Wiring Diagram For 3 Way Switch. Here are some wiring cases. Typical 3 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.
In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. You can create a detailed diagram like this one or create a simple outline of the layout. The source in this circuit is at the first switch and the light fixture is.
The source in this circuit is at the first switch and the light fixture is.
Black for live or hot wire. Whichever way you prefer wiring a 3 way light switch is easy when you follow our 3 way switch wiring diagram. 3 way switch wiring diagram line to light fixture. The circuit consists of a two way switch at each end top and bottom switches in fig 2 and an intermediate switch in the middle.