The Class 425 and Class 426 EMUs are a class of

electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number o ...

s built by a consortium of Siemens, Bombardier and DWA, and are operated by

DB Regio DB Regio AG () is a subsidiary of Deutsche Bahn which operates regional and commuter train services in Germany. It is a 100% subsidiary of the Deutsche Bahn Group and therefore part of the DB Regio business segment, which also includes DB Regionn ...

in Germany. They are essentially the same vehicle design, but the Class 425 EMU consists of four carriages, whereas the Class 426 EMUs only have two carriages. Br 426 plochingen

The class 425 has been produced in

HO scale HO or H0 is a rail transport modelling scale using a 1:87 scale (3.5 mm to 1 foot). It is the most popular scale of model railway in the world. The rails are spaced apart for modelling standard gauge tracks and trains in HO. The ...

by Brawa and

N scale N scale is a popular model railway scale. Depending upon the manufacturer (or country), the scale ranges from 1:148 to 1:160. Effectively the scale is 1:159, 9 mm to , which is the width of standard gauge railway. However the scale may ...

Kato Precision Railroad Models is a Japanese manufacturer of model railroad equipment in N and HO scales. Founded in 1957, the Tokyo-based company manufactures models based on Japanese prototypes (such as the Shinkansen bullet train and Cape gauge A cape is a clothing ac ...

Description

It is a high-powered, light-weight vehicle with high acceleration for short- and medium-distance services with frequent stops. The

aluminium Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

superstructure was built as flat as possible, both to minimize drag and to ease automated cleaning. The acceleration is achieved by distributing

traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, or electric multiple unit trains. Traction (engineering), Traction motors are used in electrically powe ...

s among eight of the train's ten axles. The Class 425 are similar to

Deutsche Bahn (, ; abbreviated as DB or DB AG ) is the national railway company of Germany, and a state-owned enterprise under the control of the German government. Headquartered in the Bahntower in Berlin, it is a joint-stock company ( AG). DB was fou ...

's Class 424 and Class 423 trainsets. A Class 425 unit consists of four cars that share three

jacobs bogie Jacobs bogies (named after Wilhelm Jakobs, 1858–1942, a German Mechanical engineering, mechanical Railway engineering, railway engineer) are a type of Rail transport, rail vehicle bogie commonly found on Articulated car, articulated railcars an ...

s and can only be separated at maintenance facilities. The inner two cars are designated as Class 435. A 425 unit typically consists of the following cars, where ''x'' is the unit's number: * 425 x * 435 x * 435 (x+500) * 425 (x+500) e.g. 425 153 + 435 153 + 435 653 + 425 653. Different consists usually occur when the remains of partially destroyed units are combined to form one intact EMU.

References

{{German EMUs Electric multiple units of Germany Articulated passenger trains Bombardier Transportation multiple units 15 kV AC multiple units Siemens multiple units 25 kV AC multiple units Electric multiple units of Malaysia Train-related introductions in 1999

Description

See also

References