As expansion function module of ac contactor, mechanical locking module and ac contactor configurated locking contactor, applies in not frequently operated occasion.
机械锁扣模块作为交流接触器的扩展性功能模块，与交流接触器组成锁扣接触器，应用于不频繁操作的场合。
As expansion function module of ac contactor, mechanical locking module and ac contactor configurated locking contactor, applies in not frequently operated occasion.
机械锁扣模块作为交流接触器的扩展性功能模块，与交流接触器组成锁扣接触器，应用于不频繁操作的场合。
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