Spectacular Wiring For Three Way Light Switch

Finally run the last 2 wire cable from the second switch s black screw to the light.

Wiring for three way light switch. The black wire from the other 3 way gets connected to the line black wire. Then connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. When a white wire is used for hot like.

Two wire cable runs from the light to sw1 and 3 wire cable runs between sw1 and sw2. It s very easy to mix up three way switch wiring when replacing a three way switch especially because in older wiring systems the standard color coding of wires may look different than it does in newer installations. 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.

This 3 way light switch wiring diagram shows how to do the light switch wiring and the light when the power is coming to the light fixture. The line white neutral wire gets connected to the light fixture. In this diagram the source for the circuit is at the light fixture and the two switches come after.

The hot source wire is spliced at the light box to the white cable wire running to the first switch box. 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. A 3 way switch allows you to turn a light on or off from two different switches.

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. The whole wiring a light switch project can be completed in a few hours if you don t have to do any drywall removal and repair. A three way light switch is one where you have two switches that have the ability to control the same light or set of lights.

Pick the diagram that is most like the scenario you are in and see if you can wire your switch. The black hot wire connects to the far right switch s common terminal. In this diagram power enters the fixture box.