Learn how to Wire A Cooper Three-Way Rocker Switch
Wiring a Cooper three-way rocker switch means running a three-wire cable with ground between two three-way switches. There are eight different ways to wire three-way switches. The first relies on how the source electricity enters the three-way system, where the switches are located inside the three-way system and the variety of fixtures the three-way system is controlling. Three-way switches are wider than single-pole switches and include an additional terminal on one side of the switch housing.
Things You will Need
12-3 cable with ground
Needle nose pliers
Turn the breaker in the electrical panel controlling the flow of electricity to the light switch off. Measure the space between the two switches, add about 24 inches and then add 30 percent. Cut the 12-3 cable with ground at that measurement with lineman’s pliers. A hacksaw works well instead if lineman’s pliers aren’t available.
Run the cable from the first switch box to the second. Strip 10 inches of the outer covering off with a utility knife. Feed the wires through the switch box so you could have not less than six inches coming out from the box.
Strip the insulation from each of the wires to reveal one inch of bare wire. Bend the bare wire ends over to form a “U” shape with needle nose pliers. There are three wires coming to this box from the power source. They’re black, white and green or bare. Feed these wires through the switch box as well.
Hook the top of the black wire from the ability source around the top terminal screw on the 2-terminal side of the three-way switch with a secure it with a screwdriver. Secure the black wire from the 12-3 cable to the remaining terminal on the two-terminal side of the switch. Hook the red wire from the 12-3 cable to the terminal on the other side of the switch from the black wires.
Stick the bare ends of the ground wires right into a wire nut. Twist the nut in a clockwise direction until it’s tight. Wrap the open end of the wire nut with electrical tape. Repeat this with the white wires.
Connect the second three-way switch in the same manner as the first. However, instead of getting three wires from the power source, they exit this switch box and travel to the fixture. The black wire going to fixture connects to the highest terminal on the two-terminal side of the three-way switch.
Push the surplus wire into the switch box. Secure the switches to the switch boxes with the screwdriver. Install the switch cover plates on both switches. Turn the breaker on.
Tips & Warnings
Push the excess wire into the switch box with the rubber handle of a screwdriver.
Never work with live electricity.
The house Improvement Web: Install a three-Way Switch