description ICE 3 Class 403 Overview
The ICE 3 Class 403 is a German high-speed electric multiple unit used by Deutsche Bahn for passenger service. It entered service around 2000 and uses distributed traction, with traction equipment and powered axles integrated along the train rather than concentrated in separate power cars. This arrangement leaves more usable passenger space and supports high-speed operation on electrified main lines. The Class 403 identifies the domestic ICE 3 trainset family, while the related Class 406 was designed for international services.
help ICE 3 Class 403 FAQ
When was the ICE 3 Class 403 introduced?
Deutsche Bahn introduced the ICE 3, including Class 403 trains, in 2000. The train entered service as Germany's first regular high-speed design intended for 300 km/h operation. [Deutsche Bahn](https://www.bahn.de/service/ueber-uns/zugtypen/ice-3)
What does distributed traction mean on the ICE 3 Class 403?
Instead of putting all traction equipment in two separate power cars, the ICE 3 spreads powered axles across several of its eight cars. That improves acceleration and helps the train handle gradients of up to 40 per mille. [Deutsche Bahn](https://www.bahn.de/service/ueber-uns/zugtypen/ice-3)
Is Class 403 the same as the international ICE 3 Class 406?
No. Class 403 is the domestic German version, while Class 406 is the multi-system version designed for international routes such as the Netherlands, Belgium, and France. Both belong to the ICE 3 family.
How fast was the ICE 3 Class 403 designed to run?
The ICE 3 entered service with a regular top speed of up to 300 km/h. Deutsche Bahn says the train first reached that speed in passenger operation on the Cologne to Rhine-Main high-speed line in 2002. [Deutsche Bahn history](https://www.deutschebahn.com/de/2000-ICE-3-7033062)
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