Three Way Electrical Switch Wiring Diagram

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.

Three way electrical switch wiring diagram.

With these diagrams below it will take the guess work out of wiring. How would this be wired. Traveler wires are interchangeable. This is the 3 wire cable which you must have to wire a 3 way.

I have a outside light by the door going out of the home that is controlled by a single pole switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. 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.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. In the above diagram the white wire must be re identified as a hot wire at each switch location. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. 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.

Take a closer look at a 3 way switch wiring diagram. Diy electrical wiring a 3 way switch. Building a new workshop that is detached from home. This might seem intimidating but it does not have to be.

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. Wiring a 3 way light 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.