Exemplary Wiring Up A 3 Way Switch
Either way complete these five steps for 3 way light switch wiring.
Wiring up a 3 way switch. Turn the power off at circuit breaker. The wiring method will depend on whether your power goes to the switch first or the light first. The system also requires three way switches.
This might seem intimidating but it does not have to be. Effectively read a wiring diagram one provides to know how the components within the system operate. To make sure there s no room for doubt you can use a.
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. Get more details at.
Be sure to identify the electrical circuit correctly you ll be wiring into and turn off the breaker at your home s main electrical panel. Add an electrical box for the second 3 way switch in the basement. The cable should also have a ground wire or a total of four wires in the cable.
The switches are wider than regular single pole switches and they have three terminal screws on the side sometimes back of the switch housing. Interested in a 4 way switch wiring diagram. 3 way switches are useful for large rooms with multiple entrances but require a bit more wiring than a standard single pole switch.
It s likely you ll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. Two terminals will be on one side of the switch housing. Mike teaches you how to wire a 3 way switch.