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什么是 4 路电灯开关

贺拉斯-贺

最後更新:2023年12月26日

什么是 4 路电灯开关

四路电灯开关是一种专用开关,用于从三个或更多位置控制一盏灯或一组灯。它是 多地点照明控制系统与两个 3 路开关配合使用。4 路开关的主要用途是提供额外的控制点,让用户可以从多个位置(如楼梯的顶部和底部或房间的不同入口)打开或关闭灯光。

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在典型的设置中,电路两端有两个 3 向开关,中间有一个或多个 4 向开关。当其中一个三向开关被打开时,它就会通过其中一根走线向四向开关发送信号。然后,4 向开关会将电力输送到另一个 3 向开关或 灯具.同样,当另一个 3 向开关被打开时,它通过另一根导线向 4 向开关发送信号,然后 4 向开关将电流转向相反的方向。

从外形上看,4 路开关有四个螺丝端子,两对端子位于相对的两侧。三路开关的走线连接到这些端子上,从而实现信号传输。此外,4 路开关还可能有一个用于接地的接地端子。

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