Electrical 3 Way Light Switch. A three-way wall switch is a common type of light switch that makes it possible to control a ceiling light or other electrical fixture from two different Three-way switches are tricky to install, especially for DIYers who are replacing a bad switch. Light switches are simple in design.
The new switch may have the electrical screw connectors in slightly different locations than the switch you're replacing. Diagrams shown on this page are simplified for clarity. This is because the electrical connection either goes from the.
Three-way switches allow you to control lights or receptacles from two points.
Three-way switches are also common in hallways, garages, and kitchens.
Only one of the electrical boxes in a three way circuit is connected directly to. Never work on hot/live electrical circuits. In my case, the old switches had exposed terminals so I made a mental note to tape them later.
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