12 s 7 pin wiring diagram twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket. 7 pin s type plugs and sockets are usually used on caravans to supply power to the reverse light and give auxiliary power to other systems such as fridges internal lights and charging systems.
13 Pin Socket Wiring Diagram 12 Plug H1 Wiring Diagram
Caravan 7 pin socket wiring. Caravan 12s 7pin socket plug wiring 1st august 2017 by western towing this is the standard uk wiring of a the supplementary socket and plug otherwise known as 12s. Some diagrams show the blue wire to be the brake others for the fridge fog lights or open etc. There are some important differences in the 12s socket wiring in caravans manufactured prior to 1999 and after 1999. This was replaced in 2008 by the 13 pin euro plug on all new caravans. The 7 pin socket on my vehicle does not have the blue wire. The 12s cable sizes for post 1999 models have been increased to reduce voltage drop and improve load capacity.
The wiring on the caravan socket has the blue wire connected. 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. If you look at a socket or plug you should be able to see the pin lables 1 7. How to wire a 7 pin 12 s type caravan plug. In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. How to wire a 7 pin 12 n type trailercaravan plug in the uk trailer lights are normallly connected using a 7 pin plug and socket known as a type 12n.
The car charge line blue cable is now left unused the caravan battery. The caravan does not have a 12v system and it appears that the blue wire is for the brake lights.
