DBAG Class 425

The Classes 425 and 426 EMUs are a class of electric multiple units built by a consortium of Siemens, Bombardier and DWA and operated by DB Regio in Germany. They are essentially the same vehicle, but the class 425 EMU consists of four segments, while the class 426 EMUs only have two parts.

DBAG Class 425 (and 435) / 426
Type and origin
Power typeElectric
BuilderBombardier, Siemens and DWA (consortium)
Build date1999-2008
Total produced249 / 43
Specifications
Configuration:
​
 • UICBo'(Bo')(2')(Bo')Bo' resp.
Bo'(A+A)'(2')(A+A)'Bo' (425)
Bo'(2')Bo' (426)
Gauge1,435 mm (4 ft 8 1⁄2 in) standard gauge
Driver dia.850 mm (33.46 in)
Length67.5 m (221 ft 5 in) / 36.49 m (119 ft 9 in)
Loco weight114 t / 63.2 t (62.2 long tons; 69.7 short tons)
Electric system/s15 kV 16.7 Hz AC
Current pickup(s)Pantograph
Performance figures
Maximum speed140 km/h (87 mph)
Power output425: 2,350 kW (3,150 hp) / 426: 1,175 kW (1,576 hp)
Tractive effortBR 425: 140 kN / BR 426: 70 kN
Career
Nicknames"Quietschie"
LocaleGermany

Description
Class 426 is shorter than class 425

It is a high-powered, light-weight vehicle with high acceleration for short- and medium-distance services with frequent stops. The aluminium superstructure was built as flat as possible, both to minimize drag and to ease automated cleaning. The acceleration is achieved by distributing traction motors among eight of the train's ten axles including two of the three jacobs bogies.

It is based on the Class 423 design, but lacks a third set of doorways in the centre of each car.

See also
  • Express Rail Link, a Malaysian railway line which uses trains derived from the ET 425
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