Why circuit breaker is used for protection? All Questions › Category: Switchgear And Protection › Why circuit breaker is used for protection? 0 Vote Up Vote Down chetan shidling asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 4 years ago It will break the circuit when a fault occurs. It protects the circuit from two faults such as overload and short circuit.