Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. Secure the white wire to the second wire with the same color using a wire nut.
Wiring A Red Series Dimmer Switch With Power From Light For 3
How wire 3 way switch. Install the correct electrical boxes. Step 1 the breaker phase black wire neutral white wire as well as the ground green wire must be landed in the first switch enclosure. Strip all three wires with wire strippers. The first step in any electrical project is to make sure there is no. When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box. It does not matter to which terminal screw this wire is connected.
Step 2 connect the black wire to the input 1 of your switch. The 3 wire cable enters through the top of the first switch box. The red insulated wire connects to either one of the 2 unused terminal screws shown in the image above to be on the top left and right sides of both 3 way switches. How to wire 3 way light switch step by step step 1. Connect 3 wire cable in the first switch box. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch.
Connect the ground wire to the green screw. Take your three way switch. Connect the wire marked common to the black or dark colored screw. The black screw is the common which we identified in the steps above as the switch leg or hot power source. You will see a black screw and two gold screws on the switch. When nothing is hooked up there is power in the 2 wire plus ground cable on the upstairs switch.
When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn. In this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. 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. Connect the two remaining traveler wires to the two brass or light colored screws. The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. Turn the power off at circuit breaker.
Before you can install your new three way switch youll need to put an. The two switches appear to be connected by a 3 wire plus ground cable.
Gallery of How Wire 3 Way Switch
