Three Way Electrical Switch Wiring Diagram

Typical 3 way switch wiring nm cable.

Three way electrical switch wiring diagram.

This might seem intimidating but it does not have to be. 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. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. The black line wire connects to the common terminal of the first 3 way switch.

I have a outside light by the door going out of the home that is controlled by a single pole switch. Traveler wires are interchangeable. 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. With these diagrams below it will take the guess work out of wiring. Building a new workshop that is detached from home. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

How would this be wired. This is the 3 wire cable which you must have to wire a 3 way. Diy electrical wiring a 3 way switch. 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. Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations. Wiring a 3 way light switch. 3 way switch wiring diagram with line and load in the same switch box.