Circuit Breakers

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 Number Manufacturer Description Quantity Price Option
2800839 Phoenix Contact CIR BRKR THRMMAG 4A 277VAC 50VDC 0 $49.95
2800850 Phoenix Contact CIR BRKR THRMMAG 4A 277VAC 50VDC 0 $49.95
2800844 Phoenix Contact CIR BRKR 12A 277VAC 50VDC 1 $49.95
2800835 Phoenix Contact CIR BRKR 500MA 277VAC 50VDC 1 $49.95
2800855 Phoenix Contact CIR BRKR 12A 277VAC 50VDC 2 $49.95
2800836 Phoenix Contact CIR BRKR THRMMAG 1A 277VAC 50VDC 2 $49.95
2800847 Phoenix Contact CIR BRKR THRMMAG 1A 277VAC 50VDC 2 $49.95
2800849 Phoenix Contact CIR BRKR THRMMAG 3A 277VAC 50VDC 2 $49.95
2800845 Phoenix Contact CIR BRKR 16A 277VAC 50VDC 2 $49.95
2800837 Phoenix Contact CIR BRKR THRMMAG 2A 277VAC 50VDC 3 $49.95