3 Way Toggle Switch Wiring Diagram. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. 3 way switch diagram 2 above shows the electricity source starting at the fixture.
The black line wire connects to the common terminal of the first 3 way switch. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 3 way switch diagram 2 above shows the electricity source starting at the fixture.
Three wire cable runs between the switches and 2 wire cable runs to the light.
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. 3 way switch wiring diagram. A three way switch is built and wired a little differently than a conventional single pole light switch. 3 way switch wiring diagram depicting all wires in the ceiling junction box.
