应急电源电路断路器
emergency source circuit breaker
备用电源断路器
auxiliaries-supply circuit-breaker
电源断路器辅助触点
source breaker auxiliary contact
断路器操作电源
circuitbreaker control power supply
辅助电源断路器
auxiliaries-supply circuit-breaker
紧急停车开关紧急电源断路器辅助触点
es emergency source breaker auxiliary contact
应急电源断路器开关
emergency source breaker switch
铲运机发动机电路断路器
scraper engine circuit breaker
电路断路器分流跳闸线圈
circuit breaker shunt trip coil