what are MCBs define using a brief paragraph
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An MCB or miniature circuit breaker is an electromagnetic device that embodies complete enclosure in a molded insulating material. The main function of an MCB is to switch the circuit, i.e., to open the circuit (which has been connected to it) automatically when the current passing through it (MCB) exceeds the value for which it is set. It can be manually switched ON and OFF as similar to normal switch if necessary.
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MCB stands for miniature circuit breaker is a automatically oprated electrical switches to protect an electrical circuit from damage caused by excess current from an overloaded or shot circuit
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