Abstract: An appliance inlet for vehicles includes a contact part or plug which can be connected with an appliance cable in the vehicle and a mounting device for mounting the plug on to a mounting surface in the vehicle. The contact part or the plug is attached through a mounting hole in the mounting surface and is locked by a mounting part designed as an internally threaded housing which engages with external threading on a plug housing so that the appliance inlet is rigidly secured to the mounting surface and with its opening substantially in alignment with the outside, the opening being covered with a cap. The interior of the contact section contains contact pins in the plug, and is connected via drainage slots incised in a wall of the contact section through the mounting surface with drainage slots in the mounting housing so that the interior of the contact section is drained to the outside of the appliance inlet.