JFZ-500E Auxiliary Relay is a multifunctional device that is mainly used for the auxiliary supporting products of protection relay or control relay, compatible with other protection and control products, integrate the operation box and switching/parallel box into a whole, complete the main function of operation box and take the switching/voltage parallel as the auxiliary.
Protection and supporting for operating multiple circuit breakers such as transformer and generator-transformer unit; Selection of three-phase and split-phase circuit breaker of dual bus wiring and 3/2 wiring; The device can support single or double trip coil circuit breaker
