These units are originally built by the factory Đuro Đaković from Slavonski Brod for "ŽTP Zagreb" (a Croatian division of Yugoslav Railways; JŽ) in the period between 1981 and 1986.

It consists of two motor cars, each being equipped with a driver's cab and the possibility of control depending on the running direction.

The auto-stop device manufactured by RIZ (Zagreb Radio Industry) has now also been built in.

Also, the reconstruction during the creation of subseries 100 resulted, among other things, in a complete change of interior (replacement of the seats, wall panels, toilet facilities, etc.

In 2010, TŽV Gredelj also began to modernize the sets of the 000 series, which primarily included changing of the interior and only some minor modifications to the exterior, such as adding side and/or front displays.