltage 4 TE Test button for 42 kω test IT- - resistance +/- terminal screws, suitable for power-driver IT- Application Monitoring the insulation resistance in IT networks. Suitable for single and threephase isolation transformers. Indication of the IT-networks insulation resistance by LEDs. Benefit Early recognition of an imminent insulation failure below 250 kω by a fault signal The protection level can be increased by selecting an operating value of 100 kω or 50 kω Two test and signal combination units 7XV93 06 can be directly connected Connection monitoring of the network and PE conductors Two potential free changeover contacts for fault signal Space-saving only 4 modular widths / Order No. / Packing / Weight 1 / 1 Unit / Unit kg >N< / >N< type insulation monitor 7VC AA /11 For technical data, see page 5/11. 7/22 For dimensions and termination details, see page 7/22. R 2.8 For further insulation monitors for unearthed industrial networks, (E50001-K4502-A181-A1) see Catalog R 2.8 (E50001-K4502-A181-A1). 5/4

157 7XV93 >N< Insulation and Monitoring Devices 7XV93 >N< Type load monitor DIN VDE 0107/10.94 / öve- Signal and operation LED s EN 7/1991 Monitoring the transformer - winding temperature kva Monitoring the IT-networks - 2 7XV93 05current: 5-63A (adjustable) Operating delay: 0-10 s IT- 5 63A - (adjustable) ( ) : 0-10s ( ) 4 TE Application Temperature monitoring of the ( ) Overload monitoring protection for isolation transformers 7XV93 07 According to DIN VDE 0107/ / öve-en 7/1991 Suitable for single-phase transformers rated 3.15 ~ 8kVA windings using PTC thermistors. Monitoring the single-phase load current via the current transformer 7XV Benefit Freely adjustable overcurrent settings Preselectable hysteresis current value at which the overcurrent signal is cancelled Two test and signal combination units 7XV93 05 can be directly connected Two potential free contacts for overload signals Space-saving (only 4 modular widths) Functional test by test button / Order No. / Packing / Weight 1 / 1 Unit / Unit kg >N< / >N< type load monitor 7XV AD / Current transformer 8kVA for connection to load monitor for isolation transformers up to a rated power of 8kVA 7XV /15 5/18 7/22 For technical data, see pages 5/15 and 5/18. For dimensions and termination details, see page 7/22. 5/5

158 Insulation and Monitoring Devices 7XV93 7XV93 Test and signal combination unit DIN VDE 0107/10.94 / öve- Optically the unit matches the EN 7/1991 design of the switch and socket outlet range DELTA IP44 flaeche electronic white SMD- DELTA fl he Application DELTA Optical and acoustic display of operation and fault signals by buzzers and LEDs. With test and cancelling button ( for functional testing. ) For the optical and acoustic display of operation and fault signals according to DIN VDE 0107/10.94 / öve- EN 7/ mm ( For direct connection to ) insulation monitor and load - monitor without<r>additional power supply Benefit Due to compact measurements, it is suitable for the flush mounting into a standard 60mm box (switch and hollow-wall boxes) Mounting in cable dado trunking is also possible Easy-care sealed keypad Degree of protection IP44 for flush and surface mounting with suitable mounting frame and wall box. Micro electronics with SMD technology, therefore only low power consumption Combinable with switches and socket outlets of the DELTA flaeche electronic white design Multilanguage labelling strip in German, English, Italian, Spanish and Dutch enclosed (further languages on inquiry) / Order No. / Packing / Weight 1 / 1 Unit / Unit kg 0.8mm Terminals for cables with 0.8mm without frames 1) / for insulation monitor 1) 7XV ) / for load monitor 1) 7XV ) 2) / for power supply 1) 2) 7XV93 11 Frames for flush mounting - with gasket, electronic white IP x 84mm / IP 44, 1 fold 84 x 84mm 5TG Housing for surface mounting / electronic white 77 x 41 x 77mm / 1fold 77 x 41 x 77mm 5TG Frames for surface mounting housing / electronic white 75 x 75mm / 1fold 75 x 75mm 5TG /18 7/23 For technical data, see page 5/18. For dimensions, see page 7/22. Special units for operating panels on inquiry. 1) 4AC AA AC 16 V- 1) The 16 V AC connection is to be used when connecting to 4 AC ) AA safety transformer. 2) Delivery as of 8/96. 5/6

