Serbia’s state passenger rail operator Srbijavoz has signed a contract with Siemens Mobility Austria for six new Vectron multisystem electric locomotives, opening another front in a rolling-stock investment programme that is increasingly shifting from basic fleet replacement towards rebuilding Serbia’s international passenger connections with Central and south-eastern Europe.
The six locomotives are scheduled for delivery in June and July 2027, putting them into the Srbijavoz fleet around the time of EXPO 2027 Belgrade. While the exhibition has accelerated investment across Serbia’s transport system, the commercial logic behind the Vectron purchase extends well beyond the three-month event. The locomotives are designed principally for locomotive-hauled passenger trains on Serbia’s electrified network and international routes where different electrical and signalling systems have historically made cross-border operations more complicated.
Srbijavoz acting director Ljubiša Pejičić said the company intends to deploy the locomotives on services towards Budapest, with Vienna and other European destinations identified as potential subsequent markets once international timetables and infrastructure permit. Serbia is therefore buying more than replacement traction: it is acquiring equipment capable of operating through multiple national rail systems without changing locomotives at borders.
The procurement was initially estimated at RSD4.69bn, or around €40mn, giving a headline value of approximately €6.7mn per locomotive. That simple unit calculation overstates the cost of the rolling stock itself because the tender also includes maintenance and associated support. The specification called for maintenance over at least eight years or 1.2mn kilometres, together with staff training, while the required minimum operating life of the locomotives is 30 years.
That lifecycle structure is economically important. Rail operators often make acquisition decisions based not simply on upfront CAPEX but on availability, maintenance cost, spare-parts support and the risk that specialised rolling stock becomes increasingly expensive to keep in service as fleets age. Serbia’s existing locomotive base demonstrates precisely that problem. Srbijavoz says some of the locomotives currently used for passenger services are more than 40 years old, with reliability and service quality deteriorating as maintenance requirements increase.
Replacing ageing traction with a modern platform should therefore affect OPEX as well as service quality. New locomotives generally require less corrective maintenance during the early part of their operating life, offer better diagnostics and energy management, and reduce the probability that a passenger service is cancelled because a locomotive is unavailable. The value of that reliability is particularly high on international trains, where a technical failure can disrupt paths across several national railway networks rather than a single domestic timetable.
Siemens Vectron is already one of Europe’s most widely deployed locomotive platforms. Multisystem versions are available with power of up to 6.4 MW and speeds of up to 200km/h, and can be configured with national signalling packages together with the European Train Control System, ETCS. Siemens has progressively secured operating approvals for the platform across much of continental Europe, giving operators considerably more flexibility than older single-system locomotives.
For Serbia, that interoperability is more consequential than maximum speed. Locomotive-hauled trains leaving Serbia can encounter different electrical systems, train-protection requirements and operating rules as they move through Hungary, Austria, Croatia, Slovenia or other European networks. A multisystem locomotive reduces the operational friction created by those differences and makes it easier for Srbijavoz to participate directly in international services rather than depending on locomotive exchanges at national borders.
The original tender reflected that ambition. The locomotives were envisaged for potential operation not only in Serbia, but also across Montenegro, Croatia, Slovenia, North Macedonia, Hungary, Bulgaria, Germany, Austria, Slovakia, the Czech Republic and Greece. The technical requirements included authorisation for operation in at least Germany, Austria and Hungary, three markets central to Serbia’s most obvious northbound passenger corridor.
That makes the timing of the order particularly relevant to the Belgrade–Budapest railway. Serbia has completed and brought into operation its modernised domestic section as far as Subotica, but direct high-speed passenger services between Belgrade and Budapest have still been waiting for completion of testing and operational procedures on the Hungarian side. As of August 2026, Serbian and Hungarian authorities were targeting the next phase of testing after 24 August, with passenger operations expected to follow once technical requirements are completed. (Ekapija)
Plans for the 2026/27 timetable have gone considerably further than a simple Budapest connection. Proposed services include multiple daily trains between Belgrade and the Hungarian capital, while some planned international trains would continue towards Vienna. That would restore a rail axis that once formed one of Belgrade’s principal overland connections with Central Europe but has been fragmented for years by infrastructure reconstruction, border procedures and inconsistent international services.
