A multiple-unit train or multiple unit (MU) is a self-propelled train. It has one or more carriages joined, which when joined to another multiple unit can be controlled by a single driver,[1] with multiple-unit train control.

A Deutsche Bahn ICE 3 EMU capable of up to 320 km/h (199 mph) in Rhineland-Palatinate, Germany
The Transwa Prospector DEMU is capable of speeds up to 200 km/h (124 mph), and provides a passenger service between Perth and the mining town of Kalgoorlie in Australia.


  1. "Rulebook Master: Glossary of Railway Terminology, Train Working "Coupled in multiple - Traction units coupled to allow through controls by one driver"" (PDF). RSSB. Archived from the original (PDF) on 10 August 2018. Retrieved 28 September 2017.