Siemens AG Miniature Circuit Breakers SENTRON. Configuration. Edition Manual. Answers for infrastructure and cities.

Transcription

1 Siemens AG 0 Miniature Circuit Breakers SENTRON Configuration Manual Edition 0 Answers for infrastructure and cities.

2 Siemens AG 0

3 Siemens AG 0 Miniature Circuit Breakers Introduction 5SL miniature circuit breakers 5SY and 5SP miniature circuit breakers 9 5SJ...-.KS miniature circuit breakers, with plug-in terminals 0 5SY miniature circuit breakers, +N in MW Additional components Busbars 5ST standard busbars 0 5ST3 busbars acc. to UL 508 5ST distribution blocks SIKclip wiring system 8 Configuration and dimensioning 3 5SJ...-.HG miniature circuit breakers acc. to UL 89 and IEC, and accessories 7 SHU 5SP3 main miniature circuit breakers 7 Circuit breaker terminals For further technical product information: Service & Support Portal: Product List: Technical specifications Entry List: Certificates / Characteristics / Download / FAQ / Manuals / Updates Siemens 0

4 Miniature Circuit Breakers Siemens AG 0 Introduction Overview Devices Page Application Standards Used in 5SL miniature circuit breakers For all 0.3 to 3 A applications with B, C and D tripping characteristics with a rated switching capacity of 500 A, 000 A and 0000 A acc. to EN Non-residential buildings Residential buildings Industry EN SY and 5SP miniature circuit breakers For all applications from 0.3 to 5 A with a rated breaking capacity of 0000 A and 5000 A acc. to EN Applications for universal current from 0.3 to 3 A, Version 5 ka, acc. to EN EN 0898-/- EN 097- UL 077 CSA. GB 093./. -- 5SJ...-.KS miniature circuit breakers, with plug-in terminals 9 For socket outlet and lighting circuits in all building installations. The plug-in terminals offer easy front connection for manual insertion of conductors, which considerably reduces mounting times. EN SY miniature circuit breakers, +N in MW 0 For socket outlet and lighting circuits in all building installations where a switchable neutral conductor is required. The miniature circuit breaker +N saves space in the distribution board. EN Additional components Auxiliary switches, fault signal contacts, shunt trips, undervoltage releases for higher system availability, RC units for personal safety and remote controlled mechanisms for remote switching. -- Busbars Busbars in 0 mm² and mm² save space in the distribution board and time during mounting. Busbars in 8 mm and 5 mm acc. to UL 508 and CSA. UL 508 Tripping time Minutes Configuration and dimensioning 8 Notes for configuration, dimensioning and extended technical specifications. 5SJ...-.HG miniature circuit breakers acc. to UL 89 and IEC, and accessories 3 Miniature circuit breakers can be used as "branch circuit protection" and are approved for the connection type "same polarity" and "opposite polarity" in the characteristics B, C and D acc. to UL 89, from 0.3 to 3 A. UL 89 Siemens 0

5 Siemens AG 0 Miniature Circuit Breakers Introduction Devices Page Application Standards Used in SHU 5SP3 main miniature circuit breakers 7 Voltage-independent selective main miniature circuit breakers (SHU) in the precounter area support downstream miniature circuit breakers by providing better current limitation. Non-residential buildings Residential buildings Industry DIN VDE Circuit breaker terminals 7 Circuit breaker terminals are used for short-circuit protection or for protection against overload and short circuits in auxiliary and control circuits downstream of control transformers Siemens 0 3

6 Miniature Circuit Breakers Siemens AG 0 5SL miniature circuit breakers Overview The 5SL miniature circuit breakers are intended for use up to ka/0 ka. These devices have system features that are characteristic of all Siemens miniature circuit breakers. They are also suitable for the quick and easy mounting of additional components, such as auxiliary switches and fault signal contacts. The 5SL miniature circuit breakers can also be combined with shunt trips, undervoltage releases and arc fault detection devices. To facilitate cable entry, the devices are equipped with rectangular terminals for the accommodation of pin busbars with cables up to 35 mm. The rated current range is between 0.3 A and 3 A. The 5SL miniature circuit breakers are available in characteristics B, C and D. Technical specifications 5SL3 5SL 5SL Standards EN Approvals Tripping characteristic B, C B, C, D Rated voltage U n V AC 30/00 Operational voltage Min. V AC/DC per pole Max. V AC 50/0 V DC/pole 0 ) 0 )) Rated making and breaking capacity I cn acc. to IEC/EN ka AC.5 0 I cu acc. to IEC/EN 097- ka AC.5 0 Insulation coordination Rated insulation voltage V AC 50/0 Pollution degree for overvoltage category /III Touch protection Acc. to EN 507 Yes Handle end position, sealable Yes Degree of protection IP0 with connected conductors, IP0, in the handle range with distribution cover CFC and silicone-free Yes Conductor cross-sections -wire - Solid ( 0 mm ) / stranded ( mm ) mm Finely stranded with non-insulated end sleeve mm Finely stranded with insulated end sleeve mm Finely stranded without end sleeve mm wire, same cross-section, same conductor type - Solid ( 0 mm ) / stranded ( mm ) mm Finely stranded with non-insulated end mm sleeve - Finely stranded with insulated end sleeve mm Finely stranded without end sleeve mm... -wire + busbar (pin thickness.5 mm) - Solid ( 0 mm ) / stranded ( mm ) mm Finely stranded with non-insulated end sleeve mm Finely stranded with insulated end sleeve mm... Terminals screw (Pozidriv) Terminal tightening torque Nm Mounting position Any Service life, on average, with rated load 0000 actuations Storage temperature C Ambient temperature C , occasionally +55, max. 95 % humidity , max. 95 % humidity Resistance to climate Acc. to IEC cycles ) The operational voltage 0 V DC/pole takes into account a battery charging voltage with a peak value of 7 V. ) Except: Characteristic C: A, characteristic D: A Siemens 0

7 Siemens AG 0 Miniature Circuit Breakers 5SL miniature circuit breakers Dimensional drawings 5SL3, 5SL, 5SL N N N N 8 I0_ P P+N P 3P 3P+N P Circuit diagrams Graphic symbols 5SL3, 5SL, 5SL N N N N 8 P P+N P 3P 3P+N P Siemens 0 5

