How to Wire a Single Light Switch - Diagram 2 How to Wire a Single Light Switch - Diagram 2 . Single pole switch diagram #2 This switch wiring diagram shows the power source starting at the fixture box. The white wire of the romex going to the switch is attached to the black line in the fixture box using a wirenut. 2 Pole toggle Switch Wiring Diagram | Free Wiring Diagram Collection of 2 pole toggle switch wiring diagram. A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. It shows the elements of the circuit as simplified forms, and the power and signal links between the gadgets. two way light switch wiring diagram - YouTube Click to view on Bing3:09two way light switch wiring How to install a two way light switch How do you wire a 2 way switch? Either way, complete these five steps for 3 way light switch wiring:Author: RYB ELECTRICALViews: 85K Wiring Diagram for Light Switch : Electrical Online Here is a wiring diagram for a light switch (four way light switch). It is possible that you may encounter a double pole light switch within the home, but these are not very common in a residential setting. These switches have four terminals as well, but the terminals are identified as “line” and “load”.