Below is a diagram for the original plug and socket showing the functions of each pin. Plug size is similar to an australian 10c coin.

7 Pin Trailer Connector Wiring Diagram H1 Wiring Diagram
Uk trailer plug wiring diagram. 1st august 2017 by western towing. This report will be talking wiring diagram for 7. In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. If your truck has a built in 7 pin socket but you only need 5 of the pins. The diagram below shows the view from outside the vehicle socket under the flap and from inside the trailer or caravan plug. The 7 pin n type plug and socket is still the most common connector for towing.
All diagrams are as viewed from the cable side. How to wire up a uk trailer lighting plug 1947 duration. The table and diagram below explains the connections used on a 7 pin setup. Wiring diagram for 7 pin trailer plug wiring diagram 7 pin trailer plug ford wiring diagram for 7 pin flat trailer plug wiring diagram for 7 pin round trailer plug folks comprehend that trailer is a car comprised of quite complicated mechanics. This is the standard uk wiring of a the normal socket and plug otherwise known as 12n. In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.
Use this handy trailer wiring diagram for a quick reference for various electrical connections for trailers. 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. This has now been replaced by 13 pin euro plugs on all new caravans. Trailer wiring diagram wiring diagrams for trailers international 1 989 755 0561 toll free 1 800 358 4751 covid 19. Below is the generic schematic of how the wiring goes. This vehicle is designed not only to travel 1 place to another but also to take heavy loads.
4 pin trailer wiring diagram. 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. Above we have describes the main types of trailer wiring diagrams. Use the 7 pin connector anyway see below and just leave out the last 2 wires. This supplies power to the road lighting of your trailer or caravan. Large 7 pin round vic.
There is a noticeably larger gap between 1 and 6 on this plug though some trailer places rotate this connector that the yellow is at the top. To connect the electric system of your trailer to the vehicle you will be using special connector. How to wire a 7 pin trailer plug diagram shown. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket. 12n 7pin trailer caravan lighting wiring diagram. Socket and plug are keyed.