WHY DO YOU NEED AN ADAPTER FOR TRAILERS

A socket is installed on a car with a trailer coupling, which is used to transmit power to the trailer. This connection ensures that the trailer's lighting system works in parallel with the vehicle's lights. Older cars are often equipped with a 7-pin socket, while newer vehicles have a 13-pin socket. The situation is similar for car trailer plugs. With our mini short adapters, you always have the appropriate connection for your trailer or towing vehicle at hand.

WHICH CAR TRAILER ADAPTERS ARE AVAILABLE

There are two versions of car trailer adapters. One is the 7-pin electrical trailer plug and the other is the 7-pin socket. Both have seven pins or seven sockets. The design and pin assignment are standardised in accordance with ISO 1724. A moulding on the cover of the socket serves as a safeguard against unintentional disconnection. The spring force of the cover thus blocks the plug or its seat in the socket. However, the 7-pin plug connection is rarely used any more. The 7-pin car trailer adapter is also only approved for trailers with a gross vehicle weight of less than 750 kg.

The second type is the 13-pin plug connection according to DIN ISO 11446, where the plug and socket each have 13 pins or sockets. The design and assignment of the contacts is also regulated by ISO 11446. There are two technical differences to the 7-pin electrical trailer plug connection. The additional connections can now also operate the rear fog light and the reversing light. Their function is required by law for trailers over 750 kg gross vehicle weight. There is also improved protection against unintentional disconnection of the plug connection. The 13-pin electrical trailer adapter is rotated 90 degrees in the socket. The spring-loaded cover then ensures that it cannot be turned back.

We also have a standard trailer short adapter especially for trucks (24 volt). This trailer adapter connects the 15-pin socket on the lorry with two 7-pin electrical trailer plugs.