Three Way Electrical 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.

Three way electrical switch wiring diagram.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 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. The white wire between switches is not being used as a neutral. Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations. How would this be wired.

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. Diy electrical wiring a 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.

This might seem intimidating but it does not have to be. The black line wire connects to the common terminal of the first 3 way switch. An example of three way switch wiring with the line and load in the same 4 square electrical box. Typical 3 way switch wiring nm cable.

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. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Building a new workshop that is detached from home. This is the 3 wire cable which you must have to wire a 3 way.