Crl 3 Way Switch Wiring Diagram. The red wire in the cable is known as the traveler, and it connects to the black terminal screws on the pair of switches. Don't forget the Wire, Solder, Shielding & Supplies.
The red wire in the cable is known as the traveler, and it connects to the black terminal screws on the pair of switches. Three-way switch wiring requires the use of a three-conductor cable to connect the two switches. You MUST follow the instructions exactly.
Mounting screws and switch tips are sold separately.
There are several possibilities depending on where the power source enters the circuit.
Click diagram to view full size. Step-by-step instructions and troubleshooting guides included. While standard single-pole switches have two screw terminals on one side of the switch, plus a third green grounding screw terminal connected to the metal strap, three-way switches have three screw.