ABB模块pm802f

ABB模块pm802f

热继电器的安装方式一般有以下几种：

　　1. 直接安装在电路中

　　在直流或交流电路中的电感式负载上，可以直接安装热继电器，不需要其他辅助装置。

　　2. 安装在接触器上

　　将热继电器安装在接触器上，能够延长接触器的寿命。

　　3. 安装在空气开关上

　　在空气开关中，可以安装一个热继电器控制开关的分合，防止空气开关过载，另外还能确保负载的运行。

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