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Circuit Breakers

Manually or automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.

52 Products

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Siemens CIRCUIT BREAKER 6KA 1+N-P C20
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 1+N-P C20

Siemens CIRCUIT BREAKER 6KA 1+N-P C20, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
15.55 CHF
Siemens CIRCUIT BREAKER 6KA 1POL C16
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 1POL C16

Siemens CIRCUIT BREAKER 6KA 1POL C16, IP20

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
17.60 CHF
Siemens CIRCUIT BREAKER 10KA 1POL C16
Circuit Breakers

Siemens CIRCUIT BREAKER 10KA 1POL C16

Siemens CIRCUIT BREAKER 10KA 1POL C16, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
18.80 CHF
Siemens CIRCUIT BREAKER 6KA 1+N-P C16 Siemens CIRCUIT BREAKER 6KA 1+N-P C16
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 1+N-P C16

Siemens CIRCUIT BREAKER 6KA 1+N-P C16, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
20.10 CHF
Siemens CIRCUIT BREAKER 6KA 1+N-P C13 Siemens CIRCUIT BREAKER 6KA 1+N-P C13
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 1+N-P C13

Siemens CIRCUIT BREAKER 6KA 1+N-P C13, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
20.10 CHF
Siemens 5SY4110-7 circuit breaker 1
Circuit Breakers

Siemens 5SY4110-7 circuit breaker 1

Siemens 5SY4110-7, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
20.50 CHF
Siemens 5SY41046 5SY4104-6 Leitungsschutzschalter 4 A 230 V, 400 V circuit breaker 1
Circuit Breakers

Siemens 5SY41046 5SY4104-6 Leitungsschutzschalter 4 A 230 V, 400 V circuit breaker 1

Siemens 5SY41046 5SY4104-6 Leitungsschutzschalter 4 A 230...

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
21.05 CHF
Siemens 5SY41026 5SY4102-6 Leitungsschutzschalter 2 A 230 V, 400 V circuit breaker 1
Circuit Breakers

Siemens 5SY41026 5SY4102-6 Leitungsschutzschalter 2 A 230 V, 400 V circuit breaker 1

Siemens 5SY41026 5SY4102-6 Leitungsschutzschalter 2 A 230...

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
21.05 CHF
Siemens CIRCUIT BREAKER 10KA 1POL C4
Circuit Breakers

Siemens CIRCUIT BREAKER 10KA 1POL C4

Siemens CIRCUIT BREAKER 10KA 1POL C4, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
22.00 CHF
Siemens CIRCUIT BREAKER 10KA 1POL C2
Circuit Breakers

Siemens CIRCUIT BREAKER 10KA 1POL C2

Siemens CIRCUIT BREAKER 10KA 1POL C2, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
22.00 CHF
Siemens CIRCUIT BREAKER 10KA 1POL C6
Circuit Breakers

Siemens CIRCUIT BREAKER 10KA 1POL C6

Siemens CIRCUIT BREAKER 10KA 1POL C6, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
22.00 CHF
Siemens 5TT4101-0 circuit breaker Siemens 5TT4101-0 circuit breaker
Circuit Breakers

Siemens 5TT4101-0 circuit breaker

Siemens REMOTE SWITCH 1S AC230V 16A, 230 V

  • Battery included No
  • Maximum order quantity 1 pc(s)
  • Mounting depth 7 cm
  • Mounting method DIN rail mounted
  • Number of modular spacings 1
23.00 CHF
Siemens ISOLATOR 63A TP
Circuit Breakers

Siemens ISOLATOR 63A TP

Siemens ISOLATOR 63A TP, 10 A

  • Battery included No
  • Forced segregation No
  • Maximum order quantity 1 pc(s)
  • Mounting depth 7 cm
  • Number of modular spacings 3
24.05 CHF
Siemens AUXILIARY SWITCH 2S
Circuit Breakers

Siemens AUXILIARY SWITCH 2S

Siemens AUXILIARY SWITCH 2S, 400 V, Multicolour, 66 g, 82...

