Three Way Electrical Switch Wiring

In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture.

Three way electrical switch wiring.

Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations. Either way complete these five steps for 3 way light switch wiring. This guide highlights the procedures for replacing a broken 3 way electrical switch. 3 way switch wiring diagram depicting all wires in the ceiling junction box.

Add an electrical box for the second 3 way switch in the basement. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Diy electrical wiring a 3 way switch. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw.

A three way wall switch is a common type of light switch that makes it possible to control a ceiling light or other electrical fixture from two different locations in a room. Take a closer look at a 3 way switch wiring diagram. Typical 3 way switch wiring nm cable. It s likely you ll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch.

Turn off the correct circuit at your electrical panel. Before proceeding make sure you are comfortable working with electrical wires and switches. 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.

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. Traveler wires are interchangeable. Two 3 way switches are required in any 3 way application. With these diagrams below it will take the guess work out of wiring.

How would this be wired. 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. The black line wire connects to the common terminal of the first 3 way switch. A 3 way wall switch controls a common light or set of lights from two separate switch locations.

Building a new workshop that is detached from home.