Either way complete these five steps for 3 way light switch wiring. Attach the black power cable from the wall to the general screw black in the three way light switch.
Handymanwire Wiring A 3 Way Or 4 Way Switch
How to wire a three way switch. This is the existing white neutral wire coming into the box and the new white neutral wire from the 3 wire romex youre going to use to connect the other 3 way switch you will install in a minute. Run three conductor wire between both boxes. When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn. Connect the wire marked common to the black or dark colored screw. Turn off the correct circuit at your electrical panel. Its likely youll also need to replace the.
3 way switches involve more cables so you will need a little more room to work. This first step will eventually send power directly to the light fixture. Connect the ground wire to the green screw. How to wire a three way switch step 1. Feed power wire thru either one of the boxes. Connect the two remaining traveler wires to the two brass or light colored.
Should be your two conductor. You will run the three conductor wire from the box you just ran. Run 2 2 wire conductors between the two boxes. Add an electrical box for the second 3 way switch in the basement. Its likely youll also need to replace the. Wire nut the neutral white wires together.
Install larger electrical boxes. Run power wire into one of the boxes. Hook the curled end of the wire under the screw then tighten down the screw to hold the wire firmly in place. You will likely need larger boxes than you already have if you are replacing a regular single pole switch.
Gallery of How To Wire A Three Way Switch
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