8 Miniature Circuit Breakers Siemens AG 0 5SY and 5SP miniature circuit breakers Overview MCBs are used to protect systems and installations in buildings and for industrial applications. Used in industrial applications and plant engineering, miniature circuit breakers can be supplemented with additional components, such as auxiliary switches, fault signal contacts, shunt trips, undervoltage releases, remote controlled mechanisms, RC units, and arc fault detection devices. The devices are approved for worldwide use according to IEC standards for power supply systems up to 50/0 V AC. 7 V DC per pole is permitted in DC systems. For North America, there is an additional approval according to UL 077 for use as "supplementary protectors" in systems up to 80/77 V AC. For use in ship building, the devices also have numerous certifications according to shipping classifications; BV, DNV, GL and LRS. Information on this can be found on the Internet: Technical specifications 5SY 5SY 5SY5 5SY7 5SY8 5SP Standards EN EN EN EN EN 097- EN Approvals Rated voltage U n V AC 30/00 30/00 30/00 30/00 30/00 30/00 V DC /0/ ) Operational voltage Min. V AC/DC/pole Acc. to EN 0898-/- and EN 097- Max. V DC/pole 7 ) 7 ) 50 7 ) 7 ) 7 Max. V AC 50/0 50/0 50/0 50/0 50/0 50/0 Acc. to UL 077 and CSA C. No.35 Max. V AC 80Y/77 80/ /77 80/77 80/77 Max. V DC Breaking capacity ) I cn acc. to IEC/EN ka AC I cn acc. to IEC/EN ka DC I cu acc. to IEC/EN 097- ka AC ) ) ) ) ) 0 ka DC Acc. to UL077 and CSA C. No.35 ka AC Insulation coordination Rated insulation voltage V AC 50/0 V DC/pole Pollution degree for overvoltage category 3/III 3) Touch protection Acc. to EN 507 Yes Handle end position, sealable Yes Degree of protection Acc. to EN 059 IP0 with connected conductors, IP0 in the handle range with distribution cover CFC and silicone-free Yes Mounting Snap-on fixing system Yes -- Standard mounting rail and screw fixing -- Yes Terminals screw (Pozidriv) Tunnel terminals at both ends -- Yes Combined terminals at both ends Yes -- Terminal tightening torque Nm lb.in Conductor cross-sections Solid and stranded mm See 5SY conductor cross-sections Finely stranded, with end sleeve mm AWG conductors AWG (Cu 0/75 C I n 0 A; 0 C I n > 0 A) Mains connection AC Any DC Any ) Any Mounting position Any Service life Actuations 0000 On average, with rated load Actuations 0000, for 5SY5 at 0 A, 50 A and 3 A Ambient temperature C , max. 95 % humidity Storage temperature C Resistance to climate Acc. to IEC cycles Shock Acc. to IEC m/s 50 at ms half-sine Resistance to vibrations Acc. to IEC m/s 50 at Hz and 0 at 35 Hz ( sec) ) For detailed information see page 8. ) Ensure compliance with the specified polarity when connecting DC. 3) 5SY5.. -pole, degree of pollution at overvoltage category III. ) Except: C/D 0.3 A A 5) 5SY5.. -pole 880 V is not a standardized voltage acc. to EN 0898-, suitable for max. 000 V DC, if the four poles are connected in series. Siemens 0

9 Siemens AG 0 Miniature Circuit Breakers 5SY and 5SP miniature circuit breakers 5SY conductor cross-sections Number of connected conductors Solid ( 0 mm ) / stranded ( mm ) conductor at front (+ busbar ) at rear) ) Only conductors of the same cross-section and same conductor type ) When bus mounting with pin busbars 5ST3.., 5ST37.., the busbars are connected only in the rear terminal area 3) According to DIN 8-:990, there is no finger-safety when using end sleeves with 8 mm ) The general installation regulations must be observed; finely stranded conductors must be twisted before being inserted into the terminal; no individual copper fibers are allowed to project after connecting to the terminal. Finely stranded with insulated end sleeve 3) mm conductor at rear mm conductors at front ) mm (+ busbar ) at rear) conductors at rear ) ) mm Finely stranded without end sleeve ) conductor at front/ conductor at rear mm v: h: v: h: v:... h:... mm v: 5 h: v: 5 h: v: 5 h:... mm v: 35 h: conductor at front/ conductors at rear ) mm v: h: v: h: v:... h:... mm v: 5 h: v: 5 h:....5 conductors at front ) / conductor at rear mm v: v: v: h: v:... h:... conductors at front ) / conductors at rear ) mm v: h: v: h: v:... h:... Siemens 0 7

10 Miniature Circuit Breakers Siemens AG 0 5SY and 5SP miniature circuit breakers Dimensional drawings 5SY N N N N 8 I0_ P P+N P 3P 3P+N P 5SP I0_00 P P 3P P Circuit diagrams Graphic symbols 5SY, 5SY, 5SY7, 5SY8 N N N N 8 P P+N P 3P 3P+N P 5SP P P 3P P 5SY P P P 8 8 Siemens 0

11 Siemens AG 0 Miniature Circuit Breakers 5SJ...-.KS miniature circuit breakers with plug-in terminals Overview Miniature circuit breakers with plug-in terminals are used for the protection of socket outlets and lighting circuits with the most common rated currents of 0 to 0 A. Technical specifications 5SJ...-.KS Standards EN Approvals Rated voltage U n V AC 30/00 Operational voltage Min. V AC/DC/pole Max. V AC 50/0 V DC/pole 0 ) Rated making and breaking capacity Acc. to EN ka AC Insulation coordination Rated insulation voltage V AC 50/0 Pollution degree for overvoltage category /III Touch protection Acc. to EN 507 Yes Handle end position, sealable Yes Degree of protection Acc. to EN 059 IP0 with connected conductors, IP0, in the handle range with distribution cover CFC and silicone-free Yes Terminals Screwless terminals on the outgoing terminals for.5... mm Conductor cross-sections Top, plug-in terminals - Solid, stranded and finely stranded, without end sleeve mm Finely stranded, with end sleeve mm Bottom, tunnel terminal screw (Pozidriv) - Solid, stranded or finely stranded, mm with end sleeve Mounting position Any Service life, on average, with rated load 0000 actuations Ambient temperature C , occasionally +55, max. 95 % humidity Storage temperature C Resistance to climate Acc. to IEC cycles ) The operational voltage 0 V DC/pole takes into account a battery charging voltage with a peak value of 7 V. Dimensional drawings N N I0_ P P+N P 3P Circuit diagrams Graphic symbols N N P P+N P 3P Siemens 0 9

