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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 24001 - 24096 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 251

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  • SIEMENS 5SY4320-5
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    5SY4320-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 20A, D=70 mm

  • SIEMENS 5SY4320-6
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    5SY4320-6

    CIRCUIT BREAKER 400V 10KA, 3-POLE, B, 20A, D=70MM

  • SIEMENS 5SY4320-6KK11
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    5SY4320-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 20A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4320-6-Z W09
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    5SY4320-6-Z W09

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 20 A, D=70 mm Multi-Unit Packaging (36 Stück)

  • SIEMENS 5SY4320-7
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    5SY4320-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 20 A, D=70 mm

  • SIEMENS 5SY4320-7KK11
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    5SY4320-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 20A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4320-7-Z W09
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    5SY4320-7-Z W09

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 20 A, D=70 mm Multi-Unit Packaging (36 Stück)

  • SIEMENS 5SY4320-8
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    5SY4320-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 20 A, D=70 mm

  • SIEMENS 5SY4325-5
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    5SY4325-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 25A, D=70MM

  • SIEMENS 5SY4325-6
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    5SY4325-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 25A, D=70 mm

  • SIEMENS 5SY4325-6KK11
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    5SY4325-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 25A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4325-7
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    5SY4325-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 25A, D=70 mm

  • SIEMENS 5SY4325-7KK11
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    5SY4325-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 25A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4325-8
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    5SY4325-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 25A, D=70 mm

  • SIEMENS 5SY4330-7
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    5SY4330-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 30 A, D=70 mm

  • SIEMENS 5SY4332-5
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    5SY4332-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 32A, D=70MM

  • SIEMENS 5SY4332-6
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    5SY4332-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 32 A, D=70 mm

  • SIEMENS 5SY4332-6KK11
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    5SY4332-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 32A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4332-7
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    5SY4332-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 32 A, D=70 mm

  • SIEMENS 5SY4332-7KK11
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    5SY4332-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 32A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4332-8
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    5SY4332-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 32 A, D=70 mm

  • SIEMENS 5SY4335-7
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    5SY4335-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 35 A, D=70 mm

  • SIEMENS 5SY4340-5
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    5SY4340-5

    CIRCUIT BREAKER 400V 10KA, 3-POLE, A, 40A, D=70MM

  • SIEMENS 5SY4340-6
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    5SY4340-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 40A, D=70 mm

  • SIEMENS 5SY4340-6KK11
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    5SY4340-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 40A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4340-7
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    5SY4340-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 40A, D=70 mm

  • SIEMENS 5SY4340-7KK11
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    5SY4340-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 40A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4340-8
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    5SY4340-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 40A, D=70 mm

  • SIEMENS 5SY4345-7
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    5SY4345-7

    CIRCUIT BREAKER 400V 10KA, 3-POLE, C, 45A, D=70MM

  • SIEMENS 5SY4350-5
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    5SY4350-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 50 A, D=70 mm

  • SIEMENS 5SY4350-6
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    5SY4350-6

    CIRCUIT BREAKER 400V 10KA, 3-POLE, B, 50A, D=70MM

  • SIEMENS 5SY4350-6KK11
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    5SY4350-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 50A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4350-7
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    5SY4350-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 50 A, D=70 mm

  • SIEMENS 5SY4350-7KK11
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    5SY4350-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 50A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4350-8
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    5SY4350-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 50 A, D=70 mm

  • SIEMENS 5SY4360-7
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    5SY4360-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 60A, D=70 mm

  • SIEMENS 5SY4363-5
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    5SY4363-5

    Miniature circuit breaker 400 V 10kA, 3-pole, A, 63 A, D=70 mm

  • SIEMENS 5SY4363-6
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    5SY4363-6

    CIRCUIT BREAKER 400V 10KA, 3-POLE, B, 63A, D=70MM

  • SIEMENS 5SY4363-6KK11
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    5SY4363-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, B, 63A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4363-7
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    5SY4363-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 63 A, D=70 mm

  • SIEMENS 5SY4363-7KK11
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    5SY4363-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 3-POLE, C, 63A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4363-8
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    5SY4363-8

    Miniature circuit breaker 400 V 10kA, 3-pole, D, 63 A, D=70 mm

  • SIEMENS 5SY4380-6
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    5SY4380-6

    Miniature circuit breaker 400 V 10kA, 3-pole, B, 80 A, D=70 mm

  • SIEMENS 5SY4380-7
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    5SY4380-7

    Miniature circuit breaker 400 V 10kA, 3-pole, C, 80 A, D=70 mm

  • SIEMENS 5SY4401-5
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    5SY4401-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 1A, D=70MM

  • SIEMENS 5SY4401-7
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    5SY4401-7

    Miniature circuit breaker 400 V 10kA, 4-pole, C, 1A, D=70 mm

  • SIEMENS 5SY4401-7KK11
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    5SY4401-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 1A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4401-8
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    5SY4401-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 1A, D=70MM

