How Do You Wire A Three Way Electrical Switch

Either way complete these five steps for 3 way light switch wiring. Interested in a 4 way switch wiring diagram.

How To Replace A Three Way Light Switch Dummies

How To Replace A Three Way Light Switch Dummies

How do you wire a three way electrical switch. Take a closer look at a 3 way switch wiring diagram. Typical 3 way switch wiring nm cable. We look at the us color coding wires. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. The black line wire connects to the common terminal of the first 3 way switch. 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.

Add an electrical box for the second 3 way switch in the basement. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Turn off the correct circuit at your electrical panel. To wire a 3 way light switch youll need 2 3 way light switches 2 2 wire non metallic cables 1 3 wire non metallic cable and 2 6 inch grounding wires. With these diagrams below it will take the guess work out of wiring.

Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Its likely youll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. How to wire 3 way light switch in this video we explain how three way switching works to connect a light fitting which is controlled with two light switches. Traveler wires are interchangeable. In a hallway or large room for example installing three way switches at both ends lets you turn the light fixture on or off from both locations. This might seem intimidating but it does not have to be.

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