3 way switch wire diagram power to light switch in this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. The black screw is the common which we identified in the steps above as the switch leg or hot power source.
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How to wire a 3 way switch. Take your three way switch. You will see a black screw and two gold screws on the switch. The fixtures hot wire connects. When wiring a 3 way switch first screw the terminal screws of the new switch until they are difficult to turn. The first step in any electrical project is to make sure there is no. Install larger electrical boxes.
Connect the two remaining traveler wires to the two brass or light colored screws. 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. Turn the power off at circuit breaker. Strip all three wires with wire strippers. Each 3 way switch in these examples are controlling the power source to the same load. 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.
Run 2 2 wire conductors between the two boxes. 3 way switches involve more cables so you will need a little more room to work. Connect the ground wire to the green screw. You will likely need larger boxes than you already have if you are replacing a regular single pole switch. Before you can install your new three way switch youll need to put an. Connect the wire marked common to the black or dark colored screw.
Install the correct electrical boxes. The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. How to wire 3 way light switch step by step step 1.
Gallery of How To Wire A 3 Way Switch
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