Split the incoming hot wire into a y and connect it to a terminal on each switch. Twist another orange wire connector to the remaining black wire on the dimmer connecting it with the white wire wrapped in black electrical tape.
Correct Wiring Of 4 Wire Cooktop To 3 Wire 240v Supply Home
Connect 4 wire switch to 3 wire 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. 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. So take a guess and cap the other one with a wire nut. Of copper conductor on each wire. 3 way switch wire diagram power to light switch.
The first option is to use the black wire of the 12 3 cable as the hot wire. Connect white wires together. 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. Connect the blue wire to the red wire. One way would be to replace the 2 wire cable coming from the existing fixture with a 3 wire cable. Not knowing how the box was wired originally presents a problem but only a small one.
The two hot wires of three wire cable connect to a pair of. In the switch box. A smart switch like your timer needs to use power not just interrupt it so it needs a neutral of its own. The power supply wire is the wire that connects directly to the breaker panel. 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.
Using one 240 volt line to power multiple 120 volt circuits reduces the amount of wire needed and the number of. To do this method the wire from your wall circuit to your light has to have 3 wires. Look at the four wires of the 12 3 cable. Cap the red wire and leave it untouched in the junction box. White wire to white wire neutral. Connect the black wires of both cables together and connect the common white wires together.
Tape the wire nut to the wires with electrical tape. If you only have 1 switch connect the bound blue and black wires to the black wire coming out of your ceiling. White neutral wires often are connected together in a switch box. Twist all four black wires together with a yellow wire nut. Connect black fan wire to the black ceiling wire. Twist your hot wires to the black wire in the ceiling.
Wrap the tape around the wire nut and onto the wires. You need to get it that neutral. Connect the black wire from the power supply to all three of the black pigtails. Green wire ground to uninsulated ground. 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. 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.
In this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. You should always connect your hot wires last. 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
