The white wire becomes the energized switch leg, as indicated by using black or red electrical tape.ĭiagram #3 above, shows the electricity source starting at the right 3-way switch box, The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut. Take the Mystery out of Wiring 3-Way Switches with my New eBook! 3-Way Switch Wiring DiagramsĮasy To Understand Fully Illustrated and Documentedįirst my easy to understand chart helps to identify the 3-way switch system for the application:ģ-Way Switching provides switching from two locationsĭiagram #1 above, shows the electricity source starting at the left 3-way switch.ģ-way switch diagram #2 above, shows the electricity source starting at the fixture. Please contact me if you have any questions or comments regarding the wiring of 3-way switches. See also the wiring diagrams with pictures The frames of the switches which have a ground screw are to be attached to the ground conductor as required. If you are using metal boxes, the ground conductor must be attached to each box by using a threaded ground screw or provided attachment. The ground conductors are always bonded together to insure the integrity of the ground path. The ground conductor is required for all applications as well. These diagrams are shown as using the Romex wiring method. To illustrate the wiring of these 3-way switches, Switch Boxes and Fixture Boxes are not shown but are obviously required for every application. The “travelers” actually pass the electricity between the two 3-way switches, as well as the 4-way switches, shown in the 4-way switching wiring diagrams. The pair of screw terminals at the opposite end of the switch are for the pair of wires known as “travelers”, (also known as “jockeys”). This terminal is usually identified by a darker colored screw. The Power Feed and the Switch Leg leading to the fixture(s) typically, one at each switch location, are attached to the screw terminal found at one end of the switch by itself. This electrical wiring question came from in St. I have run a piece of 12-3 with ground in the conduit that goes from home and new workshop.I want to have a three way switch inside the new workshop and one replacing the single pole that is currently installed for the light outside the door.I would like to set up this light with a three way switch arrangement that will control it and the two lights that are being installed on the porch of the new workshop.I have a outside light by the door going out of the home that is controlled by a single pole switch. Building a new workshop that is detached from home.Wiring 3Way Switches 3-way switches are a convenient way to operate lighting fixtures from two locations.Įlectrical Question: How would this be wired? Three-way Switch Diagrams Fully Explained
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