The class 406 designates those ICE trains that are used as four-system trains, particularly in cross border passenger service. The class 403 by contrast is designed as a single system train for operation with 15,000 volts at 16 2/3 hertz. These trains are authorized to travel at speeds up to 330 km/h or 206 mph, and they shorten travel times especially on the newly constructed routes. Externally, they differ from the class 406 in the arrangement of the pantographs and the roof arrangement. The 8-part unit has a total length of 200 meters or 656 feet 2 inches with seating for 415 passengers. The weight of the train when not loaded is 409 metric tons.