保护继电器
相损，相序 380 ~ 480VAC
得捷: 17.5 MM 3-PHASE VOLTAGE RELAY
立创商城: 保护继电器
艾睿: Three-phase Undervoltage and Phase-sequence Phase-loss Relay
TME: Module: voltage monitoring relay; DIN; SPDT; OUT1:250VAC/5A; IP20
Omron 欧姆龙