Three Pole Light Switch. Three-way switches are always used in pairs and allow you to control a light or receptacle from two different locations. That's different from three-way light switches, which you might find in large room or a room with several entrances, where the main So now we've established if you have a single-pole light switch.
When I went to turn on the power it tripped a breaker so I knew For you to have tripped the breaker you must have installed one of the "extra" wires onto the ground terminal.
While they're not as prevalent in the home as single-pole or three-way switches.
Hi all, I am replacing my single pole light switch and noticed when I removed the old switch that there are three black wires coming from the box. Three pole or three-way switches are used to control one or more lights or fixtures from multiple locations, such as the top and bottom of a flight of stairs. These switches are used to set up two and three way Use for dual pole one phase for the switching as the normal switch the other phase is used for light indicator.
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