3BSE008584R1

 3BSE008584R1

 3BSE008584R1

 3BSE008584R1

图1中的FR是作过载保护用的热继电器，异步电动机长期严重过载时，经过一定延时，热继电器的常闭触点断开，常开触点闭合。其常闭触点与接触器的线圈串联，过载时接触器线圈断电，电机停止运行，起到保护作用。

有的热继电器需要手动复位，即热继电器动作后要按一下它自带的复位按钮，其触点才会恢复原状，即常用开触点断开，常闭触点闭合。这种热继电器的常闭触点可以像图2那样接在PLC的输出回路，仍然与接触器的线圈串联，这种方案可以节约PCL的一个输入点。

备货，备货，降降降，火火火，火火火……

备货，备货，降降降，火火火，火火火……

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公司名称：厦门泰尼电气有限公司

联系人：小廖（销售代表）

联系电话：0592-6539066

传真号码：0592-6890859（麻烦备注01008收）

手机：13400716209

QQ号码:1490371370
邮箱：1490371370@qq.com

诚信经营，质量为首，诚信至上，泰尼电气小廖竭诚为您服务！！！

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