How does a circuit breaker react to a short circuit?

A circuit breaker is designed to protect electrical circuits by automatically interrupting the flow of electricity when a fault, such as a short circuit, occurs. In the event of a short circuit, there is a sudden surge in current that can pose a serious risk of fire and damage to electrical components. The circuit breaker detects this excessive current flow and responds by tripping, which effectively cuts off the power rapidly and prevents potential hazards.

This rapid disconnection is crucial because it minimizes the risk of overheating wires and electrical devices that can result from the high current associated with a short circuit. By quickly isolating the fault, the circuit breaker ensures the safety of both the electrical system and anyone in proximity to it.