Wiring a three way switch. Twist the two copper wires in the first box together and attach them to the ground nut on the switch.
3 Way Switch Installation
Light switch wiring diagram red black white. This type of switch has two brass screws usually. Connect the black wire to the screw located in swith 1. A three way switch is different. This type of switch lets you turn the light off or on from more than one place in the room. The diagram below will give you a better understanding how this circuit is wired. Black white and bare.
Red wire power or hot wire black wire power or hot wire white wire neutral bare copper ground. If it doesnt work switch the lower wires. The most common home wiring uses non metallic sheathed cable with three wires in it. Connect the red wire to the screw in switch 2. The standard way to power a split tab outlet is to run a three conductor cable to a wall switch. This is a typical wiring setup for a 3 way light switch with black white red and ground wires.
Split the incoming hot wire into a y and connect it to a terminal on each switch. Some sheathed cable includes a fourth red wire which makes it useful for wiring. The cable has a black wire which connects directly to the circuit and a red wire which connects to the switch. When wiring a 3 way switch circuit all we want to do is to control the black wire hot wire to turn on and off the load from 2 different locations. Connect the white wires together. Connect white wires together.
In the switch box. Going out of both boxes and into your light fixture will be 143 wire which has a black wire hot a white wire neutral a red wire traveler and a bare copper wire ground. Connect the blue wire to the red wire. The ground wire also connects to the switch but the white wire gets spliced to the circuit neutral wire and bypasses the switch.
Gallery of Light Switch Wiring Diagram Red Black White
