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  1. Catalog
  2. SIEMENS
  3. Low-Voltage Controls and Distribution
  4. Circuit breakers
Circuit breakers 3RV Circuit breakers 3VA Circuit breakers 3VF Circuit breakers 3VL Circuit breakers 3VT Circuit breakers 3WA Circuit breakers 3WL Circuit breakers 5SJ, 5SL, 5SY, 5SP Circuit breakers 5SK Circuit breakers 5SM, 5SV Circuit breakers 5SU Circuit breakers Circuit breakers Accessories

Circuit breakers Items 23905 - 24000 of 25224 ⍾ SIEMENS ⍾ Last modified Jun 5, 2026

Catalog up 3RV Circuit breakers 3VA Circuit breakers 3VF Circuit breakers 3VL Circuit breakers 3VT Circuit breakers 3WA Circuit breakers 3WL Circuit breakers 5SJ, 5SL, 5SY, 5SP Circuit breakers 5SK Circuit breakers 5SM, 5SV Circuit breakers 5SU Circuit breakers Circuit breakers Accessories

Circuit breakers ⍾ Page 250

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  • SIEMENS 5SY4225-7
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    5SY4225-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 25A, D=70 mm

  • SIEMENS 5SY4225-7KK11
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    5SY4225-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, C, 25A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4225-8
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    5SY4225-8

    Miniature circuit breaker 400 V 10kA, 2-pole, D, 25A, D=70 mm

  • SIEMENS 5SY4230-7
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    5SY4230-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 30 A, D=70 mm

  • SIEMENS 5SY4232-5
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    5SY4232-5

    CIRCUIT BREAKER 400V 10KA, 2-POLE, A, 32A, D=70MM

  • SIEMENS 5SY4232-6
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    5SY4232-6

    Miniature circuit breaker 400 V 10kA, 2-pole, B, 32 A, D=70 mm

  • SIEMENS 5SY4232-6KK11
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    5SY4232-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, B, 32A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4232-7
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    5SY4232-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 32 A, D=70 mm

  • SIEMENS 5SY4232-7KK11
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    5SY4232-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, C, 32A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4232-8
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    5SY4232-8

    Miniature circuit breaker 400 V 10kA, 2-pole, D, 32 A, D=70 mm

  • SIEMENS 5SY4235-7
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    5SY4235-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 35 A, D=70 mm

  • SIEMENS 5SY4240-5
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    5SY4240-5

    Miniature circuit breaker 400 V 10kA, 2-pole, A, 40A, D=70 mm

  • SIEMENS 5SY4240-6
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    5SY4240-6

    Miniature circuit breaker 400 V 10kA, 2-pole, B, 40A, D=70 mm

  • SIEMENS 5SY4240-6KK11
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    5SY4240-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, B, 40A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4240-7
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    5SY4240-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 40A, D=70 mm

  • SIEMENS 5SY4240-7KK11
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    5SY4240-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, C, 40A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4240-8
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    5SY4240-8

    Miniature circuit breaker 400 V 10kA, 2-pole, D, 40A, D=70 mm

  • SIEMENS 5SY4245-7
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    5SY4245-7

    CIRCUIT BREAKER 400V 10KA, 2-POLE, C, 45A, D=70MM

  • SIEMENS 5SY4250-5
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    5SY4250-5

    CIRCUIT BREAKER 400V 10KA, 2-POLE, A, 50A, D=70MM

  • SIEMENS 5SY4250-6
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    5SY4250-6

    Miniature circuit breaker 400 V 10kA, 2-pole, B, 50 A, D=70 mm

  • SIEMENS 5SY4250-6KK11
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    5SY4250-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, B, 50A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4250-7
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    5SY4250-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 50 A, D=70 mm

  • SIEMENS 5SY4250-7KK11
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    5SY4250-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, C, 50A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4250-8
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    5SY4250-8

    Miniature circuit breaker 400 V 10kA, 2-pole, D, 50 A, D=70 mm

  • SIEMENS 5SY4260-7
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    5SY4260-7

    CIRCUIT BREAKER 400V 10KA, 2-POLE, C, 60A, D=70MM

  • SIEMENS 5SY4263-5
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    5SY4263-5

    CIRCUIT BREAKER 400V 10KA, 2-POLE, A, 63A, D=70MM

  • SIEMENS 5SY4263-6
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    5SY4263-6

    CIRCUIT BREAKER 400V 10KA, 2-POLE, B, 63A, D=70MM

  • SIEMENS 5SY4263-6KK11
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    5SY4263-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, B, 63A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4263-7
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    5SY4263-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 63 A, D=70 mm

  • SIEMENS 5SY4263-7KK11
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    5SY4263-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 2-POLE, C, 63A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4263-8
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    5SY4263-8

    CIRCUIT BREAKER 400V 10KA, 2-POLE, D, 63A, D=70MM

  • SIEMENS 5SY4280-6
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    5SY4280-6

    CIRCUIT BREAKER 400V 10KA, 2-POLE, B, 80A, D=70MM

  • SIEMENS 5SY4280-7
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    5SY4280-7

    Miniature circuit breaker 400 V 10kA, 2-pole, C, 80 A, D=70 mm

  • SIEMENS 5SY4301-5
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    5SY4301-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 1 A, D=70 mm

  • SIEMENS 5SY4301-7
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    5SY4301-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 1A, D=70 mm

  • SIEMENS 5SY4301-7KK11
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    5SY4301-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 1A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4301-8
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    5SY4301-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 1 A, D=70 mm

  • SIEMENS 5SY4302-5
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    5SY4302-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 2A, D=70 mm

  • SIEMENS 5SY4302-6
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    5SY4302-6

