Novelty 2025: The robust S499.02 locomotives were created in the mid-1970s as a further development of the class S499.0. Apart from the sides, which were decorated with a wide fan belt to cool the transformer instead of the large windows, the locomotive body was similar to that of the type E 469.3 direct current locomotives. Between 1975 and 1981, 86 units were put into service at ČSD and used in front of both freight and passenger trains. In the 1980s, some of the locomotives were fitted with modern single-arm pantographs and in 1988 they were redesignated as class 242. Digital switching of drivers cab lighting, engine room lighting and running gear lighting by retrofitting a digital decoder | Two metal single-arm pantographs | Detailed fittings in the drivers cabs and engine room | Perfectly framed front windows