Circuit Breakers
A circuit breaker is an electrical safety device that automatically interrupts the flow of current in an overloaded circuit, in the event of ground faults, or during short circuits. When a fault is detected, protective relays trigger the breaker to “trip,” stopping the current flow. Unlike fuses, which must be replaced after blowing, circuit breakers can be reset and reused. These devices are commonly used in both residential and industrial settings.
Circuit breakers are designed to protect electrical circuits from damage due to overcurrent or short circuits. Their primary function is to cut off current once a fault is detected by the system’s protective relays.
Explore our wide selection of circuit breakers and switches, ideal for controlling or interrupting current flow in electrical distribution circuits, either automatically or manually.
Showing 1–9 of 566 results
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1SDA057387R1 ABB Circuit Breaker 120V 2000A 3 Poles
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1SDA065770R1 ABB Circuit Breaker 600V 2000A 3 Poles
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1SDA065877R1 ABB Circuit Breaker 600V 2000A 3Poles
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1SDA100719R1 ABB Circuit Breaker 690V 1000A 3 Poles
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403744 Legrand Circuit Breaker 400VAC 63A 2-Poles
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403753 Legrand Circuit Breaker 400VAC 10A 3-Poles
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403757 Legrand Circuit Breaker 400VAC 25A 3-Poles
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403773 Legrand Circuit Breaker 400VAC 20A Poles
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404120 Legrand Circuit Breaker 400VAC 2A 3-Poles