159 7XV93 08 >N< Insulation and Monitoring Devices 7XV93 08 >N< Type coupling module 3SB Power supply for coupling -/ module, indicator lights and buzzers is derived from an AC 24V external AC 24V safety transformer (see page 4/27) ( 4/39 ) +/- Potential free contacts with high loading capacity 4TE Application / Coupler for common operation of insulation and/or load - monitor with signal and For connection of signal and command devices, for example command devices for example the 3SB.. range to the insulation and/or load monitor in operating or monitoring panels Cancelling of the acoustic fault signal is possible without additional external circuit devices Suitable for mounting into panels due to compact design Benefit Facilitates wiring of signal and command devices Only one buzzer is required for all 4 acoustic fault signals, also only one acknowledgement pushbutton Shockproof +/- terminal screws also suitable for power driver Space-saving (only 4 modular widths) Same housing design as the insulation and load monitor Parallel operation from several panels is possible / Order No. / Packing / Weight 1 / 1 Unit / Unit kg >N< / >N< type coupling monitor 7XV /20 7/23 For technical data, see page 5/20. For dimensions and termination details, see page 7/23. 5/7

160 Insulation and Monitoring Devices 7XV XV93 10 Changeover protection DIN VDE 0107/10.94 / öve- EN , 1994; Fully wired for one or two EN 7/1991 IT IEC transformers MED-USE 107/10.94 Si VBG 4.5 Suitable for operation with OPlighting due to the adjustable STAB- changeover time <0.5 seconds SIKUS TöV and voltage threshold (0.9 x U N (6+3 ) 1) with the pre-planned additional 1 2 safety power supply ZSV taking kva over supply 2) < 0.5 All cabling installed and wired ( to terminal blocks ZSV 2 0. No fixing of warning label 9 x U N ) - necessary Panel covers contained in AC24V/1.5A scope of supply Application Weld-free switching from the essential supply to supply 3TF 2 using the 3TF range of contactors 2 Changeover protection MED- Complete with insulation USE 107/10/94Si for IT monitor and load monitor networks according to DIN VDE Fulfils all the demands of the 0107/10.94 /öve-en 7/1991 relevant standards: DIN VDE 0107/10.94 / öve-en 7/ 1991; DIN VDE /04. 94; Type tested mounting kit on chassis (6+3 rows) for STAB and SIKUS distribution board system 1) DIN VDE 0107/10.94 / öve-en 7/1991; DIN VDE 0660 Part 600/04.94; EN , 1994; IEC and the accident prevention standard VBG 4.5 Benefit Tested and certified by technical inspectance (TüV Bavaria) Simplified planning and installation Universal for transformers of kVA Time and cost saving Easier acceptance due to recognised testing Connection with secure isolation to building management system With AC 24 V/1.5 A safety transformer for optical and acoustic signals High protection level and long service life Chassis already supplied Narrow cable entries to avoid damaging cables No impaired function due to damaged cables / Order No. / Packing / Weight 1 / 1 Unit / Unit kg / Changeover Device 7XV /22 For connection diagrams, see page 5/22. 7/23 For dimension drawings, see page 7/23. 1) 1) Chassis for other distribution boards on inquiry. 5/8

161 IT- Insulation and Monitoring Devices Transformer for IT networks DIN VDE 0107 Version as isolation transformer IT- am gl/ggaccording to DIN VDE 0551 DIN VDE 0551 C Part 1 (EN ), with 1 (EN ) protection class I I Static screen between primary and secondary winding with ( Transformers for IT networks in isolated connection With thermistor protection ) U z 3%, i o 3%, ( ) 8 x I 1N medically used rooms according to DIN VDE 0107 (PTC thermistor) Short circuit voltage u z 3%, rated current io 3%, switching current (inrush) 8 x I IN Short circuit protection for the primary circuit of the transformer, with fuses having an operating class am/gl/gg or MCBs with C characteristic Single-phase transformers Center tapped for insulation monitoring I N 1 Rated power Voltage rise on Rated voltages Order No. Weight no-load Input Output 1 Unit P S(S1) kva U A % U 1N V U 2N V A kg AT TA71-3M , 32 4AT TA71-3M , 40 4AT TA71-3M AT TA71-3M AT TA71-3M AT TA71-3M 63 NS K For control device and indicator lights and other transformers, see Catalog NS K. 5/9 5

