3 Way Light Switch Wiring

In order to wire three way switch properly you will need to use one of the diagrams that we will post below and which one you use depends on whether electricity will be coming into your light fixture first into the light switch first or light will be in between switches.

3 way light switch wiring. 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. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. To wire a 3 way light switch you ll need 2 3 way light switches 2 2 wire non metallic cables 1 3 wire non metallic cable and 2 6 inch grounding wires.

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. 3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. No longer allowed after 2011 nec if no neutral wire in switch boxes 3 way switch wiring diagram light fixture between switchesline voltage enters the first 3 way switch outlet box light fixture is located between switch boxes no longer allowed after 2011 nec if no neutral wire in switch boxes.