3 Wire Switch Loop. This third wire allows power to run to your second switch even if the first one is off. A wide variety of three wire switch options are available to you, such as function, products status, and certification.
A wide variety of three wire switch options are available to you, such as function, products status, and certification. In layman's terms, a switch loop is another term for a wiring circuit created to connect a light fixture to a wall switch. All the diagrams I've looked up online show that there should be two.
Three-way switches & light fixture with duplex receptacle.
Clean end of wire, then bend a loop using needle nose pliers, and put loop under the screw terminal for maximum hold.
If you simply connected the wires from the light to the switch, the light would always be on. Three and four wire devices are more complex transmiters that need more power than can be easily taken from the loop. three-wire cable. Connect the red and black wires.