162 Insulation and Monitoring Devices 7VC16 46 >N< 7VC16 46 >N< Type insulation monitor, technical data DIN VDE 0100, 0107, 0110, 0609 According to DIN VDE 0100, 0107, 0110, VC AA00 IT- / Monitor IT network voltage V AC / Operating voltage V AC 230 (+10%/-20%) / Frequency Hz / Power consumption VA <5 ( 230V ) / < 5 (at 230V AC) mt ( ) / Device-fuse mt (installed) A 0.1 (5mm x 20mm) / DC voltage measurement V DC 24 / DC current measurement ma <0.2 / DC resistance kω 120 / AC resistance kω 120 / Mode DB ( ) (DIN VDE 0110) / Insulation group (DIN VDE 0110) (DIN VDE 0843 T.4) / Noise-free (DIN VDE 0843 T.4) C 4 / Severity 4 (DIN IEC 68 T.2...6) Resistance to vibration (DIN IEC 68 T.2...6) Hz , 20, 5gn / , 20 cycles, 5 gn / maximum external DC voltage ( ) (without damaging the devices, polarity as desired) V 200 / Auxiliary supply V AC 24 / approx. 24 ( 2 7XV93 06 ) ma 50 (sufficient for 2 test and signal combination units 7XV93 06) / Signalling contact: 2 x ( ) / 2 x changeover (potential free) / max. switching voltage V AC / V DC 250/300 / switching current A AC / A DC 10/5 / max. switching power VA AC / W DC 1250/ / Nominal capacity against earth µf 10 / Operating values kω 100/50 / Fault display kω <100/<50 / Fault about to occur kω <250 DIN IEC 144 Degree of protection to DIN and IEC 144 / Installed IP 30 / Terminals IP 10 / Storage temperature C / Ambient temperature C / Type of connection +/- M 3.5 self retaining +/- terminal screw M 3.5 with self stabilising terminal clamp / Terminal capacity mm /10

163 Insulation and Monitoring Devices 7VC16 46 >N< 7VC16 46 >N< Type insulation monitor, network connection IT- Connection of insulation monitor to the IT network 1/N/PE ~230V Single-phase supply network 1/N/PE ~230V 1/N/PE ~230V Single-phase supply network with central tap 1/N/PE ~230V 3/PE ~230V Three-phse supply network 3/PE ~230V 3/N/PE ~230V Three-phase supply network 3/PE ~230V 230 V The 230V AC supply voltage on the primary side can also be taken from an isolating transformer secondary. 5 5/11

164 Insulation and Monitoring Devices >N< 7XV XV93 04 ( / older model) Connection to >N< type insulation monitor 7XV XV93 02 ( / older model) 5/12

165 7VX93 48 >N< Insulation and Monitoring Devices 7VX93 48 >N< Type load monitor, technical data DIN VDE According to DIN VDE 0100, 0107, 0110, VX AD00 IT- / Monitor IT network current A ( ) / (adjustable) / Hysteresis for overcurrent sensitivity % ( ) / (adjustable) / Time delay for overcurrent signal s ( ) / (adjustable) (PTC) kω Operating value of thermistors (PTC) (PTC) kω Drop out value of thermistors (PTC) / Operating voltage V AC 230 (+10%/-20%) / Frequency Hz / Power consumption VA (V) <2.5 ( 230V ) / <2.5 (at 230) / Mode DB ( ) (DIN VDE 0110) / Insulation group (DIN VDE 0110) C / Nominal insulation voltage V 250 (DIN VDE 0110) / Test voltage (DIN VDE 0110) V 3000 (DIN VDE 0843 T.4) Noise-free (DIN VDE 0843 Part 4) 4 / severity 4 (DIN IEC 68 T.2...6) Resistance to vibration (DIN IEC 68 Parts 2...6) Hz , 20, 5gn / , 20 cycles, 5 gn / Auxiliary power V DC 12 ( 2 7XV93 05 ) ma 35 (sufficient for 2 test and signal combination unit 7XV93 05) / Signal contact: / Max. switching voltage V AC / V DC 250/300 / Switching current V AC / A DC 10/5 / Max. switching power VA AC / W DC 1250/ Contact type overcurrent signal Contact type over temperature 1 ( ) changeover (potential free) + 1 normally open 1 ( ) changeover (potential free) + 1 normally closed ( ) / Fault display (LED) / overcurrent, overtemperature DIN IEC 144 Degree of protection to DIN and IEC 144 / installations IP 30 / terminals IP 10 / Storage temperature C / Operating temperature C Type of connection +/- M3.5 self retaining +/- terminal screws M 3.5 with self stabilising terminal clamp / Terminal capacity / Conductor cross section mm (PTC) Max. connection to the PTC thermistor of the km 1.5mm / at 1.5mm 2 : isolating transformer km 2.5mm / at 2.5mm 2 : /13

