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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 |
|---|---|---|---|---|---|
 3VA52606ED320AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 60A 65KA FTFM NUT | In Stock | - | |
 3VA52177EF312AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 175A 100KA ATAM 10 | In Stock | - | |
 3VA52156GC410AA0Circuit Breakers | Siemens | BRKR 3VA52 4P 150A 65KA FTAM 100 | In Stock | - | |
 3VA51356ED560AA0Circuit Breakers | Siemens | BRKR 3VA51 1(2)P 35A 50KA FTFM A | In Stock | - | |
 3VA52455ED360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 45A 35KA FTFM AL | In Stock | - | |
 3VA51104ED360AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 100A 25KA FTFM AL | In Stock | - | |
 3VA52151MH310AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 150A 100KA MCP HI | In Stock | - | |
 5SY46107Circuit Breakers | Siemens | SUP PTOR 5SY4 3P+N 480V 10A 5K C | In Stock | - | |
 5SY41405Circuit Breakers | Siemens | SUP PTOR 5SY4 1P 240V 40A 7.5K A | In Stock | - | |
3VA52206EC312AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 200A 65KA FTAM 100 | In Stock | - | |
 5SJ42057HG42Circuit Breakers | Siemens | MCB 5SJ4 2P 480/277 0.5A 10K C-T | In Stock | - | |
5SY41057Circuit Breakers | Siemens | Circuit Breaker; Supplementary; 1-P; 0.5A; C Curve; 277 VAC; DIN Mnt; UL 1077 | In Stock | - | |
 3VA52606ED321AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 60A 65KA FTFM NAV | In Stock | - | |
 5SJ41357HG41Circuit Breakers | Siemens | MCB 5SJ4 1P 240V 35A 14K C-TRIP | In Stock | - | |
 3VA52806ED360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 80A 65KA FTFM AL | In Stock | - | |
 3RV20214BA40Circuit Breakers | Siemens | MSP S0 14-20A RING LUG | In Stock | - | |
 3VA52157EF360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 150A 100KA ATAM AL | In Stock | - | |
 3RV20324KA10Circuit Breakers | Siemens | CIRCUIT BREAKER. SCREW-TYPE. 73 | In Stock | - | |
3VA52356ED322AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 35A 65KA FTFM 100 | In Stock | - | |
 5SJ41328HG42Circuit Breakers | Siemens | MCB 5SJ4 1P 277V 32A 10K D-TRIP | In Stock | - | |
3VA52117ED362AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 110A 100KA FTFM 10 | In Stock | - | |
 3VA52115EC360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 110A 35KA FTAM AL | In Stock | - | |
 3VA51454ED221AA0Circuit Breakers | Siemens | BRKR 3VA51 2P 45A 25KA FTFM NAV | In Stock | - | |
5SY46407Circuit Breakers | Siemens | SUP PTOR 5SY4 3P+N 480V 40A 5K C | In Stock | - | |
 3VA51126ED321AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 125A 65KA FTFM NAV | In Stock | - |
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