what is meant by MCB and MCCB? and what its full form?
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Answer Posted / faizal
MCB - miniature circuit breaker
1) we can use it upto 100A
2) thermally operated and used for short circuit/ overload protection
3) trip current / trip characteristics not adjustable it is fixed
MCCB - moulded case circuit breaker
1) we can use it above 100A
2) used for short circuit/ overload protection
3) thermal trip protection for over load current
4) magnetic trip protection for short circuit ( instant operation )
5) trip current / trip characteristics is adjustable
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