Electric locomotive 185 142 of Deutsche Bahn. The TRAXX AC1 is a series of electric locomotives primarily developed for freight transport. The name TRAXX stands for "Transnational Railway Applications with eXtreme fleXibility." The series 185.1, directly derived from the series 145, is now designed to operate on both of the common alternating current systems in Europe: 15 kV/16 2/3 Hz and 25 kV/50 Hz. With a weight of 84 tons, it delivers a continuous power output of 5.6 MW and is approved for speeds of up to 140 km/h. For cross-border operations, the locomotives have been equipped with various country-specific packages. 65 locomotives (185 085 – 185 149) were delivered with the Swiss country package. From May 2007, 185 142 was in operation with a striking Edelweiss design.