Question

what is mcb and how does work it​

Answer 1

Answer:

mcb are the miniature breaker circuits they automatically turns off when the current exceeds it's safety limits

Answer 2

A miniature circuit breaker (mcb) is a device that has one or more switches . It is an automatically operated switch, which switches off when excess current flows through the circuit. It can be reset easily unlike a fuse.

Working : Whenever over current is passed through mcb , the bimettalic strip is heated and deflects by bending.

The defection of bimettalic strip realeases a mechanical latch . To restart it should be Manually turned on.

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