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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 |
|---|---|---|---|---|---|
 3RV20314VA10Circuit Breakers | Siemens | MSP S2 CLASS 10 35-45A SCREW | 5 | - | |
 3RV20314DA10Circuit Breakers | Siemens | MSP S2 CLASS 10 18-25A SCREW | 4 | - | |
 5SJ42208HG41Circuit Breakers | Siemens | MCB 5SJ4 2P 240V 20A 14K D-TRIP | 5 | - | |
 3RV20211EA10Circuit Breakers | Siemens | MSP S0 2.8 - 4A SCREW | 8 | - | |
 5SJ41167HG41Circuit Breakers | Siemens | MCB 5SJ4 1P 240V 16A 14K C-TRIP | 6 | - | |
 3RV20110JA20Circuit Breakers | Siemens | MSP S00 0.7-1A SPRING | 9 | - | |
 3RV23214BC10Circuit Breakers | Siemens | CIRCUIT-BREAKER S0 20A NO OVERLO | 3 | - | |
 3RV20110KA10Circuit Breakers | Siemens | Motor protection switch SIRIUS 3RV2 690 VAC 0.9. . .1.25 A IP 20, 3RV20110KA10, Siemens | 1 | - | |
 3RV20214EA15Circuit Breakers | Siemens | MSP S0 27-32A AUX 1NO 1NC SCREW | 10 | - | |
3RV20110GA10Circuit Breakers | Siemens | Motor protection switch SIRIUS 3RV2 690 VAC 0.45. . .0.63 A IP 20, 3RV20110GA10, Siemens | 4 | - | |
3RV20211JA10Circuit Breakers | Siemens | MSP S0 7 - 10A SCREW | 5 | - | |
 3RV20314JA10Circuit Breakers | Siemens | MSP S2 CLASS 10 54-65A SCREW | 3 | - | |
 3RV20214AA25Circuit Breakers | Siemens | MSP S0 11-16A AUX 1NO 1NC SPRING | 3 | - | |
3RV20110CA10Circuit Breakers | Siemens | MSP S00 0.18-0.25A SCREW | 1 | - | |
3RV20211FA10Circuit Breakers | Siemens | MSP S0 3.5 - 5A SCREW | 32 | - | |
5SJ42188HG41Circuit Breakers | Siemens | MCB 5SJ4 2P 240V 15A 14K D-TRIP | 4 | - | |
3RV20214FA10Circuit Breakers | Siemens | SIEMENS 3RV2021-4FA10 Manual Motor Starter, 40 Rated Amps, 34.0-40.0 Amps Range | 8 | - | |
3RV20114AA10Circuit Breakers | Siemens | 3-Pole 690V Motor Protection Circuit Breaker, S00, 11-16A, Screw | 16 | - | |
3RV20210GA10Circuit Breakers | Siemens | MSP S0 0.45 - 0.63A SCREW | 5 | - | |
 3RV27111DD10Circuit Breakers | Siemens | TMCB UL489 S00 3.2A SCREW | 7 | - | |
 3RV20111BA15Circuit Breakers | Siemens | MSP S00 1.4-2A AUX 1NO 1NC SCREW | 5 | - | |
3RV20111BA10Circuit Breakers | Siemens | 3-Pole 690V Circuit Breaker, 1.4-2A, Screw Mount, IP20 | 2 | - | |
3RV20111JA10Circuit Breakers | Siemens | 3-Pole 690V Motor Protection Circuit Breaker, S0, IP20 | 7 | - | |
3RV20111AA20Circuit Breakers | Siemens | Circuit-breaker Spring Connector 1.6A | 3 | - | |
3RV20111GA15Circuit Breakers | Siemens | MSP S00 4.5-6.3A AUX 1NO 1NC SCR | 7 | - |
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