What is MCCB

MCCB stands for Molded Case Circuit Breaker. It is another type of electrical protection device which is used when load current exceeds the limit of a miniature circuit breaker. The MCCB provides protection against overload, short circuit faults and is also used for switching the circuits. It can be used for higher current rating and fault level even in domestic applications. The wide current ratings and high breaking capacity in MCCB find their use in industrial applications. MCCB can be used for protection of capacitor bank, generator protection and main electric feeder distribution. It offers adequate protection whenever an application requires discrimination, adjustable overload setting or earth fault protection.


1It stands for Molded Case Circuit Breaker.
2Rated Current from 100A to 3200 A.
3Their interrupting current ranges from around 10KA -85KA
4MCCB is mainly used for both low and high Breaking capacity requirements mainly industrial.
5Its trip current may be fixed as well as adjustable for overload and magnetic setting.
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