The six Vectrons fit naturally into that network strategy. Srbijavoz’s existing high-speed electric multiple units work well on fixed domestic routes where the complete train operates as an integrated set. Locomotives offer a different kind of flexibility. They can haul different combinations of passenger coaches, sleeping cars and potentially international rolling stock depending on route, demand and bilateral operating arrangements.
That distinction matters as Serbia rebuilds longer-distance services.
Domestic high-speed travel between Belgrade, Novi Sad and Subotica can increasingly be handled by modern electric multiple units. Overnight and international routes towards Montenegro, Hungary, Austria or other European destinations can require locomotive-hauled formations because operators need more flexibility in train length, sleeping accommodation, cross-border equipment and carriage-sharing arrangements.
The Siemens contract therefore fills a gap that could not be addressed simply by purchasing more suburban or regional trains.
It also sits inside a much larger rolling-stock investment cycle. Srbijavoz and the Serbian government have contracted nine CRRC electric multiple units for the new Belgrade urban and suburban railway serving the EXPO and National Stadium corridor. That contract is valued at €73.98mn, with four units scheduled for delivery during 2026 and the remaining five by February 2027.
A much larger procurement followed in March 2026, when Spanish manufacturer CAF secured the contract for 30 Civity electric multiple units for the BG Voz suburban network. The contract value exceeds €300mn, with three-car trains offering capacity for 546 passengers, including 204 seats, and a maximum operating speed of 120km/h. Financing includes sovereign-backed credit arrangements, including export-credit support linked to Spain.
Adding the Siemens locomotives, the nine Chinese trains and the CAF fleet produces headline rolling-stock commitments comfortably above €400mn. The contracts are not directly comparable because maintenance packages, financing structures and delivery schedules differ, but the scale demonstrates that Serbia is no longer dealing with isolated replacement purchases. It is rebuilding several segments of the passenger rail fleet simultaneously.
The Vectron order also has an important precedent inside Serbia.
Srbija Kargo, the state freight operator, began purchasing Siemens Vectron multisystem locomotives in 2018. The initial contract covered eight units for almost €32mn, financed through the European Bank for Reconstruction and Development, and the order was subsequently expanded to 16 locomotives. Those machines gave the Serbian freight operator modern cross-border traction for routes linking Serbia with Central European markets.
Srbijavoz is effectively extending that technological platform into passenger transport. This creates potential operational advantages because Serbia already has domestic experience with Vectron locomotives, even though the freight and passenger companies are legally separate operators. Technical familiarity, maintenance capability and the presence of an installed Siemens support base can reduce some of the implementation risk associated with introducing an entirely unfamiliar locomotive family.
Siemens also has an industrial footprint in Serbia. The company operates manufacturing activities near Kragujevac, although the six Srbijavoz locomotives themselves will be built at Siemens Mobility’s Munich-Allach plant in Germany. The German facility is the main production centre for Vectron, with bogie and component production integrated into Siemens Mobility’s wider European manufacturing network.
The Serbian contract is small in Siemens terms. Six locomotives represent only a fraction of a platform installed across European freight and passenger fleets. That scale, however, is one of the procurement’s advantages for Srbijavoz. Serbia is buying a mature product rather than becoming the launch customer for a specialised locomotive designed around a small national fleet.
Standardisation lowers technological risk.
A platform used by numerous operators across Europe typically benefits from deeper spare-parts availability, established maintenance procedures, driver-training infrastructure and a wider aftermarket. It can also retain greater residual value because the locomotive is potentially usable by multiple rail operators or leasing companies rather than becoming commercially stranded if the original operator changes strategy.
The minimum 30-year operating-life requirement makes this particularly important. A locomotive arriving in Serbia in 2027 could theoretically remain in commercial service well into the 2050s. Procurement decisions therefore need to anticipate several generations of signalling systems, route changes and international interoperability requirements.
ETCS compatibility becomes critical in that context. European railways are gradually moving towards the standardised European signalling system as part of broader efforts to reduce the fragmented technical barriers that have historically weakened rail’s competitiveness against road and aviation. Serbia’s main international corridors are increasingly being modernised with the same architecture.
Modern infrastructure without compatible rolling stock would leave part of that investment underutilised.
Serbia has already spent heavily on railway reconstruction. The Belgrade–Novi Sad–Subotica corridor has transformed the quality of passenger rail in northern Serbia, while additional investment is under way on routes linking the capital with Niš and on the future railway towards Nikola Tesla Airport and the National Stadium. Rolling-stock modernisation is the necessary second half of that infrastructure cycle.