12 Miniature Circuit Breakers Siemens AG 0 5SY miniature circuit breakers, +N in MW Overview These miniature circuit breakers are used for the protection of systems and installations with switched neutral conductors in distribution boards with little space. They are just a single modular width. Compact busbars facilitate installation in space-saving distribution boards. Technical specifications 5SY30.. 5SY0.. Standards EN Approvals Rated voltage U n V AC 30 Operational voltage Min. V AC/DC Max. V AC 50 V 7 DC/pole Rated making and breaking capacity I cn ka AC.5 Insulation coordination Rated insulation voltage V AC 50 Pollution degree for overvoltage category /III Touch protection Acc. to EN 507 Yes Handle end position, sealable Yes Degree of protection Acc. to EN 059 IP0, with connected conductors, IP0 in the handle range with distribution cover CFC and silicone-free Yes Terminals screw (Pozidriv) Solid and stranded, top and bottom terminal mm Finely stranded, with end sleeve, top and bottom terminal mm Terminal tightening torque Nm Mounting position Any Service life On average, with rated load 0000 actuations at A/ A and 0 A: 8000 actuations Ambient temperature C , occasionally +55, max. 95 % humidity Storage temperature C Resistance to climate Acc. to IEC cycles Resistance to vibrations Acc. to IEC m/s 50 at Hz and 0 at 35 Hz ( sec) 0 Siemens 0

13 Siemens AG 0 Miniature Circuit Breakers 5SY miniature circuit breakers, +N in MW Dimensional drawings N N N N I0_ I0_3983 P+N N pole, right P+N N pole, left 5ST3 Pin spacing in MW Dimensions of side view in mm (approx.). 5ST37 Pin spacing in MW Dimensions of side view in mm (approx.). L L L3 I0_398 5, 9, I0_ , I0_38 0 5, 5ST33 5ST3 5ST35 5ST37 5ST37 5ST373 5ST375 Circuit diagrams Graphic symbols N N N P+N N pole, right N P+N N pole, left Siemens 0

14 Miniature Circuit Breakers Siemens AG 0 Additional components Overview The Siemens mounting concept supports the combination of all 5ST3 additional components with Siemens 5SY and 5SP miniature circuit breakers and with 5SU RCBOs. 5SL and 5SY0.. miniature circuit breakers are suitable for mounting auxiliary switches and fault signal contacts. Auxiliary switches can also be mounted on 5TE8 flush-mounting circuit breakers and 5SG7 MINIZED switch disconnectors. Auxiliary switches (AS) The auxiliary switch (AS) always signals the contact position of the miniature circuit breaker, regardless of whether the miniature circuit breaker was tripped manually or as the result of a fault. An additional version is also available for the switching of small currents and voltages for the control of programmable control systems (PLCs) acc. to EN 3-. The auxiliary switch with test button enables the testing of control circuits without the need to switch the miniature circuit breaker. Fault signal contacts (FC) The fault signal contact (FC) signals the automatic tripping of the miniature circuit breaker in the event of a fault, such as an overload or a short circuit. If the fault signal contact is activated, the contact position does not change if the miniature circuit breaker is tripped manually. Fault signal contacts with TEST and RESET buttons enable the testing of control circuits without the need to trip the miniature circuit breaker. The red RESET button integrated in the handle also indicates the automatic tripping of the MCB. The signal can be acknowledged manually using the RE- SET button. Shunt trips (ST) Shunt trips are used for the remote tripping of miniature circuit breakers. Undervoltage releases (UR) Undervoltage releases are integrated (e.g. in EMERGENCY-OFF loops), thus ensuring that the MCB trips in the event of an emergency, which, in turn, ensures disconnection of the control circuit according to EN 00. In the event that the voltage is interrupted or too low, it also trips, i.e. prevents activation of the MCB. Remote controlled mechanisms (RC) Remote controlled mechanisms are used for the remote ON/OFF switching of miniature circuit breakers and the remote ON switching of RC units, as well as the local manual switching of these devices. A blocking function permits maintenance work. In the event that a miniature circuit breaker or RC unit is tripped, an acknowledgment must be carried out prior to switching back on. The remote controlled mechanism has an operating mode selector switch with the functions: "Locked", "Manual" and "Remote Switching". Selector switch position: OFF: The remote controlled mechanism is switched off, blocked mechanically and can be sealed and/or locked. RC OFF: Only manual operation is possible. RC ON: Both manual and remote operation are possible. In the event that a device is tripped by a fault (RC units, miniature circuit breakers), the handle of the basic device and remote controlled mechanism switches to the OFF position. The operator must then acknowledge the tripping by resetting the remote controlled mechanism (OFF command) before it can be reactivated. This serves the safety of the installation or to protect personnel during maintenance work. In an RC unit/miniature circuit breaker combination, the RC unit is switched on asynchronously, i.e. prior to the miniature circuit breaker. The RC units for 5SY and 5SP can be switched ON via the MCB handle jumper using the supplied actuator attachment. There is no need to switch off the RC unit via the remote controlled mechanism as the MCB contacts ensure disconnection of the electrical circuit. The switching frequency is max. actuations per minute. If this actuation frequency is exceeded it may cause internal tripping of the remote controlled mechanism as a protection against possible overload. In this case, the remote controlled mechanism must be switched OFF at the function selector switch and not switched back on again for at least 5 minutes. More additional 5ST3... components, such as AS, FC, ST and UR, can be added to the right-hand side of the remote controlled mechanism in line with the Siemens mounting concept. RC units RC units can be combined with miniature circuit breakers of characteristic A, B, C and D. They then form a combination of RCCB and MCB for personnel, fire and line protection. The combinations can be tailored to meet individual requirements. For information on RC units see chapter "Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)" in Catalog LV 0. Siemens 0

