A contact device for a fast charging system for electrically driven vehicles includes a charging contact device disposable on a vehicle floor, the contact device having a contact unit carrier with contact units electrically connectable to a respective charging contact of the charging contact device to form a contact pair, the contact device or the charging contact device including a positioning device, the contact units positionable relative to the charging contacts by the positioning device to form an electrically conductive connection between the vehicle and a stationary charging station, the contact device being disposable on a ground below the vehicle, the contact device having a base frame attachable to the ground, the contact unit carrier being inserted into the base frame, the contact unit carrier being made of a dielectric material, the contact units each having a contact element moveable relative to the contact unit carrier.