Locomotives / Train Sets

DB Class 612

Diesel, Tilting Locomotive

Entry Last Edited: 01/17/2024 | Content ©www.RailRoadJunction.net | The following text is exclusive to this site.
Specifications [+]
Some 192 total trainsets were built by Adtranz from1998 into 2003 - the series also known as the RegioSwinger.
The DBAG BR 612 ("RegioSwinger") is a diesel-powered high-speed train originating in Germany. At its core, the design is a two-car "Diesel Multiple Unit" (DMU) constructed across 192 total tain sets from the period spanning 1998 to 2003 (first under the Adtranz brand label now falling under Bombardier). The type is recognized for its "tilting" feature, allowing it to maintain relatively high speeds in turns while retaining passenger comfort and safety.

It was developed as a direct successor to the earlier DB Class 611 DMU line of 1996-1997 (50 units built).

The train serves multiple Deutsche Bahn regions across Germany including Bayern, Nordrhein-Westfalen, and Sudwest and typically seen in its red-white livery along un-electrified lines. The unit is powered by a Cummins QSK19 which serves as its prime mover (the engines are integrated into the carriages, as such, no dedicated locomotive is needed), the diesel unit rated at 750 horsepower output. With this arrangement, the train can reach speeds of 99 miles-per-hour (160kmh). The transmission relies on a hydraulic design and the braking system is detailed as KE-R-A-Mg-H.

Its UIC axles classification arrangement is detailed as 2'B'+2'B'. The driver sits at front-center with a commanding view of the track ahead. The sides of the power cars and passenger cars are lined with large rectangular viewing windows. As the unit is of diesel power, it does not rely on an electrified track nor overhead catenary assembly to draw power from.

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Specifications [ DB Class 612 ]

Adtranz (original); Bombardier Transportation - Germany

1998 - 2003
Production Run

192 units
Production Total
Train driver seating position graphic

Driver Position
8.6m | 28.3 ft
NOTE: May include length of entire train set
19,833 kg
(43,732 lb | 22 US Tons)
Locomotive power source graphical icon
Diesel, Tilting
Power Source
Cummins QSK19 diesel engine of 750 horsepower output.
Engine / Drive Source
750 hp
Rated Output Power
160.0 kph
(99.4 mph)
Max Speed
Wheel Arrangement
(Loco Facing Left)


Safety Systems
Series Variants
Class 612 - Base Series Designation.
HZ 7123 - Croatian Railways designation.
Operating Countries
Croatia (as HZ 7123); Germany

National flag of Croatia National flag of modern Germany
Customers / Operators:
Croatian Railways; Deutsche Bahn
NOTE: Includes both past and present

Image of the DB Class 612

Image of the DB Class 612
Starboard side color profile of the DB Class 612 diesel tilting locomotive.
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