Green wire ground to uninsulated ground. Tape the wire nut to the wires with electrical tape.
Ceiling Fan Switch Wiring Electrical 101
Connect 4 wire switch to 3 wire box. Of copper conductor on each wire. In the switch box. If you have a 2 switch setup connect the blue and black wires to the blue and black wires coming out of your ceiling. 3 way switch wire diagram power to light switch. Cap the red wire and leave it untouched in the junction box. A smart switch like your timer needs to use power not just interrupt it so it needs a neutral of its own.
White wire to white wire neutral. Not knowing how the box was wired originally presents a problem but only a small one. If you only have 1 switch connect the bound blue and black wires to the black wire coming out of your ceiling. Twist another orange wire connector to the remaining black wire on the dimmer connecting it with the white wire wrapped in black electrical tape. Split the incoming hot wire into a y and connect it to a terminal on each switch. Connect one black wire from the dimmer to the black wire inside the switch box by twisting an orange wire connector onto both wires.
There are two ways to connect a 12 2 wire to this cable. Route them along the back of the box to a central location cut them to length and use wire strippers to expose about 34 in. So take a guess and cap the other one with a wire nut. Connect black fan wire to the black ceiling wire. This configuration is used most often for large lighting arrays. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch.
In this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. White neutral wires often are connected together in a switch box. Using one 240 volt line to power multiple 120 volt circuits reduces the amount of wire needed and the number of. Look at the four wires of the 12 3 cable. Youll have to guess whether to use the red or the black wire from the box to connect to the black wire from the fixture. The power supply wire is the wire that connects directly to the breaker panel.
Twist all four black wires together with a yellow wire nut. One way would be to replace the 2 wire cable coming from the existing fixture with a 3 wire cable. Connect the blue wire to the red wire. You need to get it that neutral. To do this method the wire from your wall circuit to your light has to have 3 wires. You should always connect your hot wires last.
Connect the black wires of both cables together and connect the common white wires together. Twist your hot wires to the black wire in the ceiling. Wrap the tape around the wire nut and onto the wires. Connecting a 4 wire and a 3 wire circuit at a junction box is used to connect two 120 volt circuits to one 240 volt line. Connect white wires together. The first option is to use the black wire of the 12 3 cable as the hot wire.
The two hot wires of three wire cable connect to a pair of. Connect the black wire from the power supply to all three of the black pigtails. Twist the conductors with pliers trim the bundle and cap it with a wire nut.
Gallery of Connect 4 Wire Switch To 3 Wire Box
