The fleet consisted of 35 Class 250 locomotives, numbered 250 001-035, and five Class 250.6 locomotives, numbered 250 601-605, which are equipped with chopper control.
The locomotives were introduced in 1982. A total of 40 locomotives have been built. They were mainly used on Rail [freight transport|freight services] by Renfe's Cargas freight and Transporte Combinadointermodaldivisions.