3 Way Switch Diagram

3 way switch diagram tips continuous hot and light feed wire goes on black screw. The black line wire connects to the common terminal of the first 3 way switch.

Staircase Wiring Circuit Diagram Using Two Way Switch

This might seem intimidating but it does not have to be.

3 way switch diagram. Add an electrical box for the second three way switch in the basement. The black hot wire connects to the far right switchs common terminal. 3 way switches have three terminals one common usually black color and one pair of travelers usually brass color.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. The 3 wire cable consist of a black wire a white wire and a bare copper wire while the 4 wire cable has an added red wire which is hot as well. Its likely youll also need to replace the existing switch box with a larger one to accommodate the extra wires for the three way switch.

3 way switch wiring diagram. 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. 3 way switch wire diagrampower to light fixture.

Traveler wires are interchangeable on each switch. With these diagrams below it will take the guess work out of wiring. In this diagram power enters the fixture box.

Take a look at the following diagrams below. Wiring of 3 way light switches is certainly not easy but you can figure it out if you follow our 3 way switch diagrams. Feed a length of 14 3 type nm cable or 12 3 if youre connecting to 12 gauge wire between the two boxes.

Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Take a closer look at a 3 way switch wiring diagram.

Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Watch all videos below for easy steps.

143 with ground or 123 with ground wire best to use between switches. Traveler wires go on the brass screws. This three way light switch wiring diagram shows how to do the light switch wiring and the light when the power is coming to the light fixture.

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. With conventional wiring the common wire from one switch connects to line the common wire from the other switch connects to the load lights. Typical 3 way switch wiring nm cable.

The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. With a pair of 3 way switches either switch can make or break the connection that completes the circuit to the light. All of the switches shown below are 3 way.

Fixture between two three way switches. 3 way switch wiring diagram variation 3. 3 way switch diagram multiple lights.

Wiring A 3 Way Switch