There exists some problems in using the common alternating current contactor. It improves after having used the vacuum contactor.
普通交流接触器在使用中存在一定的问题，改用真空交流接触器效果良好。
A direct current control circuit adopts an alternating current contactor, so the utility model prolongs the service life and improves the reliability.
在直流控制电路中采用了交流接触器，解决了整机的寿命与可靠性。
The utility model relates to a power saving device for an alternating current contactor, composed of a casing, a starting system and a maintaining system.
本实用新型是一种交流接触器的节电器，由壳体、启动系统、维持系统组成。
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