A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. How to wire 3 way light switch in this video we explain how three way switching works to connect a light fitting which is controlled with two light switches.
Add Additional Circuits After 3 Way Switch Home Improvement
Wiring a 3 way light switch. Typical 3 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Screw your two boxes and light fixture into place then gather your supplies. Head to your fuse box and make sure there is no power coming to the room. B connect the black hot wire coming from the romex cable that leads to your circuit panel to your new 3 way light switch 1 you will connect the hot wire to the hot terminal on the 3 way switch which is usually black and stands alone. With these diagrams below it will take the guess work out of wiring. Connect the two remaining traveler wires to the two brass or light colored screws.
The system also requires three way switches. The power wire the neutral wire and the traveller or switch wire. Flip off power in the room youre working. Add an electrical box for the second three way switch in the basement. Slide the 2 wire nm power cable. Interested in a 4 way switch wiring diagram.
Three way switches require a three wire cable. This might seem intimidating but it does not have to be. The black line wire connects to the common terminal of the first 3 way switch. Before you even start wiring you want. The cable should also have a ground wire or a total of four wires in the cable. When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn.
Connect the ground wire to the green screw. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Its likely youll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Either way complete these five steps for 3 way light switch wiring. Take a closer look at a 3 way switch wiring diagram.
Connect the wire marked common to the black or dark colored screw. Wiring the switches 1. Wiring a 3 way light switch 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. We look at the us color coding wires. Turn off the correct circuit at your electrical panel. This first step will eventually send power directly to the light fixture.
Gallery of Wiring A 3 Way Light Switch