15 Siemens AG 0 Miniature Circuit Breakers Additional components Technical specifications Auxiliary switches (AS) Fault signal contacts (FC) 5ST300, 5ST300-5ST30, 5ST30-5ST30, 5ST30-5ST303, 5ST303-5ST30, 5ST30-5ST305, 5ST305-5ST300, 5ST300-5ST30, 5ST30-5ST30, 5ST30- Standards EN 09; IEC/EN ; UL 077; CSA C. No. 35 Approvals Short-circuit protection Miniature circuit breaker or gg A fuse Contact load Min. 50 ma, V ma/5 V DC 50 ma, V Max ma/30 V DC V AC, AC-, NO A V AC, AC-, NO A V AC, AC-3, NC A V AC, AC-3, NC A -- 0 V DC, DC-3, NO+NC A -- 0 V DC, DC-3, NO+NC A -- 0 V DC, DC-3, NO+NC A V DC, DC-3, NO+NC A -- Service life, on average, with rated load 0000 actuations 0000 actuations 0000 actuations Conductor cross-sections mm AWG Terminals Terminal tightening torque Nm lb/in Mounting position Any Any Any Ambient temperature C Storage temperature Resistance to climate Acc. to IEC Cycles 8 Shock Acc. to IEC m/s 50 at ms half-sine Resistance to vibrations Acc. to IEC m/s 50 at Hz Undervoltage releases (UR) Shunt trips (ST) Remote controlled mechanisms (RC) 5ST30. 5ST3030 5ST303 5ST3050 Standards EN 097- Rated voltages U n V AC V DC, Operating range U n x U n x U n x U n Rated frequency f n Hz Response limits Tripping < U n Short-circuit protection Miniature circuit breakers B/C A or fuse gg A Minimum contact load 50 ma, V 50 ma, V -- Tripping operations Max. 000 Max Service life, on average, with rated load 0000 actuations 0000 actuations 0000 actuations 5000 at RC unit Conductor cross-sections mm AWG Terminals Terminal tightening torque Nm lb/in Mounting position Any Any Any Ambient temperature C Storage temperature C Resistance to climate Acc. to IEC Cycles 8 Shock Acc. to IEC m/s 50 at ms half-sine Resistance to vibrations Acc. to IEC m/s 50 at Hz Switching frequency -- actuations per minute Switching duration s -- < Minimum command duration s continuous command possible Rated power dissipation VA -- No power consumption, in switching operation Behavior in the event of control voltage failure -- No change Technical specifications for the RC units can be found in chapter "Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)" in Catalog LV 0. Siemens 0 3

16 Miniature Circuit Breakers Siemens AG 0 Additional components Dimensional drawings I0_a 8 I0_ ST300 5ST30 5ST30 5ST303 5ST30 5ST305 5ST300 5ST30 5ST30 5ST3030 5ST303 5ST300 5ST30 5ST30 5ST303 5ST30 5ST305 5ST3050 I0_003 I0_0033 I0_003 I0_ ST300-5ST30-5ST30-5ST303-5ST30-5ST305-5ST300-5ST30-5ST30- Siemens 0

17 Siemens AG 0 Miniature Circuit Breakers Additional components Circuit diagrams Graphic symbols Auxiliary switches (AS) Fault signal contacts (FC) ST300 5ST303 5ST300-5ST30 5ST30 5ST30-5ST30 5ST305 5ST30-5ST300 5ST300-5ST30 5ST30-5ST30 5ST30- Shunt trips (ST) Undervoltage releases (UR) Remote controlled mechanisms (RC) C C D U< D 3 3 D U v D M P N 3 ON OFF I0_07a P, N: Supply voltage : Return conductor : ON command 3: OFF command 5ST3030 5ST303 5ST300 5ST30 5ST30 5ST303 5ST30 5ST305 5ST3050 More information The Siemens mounting concept supports the combination of all 5ST3 additional components with miniature circuit breakers of the 5SY and 5SP series and RCBOs of the 5SU series. 5SL and 5SY0.. miniature circuit breakers are suitable for mounting auxiliary switches and fault signal contacts. Auxiliary switches can also be mounted on 5TE8 flush-mounting circuit breakers and 5SG7 MINIZED switch disconnectors. The diagram shows which additional components can be mounted on either the right or the left. 5SM 5SY / 5SP 5ST3 I0_83a or or or RC unit MCB RC AS FC AS FC 5SU AS FC AS FC FC AS or or or RCBO RC ST AS FC AS FC AS FC AS FC FC AS RC unit: Residual current unit MCB: Miniature circuit breaker RCBO: Residual current operated circuit breaker RC: Remote controlled mechanism UR: Undervoltage release ST: Shunt trip AS: Auxiliary switch FC: Fault signal contact UR or or or AS FC AS FC AS FC AS FC FC AS Mounting concept for RCBOs, see chapter, "Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)" in Catalog LV 0. Siemens 0 5

18 Miniature Circuit Breakers Busbars Siemens AG 0 5ST standard busbars Overview The busbar system with pin-type connections can be used for all 5SL, 5SJ...-.KS and 5SY miniature circuit breakers with or without mounted auxiliary switch (AS) or fault signal contact (FC). Busbars in 0 mm and mm versions are available. With bars that can be cut to length, the 5ST37 busbar system can be tailored to any requirements. The extremely flexible 5ST3 busbar system with fixed lengths also enables installation in any length as the busbars can be overlapped. No further need for time-consuming tasks, such as cutting, cutting to length, deburring, cleaning of cut surfaces and mounting of end caps. Any free pins on the busbars can be made safe by covering with touch protection. Further information on the bus-mounting of miniature circuit breakers with residual current operated circuit breakers see chapter "Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)" in Catalog LV 0. Technical specifications 5ST3 Standards EN 039- (VDE ): Busbar material SF-Cu F Partition material Plastic, Cycoloy 300, Heat-resistant over 90 C, flame-retardant, self-extinguishing, dioxin and halogen-free Rated operational voltage U c V AC 00 Rated current I n Cross-section 0 mm A 3 Cross-section mm A 80 Rated impulse withstand voltage U imp kv Test pulse voltage (./50) kv. Rated conditional short-circuit current I cc ka 5 Resistance to climate Constant atmosphere Acc. to DIN /83; 0/9; 55/0 Humid heat Acc. to IEC cycles Insulation coordination Overvoltage category III Pollution degree Maximum busbar current I S /phase Infeed at the start of the busbar - Cross-section 0 mm A 3 - Cross-section mm A 80 Infeed at the center of the busbar - Cross-section 0 mm A 00 - Cross-section mm A 30 Infeed at the start or end of the busbar S I0_3755 Infeed along the busbar or midpoint infeed 3 3 I0_375a S S S The sum of the outgoing current per branch (,, 3... n) must not be greater than the max. busbar current I S /phase. Siemens 0

