HŽ series 6112 is a class of low-floor

electrical multiple units An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number ...

manufactured by the Croatian company Končar - Electric Vehicles (), operated by

Croatian Railways Croatian Railways ( hr, Hrvatske željeznice; abbreviated as HŽ) is the national railway company of Croatia. Croatia is a member of the International Union of Railways (UIC). The UIC Country Code for Croatia is 78. The Croatian rail network carr ...

( hr, hrvatske željeznice, HŽ) and the

Railways of the Federation of Bosnia and Herzegovina Željeznice Federacije Bosne i Hercegovine''Željeznice'' stands for "railways" (ŽFBiH) is the railway company of the Federation of Bosnia and Herzegovina. It is one of the two rail companies of Bosnia and Herzegovina (the other is the ŽRS, ope ...

. A total of 55 units are to be manufactured for Croatian Railways by 2024, with the first units being produced in 2011. The

also ordered one intercity train, with no indication of ordering additional units. Croatian Railways operates their fleet on suburban, regional and

InterCity InterCity (commonly abbreviated ''IC'' on timetables and tickets) is the classification applied to certain long-distance passenger train services in Europe. Such trains (in contrast to regional, local, or commuter trains) generally call at m ...

routes. The prototype made its first test run on the

Zagreb Zagreb ( , , , ) is the capital and largest city of Croatia. It is in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain. Zagreb stands near the international border between Croatia and Slov ...

–

Dugo Selo Dugo Selo is a town in Zagreb County, Croatia. Geography Dugo Selo (lit. ''Long Village'') is a 20 km drive from Zagreb city centre. The town covers an area of 51 km² and it consists of numerous settlements. The summit of the hill M ...

line on July 3, 2011. The construction, design and driving characteristics of the low-floor electric train enable optimized operations and improved passenger comfort on regional services depending upon the length of the route. Passenger space is uniform along the entire train, without partitions and stairs. Floor height is optimal for 550 mm high platforms. Depending on the configuration, the trains are equipped with four doors (regional configuration) or eight doors (suburban configuration). All trains are equipped with air conditioning for both the driver's cab and passenger compartment. The main frame is a four-part welded steel construction linked with joints. The body consists of aluminum sandwich panels and windows. All bogies are equipped with air suspension systems, and two side drive bogies, while three free bogies are of the Jacobs type. Three-phase asynchronous traction motors, fed from an electronic IGBT inverter provide high acceleration at start-up and a maximum speed of 160 km/h. The steering and diagnostic system is a microprocessor system that links the train subsystems with modern communication protocols that allow for linking up to three trains into one.

Sub-series (Croatian Railways)

Croatian Railways operates the following subseries of the 6112: *Sub-series 6 112 0xx represents the units for regional services manufactured between 2011 and the first half of 2022. A total of 17 units were built. *Sub-series 6 112 1xx represents the units for suburban services manufactured between 2011 and 2021. A total of 17 units were built. *Sub-series 6 112 2xx represents the units for suburban services manufactured between the second half of 2022 and 2023. A total of 11 units were built. *Sub-series 6 112 3xx represents the units for regional services manufactured between 2023 and 2024. A total of 10 units are to be produced, with two units delivered as of August 2023. Sub-series 200 and 300 appear to be slightly different than those from initial sub-series (000 and 100), mainly involving minor differences in painting schemes and the curvature of the front. Units painted with red stripes indicate regional units, while units with blue stripes indicate units with a suburban interior configuration. The prototype units have significantly different liveries, with the regional prototype unit (6 112 001) having a combination of white, gray and a red stripe and the suburban prototype unit (6 112 101) having a design close to the current suburban sub-series livery. All sub-series are fully compatible with each other for mutual

coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end mov ...

while in service.

Main characteristics of EMU (Electric Multiple Unit)

* bright, passenger-friendly interior with customized design * end-to-end walk-through passenger compartment, with no steps * up to 8 doors on each side for rapid passenger access * air-conditioned passenger and driver compartments * system for audio and video information for the passengers * vacuum toilet-system, also suitable for disabled persons * ergonomically designed driver's cab * welded steel construction, glued aluminium sandwich panels * glass-fibre reinforced front section with automatic coupling * air-suspended bogies * redundant traction chain with IGBT power converters * microprocessor vehicle control system with train bus and diagnostic * multiple-unit control of up to three vehicles * providing of the free wireless internet (WiFi) to passengers

Gallery

File:HZ 6112 001-0 1.jpg, Regional prototype unit 6112 001 at Innotrans in Berlin File:J32 018 Bf Ogulin, 6 112 101.jpg, Suburban prototype unit 6112 101 File:J32 847 Bf Zagreb gl. k., 6 112 110.jpg, Production series suburban unit 6112 110

References

http://www.koncar-kev.hr/docs/koncarkevEN/documents/24/2_1/Original.pdf {{DEFAULTSORT:HZ series 6112 6111 25 kV AC multiple units Train-related introductions in 2011