How to wire three switches in a gang box. The black wire from each light is connected to one of the switches and the source neutral and ground are shared by the two light.
Stamped Round 3 Gang Toggle Light Switch Wall Plate
How to wire a 3 gang light switch. Place the ends side by side and twist tightly together in a clockwise direction using the electricians pliers. They are called switch legs use the voltage tester to determine the hot wire before turning off the power. Turn off the power to the circuit at the breaker panel. One of the wires is the power feed. Install a 3 wire cable from the first switch box to the light fixtures box. The 14 3 cable has three insulated conductors.
Each of the gangs or switches above in fig 2 of which there are three work like this fig 3. Cut three six inch lengths of 14 solid thhn black. This diagram shows two switches in the same box with a separate 120 volt source feeding each. White black and red plus a bare ground wire. Three wire cable is supplying the source for the switches and the black and red wires are each connected to one switch. Feed a length of 14 3 type nm cable or 12 3 if youre connecting to 12 gauge wire between the two boxes.
Cut five six inch lengths of 14 solid. You will need three black wire pigtails and five green wire pigtails. Once twisted together screw a wire nut in place over the twisted ends. It is also called the hot wire the remaining three go to the three light fixtures that the switches will control. It is the only powered wire when the main breaker is on. In position 1 when the switch is down or on com and l1 are connected together just like the one way switchin position 2 when the switch is up or off com and l2 are connected together.
Cut three 6 inch lengths of bare copper wire and make a four way pigtail splice with the bare copper conductor entering the gang box. Connect the wires to the new 3 way switches with ground screws using one of the two wiring diagrams fig. Leave 810 inches 203254 cm of wire inside each of the boxes before cutting the cable to facilitate easy splicing and connection to the switch and fixture.
Gallery of How To Wire A 3 Gang Light Switch