  • Battery included No
  • Maximum order quantity 1 pc(s)
  • Number of modular spacings 0.5
  • Number of NO contacts 2
  • Compliance certificates CE, RoHS
24.60 CHF
Siemens 5SY6110-7 circuit breaker 1
Circuit Breakers

Siemens 5SY6110-7 circuit breaker 1

Siemens 5SY6110-7, IP20

  • Additional equipment Yes
  • Ambient temperature range -25 - 55 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
24.95 CHF
Siemens 5SL6032-7 circuit breaker Miniature circuit breaker 1P+N
Circuit Breakers

Siemens 5SL6032-7 circuit breaker Miniature circuit breaker 1P+N

Siemens 5SL6032-7, Miniature circuit breaker, 6000 A,...

  • Compliance certificates CCC, CE, EAC, UKCA
  • Doesn't contain Halogen, Silicone
  • Power dissipation 2.9 W
  • Input voltage 230 V
  • Input current 32 A
25.85 CHF
Siemens CIRCUIT BREAKER 6KA 3POL B16
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 3POL B16

Siemens CIRCUIT BREAKER 6KA 3POL B16, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
28.80 CHF
Siemens GROUP SWITCH 20A 1GROUP Siemens GROUP SWITCH 20A 1GROUP
Circuit Breakers

Siemens GROUP SWITCH 20A 1GROUP

Siemens GROUP SWITCH 20A 1GROUP, 10 A

  • Battery included No
  • Forced segregation No
  • Maximum order quantity 1 pc(s)
  • Mounting depth 7 cm
  • Number of modular spacings 1
29.40 CHF
Siemens 5SL6020-7 circuit breaker Miniature circuit breaker 1P+N
Circuit Breakers

Siemens 5SL6020-7 circuit breaker Miniature circuit breaker 1P+N

Siemens 5SL6020-7, Miniature circuit breaker, 6000 A,...

  • Compliance certificates CCC, CE, EAC, UKCA
  • Doesn't contain Halogen, Silicone
  • Power dissipation 2.2 W
  • Input voltage 230 V
  • Input current 20 A
30.25 CHF
Siemens 5SL6016-7 circuit breaker Miniature circuit breaker 1P+N
Circuit Breakers

Siemens 5SL6016-7 circuit breaker Miniature circuit breaker 1P+N

Siemens 5SL6016-7, Miniature circuit breaker, 6000 A,...

  • Compliance certificates CCC, CE, EAC, UKCA
  • Doesn't contain Halogen, Silicone
  • Power dissipation 2.1 W
  • Input voltage 230 V
  • Input current 16 A
30.40 CHF
Siemens 5SY41017 5SY4101-7 Leitungsschutzschalter circuit breaker 1
Circuit Breakers

Siemens 5SY41017 5SY4101-7 Leitungsschutzschalter circuit breaker 1

Siemens 5SY41017 5SY4101-7 Leitungsschutzschalter, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
31.15 CHF
Siemens RCCB
Circuit Breakers

Siemens RCCB

Siemens RCCB, Residual-current device, Type A, 10 A,...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
32.55 CHF
Siemens CIRCUIT BREAKER 6KA 1+N-P C25 Siemens CIRCUIT BREAKER 6KA 1+N-P C25
Circuit Breakers

Siemens CIRCUIT BREAKER 6KA 1+N-P C25

Siemens CIRCUIT BREAKER 6KA 1+N-P C25, Miniature circuit...

  • Additional equipment Yes
  • Ambient temperature range -25 - 45 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 25 mm²
  • Connectable stranded conductor cross-section 0.75 - 25 mm²
32.65 CHF
Siemens CIRCUIT BREAKER 10KA 3POL B10
Circuit Breakers

Siemens CIRCUIT BREAKER 10KA 3POL B10

Siemens CIRCUIT BREAKER 10KA 3POL B10, IP20

  • Additional equipment Yes
  • Ambient temperature range -40 - 70 °C
  • Battery included No
  • Connectable solid conductor cross-section 0.75 - 35 mm²
  • Connectable stranded conductor cross-section 0.75 - 35 mm²
32.80 CHF
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