MCCB stands for Molded Case Circuit Breaker.

MCCB is a circuit breaker used in power distribution systems to protect against overcurrent and short circuits. MCCBs are designed for higher current ratings and are commonly used in commercial, industrial and residential environments.

The MCCB consists of a molded housing that houses the internal components of the circuit breaker. The casing is made of an insulating material such as molded plastic or epoxy to provide protection and containment for the operation of the circuit breaker.