感应式低电压继电器
induction type under-voltage relay
感应式低压继电器
induction type under-voltage relay
incuction type undervoltage relay
高低压继电器
high-low voltage relay
high and low pressure relay
高低压继电器
high and low pressure relay
低电压方向继电器
directional under voltage relay
低压释放继电器
low voltage release relay
低压电器电触头
low voltage apparatus electrical contacts
感应式过电压继电器
induction type over-voltage relay
induction type overvoltage relay
活塞式过电压继电器
plunger type overvoltage relay
活塞式欠电压继电器
plunger type undervoltage relay