7 pin lighting connections 12n trailer lights in the uk are normallly connected using a 7 pin plug and socket known as a 12n using a black cable. Ensure that there is a good clean earth connection to the vehicle body the 7 pin socket the trailer 7 pin plug and the trailer lamp units.
7 Pin Wiring Diagram Trailer Plug H1 Wiring Diagram
7 pin trailer socket wiring uk. The 7 pin flat plug will fit into a 12 pin flat socket and work perfectly. This is an extension of the 7 pin flat. In the uk trailer lights are normallly connected using a 7 pin plug and socket known as a type 12n. Check and test the fuses on all circuits. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket. This has now been replaced by 13 pin euro plugs on all new caravans.
In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. 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. Wiring diagram for self switching relay on 12s socket. This connector is sometimes present on vintage vehicles and the actual wiring may be completely different from what the standard states which means that measuring before connecting is a good idea. Plug size is similar to an australian 10c coin. This is the standard uk wiring of a the normal socket and plug otherwise known as 12n.
All diagrams are as viewed from the cable side see example above. This supplies power to the road lighting of your trailer or caravan. If you look at a socket or plug you should be able to see the pin lables 1 7. If your truck has a built in 7 pin socket but you only need 5 of the pins. In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. Small 7 pin round qld identifying.
Use the 7 pin connector anyway see below and just leave out the last 2 wires. In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. If you look at a socket or plug you should be able to see the pin lables 1 7. Below is a diagram for the original plug and socket showing the functions of each pin. The diagram below shows the view from outside the vehicle socket under the flap and from inside the trailer or caravan plug. The 5 pin has a design and pin layout that is identical to the 7 pin iso 1724 connector with the exception for the lack of pin 1 l and pin 4 r.
Wiring diagram for double relay on 12s socket. The 7 pin n type plug and socket is still the most common connector for towing.
Gallery of 7 Pin Trailer Socket Wiring Uk
