4 Wire Wiring Diagram Light. So here i have an older trailer which needed some work along with re wiring the lights. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable g green wire controls fan on auto.
How it works problems testing. 800 x 600 px source. The source hot wire is connected to one switch terminal and the other terminal is connected to the black cable wire running to the light.
If you do not install a relay and use a switch you could end up overheating the switch melting the wires and reducing the current that is getting to your lights making them less bright.
Below are several of the leading drawings we obtain from different sources we hope these pictures will be useful to you and also ideally very appropriate to exactly what you want regarding the 4 wire trailer wiring diagram for lights is. The neutral wire from the source is spliced to the white cable wire and continues on to the light. It may transfer power better therefore the connector is recommended for higher level electric in the vehicle. Brown pin for unwanted markers tail lamps and running lights.