DRG Kleinlokomotive Class I

They were placed in service by the Deutsche Reichsbahn (DRG) after trials had been carried out on several prototype locomotives in 1930.

After the Deutsche Reichsbahn had initially obtained several trials locomotives in 1930, it took delivery of production Kleinloks in 1931 and split them into two classes or 'power groups'.

They were not permitted to leave the station, because they were too light to achieve reliable rail contact.

In order to be able to use home-produced fuels, from 1942 to 1945 many locomotives were converted and driven on liquefied petroleum gas (LPG).

In the Deutsche Reichsbahn there was an attempt to introduce a standard engine type, otherwise there were only minor modifications.

Some of the retirements were officially called conversions; actually a new Class II locomotive was built by the Dessau shop (Reichsbahnausbesserungswerk or Raw).