If you look at a socket or plug you should be able to see the pin lables 1 7. In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.
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Trailer plug wiring diagram uk. Trailer caravan brake adjustment. How to replace bpw brake shoes. In the uk trailer lights are normallly connected using a 7 pin plug and socket known as a type 12n. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket. Large 7 pin round vic. Caravan trailer 13 pin wiring chart.
All diagrams are as viewed from the cable side. Socket and plug are keyed. Caravan 12s 7pin socket plug wiring. The 7 pin n type plug and socket is still the most common connector for towing. This supplies power to the road lighting of your trailer or caravan. 12n 7pin trailer caravan lighting wiring diagram.
This has now been replaced by 13 pin euro plugs on all new caravans. 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. Alko bowden cable. Below is a diagram for the original plug and socket showing the functions of each pin. Autoreverse brake exploded diagrams. 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. Use the 7 pin connector anyway see below and just leave out the last 2 wires. 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. Plug size is similar to an australian 10c coin.
Gallery of Trailer Plug Wiring Diagram Uk