19 Siemens AG 0 Miniature Circuit Breakers Busbars 5ST standard busbars Dimensional drawings 5ST3 Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.),5,5 I0_33 3, 5ST300 5ST330 5ST30 5ST30 5ST33 5ST33 5ST303 5ST333 5ST30 5ST305 5ST33 5ST335,5 L L I0_3 5, L L L L I0_3 9, 7,3 5ST30 5ST307 5ST308 5ST33 5ST337 5ST338 5ST30 5ST3 5ST3,5,5,5,5 L L L3 L L L3 L L L3 I0_38a 5, 9, 5ST33 5ST3 5ST35 5ST37 5ST3 5ST37 5ST38 5ST30,5,5,5,5 L L L3 L L L3 L L L3 I0_39a 9 0,3 5ST33 5ST3 5ST35 5ST38 5ST3 5ST37 5ST38 5ST350,5 L L L3 N L N L N L3 N I0_370 5,,8 5ST3 5ST3 5ST33,5 L L L3 N L N L N L3 N I0_37 9 3,3 5ST35 5ST35 5ST353 Siemens 0 7

20 Miniature Circuit Breakers Busbars Siemens AG 0 5ST standard busbars 5ST3 Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.),5 L L L3 L L L3 L L L3 L L I0_37 5, 5ST3 9,,5 L L L3 L L L3 L L L3 L L I0_ ST35 0,3 5ST37 Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.),5 I0_37 3 3,5 L L L,5 L I0_ ST3700 5ST370 5ST3730 5ST373 5ST370 5ST3703 5ST373 5ST3733 5ST370 5ST3705 5ST373 5ST3735 5ST370 5ST3707 5ST373 5ST3737 Single-phase Single-phase Two-phase Two-phase,5,5,5 L L L3 L L L3 L L L3 I0_ ST3708 5ST370 5ST3738 5ST370 5ST37 5ST37 5ST37 5ST37 5ST373 5ST37 5ST373 5ST37 L L L3 N I0_ ST375 5ST37 5ST375 5ST37 8 Siemens 0

21 NN LL3 NN NN LL3 NN Miniature Circuit Breakers Busbars 5ST standard busbars 5ST37 Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.) LL LL NN LL3 NN NN LL3 NN Siemens AG 0 5ST3770- I0_887,5 LL LL 5ST I0_888,9 L L L3 N L N L3 N 30, 8,3 30, I0_05, 5ST3770-,5,9 L L L3 N L N L3 N 30, 8,3 30. I0_058, 5ST I0_ , I0_38 0 5, 5ST37 5ST37 5ST373 5ST375 Siemens 0 9

22 Miniature Circuit Breakers Busbars Siemens AG 0 5ST3 busbars acc. to UL 508 Overview Products according to UL standards are used in North America, but also in several other countries. This is important in particular for exporting machines or electrical switchgear assemblies and equipment to the USA. Acceptance and delivery are possible only if the relevant UL standards are satisfied. The 5ST37 busbar system according to UL 508 and CSA is suitable for both universal use worldwide with all 5SY and 5SP miniature circuit breakers for "Supplementary Protection" certified according to UL 077 and for 3NW and 3NC fuse holders certified according to UL 5. Not approved for use in feeder circuits. The busbars are available in single-, two- and three-phase versions with different pin spacings and with two cross-sections 8 mm² and 5 mm². Infeed can be directly into the terminals of the miniature circuit breaker or through connection terminals. The connection terminals are available in two versions for direct infeed at the busbar or for infeed directly at the miniature circuit breaker/fuse holder. Pins that are not required can be covered with touch protection covers. Technical specifications 5ST37..-0HG 5ST37..-HG 5ST3770-0HG 5ST3770-HG Standards UL 508, CSA C. No. -M 95 Approvals UL 508 File No. E3803 CSA Operational voltage Acc. to IEC V AC 90 Acc. to UL 508 V AC 00 Rated conditional short-circuit current ka 0 Dielectric strength kv/mm 5 Surge strength kv > 9.5 Rated current A Maximum busbar current I S /phase Infeed at the start of the busbar A Infeed at the center of the busbar A Insulation coordination Overvoltage category III Pollution degree Short-circuit current load capability 0000 A RMS sym. 00 V for three connections 8 mm A RMS sym. for protection with Class J 75 A 5 mm A RMS sym. for protection with Class J 00 A Busbar cross-section mm Cu Infeed Any Conductor cross-sections AWG /0... mm (Cu 0 C) (Cu 75 C) Terminals screw (Pozidriv) Terminal tightening torque Nm lbs/in Infeed at the start or end of the busbar S I0_3755 Infeed along the busbar or midpoint infeed 3 3 I0_375a S S S The sum of the outgoing current per branch (,, 3... n) must not be greater than the max. busbar current I S /phase. 0 Siemens 0

23 8,5 Siemens AG 0 Miniature Circuit Breakers Busbars 5ST3 busbars acc. to UL 508 Dimensional drawings 5ST37 busbars Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.),5 I0_ L L L L,5 I0_0,5 3 5ST370-0HG 5ST3703-0HG 5ST3705-0HG 5ST3707-0HG,5,5,5,5 L L L3 L L L3 L L L3 I0_0 3 5ST370-0HG 5ST37-0HG 5ST37-0HG,5 I0_00,5 5 5,5 L L I0_ ST370-HG 5ST3705-HG,5,5 L L L3 I0_00 3 I0_008 9,5 5ST370-HG 5ST3750-0HG 8,5 I0_007 0 I0_00 5 9, ST378-0HG 5ST3770-0HG 5ST3770-HG 30 I0_0 5ST3 touch protection covers Pin spacing in MW (modular width; MW = 8 mm) Dimensions of side view in mm (approx.) 85, 3,8 R 0,5 5,7 3,8 7,8 7, I0_009 5ST355-0HG Siemens 0

