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MINIATURE CIRCUIT BREAKER FUNCTION (MCB)
Miniature circuit breaker is a kind of  low voltage electrical appliance, which is protecting circuits and power source from overload and short-circuit, and also working as infrequent change-overs of electrical apparatus and lighting circuits.

Miniature circuit breaker (short as MCB) can be also called as mini circuit breaker, micro circuit breaker, etc. It is a widely used appliance for terminal protection, in both single phase and three phase system with rated current up to 125A. It normally includes four types of 1P, 2P, 3P, 4P.

MCB Rating
Normally there are ratings 1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 100A for MCBs.

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