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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