What is mcb? working principle of mcb?

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Accepted Answer

MCB stands for Miniature Circuit Breaker. It is an electrical switch that automatically trips when the current exceeds its rating.

MCB is a type of circuit breaker that is commonly used in residential and commercial buildings.
It is designed to protect electrical circuits from damage caused by overloading or short circuits.
The working principle of MCB is based on the thermal and magnetic properties of the materials used in its construction.
When the current flowing through the MCB exceeds its rated value, the thermal element heats up and causes the circuit breaker to trip.
In case of a short circuit, the magnetic element of the MCB trips the circuit breaker almost instantly.
MCBs are available in different ratings and can be easily reset after tripping.
Examples of MCB manufacturers include Schneider Electric, Siemens, and Legrand.

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