House Wiring Diagram Plug Outlet 3 Way Switch 3 Way Switch. The wiring method will depend on whether your power goes to the switch first or the light first. 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.
Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
The most basic three-way switch setup has two switches that connect and control one light fixture, like Specifically these are hard wired lights, not merely lamps plugged into outlets.
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Wiring a 3-Way Switch
3-way Switch Wiring - Electrical 101
A DPDT panel mount switch with preattached polarity reversing bars. Right now, each switch is functioning like a single pole, turning on/off the string of outlets rather than controlling the outlets as intended. Three-way switches often control one light fixture at both ends of a hallway.