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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 |
|---|---|---|---|---|---|
 3VA62105KP310AA0Circuit Breakers | Siemens | BRKR 3VA62 3P 100A 35KA ETU8-LSI | In Stock | - | |
 3VA51904ED311AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 90A 25KA FTFM NAV | In Stock | - | |
 3VA51204EF320AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 20A 25KA ATAM NUT | In Stock | - | |
 3VA51124EC311AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 125A 25KA FTAM NAV | In Stock | - | |
 5SY46018Circuit Breakers | Siemens | SUP PTOR 5SY4 3P+N 480V 1A 5K D- | In Stock | - | |
 3VA52175ED360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 175A 35KA FTFM AL | In Stock | - | |
 3VA51706EC410AA0Circuit Breakers | Siemens | BRKR 3VA51 4P 70A 65KA FTAM | In Stock | - | |
 3VA52126EF410AA0Circuit Breakers | Siemens | BRKR 3VA52 4P 125A 65KA ATAM | In Stock | - | |
3VA51305EC311AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 30A 35KA FTAM NAV | In Stock | - | |
 3VA52225EC311AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 225A 35KA FTAM NAV | In Stock | - | |
 3VA52707ED410AA0Circuit Breakers | Siemens | BRKR 3VA52 4P 70A 100KA FTFM | In Stock | - | |
 3VA51955ED121AA0Circuit Breakers | Siemens | BRKR 3VA51 1P 15A 35KA FTFM NAV | In Stock | - | |
 3VA51101BB360AB0Circuit Breakers | Siemens | MCSW 3VA51 3P 100A 65KA AUX HP | In Stock | - | |
3VA52805ED360AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 80A 35KA FTFM AL | In Stock | - | |
 LEDD4D003120CCircuit Breakers | Siemens | CONTACTOR,LTG,EH,N4X,60A,3NO,120 | In Stock | - | |
 3VA52257ED321AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 250A 100KA FTFM NA | In Stock | - | |
 3RV10110KA10Circuit Breakers | Siemens | SIEMENS 3RV10110KA10 CIRCUIT BREAKER, 0.9-1.25A | 5 | - | |
 3VA51031MU320AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 3A 65KA MCP LO NUT | In Stock | - | |
3VA51605EC311AA0Circuit Breakers | Siemens | BRKR 3VA51 3P 60A 35KA FTAM NAV | In Stock | - | |
 5SY45205Circuit Breakers | Siemens | SUP PTOR 5SY4 1P+N 240V 20A 7.5K | In Stock | - | |
 3VA51606ED211AA0Circuit Breakers | Siemens | BRKR 3VA51 2P 60A 65KA FTFM NAV | In Stock | - | |
 3VA51356ED300DD0Circuit Breakers | Siemens | BRKR 3VA51 3P 35A 65KA FTFM BOX | In Stock | - | |
 3RV21110JA10Circuit Breakers | Siemens | MSP S00 AUTO RESET 0.7-1A SCREW | In Stock | - | |
 3RV28111KD10Circuit Breakers | Siemens | TMCB UL489 FOR XFRMR S00 12.5A S | In Stock | - | |
 3VA52707EC321AA0Circuit Breakers | Siemens | BRKR 3VA52 3P 70A 100KA FTAM NAV | In Stock | - |
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