Three Way Light Switch Wiring

Now the actual wiring.

Three way light switch wiring. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. 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. 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. 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.

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. Wiring a 3 way light switch. Wiring of 3 way light switches 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. 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.

3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. 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. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

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.