3 Way Switch Wiring Diagram Electrical Code. Line voltage enters the light fixture outlet box. Electrical outlet boxes can have numerous NM cables going in and out.
Armed with a wiring diagram and the necessary tools, install the boxes that house the switches. These are commonly used for lighting in a stairway where you want a switch on each floor entering the stairway. Diagrams shown on this page are simplified for clarity.
There are several possibilities depending on where the power source enters the circuit.
This is the diagram of what i tried, the other diagram was the same with the red and white in.
Electrical outlet boxes can have numerous NM cables going in and out. Switch box wiring is a common type of wiring used in the house electrical wirings. A three-way switch has three terminals, and the switch connects the first terminal to either the second or the third terminal, as shown here In this diagram, a normal piece of wire comes from the fuse panel to the first three-way switch.