Then remove the light switch panel to see where the power is going. The 3 wire cable consist of a black wire a white wire and a bare copper wire while the 4 wire cable has an added red wire which is hot as well. Before you begin wiring your 3 way switch turn off the circuit for the room you re working in. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. In this video i will show you how to wire a three way switch the easy way. If you follow this how to you will be leaps and bound. See the description of each one of them below. A typical three way switch will have you guessed it three terminals. How to wire a 3 way switch.
So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. 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. Before you begin wiring your 3 way switch turn off the circuit for the room you re working in. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. 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. A typical three way switch will have you guessed it three terminals. Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. If you follow this how to you will be leaps and bound. In both cases install a larger electrical box and run a 3 way cable between the 2 boxes before you do the wiring. Then connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch.
You ll follow one set of directions if you see two black wires coming into the switch but another set if there s just one. The third wire is connected between one of the traveler terminals of the two 3 way switches. The second wire is connected to the common terminal or black screw of the second 3 way switch and its destination is the corresponding terminal of the bulb black. A typical three way switch will have you guessed it three terminals. 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 new cable romex between the 3 way switches. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. How to wire a 3 way switch. Refer to the above 3 way switch diagram. The 3 wire cable consist of a black wire a white wire and a bare copper wire while the 4 wire cable has an added red wire which is hot as well.
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. This 3 way light switch wiring diagram shows how to do the light switch wiring and the light when the power is coming to the light fixture. Red wire traveler or switch wire. Before you begin wiring your 3 way switch turn off the circuit for the room you re working in. You ll follow one set of directions if you see two black wires coming into the switch but another set if there s just one. Once your boxes are in place you can start the process of installing and wiring the switches themselves. In this diagram power enters the fixture box. When you ve finished the wiring screw the switch into the electrical box. How to wire a 3 way switch. The second wire is connected to the common terminal or black screw of the second 3 way switch and its destination is the corresponding terminal of the bulb black.
Then connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. You ll follow one set of directions if you see two black wires coming into the switch but another set if there s just one. In this video i will show you how to wire a three way switch the easy way. The principle is that the switch will have one main input terminal and two output terminals. Once your boxes are in place you can start the process of installing and wiring the switches themselves. Red and blue wires link traveler terminals of both switches. In this diagram power enters the fixture box. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. Refer to the above 3 way switch diagram. The 3 wire cable consist of a black wire a white wire and a bare copper wire while the 4 wire cable has an added red wire which is hot as well.
