辅助接触电路断路器
auxiliary contact circuit breaker
旁路接触器接触分合试验
bypass contactor pickup test
电路断路器辅助触点
circuit breaker auxiliary contact
电源断路器辅助触点
source breaker auxiliary contact
辅助接触开关
auxiliary contactor switch
紧急停车开关紧急电源断路器辅助触点
es emergency source breaker auxiliary contact
继电器接触器控制系统
relay contactor control system