4 Wire Switch Light Wiring Diagram D Common. Because the electrical code as of the 2011 nec update requires a neutral wire in most new switch boxes a 3 wire cable runs between the light and switch. 4 wire switch light wiring diagram d common.
This setup can be categorized as. This diagram illustrates wiring for one switch to control 2 or more lights. Injunction of 2 wires is generally indicated by black dot at the intersection of two lines.
The red tape on the switch live side of the circuit is shown.
Using the same numbers for the cables as above in the ceiling rose diagrams this is how the junction box would be wired to replicate the circuit. The cable going to the light switch is connected as follows fig 2. The wire strippers should have a spot marked for each gauge wire. Your switch may have slots to push.