The accessories of this series of circuit breakers are auxiliary functional components specially designed for NB1,C65 series of circuit breakers.In the electrical circuits of home, building and other places, the accessories of circuit breakers of different colors can be selected and used together with NB1,C65 series circuit breakers according to the needs, which can realize the auxiliary functions of remote control of circuit breakers, providing auxiliary signals, indicating the status of opening and closing, providing alarm signals, realizing over or under voltage protection and so on.The proper use of these circuit breaker accessories can better protect electrical circuits and ensure the safety of persons and property.