In these older appliance installations where 3-wire cords were legally installed, the wiring consisted of two hot wires and a neutral wire. This equipment grounding conductor is the missing wire in the older 3-wire configurations.
The 4th wire in that cord and plug configuration is an equipment grounding conductor.
3 WAY SWITCH WITH 4 WIRES PLUS
You can only have one, the other switch plus the one or more 4-way switches in the middle must be toggle switches. While no 4-way dimmer exists, there are 3-way dimmers that you could replace one of your two 3-way switches with. If you want to abandon the other 3-way, you cannot remove or cover the box. The two traveling wires can be swapped either way with no bad effect. Can you wire a 4 way switch to a 3 way switch?īoth the smart switch and the original 3-way should have labels for common wire and traveling wires. Either wire can be used to power a circuit. The red and black wires are the”hot” wires. Connect the black wire of the 3-wire circuit to either the red or the black wire of the 4-wire circuit. How do you connect 4 wires to 3 wires?Ĭonnect the ground wire of the 3-wire cable to the ground wire of the 4-wire cable. If you have less than three wires, stop and call an electrician. Older homes may only have a hot lead and a ground wire. Single pole switches will have 3 wires: a hot lead wire, a ground wire, and a traveler wire. Traveler wires are interchangeable on each switch. Quote from Youtube video: Start by removing the ground wire off of the existing switch and tying it in a wiring up with the green wire coming off of the dimmer.Ī 3-wire NM connects the travelers of the dimmer to the travelers of the 3-way switch. How do you wire a 3-way dimmer switch with 4 wires? The whites are normally just connected together with a wire nut and the coppers are connected together with a wire nut or grounded to a metal junction box. Since the switch cuts the power on and off, there will be a black wire coming into the switch and a black wire leaving. The diagram below will give you a better understanding how this circuit is wired. When wiring a 3-way switch circuit, all we want to do is to control the black wire (hot wire) to turn on and off the load from 2 different locations. Next take the common wire the one marked with a piece of electrical tape. Quote from Youtube video: Begin by inserting the bare copper ground wire under the green terminal screw on the dimmer. How do you wire a 3-way dimmer switch with 3 wires? What are the advantages of 3-phase 4 wire system?.What is the difference between 3 wire and 4-wire?.Why do some electrical cables have 4 wires?.What is 4 wire electrical wire used for?.Can you wire a 4 way switch to a 3 way switch?.What are the 3 wires on a dimmer switch?.Why does my dimmer switch have 3 wires?.How do you wire a 3-way dimmer switch with 4 wires?.Why does my dimmer switch have 4 wires?.How do you wire a 3-way dimmer switch with 3 wires?.
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