166 Insulation and Monitoring Devices / Timing diagram / Hysterisis diagram 7XV AD00 Timing diagram 7XV AD00 7XV AD00 Timing diagram 7XV AD00 7XV AD00 Intrinsic response elay of the overcurrent section of the 7XV AD00 load monitor as a function of the line current 7XV AD00 Hysterisis diagram 7XV AD00 7XV AD00 Hysteresis of the overcurrent section of the 7XV AD00 load monitor as a function of the appropriate setting. 5/14

167 7XV93 48 >N< Insulation and Monitoring Devices 7XV93 48 >N< Type load monitor, block diagram 7XV AD00 5 5/15

168 Insulation and Monitoring Devices 7XV XV93 07 Current transformers, technical data / Primary current A AC 50 / Secondary current ma AC 50 7XV93 07 / Frequency Hz / Aperture for primary cable mm Ø3 DIN- / DIN-application class GKF / Ambient temperature C / Terminal capacity secondary circuit mm ( 6.3 x 0.8) / 1.5 (for push-on connectors 6.3 x 0.8) 7XV93 7XV93 Test and signal combination unit, technical data 7XV93 05, 7XV93 06, 7XV93 11 / Operation indicator LED ( ) DIN IP 20 Degree of protection according to DIN 40 IP ( ) / IP 44 with gasket (flush only) / Storage temperature C / Operating temperature C / Connection terminals mm / Labelling strip insert / In the following languages: (enclosed / ) / German, English, Spanish French, Italian, Dutch 7XV93 05 Only 7XV93 05 / Operating voltage V DC 12 (+10%/-20%) / Power consumption W <1.2 / < 1.2 at V DC/V AC 12/24 7XV93 06 Only 7XV XV93 11 Only 7XV93 11 (LED) / Fault display (LED) / Operating voltage V AC 24 (+10%/-20%) / Power consumption VA 1.2 / 1.2 at V AC 24 (LED) / Fault display (LED) ( ) ( ) / overcurrent (yellow),, overtemperature (yellow) ( ) / insulation failure (yellow) / Operating voltage V AC 12 (+10%/-20%) / Power consumption W <1.2 / < 1.2 at V DC/~V AC 12/24 (LED) / Fault display (LED) 1/2 ( ) / network 1/2-failure (yellow) 7XV93 08 >N< DIN VDE T XV93 08 According to DIN VDE 0100, 0107, 0110, 0435 Part 303, 0609 / Rated operational voltage V AC 50 7XV93 08 >N< type coupling module, technical data / AC voltage frequency Hz (DIN IEC 68 T.2...6) Vibration resistance (DIN IEC 68 Part 2...Part 6) Hz gn / , 20 cycles, 5gn DIN IEC 144 Degree of protection according to DIN and IEC 144 IP 10 / Storage temperature C / Ambient temperature C / Terminal screws +/- M 3.5 Captive +/- terminal screws M 3.5 with self-stabilising terminal clamps / Conductor cross section mm ) 7XV93 05/7XV93 06/7XV ) When only connecting text and signal combination units 7XV93 05/ 4AC AA AC 16V 7XV93 06/7XV91 11 and when using the 4AC AA safety transformer, the 16V AC transformer connection must be used! 5/16

