Different Ways To Wire A 3 Way Switch. Each three-way switch has two hot terminals, like a conventional switch, as well as an extra terminal that connects it to the other switch. Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway.
Three-way switches allow you to control lights or receptacles Four-way switches are very similar in design to three-ways and are used to control lights or receptacles from three or more switch locations. A three-way switch has three terminals, and the switch connects the first terminal to either the second or the third terminal, as shown here If you are trying to understand how a set of switches are wired in your house, using an ohmmeter or a continuity detector is the only way to reverse-engineer what. These diagrams illustrate how to wire a pair of three-way light switches in three different situations.
According to job specifications, the boxes in this demonstration are.
A three-way switch is built and.
There are many different wiring diagrams for switched circuits, including three-way and four-way switching, and these diagrams have guided electricians and others for decades. But that's on a different page. How do three way switches work?