Circuit Breakers

Circuit breakers are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit breaker manufacturers including ABB, Carling Technologies, Eaton, E-T-A Circuit Breakers, Phoenix Contact, Sensata, Siemens, TE Connectivity & more.

Industrial circuit breakers are protective switching devices designed to automatically interrupt electrical current when overloads, short circuits, or fault conditions occur within industrial power systems. They help safeguard equipment, wiring, and personnel by quickly disconnecting affected circuits before damage can spread throughout an automation or distribution network. Built for demanding industrial environments, these devices provide dependable protection, operational continuity, and simplified maintenance across a wide range of electrical installations.

Applications: Industrial circuit breakers are commonly used in control panels, motor control centers, power distribution systems, manufacturing facilities, process automation equipment, and industrial infrastructure to protect electrical circuits and critical machinery from fault-related damage.

Common Types: Common industrial circuit breaker types include miniature circuit breakers (MCBs), molded case circuit breakers (MCCBs), air circuit breakers (ACBs), motor protection circuit breakers (MPCBs), and electronic circuit breakers for advanced protection and monitoring requirements.

Selection requirements: Choosing an industrial circuit breaker requires evaluating voltage and current ratings, interrupting capacity, trip characteristics, coordination requirements, environmental conditions, mounting configuration, and applicable safety standards to ensure reliable protection and system performance.

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Please view our large selection of circuit breakers below.