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What is the Difference between MCB & MCCB?

Power Systems
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Question added by amr hosni , planning engineer , Telecom-Egypt
Date Posted: 2015/08/22
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abdulrahman Hussein
by abdulrahman Hussein , Electrical Security Engineer , Consolidated Gulf Company (CGC)

MCB is Miniature Circuit Breaker and mainly used in homes. It breaks at rated current of100A. MCCB is Molded-Case Circuit breakers and it breaks at1000A or higher.

Tauseef Mohammed
by Tauseef Mohammed , Architect/Leader , US Bank National

I agree with below answers, nothing new to add.

Thanks

CHUKWUEMEKA NNANNA EDE
by CHUKWUEMEKA NNANNA EDE , Graduate Trainee , Enugu Electricity Distribution Company

MCB is a miniature circuit breaker which is used to break small currents. Mostly in domestic LT circuits. The current rating is up to100 A. MCCB is a Module case circuit breaker which has a rugged construction as it can break larger currents usually from100amp and above

amjad ali
by amjad ali , Senior Electrical Engineer , SNC Lavalin Fayez Engineering

MCB – A miniature circuit breaker having current rating not more than Amps.

 

MCCB – A Module case circuit breaker having a higher current rating up to  Amps.

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