Simple Wiring Diagram For Light Switch. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. Circuit electrical wiring enters the switch box the black wire power in source attaches to one of the switch screw terminals.
In this picture you can see the strip gauge on the back of the switch. Switched outlet wiring diagram. By wiring a 2 way switch the circuit below shows the basic concept of electricity flow to the load.
Instead of running a separate pigtail from the hot wire to each switch just leave the hot wire extra long.
By wiring a 2 way switch the circuit below shows the basic concept of electricity flow to the load. Jan 24 18 02 09 pm. Connect the source wire to the bottom terminal of the switch and the other black wire to the top terminal. Wiring of a light switch is very simple and easy connection.