What are the types of circuit breakers and relays?
A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow. Unlike a fuse, which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city. Types of circuit breaker Low voltage circuit breakers Magnetic circuit breaker Thermal magnetic circuit breaker Rated circuits Common trip breakers Medium-voltage circuit breakers High-voltage circuit breakers Sulfur hexafluoride (SF6) high-voltage circuit-breakers …
