The white wire becomes the energized switch leg as indicated by using black or red electrical tape. The black hot wire connects to the far right switchs common terminal.
3 Way Switch Variations
3 way switch diagram. In this diagram the electrical source is at the first switch and the. 3 way switch wiring diagram. 3 way switch wiring with. In this diagram power enters the fixture box. All three way switch and 2 way switch wiring diagrams have the same basic components. A 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.
If you are trying to troubleshoot a 3 way switch operation then you will need to identify the function of each wire. 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. The basic 3 way switch wiring diagram this is the most common and the easiest wiring diagram to follow of any of the wiring diagrams for a 3 way switch circuit. 3 way switch wiring diagrams wiring diagram 3 way switch with light at the end. The source in this circuit is at the first switch and the light fixture is. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box.
All of the switches shown below are 3 way. This wire diagram shows the wiring for source power into the first three way switch then 3 wire cable to the next 3 way light switch and then on to the light or light fixtures. What is the black screw for on a 3 way switch diagram. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. 3 way switch diagram 2 above shows the electricity source starting at the fixture. Three way switch wiring with light middle.
Take a closer look at a 3 way switch wiring diagram. With these diagrams below it will take the guess work out of wiring. This might seem intimidating but it does not have to be. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. Traveler wires are interchangeable on each switch.
With conventional wiring the common wire from one switch connects to line the common wire from the other switch connects to the load lights. Fixture between two three way switches. Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch. Typical 3 way switch wiring nm cable. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut. 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.
The diagram below is based on the video you watched above. The black line wire connects to the common terminal of the first 3 way switch. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. 3 way switches have three terminals one common usually black color and one pair of travelers usually brass color. Electricians call the continuous hot wire the line wire. Red and blue wires link traveler terminals of both switches.
Gallery of 3 Way Switch Diagram
