Light Switch 3 Way Wiring Diagram. Traveler wires are interchangeable on each switch. Switched outlet wiring diagram.
Here the source and the fixtures come before the switches. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit. Wire a switched outlet.
The black line wire connects to the common terminal of the first 3 way switch.
If you are replacing an existing 3 way switch. This diagram illustrates another multiple light circuit controlled by 3 way switches. 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.
