Two different classes were developed: the Class 403 (domestic ICE 3) and the Class 406 (ICE 3M), the M standing for Mehrsystem (multi-system).
To forskellige typer blev udviklet: DBAG klasse 403 (nationale ICE 3), og DB klasse 406 (ICE 3M), hvor M'et står for Mehrsystem (multi-spænding).