Formerly it was operated by Yugoslav Railways under designation JŽ series 641.

This class has nickname "Mađarica" (Hungarian girl) as they were produced in Hungary.

[1][2] Originally JŽ series 641 was known as MÁV M44, similar to PKP class SM41.

First four locomotives were delivered to Yugoslav industry - two to "Đuro Salaj" paper factory from Krško, Slovenia, one to UNIS factory from Vogošća, Bosnia and Herzegovina, and one to Glogovac nickel mine at Kosovo.

There are today 13 locomotives of this series operated by Serbian Railways.