169 Insulation and Monitoring Devices 7XV93 / 7XV93 Test and signal combination unit, construction/mounting A B C D E F G - 60mm 5VA mm IP x 84 5TG mm 1 75 x 75 5TG XV93 05/7XV XV93 06 IP20 IP44 Flush mounting IP 20 ir splaxh-proof IP 44 7XV93 05/7XV93 06/7XV93 11 Test and signal combination unit 7XV93 05/7XV93 06/ 7XV93 11 with labelling strips A Switch boxes 60mm with screw fixing e.g. 5VA3 12 B Support-frame for combination unit C Frame size 84mm, with gasket splash-proof, electronic white 1fold, 84 x 84, 5TG4 311 D or Frame size 75mm, electronic white 1fold, 75 X 75, 5TG2 201 E Test and signal combination unit 7XV93 05/7XV93 11 F Test and signal combination unit 7XV93 06 G Labelling strip delivered with unit H K L M N O 1 77 x 41 x 77 5TG mm 1 75 x 75 5TG XV93 05/7XV XV93 06 (IP 20) Surface mounting (IP 20) 7XV93 05/7XV93 06/7XV93 11 Text and signal combination unit 7XV93 05/7XV93 06/ 7XV93 11 with labelling strip H Surface mounting housing, electronic white 1fold, 77 x 41 x 77, 5TG2 086 K Support-frame for combination unit L Frame size 75mm, electronic white 1fold, 75 x 75, 5TG2 201 M Test and signal combination unit 7XV93 05/7XV93 11 N Test and signal combination unit 7XV93 06 O Labelling strip delivered with unit 5 5/17

170 Insulation and Monitoring Devices 7XV93 48 >N< 7XV93 48 >N< Type load monitor, block diagram L1 N PE IT IT-network isolation transfomer with thermistor ~230V Current transfomer 7XV93 07 IT IT-network ~ V 1) Fuses Load monitor Insulation monitor 7VC AA00 < R Test PE IT IT-network ~230V ~24V XV AD00 >ϑ >I Kaltleiter >ϑ Current transformer >I ~230V ~12V + _ PE Panel Auxiliary supply ~24V with signalling and control devices Test and signal combination unit Test and signal combination unit 7XV XV ~24V 5 <R 6 2 Test 3 4 ~24V 5 <R 6 2 Test 3 Test and signal Test and signal combination unit combination unit 7XV XV >I 6 >ϑ 1 2 Test >I 6 >ϑ 1 2 Test 3 7 >ϑ > I Operation LW <R Operation V LW ~24V ~24V 16 4 ISOW ISOW 5 9 R Betrieb 8 LW 10 >I 11 7 >ϑ 12 Test Coupling module 7XV Alarm Alarm > I50W Test Alarm Alarm aus PE I2-6285a 5/18

171 Insulation and Monitoring Devices Block diagram DIN VDE 0107/ / AV Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from AV / / Test- and signal combination units/ Signal- and cvontrol devices/building management system DIN VDE 0107/ / CSP Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from CSP / / Test- and signal combination units/ Signal- and cvontrol devices/building management system 5 5/19

172 Insulation and Monitoring Devices Block diagram DIN VDE 0107/ / AV Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from AV -F012) 1 1 (~24V) supply voltage for signal and command devices / test and signal 2 ~230V 2 combination units (~24V) PE 3 4 1) / Infeed 2 / supply 2 230V/50Hz / Text and signal combination unit / signaling and control devices INSULATION MONITOR TEST INSULATION MONITOR OPERATION INSULATION FUAULT / OVERCURRENT / OVERTEMPERATURE / ESSENTIAL SUPPLY OFF / ESSENTIAL SUPPLY OPERATION 2 / SUPPLY 2 OFF 2 / SUPPLY 2 EMERGENC OPERATION 2 / SUPPLY 2 FAILURE 2 / SUPPLY 2 READY 1 PE 2 Test PE 3 4 3) -F02 2) / Feed preferred (SV) / supply (SV) 230V/50Hz 8kVA Transformer up to 8kVA 230/230V 50Hz (PTC) / with PTC thermistor +ϑ / Prim. / Sec (ZLT) Central process control and instumentation technology (ZLT) INSULATION MONITOR OPERATION INSULATION FUAULT OVERCURRENT OVERTEMPERATURE / ESSENTIAL SUPPLY OFF / OPERATION 2 / SUPPLY 2 OFF / EMERGENC OPERATION 2 / SUPPLY 2 FAILURE / READY PE PE 1 2 PE IT- IT-supply network feeders 1) 2 (AV): IT - 2 (ZSV): IT - 1) Supply 2 (AV): e.g. for application without OP-lighting on IT-supply network Supply 2 (ZSV): e.g. for application with OP-lighting on IT-supply network 2) Securing the transformers according to manufacturs information 4AT -F01 / -F02 for Siemens transformer type 4AT 2.5kVA 25A gl/gg 3.15kVA 35A gl/gg 4.0kVA 35A gl/gg 5.0kVA 50A gl/gg 6.3kVA 50A gl/gg 8.0kVA 63A gl/gg 3) 1-2 I /20

