Three Way Light Switch Circuit

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Three way light switch circuit.

This might seem intimidating but it does not have to be. 3 way switch wiring diagram depicting all wires in the ceiling junction box. Take a closer look at a 3 way switch wiring diagram. A 3 way light switch allows you to control a light source from two separate points.

There are several ways to install a 3 way light switch. The methods shown here are some of the safest and most versatile though not the only options. Although a 3 way is one of the hardest electrical circuits to figure out it s also one of the most useful. Run new cable romex between the 3 way switches.

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. With these diagrams below it will take the guess work out of wiring. 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 above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. 3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. 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. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.