House Wiring Diagram 3 Way Switch. A three-way switch is built and. Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway.
In standard house wiring (North America) the incoming power leads are usually black (hot). Typically used for hallways and staircases, three-way switches are used in instances where two separate switches control one. The three-way switch is a variation of the standard single-pole switch, which controls a light only from one location.
A three-way switch is built and.
I will add my "Rules of Thumb for wiring switches" I use in my class.
Information: Catalog and Supplier Database for Engineering and Industrial Professionals. Three-way switches often control one light fixture at both ends of a hallway. The wiring is more complicated than a traditional single-pole switch, but we'll explain that, too.