A circuit breaker is one kind of electric device, used to break any circuit manually otherwise through remotely under normal circumstances. The main function of a circuit breaker or CB is to break a circuit in some fault conditions like a short circuit, over-current, etc. Generally, a circuit breaker switches or protects the system. Some devices are associated with circuit breakers such as relays; switches, fuses, etc are also used for the same purpose. The applications of circuit breakers mainly include power systems and industries for protecting as well as controlling various parts in the circuit namely transformers, switch gears, motors, alternators, generators, etc. There are different kinds of circuit breakers used in industries where the air circuit breaker is one type. This article discusses an overview of the air circuit breaker.

A circuit breaker is one kind of electric device, used to break any circuit manually otherwise through remotely under normal circumstances. The main function of a circuit breaker or CB is to break a circuit in some fault conditions like a short circuit, over-current, etc. Generally, a circuit breaker switches or protects the system. Some devices are associated with circuit breakers such as relays; switches, fuses, etc are also used for the same purpose. The applications of circuit breakers mainly include power systems and industries for protecting as well as controlling various parts in the circuit namely transformers, switch gears, motors, alternators, generators, etc. There are different kinds of circuit breakers used in industries where the air circuit breaker is one type. This article discusses an overview of the air circuit breaker.