ELCB and MCB

 In our house, there is an Earth Leakage Circuit Breaker. This is like a main switch in the electrical circuit at home. When there is excessive current flowing through the wires at home, the Earth Leakage Circuit Breaker will break the entire circuit at home for a short time less than 25ms. This prevents excessive flow in the wires which can prevent overheating

The miniature circuit breaker operates like a fuse, but it can be manually reset without replacing it with another miniature circuit breaker. When there is an excessive current flow, the miniature circuit breaker will trip, breaking the circuit.