The Class 422 is a series of four-car electric multiple units that are a derivative of the DBAG Class 423. The two inner cars in the set are designated as Class 432 vehicles.

DBAG Class 422
422 027 at Dortmund-Westerfilde station
ManufacturerAlstom, Bombardier
Constructed2007–2011
Entered service2008
Number built84
OperatorsDeutsche Bahn AG
Lines servedS-Bahn Rhein-Ruhr
Specifications
Car length69.43 metres (227 ft 9+716 in)
Width3,020 millimetres (9 ft 10+78 in)
Height4,033 millimetres (13 ft 2+34 in)
Floor height1,025 millimetres (40.4 in)
Platform height960 mm
Doors12
Maximum speed140 km/h
Weight112t
Power output2,350 kW
Power supplyElectric
Electric system(s)15 kV 16.7 Hz
UIC classificationBo'(Bo')(2')(Bo')Bo'
Braking system(s)Electric, air
Safety system(s)Sifa, PZB
Track gauge1,435 mm (4 ft 8+12 in)

History

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The units were commissioned by Deutsche Bahn in 2005. 78 units worth 343 million were built by Bombardier Transportation and Alstom and delivered between March 2008 and October 2010. They are now used in such places as like on the Rhine-Ruhr S-Bahn which operate in cities like Köln and Düsseldorf as well as the Ruhr area.

Deutsche Bahn uses the units on the Rhine-Ruhr S-Bahn network, unlike most S-Bahn Networks which use similar DBAG Class 423 trains. The inner carriages are called Class 432. Following a timetable change in December of 2019 the units are currently used exclusively on the S1, S4, S5 and S6 lines of the network.