  • SIEMENS 5SY4402-5
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    5SY4402-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 2A, D=70MM

  • SIEMENS 5SY4402-7
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    5SY4402-7

    Miniature circuit breaker 400 V 10kA, 4-pole, C, 2A, D=70 mm

  • SIEMENS 5SY4402-7KK11
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    5SY4402-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 2A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4402-8
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    5SY4402-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 2A, D=70MM

  • SIEMENS 5SY4403-5
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    5SY4403-5

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

  • SIEMENS 5SY4403-7
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    5SY4403-7

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

  • SIEMENS 5SY4403-7KK11
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    5SY4403-7KK11

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

  • SIEMENS 5SY4403-8
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    5SY4403-8

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

  • SIEMENS 5SY4404-5
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    5SY4404-5

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

  • SIEMENS 5SY4404-7
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    5SY4404-7

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

  • SIEMENS 5SY4404-7KK11
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    5SY4404-7KK11

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

  • SIEMENS 5SY4404-8
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    5SY4404-8

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

  • SIEMENS 5SY4405-7
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    5SY4405-7

    Miniature circuit breaker 400 V 10kA, 4-pole, C, 0.5A, D=70 mm

  • SIEMENS 5SY4405-7KK11
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    5SY4405-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 0.5A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4405-8
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    5SY4405-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 0.5A, D=70MM

  • SIEMENS 5SY4406-5
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    5SY4406-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 6A, D=70MM

  • SIEMENS 5SY4406-6
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    5SY4406-6

    CIRCUIT BREAKER 400V 10KA, 4-POLE, B, 6A, D=70MM

  • SIEMENS 5SY4406-6KK11
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    5SY4406-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, B, 6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4406-7
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    5SY4406-7

    Miniature circuit breaker 400 V 10kA, 4-pole, C, 6 A, D=70 mm

  • SIEMENS 5SY4406-7KK11
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    5SY4406-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4406-8
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    5SY4406-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 6A, D=70MM

  • SIEMENS 5SY4408-5
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    5SY4408-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 8A, D=70MM

  • SIEMENS 5SY4408-7
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    5SY4408-7

    CIRCUIT BREAKER 400V 10KA, 4-POLE, C, 8A, D=70MM

  • SIEMENS 5SY4408-7KK11
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    5SY4408-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 8A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4408-8
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    5SY4408-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 8A, D=70MM

  • SIEMENS 5SY4410-5
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    5SY4410-5

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

  • SIEMENS 5SY4410-6
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    5SY4410-6

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

  • SIEMENS 5SY4410-6KK11
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    5SY4410-6KK11

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

  • SIEMENS 5SY4410-7
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    5SY4410-7

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

  • SIEMENS 5SY4410-7KK11
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    5SY4410-7KK11

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

  • SIEMENS 5SY4410-8
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    5SY4410-8

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

  • SIEMENS 5SY4413-5
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    5SY4413-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 13A, D=70MM

  • SIEMENS 5SY4413-6
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    5SY4413-6

    CIRCUIT BREAKER 400V 10KA, 4-POLE, B, 13A, D=70MM

  • SIEMENS 5SY4413-6KK11
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    5SY4413-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, B, 13A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4413-7
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    5SY4413-7

    CIRCUIT BREAKER 400V 10KA, 4-POLE, C, 13A, D=70MM

  • SIEMENS 5SY4413-7KK11
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    5SY4413-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 13A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4413-8
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    5SY4413-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 13A, D=70MM

  • SIEMENS 5SY4414-7
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    5SY4414-7

    CIRCUIT BREAKER 400V 10KA, 4-POLE, C, 0.3A, D=70MM

  • SIEMENS 5SY4414-7KK11
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    5SY4414-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 0.3A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4414-8
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    5SY4414-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 0.3A, D=70MM

  • SIEMENS 5SY4415-5
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    5SY4415-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 1.6A, D=70MM

  • SIEMENS 5SY4415-7
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    5SY4415-7

    CIRCUIT BREAKER 400V 10KA, 4-POLE, C, 1.6A, D=70MM

  • SIEMENS 5SY4415-7KK11
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    5SY4415-7KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, C, 1.6A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4415-8
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    5SY4415-8

    CIRCUIT BREAKER 400V 10KA, 4-POLE, D, 1.6A, D=70MM

  • SIEMENS 5SY4416-5
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    5SY4416-5

    CIRCUIT BREAKER 400V 10KA, 4-POLE, A, 16A, D=70MM

  • SIEMENS 5SY4416-6
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    5SY4416-6

    Miniature circuit breaker 400 V 10kA, 4-pole, B, 16A, D=70 mm

  • SIEMENS 5SY4416-6KK11
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    5SY4416-6KK11

    MINIATURE CIRCUIT-BR. 400V 10KA, 4-POLE, B, 16A FOR RAILWAY APPLICATIONS

  • SIEMENS 5SY4416-7
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    5SY4416-7

    Miniature circuit breaker 400 V 10kA, 4-pole, C, 16A, D=70 mm

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