3 Way Switch Wiring Diagram Power From

Wiring a 3 way light switch.

3 way switch wiring diagram power from. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. 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.

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. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch. With these diagrams below it will take the guess work out of wiring.

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. 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. Fixture between two three way switches. To illustrate the wiring of these 3 way switches switch boxes and fixture boxes are not shown but are obviously required for every application.

Take a closer look at a 3 way switch wiring diagram. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. This might seem intimidating but it does not have to be. 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. 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 travelers actually pass the electricity between the two 3 way switches as well as the 4 way switches shown in the 4 way switching wiring diagrams. All three way switch and 2 way switch wiring diagrams have the same basic components.