Circuit Breakers

NEMA, UL & CSA North American Product Group

ABB offers a complete line of NEMA, UL & CSA miniature, molded case and power circuit breakers, residual current (ground fault) devices, manual motor starters to protect personnel and equipment. Our circuit breakers offer the best solution for rapidly restoring normal electrical service after a fault and, at the same time, offering the maximum protection of the electrical installation. The MCCB's have an extensive group of interchangeable accessories from electronic trip devices to flange handles.

Our range of circuit breakers

Moulded Case Circuit Breakers

Tmax moulded-case circuit-breakers guarantee an extremely high performance level while being progressively smaller in size, simple to install and able to provide increasingly better safety guarantees for the operator.

Air Circuit Breakers

Air circuit-breakers can be used both as circuit-breakers for general protection (of plants, of user complexes, of electric lines) and as protection circuit-breakers of electrical machines (generators, motors, transformers, capacitors).

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