    MCB 400V AC 10kA, 3-pole, B, 2A, T=70mm

  • SIEMENS 5SY4302-7
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    5SY4302-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 2A, D=70 mm

  • SIEMENS 5SY4302-7KK11
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    5SY4302-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 2A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4302-8
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    5SY4302-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 2A, D=70 mm

  • SIEMENS 5SY4303-5
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    5SY4303-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 3 A, D=70 mm

  • SIEMENS 5SY4303-6
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    5SY4303-6

    MCB 400V AC 10kA, 3-pole, B, 3A, T=70mm

  • SIEMENS 5SY4303-7
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    5SY4303-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 3 A, D=70 mm

  • SIEMENS 5SY4303-7KK11
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    5SY4303-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 3A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4303-8
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    5SY4303-8

    CIRCUIT BREAKER 400V 10KA, 3-POLE, D, 3A, D=70MM

  • SIEMENS 5SY4304-5
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    5SY4304-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 4A, D=70MM

  • SIEMENS 5SY4304-6
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    5SY4304-6

    MCB 400V AC 10kA, 3-pole, B, 4A, T=70mm

  • SIEMENS 5SY4304-7
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    5SY4304-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 4A, D=70 mm

  • SIEMENS 5SY4304-7KK11
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    5SY4304-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 4A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4304-8
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    5SY4304-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 4A, D=70 mm

  • SIEMENS 5SY4305-5
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    5SY4305-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 0.5A, D=70MM

  • SIEMENS 5SY4305-7
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    5SY4305-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 0.5A, D=70 mm

  • SIEMENS 5SY4305-7KK11
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    5SY4305-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 0.5A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4305-8
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    5SY4305-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 0.5 A, D=70 mm

  • SIEMENS 5SY4306-5
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    5SY4306-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 6A, D=70MM

  • SIEMENS 5SY4306-6
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    5SY4306-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 6 A, D=70 mm

  • SIEMENS 5SY4306-6KK11
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    5SY4306-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4306-6-Z W09
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    5SY4306-6-Z W09

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 6 A, D=70 mm Multi-Unit Packaging (36 Stück)

  • SIEMENS 5SY4306-7
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    5SY4306-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 6 A, D=70 mm

  • SIEMENS 5SY4306-7KK11
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    5SY4306-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4306-7-Z W09
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    5SY4306-7-Z W09

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 6 A, D=70 mm Multi-Unit Packaging (36 Stück)

  • SIEMENS 5SY4306-8
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    5SY4306-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 6 A, D=70 mm

  • SIEMENS 5SY4308-5
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    5SY4308-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 8A, D=70MM

  • SIEMENS 5SY4308-7
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    5SY4308-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 8A, D=70 mm

  • SIEMENS 5SY4308-7KK11
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    5SY4308-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 8A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4308-8
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    5SY4308-8

    CIRCUIT BREAKER 400V 10KA, 3-POLE, D, 8A, D=70MM

  • SIEMENS 5SY4310-5
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    5SY4310-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 10A, D=70 mm

  • SIEMENS 5SY4310-6
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    5SY4310-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 10A, D=70 mm

  • SIEMENS 5SY4310-6KK11
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    5SY4310-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 10A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4310-7
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    5SY4310-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 10A, D=70 mm

  • SIEMENS 5SY4310-7KK11
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    5SY4310-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 10A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4310-7-Z W09
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    5SY4310-7-Z W09

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 10A, D=70 mm Multi-Unit Packaging (36 Stück)

  • SIEMENS 5SY4310-8
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    5SY4310-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 10A, D=70 mm

  • SIEMENS 5SY4311-7
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    5SY4311-7

    CIRCUIT BREAKER 400V 10KA, 3-POLE, C, 5A, D=70MM

  • SIEMENS 5SY4313-5
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    5SY4313-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 13A, D=70MM

  • SIEMENS 5SY4313-6
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    5SY4313-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 13 A, D=70 mm

  • SIEMENS 5SY4313-6KK11
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    5SY4313-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 13A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4313-7
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    5SY4313-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 13 A, D=70 mm

  • SIEMENS 5SY4313-7KK11
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    5SY4313-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 13A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4313-8
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    5SY4313-8

    CIRCUIT BREAKER 400V 10KA, 3-POLE, D, 13A, D=70MM

  • SIEMENS 5SY4314-7
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    5SY4314-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 0.3A, D=70 mm

  • SIEMENS 5SY4314-7KK11
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    5SY4314-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 0.3A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4314-8
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    5SY4314-8

    CIRCUIT BREAKER 400V 10KA, 3-POLE, D, 0.3A, D=70MM

  • SIEMENS 5SY4315-5
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    5SY4315-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 1.6A, D=70MM

  • SIEMENS 5SY4315-7
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    5SY4315-7

    CIRCUIT BREAKER 400V 10KA, 3-POLE, C, 1.6A, D=70MM

  • SIEMENS 5SY4315-7KK11
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    5SY4315-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 1.6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4315-8
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    5SY4315-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 1.6A, D=70 mm

  • SIEMENS 5SY4316-5
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    5SY4316-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 16A, D=70 mm

  • SIEMENS 5SY4316-6
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    5SY4316-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 16A, D=70 mm

  • SIEMENS 5SY4316-6KK11
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    5SY4316-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 16A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4316-7
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    5SY4316-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 16A, D=70 mm

  • SIEMENS 5SY4316-7KK11
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    5SY4316-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 16A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4316-8
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    5SY4316-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 16A, D=70 mm

  • SIEMENS 5SY4318-7
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    5SY4318-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 15 A, D=70 mm

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SIEMENS ⍾ Featured

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