Engineered to withstand extreme vibration, electrical transients, and harsh climatic swings across Serbian rail networks. Every unit features high conversion efficiency, active thermal control, and wide input voltage ranges.
Industrial-grade uninterruptible power supply integrated with long-cycle lithium batteries. Provides seamless switching for rail signals, sub-stations, and metallurgy telemetry.
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Sealed IP68 enclosure engineered with anti-salt mist, anti-mold, and anti-corrosion protection for wayside rail telecom masts and open-line Serbia Corridor X installations.
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Tested to EN 61373 category 1B shock and vibration resistance. Designed specifically for locomotive cabs, bogie mounting, and heavy industrial vehicle power conversion.
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Ultra-reliable continuous power converter providing conditioned DC buses for trackside interlocking systems, ETCS Level 2 signaling, and train dispatch communication towers.
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Compact 1U/2U form factor auxiliary supply delivering 1500W rated power with online double-conversion architecture for rolling stock driver desks and diagnostic racks.
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High-power central facility online power system supporting 380/220VAC inputs, delivering stable clean power to railway data centers, dispatch hubs, and traction sub-stations.
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Features heavy-duty surge and lightning arrestor defense alongside 8000Wh energy storage capacity for isolated Serbian mountainous railway communication posts.
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Optimized for harsh line fluctuations, wide frequency input, and internal heat dissipation. Perfect for specialized rolling stock diagnostic tools and track safety sensors.
Get CatalogSerbia serves as the primary rail transport backbone connecting Central Europe with the Balkans and Piraeus Port. As modern high-speed lines and electrified corridors expand, our EN 50155 DC-DC converters deliver unmatched reliability across four core operational domains.
Operating at speeds up to 200 km/h requires ultra-fast transient response and zero power interruption for European Train Control System (ETCS Level 2) onboard equipment. Our RailQor DC-DC converters step down catenary-derived battery buses (110V continuous) to stable 24V/12V DC outputs for radio cab signaling, GSM-R transceivers, and automatic train protection (ATP) control units.
The modernization of Railway Corridor X through Serbia (connecting Niš, Preševo, and Dimitrovgrad) involves retrofitting trackside signaling cabins with weather-tight power supplies. Our IP68 and conduction-cooled DC-DC modules ensure continuous operation across ambient temperatures from -40°C in mountainous Balkan winters to +85°C inside sealed metal enclosures during summer peaks.
Modern passenger rolling stock commissioned by Železnice Srbije (Serbian Railways) and regional private operators demands high-efficiency auxiliary power conversion. Our synchronous rectifier DC-DC converters power passenger information system (PIS) LED screens, emergency lighting, wiper controls, auto-door actuators, and seat power outlets without inducing audio/visual noise interference.
Railway electrical buses are inherently hostile environment platforms. Rail vehicle power systems experience voltage sags, catastrophic inductive surges, physical shock, and extreme thermal cycling that destroy commercial off-the-shelf power modules.
Railway standards mandate continuous operation under nominal voltages (24V, 48V, 72V, 96V, 110V) with extreme tolerances: 0.7 to 1.25 Times Un continuous, and brownout sags down to 0.6 Un for 100 ms. Our converters utilize a high-frequency two-stage power architecture offering full regulation down to 14.4 Vdc and continuous operation up to 154 Vdc without thermal shutdown.
Catenary switching, pantograph bounce, and inductive relay operations induce high-voltage spikes (up to 1800V for 50 µs according to EN 50155 / RIA 12). Integrated filter modules combined with active clamping circuits suppress fast transients and electromagnetic interference, ensuring full compliance with EN 50121-3-2 without requiring bulky external LC filters.
Conventional converters lose 8-15% of total power through output Schottky diode forward voltage drops. By replacing diodes with actively driven, low RDS(on) MOSFETs, our synchronous rectification technology reduces internal thermal dissipation by up to 50%. This enables full-power conduction cooling on cold-plate aluminum chassis without noisy maintenance-prone cooling fans.
| Electrical & Environmental Parameter | Standard Commercial / Telecom Module | Our Factory-Direct EN 50155 Rail Converters |
|---|---|---|
| Input Voltage Window | 2:1 or 4:1 Ratio (Narrow operating margin) | Ultra-Wide 10:1 Ratio (14.4V to 154V Continuous) |
| Surge & Transient Voltage Handling | Requires extensive external MOV & TVS networks | Integrated Active Transient Suppression (RIA 12 / EN 50155) |
| Operating Temperature Range | -20°C to +60°C (Requires forced air cooling) | Class OT4 (-40°C to +85°C Conduction Cooled) |
| Hold-Up Time Capability | 0 to 2 ms (Causes downstream microprocessor resets) | Class S2 / C1 Compliant (10ms to 30ms Hold-up) |
| Mechanical Shock & Vibration | Standard PCB soldering (Susceptible to micro-cracking) | EN 61373 Cat 1B Body & Bogie Mount Silicone Encapsulated |
| Isolation Voltage | 1500 Vdc Basic Isolation | 3000 Vac / 4200 Vdc Reinforced Isolation |
Driven by national infrastructure modernization mandates and European Union accession alignment, the Serbian railway sector is undergoing a massive transformation.
Serbia is actively eliminating diesel-dominated branch lines in favor of high-voltage 25kV AC overhead catenary systems. This shift requires onboard auxiliary systems to process wider DC battery voltage ranges (72V, 96V, and 110V) with enhanced galvanically isolated power conversion modules to prevent high-voltage leakage into sensitive train electronics.
The modernization of the Belgrade railway node and regional border crossings requires trackside signaling equipment to maintain 99.999% uptime. System integrators across Serbia are mandating redundant DC-DC converter topologies equipped with integrated status telemetry, health monitoring, and remote fault reporting.
While new trainsets (such as Stadler KISS and FLIRT models) are deployed on express lines, hundreds of legacy locomotives and passenger coaches operated by Srbija Voz and Srbija Kargo are undergoing electronics modernization. Direct-fit, half-brick and full-brick EN 50155 converters allow quick retrofitting without redesigning existing chassis geometry.
With decades of dedicated power engineering experience, our quality management systems exceed aerospace and defense rigor, ensuring full product lifecycle support for long-term rail programs.
Every DC-DC module and industrial UPS system is manufactured under rigid quality controls with 100% full-load automated burn-in screening, thermal stress testing, and complete component-level supply chain traceability.
Railway programs remain active for 20 to 30 years. We protect Serbian OEM rail projects by maintaining strict form-fit-function product continuity and offering extended availability guarantees without sudden component EOL disruptions.
Our power application engineering team assists Serbian design engineers directly with thermal derating calculations, EMI filter selection, board layout reviews, and custom output voltage tuning to accelerate time-to-market.
Get quick answers regarding technical standards, export logistics, custom engineering, and compliance documentation for the Serbian market.
Partner with a leading global factory and exporter of high-efficiency EN 50155 railway DC-DC converters and rugged industrial UPS systems serving the Serbian market. Speak with our application engineering team today.
