How to wire 3 switches to control 1 light. You will need three black wire pigtails and five green wire pigtails.
Multiple Switch Wiring 3 Way And Single Pole Electrical 101
How to wire three switches. Connect the wires to the new 3 way switches with ground screws using one of the two wiring diagrams fig. How to wire a three way switch step 1. Cut five six inch lengths of 14 solid. Run a 3 wire nm cable between the first and second boxes. 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. Remove the baseboards along the path from the power source receptacle to each of the switches.
When nothing is hooked up there is power in the 2 wire plus ground cable on the upstairs switch. Make the cuts in the wall and ceiling for the switches and fixture. If you are changing an existing triple switch mark the wire going to the common screw. Running the cable along the foot of the drywall is the easiest way to. How to wire three switches in a gang box. This wire needs to go to the common screw.
Connect the two remaining traveler wires to the two brass or light colored screws. Connect the wire marked common to the black or dark colored screw. The common terminal should be marked on the back of the old switch. Run power wire into one of the boxes. With a three way switch three wires connect the pair of switchestwo black traveler wires and a third common wire. Cut the cable to length if there is extra once you pull through the second box.
The two switches appear to be connected by a 3 wire plus ground cable. Feed a length of 14 3 type nm cable or 12 3 if youre connecting to 12 gauge wire between the two boxes. White black and red plus a bare ground wire. The 14 3 cable has three insulated conductors. Should be your two conductor. When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn.
You will run the three conductor wire from the box you just ran. Cut three six inch lengths of 14 solid thhn black. When the circuits power is turned on any of these may be hot depending upon how the switches are toggled. Run three conductor wire between both boxes. Repeat on the other end and run it into your second switch box. Strip 6 9 on one end to expose the three separate wires then run the first half into your first switch box.
Turn off the power to the circuit at the breaker panel. Connect the ground wire to the green screw. Feed power wire thru either one of the boxes.
Gallery of How To Wire Three Switches
