The controlled load is often a lamp, but multiway switching is used to control other electrical loads, such as an electrical outlet, fans, pumps, heaters or other appliances. The electrical load may be permanently hardwired, or plugged into a switched receptacle. Threeway and fourway 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. Thes…
A 3way wall switch controls a common light or set of lights from two separate switch locations. Two, 3way switches are required in any 3way application. This guide highlights the procedures for replacing a broken 3way electrical switch. Before proceeding, make sure you are comfortable working with electrical wires and switches.
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