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what is meant by MCB and MCCB? and what its full form?
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Answer Posted / sms
MCB is miniature circuit breaker which is thermal oprated
and use for short circuit protection in small current
rating circuit. MCCB is moulded case circuit breaker and is
thermal operated for over load current and magnetic
operation for instant trip in short circuit condition.
Under voltage and under frequency may be inbuilt. Normally
it is used where normal current is more than 100A.
| Is This Answer Correct ? | 70 Yes | 6 No |
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