Circuit breakers have a typical lifespan of 30 to 40 years. However, they can last longer or shorter, depending on their quality and electrical events in your building. Like all electrical and mechanical devices, they wear out over time.

Molded Case Circuit Breakers (MCCB) is a required component of electrical systems, providing overload protection and short-circuit protection. In most cases, MCCBs are installed in the main power distribution board of a facility, allowing the system to be easily shut down when necessary.

These circuit breakers are applied in panelboards, switchboards, motor control centers, control panels, combination starters, individual enclosures, and bus duct plug-in units. Choose from a selection of Eaton MCCBs ranging from 10 – 3,000 amps.

The tripping circuit of an Molded Case Circuit Breaker is moveable. The MCCB has single, two, three, or four-pole versions. The rating current of an MCCB is 10 to 200 amps (the rating current is the maximum current that the circuit should draw) MCCB's are primarily used in heavy current circuits.