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Circuit Breakers
(16237 results)A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. 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.
| Part # | Manufacturer | Description | Availability | Pricing | Quantity |
|---|---|---|---|---|---|
 11YD3BFCircuit Breakers | Siemens | STARTER-MANUALLY OP,3 PH,17-22FL | In Stock | - | |
 3RV28110FD10Circuit Breakers | Siemens | TMCB UL489 FOR XFRMR S00 0.5A SC | In Stock | - | |
 3RV20314EA15Circuit Breakers | Siemens | MSP S2 CLASS 10 22-32A SCREW 1NO | In Stock | - | |
 3RV20214CA25Circuit Breakers | Siemens | MSP S0 17-22A AUX 1NO 1NC SPRING | In Stock | - | |
11TD3BDCircuit Breakers | Siemens | STARTER-MANUALLY OP,3 PH,5.5-8FL | In Stock | - | |
 3RV24214CA15Circuit Breakers | Siemens | MSP S0 FOR XFRMR 17-22A AUX 1NO+ | In Stock | - | |
 3RV24314PA10Circuit Breakers | Siemens | MSP S2 FOR XFRMR 28-36A SCREW | In Stock | - | |
3RV27110GD10Circuit Breakers | Siemens | TMCB UL489 S00 0.63A SCREW | In Stock | - | |
 3RV20110DA20Circuit Breakers | Siemens | Circuit-breaker Spring Connector 0.32A | In Stock | - | |
MRSK02ATCircuit Breakers | Siemens | MANUAL SW,REPLACEMENT SW,TOGGLE, | In Stock | - | |
114D3BDCircuit Breakers | Siemens | SWITCH-MANUALLY OP,3 PH,20 AMP,N | In Stock | - | |
 5SJ42358HG41Circuit Breakers | Siemens | MCB 5SJ4 2P 240V 35A 10K D-TRIP | In Stock | - | |
 3RV23111GC20Circuit Breakers | Siemens | CIRCUIT-BREAKER S00 6.3A NO OVER | In Stock | - | |
 3RV23314JC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S2 65A SCREW | In Stock | - | |
 3RV23314VC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S2 45A SCREW | In Stock | - | |
 3RV24110AA15Circuit Breakers | Siemens | MSP S00 FOR XFRM 0.11-0.16A AUX | In Stock | - | |
3RV24111KA15Circuit Breakers | Siemens | MSP S00 FOR XFRMR 9-12.5A AUX 1N | In Stock | - | |
11FD3BHCircuit Breakers | Siemens | STARTER-MANUALLY OP,3 PH,.35-.5F | In Stock | - | |
11VD3BGCircuit Breakers | Siemens | STARTER-MANUALLY OP,3 PH,9-12.5F | In Stock | - | |
11VD3BDCircuit Breakers | Siemens | STARTER-MANUALLY OP,3 PH,9-12.5F | In Stock | - | |
3RV27111GD10Circuit Breakers | Siemens | TMCB UL489 S00 6.3A SCREW | 1 | - | |
MMSKW2CCircuit Breakers | Siemens | MANUAL SW,TOGGLE,3-P,440-600VAC, | In Stock | - | |
3RV27111JD10Circuit Breakers | Siemens | TMCB UL489 S00 10A SCREW | 3 | - | |
3RV20111KA20Circuit Breakers | Siemens | MSP S00 9-12.5A SPRING | 1 | - | |
3RV20110FA20Circuit Breakers | Siemens | Circuit-breaker Spring Connector 0.5A | In Stock | - |
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