Three Way Electrical Switch Wiring Diagram

3 way switch wiring diagram with line and load in the same switch box.

Three way electrical switch wiring diagram. The black line wire connects to the common terminal of the first 3 way switch. In the above diagram the white wire must be re identified as a hot wire at each switch location. With these diagrams below it will take the guess work out of wiring. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together.

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. 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. This might seem intimidating but it does not have to be. Building a new workshop that is detached from home.

Typical 3 way switch wiring nm cable. Wiring a 3 way light switch. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations.

The white wire between switches is not being used as a neutral. How would this be wired. This is the 3 wire cable which you must have to wire a 3 way. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.

I have a outside light by the door going out of the home that is controlled by a single pole switch. An example of three way switch wiring with the line and load in the same 4 square electrical box. Traveler wires are interchangeable. Take a closer look at a 3 way switch wiring diagram.