SU45 is a Polish diesel locomotive. It had been made for universal use: heavy transport or passenger transport alike.
History
This locomotive is in fact a SP45 with a modified heating system – a steam boiler was replaced by an electric heating system. During 2010 4 locomotives were rebuilt to class ST45.
In 2020, the last locomotive for passenger use from national operators was retired, and the two remaining are in use of private companies.
Production
Nicknames
These locos used to be called by the following names: Fiat - because of the diesel engine licensed by Fiat Suka (eng. bitch) - from the two first letters of the code name