24 Miniature Circuit Breakers Busbars Siemens AG 0 5ST distribution blocks Overview Distribution blocks for standard rail mounting Using distribution blocks it is possible to implement one, two, three and four-phase systems with a rated current of up to 00 A. This allows supply terminals to be divided into several load circuits with different cable cross-sections. The distribution blocks are made of thermoplastic with electrical and mechanical components, which enables their use under high thermal and mechanical load acc. to IEC Technical specifications Standards, certifications Degree of protection IP 0 Poles Approved cable Copper Conductor cross-section Inputs per pole - Solid/stranded conductor acc. to IEC Outputs per pole - Solid/stranded conductor acc. to IEC 5ST50 5ST50 5ST503 IEC mm² x.5 /.5 x 5/ 35 x 0 35/0 50 Neutral conductor mm² -- x 5/ Neutral conductor Large mm² 8 x.5 0/.5 0 x.5 0/.5 3 x 5/0 35 Small mm² -- 5 x.5 /.5 8 x.5 /.5 Large mm² -- x.5 0/.5 -- Small mm² -- x.5 /.5 -- Tightening torque Inputs lb/inch Nm.5.5 Plug-in connection PZ PZ Allen key (5 mm) Outputs Large lb/inch Nm Plug-in connection PZ PZ PZ Small lb/inch Nm Plug-in connection -- PZ PZ Operational voltage IEC, max. V Overcurrent protection Max. rated current A Rated peak withstand current (I pk ) ka. 0 Rated short-time withstand current (I cw s) ka 3.. Block dimensions (D x H x W) mm 88 x 9 x 8 75 x 9 x x 90 x 50 Siemens 0

25 Siemens AG 0 Miniature Circuit Breakers Busbars UL types Standards, certifications Degree of protection IP 0 Poles Approved cable Copper Wiring type Front/back Conductor cross-section Inputs - Solid and stranded conductor acc. to UL - Solid and stranded acc. to IEC - Solid and stranded conductor acc. to UL - Solid and stranded acc. to IEC Outputs - Solid and stranded conductor acc. to UL - Solid and stranded acc. to IEC - Solid and stranded conductor acc. to UL - Solid and stranded acc. to IEC - Solid and stranded conductor acc. to UL - Solid and stranded acc. to IEC Tightening torque ) Only stranded conductors. ) Copper jumper is tested for a rated current of 00 A 5ST distribution blocks 5ST50 5ST505 5ST507 5ST508 5ST5 UL 059 / UL 8E / IEC UL File No. E8007 / XCFR C. No / XCFR8 Factory and field wiring Pressure wire connector UL 8E / IEC UL File No. E8007 / XCFR Large AWG x 8 x 8 x 8 / 0 x / 0 ) x 3 / MCM mm² ) Small AWG -- x mm² Top AWG x 0 x x ) x x 0 mm² ).5.5 Medium AWG -- x 8 mm² Bottom AWG 3 x 8 -- x / x mm².5 -- x 35 /.5 Inputs lb/inch Nm Plug-in connection Allen key ( mm) Allen key (5 mm) Allen key ( mm) Allen key (8 mm) Outputs Large lb/inch Nm Plug-in connection PZ Standard screwdriver Small lb/inch Nm Plug-in connection PZ -- Standard screwdriver Ampere per pole, max. A Operational voltage UL, max. V 00 IEC, max. V 90 Overcurrent protection Required class J Max. rated current A SCCR RMS Sym A ka 00 Rated peak withstand current (I pk ) ka Rated short-time withstand current (I cw s) ka.9. Clearance Air inches 3 / 8 (9.5) (mm) Creepage distance inches / (.7) (mm) Fire class UL9V-0 Block dimensions (D x H x W) mm x 9 x 7 7 x 9 x 7 9 x 35 x 9 9 x 9 x 5 9 x 9 x 5 Connections With cable up to mm² With connector or cable up to mm² ) Lateral incoming feeder for parallel connection with copper bar (max. x 5 mm) Siemens 0 3

26 Miniature Circuit Breakers Busbars Siemens AG 0 5ST distribution blocks Dimensional drawings I0_805 I0_80 7 5ST50 5ST I0_807 I0_ ST507 5ST I0_ ST5 Siemens 0

27 Siemens AG 0 Miniature Circuit Breakers Busbars 5ST distribution blocks I0_80 8 I0_ ST50 5ST I0_ ST503 Siemens 0 5

28 Miniature Circuit Breakers Busbars Siemens AG 0 SIKclip wiring system Overview SIKclip is a fast wiring system that simplifies the connection of control switches: For mounting directly on the rear vertical CU busbar system Mounting via brackets on the rear of the DIN rail The -pole busbar can handle loads of up to 50 A, each individual contact up to 3 A. High degree of protection because each contact is locked individually. SIKclip is made of thermoplastic acc. to IEC and is suitable for high thermal loads. Note: To install the SIKclip wiring system in the ALPHA AS, the busbars must be installed in a vertical rear position, but not recessed. If the busbars are in a recessed position the cables will not reach the circuit breakers. Technical specifications 5ST5.. Compliance to standards EN 097-, EN Degree of protection IP0 Max. rated current I n A 50 at 0 C ambient temperature Max. rated output current I n A 3 A at 0 C ambient temperature Rated operational voltage U n V AC 00 Rated insulation voltage V AC 0 Test voltage kv.5, 50 Hz Connecting cables 0 A ( mm ), 3 A (0 mm ) Connecting cable type H07VK Ambient temperature C Siemens 0

29 Siemens AG 0 Miniature Circuit Breakers Busbars SIKclip wiring system Dimensional drawings 3,5 F mounting bracket transparent protective cover (0 x x 5) L L L3 N Ø8,5 7,5 F mounting bracket I0_ L L L3 N Ø8,5 7,5 9,8 (N) 0,3 (L3) 50,8 (L) 58,3 (L) transparent protective cover (0 x x 5) Siemens 0 7

30 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Overview Breaking capacity Particular demands are made on miniature circuit breakers with regard to breaking capacity. The values are standardized and are determined according to the test conditions of IEC/EN 0898-/- or DIN VDE 0-. The values of the rated breaking capacity I cn are 000, and For other test conditions, it is also possible to specify values higher than those stipulated in IEC/EN 0898-/- or DIN VDE 0-. One such standard is IEC/EN 097- or DIN VDE 00-0 for circuit breakers. 5SL3, 5SL, 5SY, 5SY, 5SY7, 5SY8, 5SY0 and 5SP miniature circuit breakers IEC/EN IEC/EN pole, -pole+n -, 3-, -pole, 3-pole+N -pole, -pole+n -, 3-, -pole, 3-pole+N AC 30 V AC 00 V AC 30 V AC 00 V I n [A] I cn [ka] I cn [ka] I cu [ka] I cu [ka] 5SL SL SL SY (without 5SY0) SY SY ) 5SY ) 5SY SY SP ) D50 and D3: I cu = 5 ka. ) D50 and D3: I cu = 0 ka. 5SY5 miniature circuit breakers Miniature circuit breakers, universal current IEC/EN IEC/EN pole -pole -pole -pole 30/00 V AC AC 00 V DC 0 V DC 0 V I n [A] I cn [ka] I cn [ka] I cn [ka] I cn [ka] 5SY Siemens 0

