3 Way Switch Wiring Diagram Power From
Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches.
3 way switch wiring diagram power from. To illustrate the wiring of these 3 way switches switch boxes and fixture boxes are not shown but are obviously required for every application. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Fixture between two three way switches.
Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. This electrical wiring diagram shows power into light switch box 1 wire to light from switch box 1 and from switch box 1 to three way light switch box 2. Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.
Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. In this light switch wiring diagram the power feed joins the circuit via the light fixture where a two wire cable c2 runs from the light to the first 3 way switch sw1 and a 3 wire cable c3 joins the two switches. Traveler wires are interchangeable. 3 way switch wiring diagram.
All three way switch and 2 way switch wiring diagrams have the same basic components. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. The black line wire connects to the common terminal of the first 3 way switch. If you are trying to troubleshoot a 3 way switch operation you will need to identify the function of each wire.
In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Wiring a 3 way light switch. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. Take a closer look at a 3 way switch wiring diagram.
This might seem intimidating but it does not have to be. With these diagrams below it will take the guess work out of wiring.