One is the grounding screw that is green, and the other three are part of the circuit. Turn the power back on and go to the 3. To do this, put a piece of tape.
Old 3, Switch Wiring Nice 2 Pole Light Switch Wiring Diagram Pictures
Best of all, they are easy to install.
It Works By Disrupting The Flow Of.
Notice that the wire connected to the com terminals is looped straight through the intermediate. Two of them are traveler terminals, and. Review home electrical safety tips and ensure you have the proper electrical.