31 Siemens AG 0 Miniature Circuit Breakers Configuration and dimensioning Characteristic curves Tripping characteristics acc. to IEC/EN 0898-, DIN VDE I0_ Multiple of rated current Tripping characteristic A For limited semiconductor protection, protection of measuring circuits with transformers. Protection of circuits with tripping in 0. s acc. to DIN VDE 000-0, for long cable lengths. Tripping time Minutes Seconds I0_ Multiple of rated current Tripping characteristic B MCBs with this tripping characteristic are designed for universal use in socket outlet and lighting circuits. Proof of personal safety acc. to DIN VDE is not required. Tripping time Minutes Seconds I0_ Multiple of rated current Tripping characteristic C In lamp and motor circuits with higher starting currents, MCBs with tripping characteristic C are generally used. Tripping time Minutes Seconds I0_ Multiple of rated current Tripping characteristic D For electrical circuits with strong pulse-generating equipment, such as transformers or solenoid valves. Tripping time Minutes Seconds Siemens 0 9

32 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Tripping characteristics Tripping characteristics at ambient temperature 30 C Tripping characteristic Standards Thermal release Electromagnetic release Test currents: Test currents: Correction factors for the rated current at different ambient temperatures for 5SL and 5SL...-. Dependence of the permissible continuous load current on the ambient temperature for 5SL and 5SL...-. miniature circuit breakers Small Large Tripping time Hold Latest Tripping time test current test current I n 3 A I n > 3 A tripping I I t t I I 5 t A --.3 I n > h > h I n 0. s.5 I n < h < h 3 I n < 0. s B IEC/EN 0898-,.3 I n > h > h 3 I n 0. s DIN VDE 0-.5 I n < h < h 5 I n < 0. s C IEC/EN 0898-,.3 I n > h > h 5 I n 0. s DIN VDE 0-.5 I n < h < h 0 I n < 0. s D IEC/EN 0898-,.3 I n > h > h 0 I n 0. s DIN VDE 0-.5 I n < h < h 0 I n < 0. s (IEC 0898: 50 I n ) Reduction Factor.3.. I_359.0 Curve Curve 0.9 Curve Ambient Temperature [ C] The valid curve for the correction factor can be found in the following table. Curve for correction factor for 5SL and 5SL...-. miniature circuit breakers (curves, see diagram above) Rated current (A) Characteristic Pole type Valid curve for the correction factor for 5SL miniature circuit breakers B P/P P/P C P/P P/P Siemens 0

33 Siemens AG 0 Miniature Circuit Breakers Correction factors for the rated current at different ambient temperatures for 5SY Dependence of the permissible continuous load current on the ambient temperature for 5SY miniature circuit breakers (without 5SY0..) Configuration and dimensioning Dependence of the permissible continuous load current on the ambient temperature for 5SY0.. miniature circuit breakers.3 I_359.3 I_80 Reduction Factor.. Reduction Factor...0 Curve Curve.0 Curve Curve 0.9 Curve Curve Ambient Temperature [ C] Ambient Temperature [ C] The valid curve for the correction factor can be found in the following table. The valid curve for the correction factor can be found in the following table. Curve for correction factor for 5SY miniature circuit breakers (for curves, see left-hand diagram above) Rated current (A) Characteristic Pole type Valid curve for the correction factor for 5SY miniature circuit breakers A P/P P/P -- B P/P P/P C P/P P/P 3 3 D P/P P/P Curve for correction factor for 5SY0.. miniature circuit breakers (for curves, see right-hand diagram above) Rated current (A) Characteristic Valid curve for the correction factor for 5SY0.. miniature circuit breakers B C Siemens 0 3

34 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Correction factors for rated current if bundling If more than one electrical circuit is loaded in a series of miniature circuit breakers the resulting increase in ambient temperature affects the characteristic curve. In this case an additional correction factor, specific to the rated current of the miniature circuit breaker, must be taken into account. Number of MCBs > 7 Correction factor K Correction factors for rated current at different frequencies The tripping characteristic applies to a frequency of 50 Hz to 0 Hz. In the case of other frequencies, the following correction factors must be taken into account. In the overrange, the limits of the characteristic curves correspond to the correction factors of the thermal tripping operation. In the event of a short-circuit, the limits of the characteristic curves correspond to the correction factors of the magnetic tripping operation. Correction factors for rated breaking capacities I cn dependent on altitude above sea level of location Altitude above sea level / m of location Correction factor I cn / ka 5SY I cn / ka 5SY I cn / ka 5SY7 I cn / ka 5SP Thermal tripping operation Rated current I n (A) Magnetic tripping operation Correction factor for 0 Hz /3 Hz 50 Hz 5 Hz 00 Hz 000 Hz 5SY SP Rated current I n (A) Correction factor for 0 Hz /3 Hz 50 Hz 5 Hz 00 Hz 000 Hz 5SY SP Dependence of the reduction factor on the ambient temperature for 5SP miniature circuit breakers Curve for correction factor for 5SP miniature circuit breakers.3 (for curves, see diagram on the left) Reduction Factor.. I_8 Rated current (A) Characteristic C P P/3P/P D P 3 -- P/3P/P --.0 Curve Curve 0.9 Curve Ambient Temperature [ C] 3 Siemens 0

35 Siemens AG 0 Miniature Circuit Breakers Configuration and dimensioning Let-through I t values 5SL3 (AC) Characteristic B Characteristic C [A s] /3 5/3/0 0 0/3/ I0_88 [A s] /3/0/50/3 /0 8/0/3 3/, 0,5 I0_ , p [A] p [A] Let-through I t values 5SL (AC) Characteristic B Characteristic C [A s] /3 5/3/0 0 0/3/ I0_88 [A s] /3/0/50/3 /0 8/0/3 3/, 0,5 I0_ , p [A] p [A] Siemens 0 33