The economics become more demanding from this point.
New track can cut journey times, but passenger volumes increase sustainably only when operators deliver sufficient frequency, reliability and connectivity. A technically modern railway that offers only one or two inconvenient international departures each day will struggle to capture significant market share from cars, buses and airlines.
Six locomotives are therefore enough to restart selected services but not enough to transform Serbia’s entire international network.
That makes utilisation central to the return on the approximately €40mn procurement. The strongest commercial outcome would see the Vectrons working intensively on high-demand international corridors, covering large annual mileages and replacing locomotives that currently generate high maintenance costs. Low utilisation would make the same investment much less attractive because depreciation and financing costs would be spread across fewer passenger kilometres.
The maintenance element helps shift part of that risk towards the supplier. Siemens Mobility said the contract involves comprehensive maintenance support intended to secure locomotive availability and performance. That structure resembles the increasingly common European model in which manufacturers sell availability rather than simply hardware, aligning part of their revenue with long-term fleet performance.
For Srbijavoz, predictability matters because its economics remain influenced by public-service obligations and state support. Passenger rail operators rarely evaluate rolling stock purely through ticket revenue. Wider economic benefits include reduced road congestion, lower emissions, improved regional labour mobility and stronger connectivity between commercial centres.
International rail adds tourism and business-travel effects.
A reliable Belgrade–Budapest–Vienna corridor would connect Serbia directly with two of Central Europe’s strongest tourism and business markets. Budapest and Vienna also function as onward rail hubs towards Germany, the Czech Republic, Slovakia, Switzerland and western Europe. For Serbian travellers, that would restore journey options that have largely disappeared during the long reconstruction of the northbound corridor.
EXPO 2027 gives Serbia a deadline, but not the underlying rationale.
The exhibition is scheduled from 15 May to 15 August 2027, meaning the announced June-July delivery of the Siemens locomotives comes during rather than substantially before the event. Their importance to EXPO itself may consequently be more limited than their association with the broader rail-modernisation programme suggests. The dedicated CRRC trains for the airport and National Stadium corridor are much more directly tied to exhibition transport.
The Vectrons should instead be judged against the 2030s international rail network Serbia is trying to build.
Their arrival will coincide with a period in which the country expects the Belgrade–Budapest corridor to be fully operational, the Belgrade–Niš railway to be undergoing major modernisation and the BG Voz network to be expanding with new CAF trains. That creates a more coherent passenger-rail system than Serbia has had for decades.
The investment also changes the commercial question facing Srbijavoz. Ageing locomotives make discussions about expanding European routes largely theoretical because reliability constrains what the operator can promise. Modern multisystem traction removes part of that constraint.
It does not remove the other barriers.
Cross-border passenger rail still depends on bilateral timetables, border and customs procedures, track-access arrangements, suitable coaches, train paths and commercial agreements with foreign operators. Locomotives capable of reaching Vienna are valuable only when Serbia, Hungary and Austria agree on a service that passengers actually want to use.
The Budapest corridor will provide the first test.
The proposed timetable implies substantially greater service intensity than Serbia has offered internationally in recent years. Successful operation would give Srbijavoz a platform for gradually extending its network northwards while also strengthening the commercial case for additional modern locomotives.
Six Vectrons should therefore be read as an initial fleet rather than a definitive solution.
At roughly €40mn including long-term maintenance and support, the procurement is small beside Serbia’s multibillion-euro railway infrastructure programme and its more than €300mn CAF suburban-train contract. Yet its strategic value is disproportionately large because it targets one of the remaining weak links in the network: reliable cross-border traction.
Serbia has already demonstrated with Srbija Kargo’s 16 Vectrons that modern multisystem locomotives can be integrated into its rail sector. Bringing the same platform into passenger operations turns that earlier freight investment into a broader technological ecosystem.
The most visible change for passengers should arrive in 2027, when locomotives built in Munich replace machines that have been operating for more than four decades. The more important measure will come later, in the number of kilometres those locomotives accumulate between Belgrade and European cities.
A fleet that spends the next three decades moving intensively between Belgrade, Budapest, Vienna and other regional capitals would make the €40mn investment comparatively modest against the connectivity it unlocks. The Siemens order gives Srbijavoz the traction capability for that expansion; international timetables, infrastructure completion and passenger demand will determine whether Serbia converts the hardware into a genuinely European rail network.
