Take your three way switch. The first step in any electrical project is to make sure there is no power going to the circuit you plan to be working on.
3 Way Switch Wiring Electrical 101
How to wire 3 way switch. White black and red plus a bare ground wire. When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box. Feed a length of 14 3 type nm cable or 12 3 if youre connecting to 12 gauge wire between the two boxes. Skills and trade 339254 views. You will see a black screw and two gold screws on the switch. How to wire a 3 way switch system duration.
Connect the two remaining traveler wires to the two brass or light colored screws. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. When nothing is hooked up there is power in the 2 wire plus ground cable on the upstairs switch. There is only the single 3 wire plus ground in the downstairs switch box and only two 2 wire plus ground cables at the fixture. Take a closer look at a 3 way switch wiring diagram. Turn the power off at circuit breaker.
Connect the wire marked common to the black or dark colored screw. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. Connect the ground wire to the green screw. The two switches appear to be connected by a 3 wire plus ground cable. The black screw is the common which we identified in the steps above as the switch leg or hot power source. When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn.
Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch. The 14 3 cable has three insulated conductors. Fixture between two three way switches. Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. Diy how to paint like a pro series a to z duration. This might seem intimidating but it does not have to be.
Interested in a 4 way switch wiring diagram. Home renovision diy 4089191 views. Connect the wires to the new 3 way switches with ground screws using one of the two wiring diagrams fig. With these diagrams below it will take the guess work out of wiring. First bend hook in the ground wire wrap around the green screw. Basic 3 way switch diagram how to wire 3 way light switch step by step.
Gallery of How To Wire 3 Way Switch
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