3 Way And 4 Way Switch Wiring Diagram. Three-way and four-way switches make it possible to control a light from multiple locations, such as the top and bottom of a stairway, either end of a long hallway, or multiple doorways into a large room. Four-way switches are used any time when more than two switches are needed to control a light.
It's easy to do, as well! Follow Dominick as he shows you step by step how to get it right. Three-way wire(which includes red, black and white wires) runs from the switch on the left to the switch on the right, with.
The two traveling wires can be swapped either.
Four-way switches are used any time when more than two switches are needed to control a light.
The tutorial uses the powerful electrical design and simulate software called. Three-way wall switches control a light fixture from two locations in a room. You use two three-way switches to control the light, and wire it up as shown below: In this diagram, a normal piece of wire comes from the fuse panel to the first three-way switch.