The article analyses control circuit of relay contactor in electric circuit experiment and puts forward to control it with logic function.
对电路实验中继电接触器控制线路进行了研究分析，并提出由逻辑函数实现其控制的方法。
2
Control electric box or circuit board with contactor, relay, or triac that switches to the compressor.
要切换到压缩机，可以通过电流接触器开关，继电器或者双向可控硅来控制电流盒或者电路板。
3
The utility model relates to a common used low voltage appliance, that is the contactor of the permanent magnetic operational electric magnet combination.