![]() It's much better to watch the video above to have a realistic 3-way wiring diagram. Here's a 3-way wiring diagram I made back in the 1990s on a very crude version of Microsoft Publishing software. Depending on the model, the switch may also have a ground wire, which is typically green or copper. These wires provide power to the switch and to the light fixture when the switch is in the on position. The black feed wire that goes to the light fixture is connected to the single black screw on the other 3-way switch. The Leviton 3-way switch diagram starts with a pair of hot wires (black and red), which are connected to the terminals on the switch. The line wire is the one that is hot all the time. This is the most versatile way to electrically wire a ceiling fan with a light kit. It's important to realize you must put the line wire on the single black screw on the one 3-way switch. Switching the Light AND Fan from the Same Switch (Single Switch). That's the best part.Ĭonnecting the traveler wires is caveman simple and idiot-proof. It makes no difference what wire goes on what screw at each switch. Watch the video above to see how easy it is to connect them. The traveler wires go on the brass screws. They often call the other black wire that goes from the other 3-way switch to the light fixture the load wire as the light bulb(s) are the actual load or thing that's using the electricity. The black screw on a 3-way switch diagram is for the continuous hot wire that comes from the circuit panel or for the feed wire that runs up to the light fixture.Įlectricians call the continuous hot wire the line wire. What is the Black Screw For on a 3-Way Switch Diagram? It is true that there are several wiring configurations for wiring 3-way light switches, and all of the wiring configurations will depend on where the incoming circuit power is located and once that is identified the rest of the three way wiring connections are straight forward. The diagram below is based on the video you watched above. 3 Way Switch Diagrams for Multiple Light Fixtures. Then watch the longer video below to see how to connect all the wires.ģ Way Switch Wiring Video What is a 3 Way Switch Wiring Diagram?Ī 3-way switch wiring diagram is a simple drawing showing how to connect the wires to each of the four screws on the 3-way switch. Watch this very short 11-second video to see exactly WHAT a 3-Way switch is. 14/3 with ground or 12/3 with ground wire best to use between switches.This is where two switches control the same light (or lights). continuous hot and light feed wire goes on black screw Here is our selection of three way light switch circuit diagrams. ![]() The most important screw is the black one." 3 Way Switch Diagram TIPS "A 3-way switch has three screws plus the green grounding screw. 3-way switch diagram requires you to look for this all-important black screw.
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