Trailer connectors in Europe

This means that if a towing vehicle has an outlet of this type it should be able to connect a trailer with a standard 7-pin or 5-pin connector according to ISO 1724, provided that the trailer coupling follows the standard and that the trailer plug casing is not made of metal since a metal plug will otherwise short the extra pins.

Both connectors have the same electrical wiring[2][3][4] and can be found primarily in the Netherlands and Germany.

The following supplementary information exists for the connector: These connectors are specially developed by sv:Djurle Industri AB (DIAB) for severe conditions where snow, ice and salt are common.

Moreover, they are "self-disconnecting" to lower the risk of damage to the connector if the driver should forget to disconnect the plug when disconnecting the trailer or the trailer jumps off the hook.

These connectors occur primarily in Scandinavia, but vendors exist in the United States, Belgium and Great Britain, which means that they can be found outside Scandinavia as well.