交流接触器常开与常闭
发布日期:2018-01-22 14:52:24

常开 —— 在接触器没工作的情况下,该触点为开路;

常闭 —— 在接触器没工作的情况下,该触点为闭合;

工作时,常闭触点先断开,常开触点再闭合;当接触器线圈断电时,常开触点先断开,常闭触点才闭合复位。

常开触点也就是在没有通电的情况下两触点之间是开路的(即不导通),常闭则反之.

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