Three Way Electrical Switch Wiring Diagram

Building a new workshop that is detached from home.

Three way electrical switch wiring diagram.

I have a outside light by the door going out of the home that is controlled by a single pole switch. Diy electrical wiring a 3 way switch. With these diagrams below it will take the guess work out of wiring. The white wire between switches is not being used as a neutral.

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. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. 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. In the above diagram the white wire must be re identified as a hot wire at each switch location.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. An example of three way switch wiring with the line and load in the same 4 square electrical box. The black line wire connects to the common terminal of the first 3 way switch.

This is the 3 wire cable which you must have to wire a 3 way. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 3 way switch wiring diagram with line and load in the same switch box. Take a closer look at a 3 way switch wiring diagram.

Traveler wires are interchangeable. 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. Typical 3 way switch wiring nm cable. How would this be wired.