How Do You Hook Up A Three-Way Electrical Switch?
Controlling a single fixture with two switches is accomplished with a three-way circuit. The configuration takes its name from the fact that the switches have three connecting terminals rather than the traditional two. Three-way switches are convenient when you want to control a single fixture from different locations. Installing a three-way circuit is no more difficult than a normal circuit, provided you keep track of the many wires involved and which connect to which. Cut the openings for the switch boxes using the utility knife or keyhole saw. Attach the switch boxes directly to the drywall. Cut the opening for the fixture junction box. If the box will be in the ceiling, the hole should be large enough to let you attach the box to the bar that will support the fixture between joists. Cut access holes above the switch box holes where the wall and ceiling meet to make feeding the wires easier. Save the drywall pieces for patching later. Feed the fish tape through the access hole above
