They also provide a wire for a ground connection. Below is a diagram for the original plug and socket showing the functions of each pin.

8 13 Pin Plugs Amp Sockets Home Trailparts
8 pin trailer plug wiring diagram uk. 5 wire trailer wiring diagram. This supplies power to the road lighting of your trailer or caravan. This has now been replaced by 13 pin euro plugs on all new caravans. 3 marsh green road north marsh barton exeter ex2 8ny. As the name implies they use four wires to carry out the vital lighting functions. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket.
Please like and subscribe. In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. An extra pin allows using another extra function. 4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes. 4 way trailer connectors are. Traditional trailer with brakes use a 5 pin connector.
7 pin n type trailer plug wiring diagram duration. Im not lost im rving 81258 views 1521. Adapter converts your 7 way round pin vehicle end connector for use with a 7 way rv style trailer end connector lets you tow a trailer with a 7 way blade plug works with any rv style. The 7 pin n type plug and socket is still the most common connector for towing. 5 way trailer wiring diagram allows basic hookup of the trailer and allows using 3 main lighting functions and 1 extra function that depends on the vehicle. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above.
If you have a 13 pin socket fitted to your vehicle adaptors to plug in so you can use a normal 7 pin plug are available. The four wires control the turn signals brake lights and taillights or running lights. Part 1 of 2 how to properly wire a trailer in the uk using a 7 pin plug. How to wire a 7 pin way trailer plug install a trailer breakaway switch full time rv living duration. You will need twin electrics if you require more power than what a single 7 pin socket can provide on a pre 2008 manufactured uk caravan post 2008 uk caravans are fitted with 13 pin connectors. The table and diagram below explains the connections used on a 7 pin setup.
This adapter plugs into your vehicles 7 way round pin receptacle to adapt it for use with a trailer end 7 way rv style plugthe 7 way flat receptacle includes a hinged cover to keep dirt. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.