173 Insulation and Monitoring Devices Block diagram DIN VDE 0107/ / AV Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from AV Fuses for short-circuit protection 2 "supply 2" "Prefered supply" AV SV ϑ Isolation transformer Current transformer > I > ϑ Load monitor / / Test- and signal combination units/ Signal- and cvontrol devices/building management system < R i Insulation monitor U < Voltage monitor t v 0,5s ZSV - OP-lighting IT- IT- supply network I DIN VDE 0107/ / CSP Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from CSP Fuses for short-circuit protection 2 "supply 2" "Prefered supply" ZSV SV ϑ Isolation transformer Current transformer > I > ϑ Load monitor < R i Insulation monitor / / Test- and signal combination units/ Signal- and cvontrol devices/building management system U < Voltage monitor IT- IT- supply network - OP-lighting I /21

174 Insulation and Monitoring Devices Block diagram DIN VDE 0107/ / AV Changeover protection for room in application group 2 to DIN VDE 0107/10.94 sections / supply 2 fed from AV / Feed preferred (SV) / supply (SV) 230V/50Hz 1) / Infeed 1) 2 / supply 2 230V/50Hz 2) -F01 -F02 2) 1 2 PE / Prim. 8kVA Transformer up to 8kVA 230/230V 50Hz + with PTC thermistor / Sec L1 L2 1 2 PE / Prim. 8kVA Transformer up to 8kVA 230/230V 50Hz + with PTC thermistor / Sec L1 L2 1 1 (~24V) 2 ~230V 2 PE 3 supply voltage for signal and command devices / test and signal combination units (~24V) 4 / Text and signal combination unit / signaling and control devices INSULATION MONITOR TEST INSULATION MONITOR OPERATION INSULATION FUAULT / OVERCURRENT / OVERTEMPERATURE / ESSENTIAL SUPPLY OFF / ESSENTIAL SUPPLY OPERATION 2 / SUPPLY 2 OFF 2 / SUPPLY 2 EMERGENC OPERATION 2 / SUPPLY 2 FAILURE 2 / SUPPLY 2 READY 1 PE 2 Test PE 3 4 (ZLT) Central process control and instumentation technology (ZLT) INSULATION MONITOR OPERATION INSULATION FUAULT OVERCURRENT OVERTEMPERATURE / ESSENTIAL SUPPLY OFF / OPERATION 2 / SUPPLY 2 OFF / EMERGENC OPERATION 2 / SUPPLY 2 FAILURE / READY PE PE 1 2 PE 3) IT- IT-supply network feeders 1) 2 (AV): IT - 2 (ZSV): IT - 1) Supply 2 (AV): e.g. for application without OP-lighting on IT-supply network Supply 2 (ZSV): e.g. for application with OP-lighting on IT-supply network 2) Securing the transformers according to manufacturs information 4AT -F01 / -F02 for Siemens transformer type 4AT 2.5kVA 25A gl/gg 3.15kVA 35A gl/gg 4.0kVA 35A gl/gg 5.0kVA 50A gl/gg 6.3kVA 50A gl/gg 8.0kVA 63A gl/gg 3) I /22

175 Insulation and Monitoring Devices Block diagram (MK 2417 ) Connecting the test and signal combination unit from (type MK 2417) Connecting the test and signal combination unit to >N< type insulation monitor, >N< type load monitor and power supply 1) 5SX A, C The secondary output of the 4AC AA safety transformer should be changed over to the 16V AC connection. 5 5/23