3 Way Switch Wiring Diagram Power At Outlet. Three-way switch wiring where power connects to first switch and then the light. These are commonly used for lighting in a stairway where you want a switch on each floor entering the stairway.
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. Don't forget the Wire, Solder, Shielding & Supplies. How to Connect a Portable Generator to a House.
Three-way switches allow you to control lights or receptacles from two points.
Depending on where the switch will be in the circuit layout, the purpose of this common connection is to deliver electrical current from the power source.
The figure below shows the simplest possible configuration Three-way switches often control one light fixture at both ends of a hallway. Fixture between two three way switches. How to Connect a Portable Generator to a House.