From 1963 a total of 257 machines were built from the universal electric locomotive series 1042. From 1966, stronger engines were installed in order to reach a maximum speed of 150 km/h. These locomotives were given the series designation 1042.5. By the installation of a resistance brake they received characteristic roof structures and reversed single-arm pantographs as compared to the locomotives delivered earlier. They were used mainly for all types of train but mainly before fast travel and goods trains, also cross-border to Germany.The 1042,645 was assembled at Simmering-Graz-Pauker in Graz under serial number 71120, while Siemens held the spring guide for the electrical part. After delivery in March 1975, she was domiciled in Vienna-South.This text is machine translated.