Difference Between MCB and MCCB

7 Differences Between MCB and MCCB

S.NO.	MCB	MCCB
1.	MCB stands for miniature circuit breaker.	MCCB stands for moulded case circuit breaker.
2.	MCB is a type of low-voltage circuit breaker that is used to protect electrical circuits from overload and short-circuit conditions.	MCCB is a type of high-voltage circuit breaker that is used to protect electrical circuits and equipment from overload, short-circuit, and other types of electrical faults.
3.	MCB is typically used in domestic and commercial applications.	MCCB is typically used in industrial and utility applications.
4.	MCB is smaller in size and has a lower breaking capacity (the maximum current that the breaker can safely interrupt) than MCCB.	MCCB is bigger in size and has a higher breaking capacity than MCCB.
5.	MCB operates by thermal-magnetic tripping.	MCCB can operate by either thermal-magnetic tripping or electronic tripping.
6.	MCB is typically used for low-voltage circuits with currents up to 100A.	MCCB is typically used for high-voltage circuits with currents above 100A.
7.	MCB is less expensive than MCCB.	MCCB is expensive.

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