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Spanish electric locomotive class
Renfe Class 251
A Class 251 hauling a freight train in January 2016
The Renfe Class 251 is a class of electric locomotives operated by Renfe in Spain. They are aesthetically and conceptually based on the JNR Class EF66 operated in Japan, but they have many differences in mechanical design and power output, as well as manufacturers.
Technical specifications
The locomotives have a B-B-B wheel arrangement, and are equipped with monomotor bogies, which have switchable gear ratios. Their maximum axle load is 23 tonnes.
History
The locomotives were introduced in 1982. A total of 30 locomotives have been built. They are mainly used on freight services.
Japanese Class EF66, from which the Class 251 is derived
Harris, Ken, ed. (2005). Jane's World Railways 2005-2006 (47th ed.). Jane's Information Group. p. 415. ISBN0 7106 2710 6.
^ Ross, David; et al. (2007). The Encyclopedia of Trains & Locomotives (Paperback ed.). Amber Books. p. 476. ISBN978-1-905704-45-3.
Further reading
"Locomotoras eléctricas 250 y 251" [Electric locomotives 250 and 251] (PDF). Vía Libre (in Spanish). Fundación de los Ferrocarriles Españoles. June 2005. pp. 107–114. Archived from the original (PDF) on 2007-09-27.