Hamburg U-Bahn Type DT5
German U-Bahn train type operated in Hamburg
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The Type DT5 is an electric multiple unit (EMU) train type operated by the Hamburger Hochbahn AG on the Hamburg U-Bahn system. It is the first type of rolling stock on the Hamburg U-Bahn that has air conditioning and gangways between the individual cars.[1]
| HHA-Baureihe DT5 | |
|---|---|
DT5 304 arriving at Baumwall station, July 2023 | |
| Manufacturers | Alstom & Bombardier |
| Built at | Salzgitter |
| Replaced | Type DT3 |
| Constructed | 2008-2022 |
| Number built | 163 vehicles |
| Formation | 3 cars per trainset |
| Capacity | 336 (96 seated) |
| Operator | Hamburger Hochbahn AG |
| Specifications | |
| Car body construction | Stainless steel |
| Train length | 39,600 mm (129 ft 11 in) |
| Width | 2,600 mm (8 ft 6 in) |
| Doors | 2 pairs per side |
| Maximum speed | 80 km/h (50 mph) |
| Weight | 54,6 t |
| Traction system | Bombardier MITRAC IGBT–VVVF |
| Power output | 135 kW x 6 |
| Electric system | 750 V DC, 3rd rail |
| Current collection | contact shoe |
| Braking systems | Disc brake, regenerative brake |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
Formation
Interior
Technical specifications
The train is built to an articulated design, with the two end cars only having one bogie, while the center car has two bogies.[1] The car bodies are made out of stainless steel, and the trains are powered by three-phase motors.[1] In order to save weight, the DT5 trains use aluminium brake discs, which make a loud squealing sound while braking.[4]
History
A European-Union–wide tender for the construction of the DT5 trains began in 2005.[5] Siemens, Stadler, Rotem and a consortium of Alstom and Bombardier bid for the contract.[1] The trains were ordered in December 2006 from the consortium of Alstom and Bombardier at a cost of €240 million.[1] The first unit was delivered to the Barmbek depot on December 1, 2011.[6] Further DT5 trains were ordered in 2016,[7] 2018[8] and 2019[9] bringing the total number of trains built to 163.[10]
A DT5 train on delivery to the Hennigsdorf testing facility in March 2010
