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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 |
|---|---|---|---|---|---|
 5SJ42187HG41Circuit Breakers | Siemens | MCB 5SJ4 2P 240V 15A 14K C-TRIP | 5 | - | |
 5SJ41208HG41Circuit Breakers | Siemens | MCB 5SJ4 1P 240V 20A 14K D-TRIP | 11 | - | |
5SJ41307HG41Circuit Breakers | Siemens | MCB 5SJ4 1P 240V 30A 14K C-TRIP | 1 | - | |
 3RV20214BA15Circuit Breakers | Siemens | MSP S0 14-20A AUX 1NO 1NC SCREW | 9 | - | |
 3RV20214NA10Circuit Breakers | Siemens | MSP S0 23-28A SCREW | 3 | - | |
 5SJ43187HG41Circuit Breakers | Siemens | MCB 5SJ4 3P 240V 15A 14K C-TRIP | 2 | - | |
3RV20214AA15Circuit Breakers | Siemens | MSP S0 11-16A SCREW W/AUX 1NO/1N | 8 | - | |
5SJ41207HG41Circuit Breakers | Siemens | MCB 5SJ4 1P 240V 20A 14K C-TRIP | 8 | - | |
 3RV20111EA15Circuit Breakers | Siemens | MSP S00 2.8-4A AUX 1NO 1NC SCREW | 6 | - | |
 3RV20111JA20Circuit Breakers | Siemens | Circuit-breaker Spring Connector 10A | 6 | - | |
 3RV20111GA10Circuit Breakers | Siemens | 3-Pole 690V 6.3A Motor Protection Circuit Breaker, IP20 | 28 | - | |
3RV20211AA10Circuit Breakers | Siemens | MSP S0 1.1 - 1.6A SCREW | 3 | - | |
3RV20111KA15Circuit Breakers | Siemens | MSP S00 9-12.5A AUX 1NO 1NC SCRE | 5 | - | |
3RV20111EA20Circuit Breakers | Siemens | Circuit Breaker For Motor Protection, 2.8-4A, 3-P, 6 Ka, 690V, 3Rv2 Series | 3 | - | |
3RV20111KA10Circuit Breakers | Siemens | 3-Pole 690V Motor Circuit Breaker, S00 9-12.5A, Screw Mount | 20 | - | |
3RV20114AA15Circuit Breakers | Siemens | MSP S00 11-16A AUX 1NO 1NC SCREW | 4 | - | |
3RV20211CA10Circuit Breakers | Siemens | MSP S0 1.8 - 2.5A SCREW | 5 | - | |
 3RV28111FD10Circuit Breakers | Siemens | Siemens Sirius 5 A 3P Motor Protection Circuit Breaker, 65 kA, 690 V | 5 | - | |
3RV20111JA15Circuit Breakers | Siemens | MSP S00 7-10A AUX 1NO 1NC SCREW | 5 | - | |
3RV20111DA15Circuit Breakers | Siemens | SWITCH_MOTOR_3RV2011-1DA15 | 6 | - | |
 3RV23110CC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S00 0.25A NO OVE | In Stock | - | |
 3RV23211BC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S0 2A NO OVERLOA | In Stock | - | |
 3RV21314BA10Circuit Breakers | Siemens | MSP S2 CLASS 10 14-20A SCREW AUT | In Stock | - | |
5SJ43188HG41Circuit Breakers | Siemens | MCB 5SJ4 3P 240V 15A 14K D-TRIP | In Stock | - | |
3RV23211FC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S0 5A NO OVERLOA | In Stock | - |
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