36 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Let-through I t values 5SY (AC) Characteristic B Characteristic C [ka s] 0 50/3 A 5/3/0 A 3//0 A 0 A I0_07 [ka s] /3 A 0/5/3/0 A 3/ A 8/0 A A 3/ A A, A I0_07 0 A 0 0 A 0,5 A ,3 A p [ka] p [ka] 3 Siemens 0

37 Siemens AG 0 Miniature Circuit Breakers Configuration and dimensioning Let-through I t values 5SY (AC) Characteristic A Characteristic B ) I $ " $ " $ " $! )! " # )! $ # ) ) $ & ) " )! ) ) $ ) % $ " t k s Peak Let-Through Current B80 B50/3 B5/3/0 B3//0 B0 B B B I0_8538a $ " ) 0 - " $ & " $ & " $ & " $ & F ) Prospective Short-Circuit Current p k Characteristic C Characteristic D [ka s] A 50/3 A 0/5/3/0 A 3/ A 8/0 A A 3/ A A, A A 0,5 A I_07a ) I! $ " $ " $ " " # $! )! ) # ) ) $ ) &! ) $ ) " )! ) ) $ ) ) % $ % 0-0,3 A $ " # )! ) p [ka] 8 $ " " $ & " $ & " $ & " $ & F ) Siemens 0 35

38 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Let-through I t values 5SP (AC) Characteristic B Characteristic C 0 3 I0_0a I t [ka s] 0 3 I_ /5 A 80 A /5 A 80 A I p [ka] Characteristic D I t [ka s] 0 3 I_ A 80 A I p [ka] 3 Siemens 0

39 Siemens AG 0 Miniature Circuit Breakers Configuration and dimensioning Let-through I t values 5SY5 (DC) Characteristic B Characteristic C A [k 0/ ) I $ " $ " $! ) # ) " ) #! )! $ ) ) & ) $ )! " ) % % " ) $ ) $ " ) # ) $! ) " [ka] " $ & " $ & " $ & F ) Let-through I t values 5SY8 (AC) Characteristic C Characteristic D ) I! $ " $ " $ " # $! ) " ) #! )! $ ) & ) $ )! " ) ) $ ) % % ) I! $ " $ " $ " # $! ) " )! ) # ) )! $ ) & ) $ ) " )! ) ) $ ) ) % % ) # ) $ " # ) $ "! ) $ "! ) $ " " $ & " $ & " $ & " $ & " $ &! F ) " $ & " $ & " $ & " $ & " $ &! F ) Siemens 0 37

40 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Let-through I t values 5SY7 (AC) Characteristic B Characteristic D ) I $ " $ " $ " # $! ) #! " )! $ ) ) $ ) % $ & ) I! $ " $ " $ " " # $! )! ) # ) ) $ ) &! ) $ ) " )! ) ) $ ) ) % % " $ & " $ & " $ & F ) Characteristic C $ " # )! ) ) I $ " # $! ) #! " )! $ ) & ) $ ) % $ ' $ "! " ) $ " ) $ ) " $ & " $ & " $ & " $ & F ) ) $ " # ) $ "! ) " $ & " $ & " $ & " $ & F ) 38 Siemens 0

41 t t Siemens AG 0 Miniature Circuit Breakers Configuration and dimensioning Let-through I t values 5SJ.-. KS (AC) Characteristic B Characteristic C in ka S Let-through current 00 0 B0 B0/3/ I0_8378 S Let-through current in ka 00 0 C/0 C0/3 I0_8377 0, 0, 0 Prospective current p in ka 0, 0, Prospective current p in ka 0 Let-through I t values 5SY30 (AC) Characteristic B Characteristic C s B0 B3 B0/5 B3/ B0 B I0_89 s I0_895 C5/3/ 0 C/0 C0/3 C/8 C C Prospective Short-circuit Current Prospective Short-circuit Current Siemens 0 39

42 Miniature Circuit Breakers Siemens AG 0 Configuration and dimensioning Let-through I t values 5SY0 (AC) Characteristic B Characteristic C t [kas] I0_37b 0 A 3 A 0/5 A 3/ A 0 A A I t [ka s] /3/ 0 A / 0 A 0/ 3 A /8 A A A I_377a p [ka] I p [ka] 0 Siemens 0

43 Siemens AG 0 Miniature Circuit Breakers Selectivity of miniature circuit breakers/fuses Distribution systems are usually set up as radial networks. An overcurrent protection device is required for each reduction of the conductor cross-section. This produces a series connection staggered according to rated currents, which should, if possible, be "selective". Selectivity means that, in the event of a fault, only the protective device that is directly next to the fault in the current circuit is tripped. This means that current paths in parallel can maintain a power flow. In the case of miniature circuit breakers with upstream fuses, the selectivity limit depends largely on the current limitation and tripping characteristics of the miniature circuit breaker and the melting I t value of the fuse. Selectivity limit values of 3NA miniature circuit breakers/fuses in ka, operational class gg Downstream miniature circuit breakers 5SY (without 5SY0) Configuration and dimensioning This produces different selectivity limits for miniature circuit breakers with different characteristics and rated breaking capacity. The following tables provide information on the short-circuit currents up to which selectivity exists between miniature circuit breakers and upstream fuses according to DIN VDE 03-. The values specified in ka are limit values that were determined under unfavorable test conditions. Under normal practical conditions, you can often expect considerably better values, depending on the upstream fuses. In the event of a short-circuit, there is selectivity between the 5SY, 5SY7, 5SP, 5SJ...-.HG.. miniature circuit breakers and melting fuses according to DIN VDE 03- up to the specified values in ka. Upstream fuses I n [A] ) A 0 A 5 A 35 A 50 A 3 A 80 A 00 A 5 A Characteristic B T T T T T T T T Characteristic C T T T T T T T T T T T T T T T SY...-5, -, 5SY7...-, 5SJ...-HG0 ) Characteristic A, B T T T T T T T T T SY...-7, 5SY7...-7, 5SJ...-7HG.. ) Characteristic C T T T T T T T T T T T T T T T T T r full selectivity up to rated breaking capacity I cn of the downstream protective device. ) In 0/5 V, 50 Hz systems, the selectivity limits are reduced by 0 %. The selectivity limits for adjustable releases apply to the maximum value, I n = rated current. I i r tripping current. ) The values specified for 5SJ...-.HG.. are not according to UL but are the manufacturer's specifications according to EN 097- and apply for voltage U e = 30 V ~. For available rated currents, see Catalog LV 0. Siemens 0