220V电动机换向开关的接线方法如下：；
1、机械设备给我们带来了方便，维修保养也是必不可少的。我们看到的单相电动机在我们的生活中应用最广泛，所以有必要学习一些知识。例如单相电动机的原理，四线的连接，电容器的质量等。换向开关的使用和连接。下面是如何使用倒车开关。
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2、换向开关分为三相和单相。但有三个档位：正挡、止挡和倒车档。图示为单相换向开关。两侧有接线位置，L1、L2、L3为一组，T1、T2、T3为一组。中间是转换连接件和接触件。
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3、这种开关有两种接线方法。事实上，你只需要知道和记住其中一个。下图显示了接线图。
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4、断开电源，将电源的两根线连接到开关L1和L2的螺钉夹中。用一根电线同时连接L1和L3。这样，电源输入线就连接起来了。
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5、然后打开单相电动机接线盒，区分四根导线的代号。用4根导线分别连接到开关的T1、T2、T3和L2。注意与标记一致。
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6、连接后可以打开。换向开关盖上一般有接线图。如果没有，就记住这张照片。其他接线方法在下次安装时详细说明。
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