High-reliability static transfer switches, DC/DC converters, and heavy-duty inverters engineered for continuous operation in harsh Nordic industrial environments.
12V DC input to 220V AC output continuous 200W cup-holder form-factor converter with dual USB ports & integrated thermal protection for Finnish field service fleets.
Heavy-duty emergency solar converter featuring selectable 50Hz/60Hz single output, ultra-low idle power draw, and surge power tolerance for remote Arctic installations.
Scalable 3W to 90W regulated board-mount converter modules. High dielectric isolation, minimal footprint, and wide operating temperature range (-40°C to +85°C).
Multi-voltage DC input (12V/24V/48V/60V) featuring dual digital parameter displays, intelligent microprocessor control, and real-time fault diagnostic monitoring.
12V/24V to 5V 3A USB step-down converter with epoxy potting. Designed for extreme vibration and moisture resistance in mobile equipment and outdoor sensors.
Field-proven DC/AC inverter series (12V/24V/48V input to 110V/220V AC) with integrated RS485 wireless remote panel for automated utility monitoring.
12V to 48V wide input 40A step-down unit enclosed in a heavy die-cast extruded aluminum shell. IP67 rated for heavy trucks, forklifts, and mining machinery.
High-performance 3kW power conversion platform featuring interactive LCD diagnostic screen, zero-transfer overload protection, and dual-bus redundancy input interface.
In high-availability power architectures, the Static Transfer Switch (STS) represents the definitive line of defense against power interruptions, phase mismatches, and grid transients. Unlike conventional electromechanical Automatic Transfer Switches (ATS), which exhibit inherent mechanical transfer delays between 30 and 100 milliseconds, an advanced SCR-based (Silicon Controlled Rectifier) Static Transfer Switch executes source commutation in under a quarter of a AC cycle (<3.2 milliseconds). This lightning-fast transition guarantees that sensitive computing loads, programmable logic controllers (PLCs), high-voltage switchgear controls, and telecom nodes remain fully energized without experiencing voltage sags or phase disruptions that trigger system reboots.
Our Redundant Static Transfer Switches utilize a Break-Before-Make (BBM) switching topology governed by zero-crossing digital signal processors (DSP). This architecture prevents cross-connection or back-feeding of independent power sources—even when primary and secondary AC sources exhibit significant phase displacement. By combining high-speed anti-parallel thyristor power modules with intelligent voltage-sensing algorithms, our switches continuously monitor source quality, instantly transferring the load the microsecond the primary feed strays outside strict voltage (+/- 10%) or frequency tolerance limits.
| Performance Parameter | Solid-State Static Transfer Switch (STS) | Electromechanical ATS | Nordic Operational Benefit |
|---|---|---|---|
| Transfer Speed | < 3.2 ms (Sub-quarter cycle) | 30 ms to 150 ms | Prevents IT server reboots and PLC drops during grid transients. |
| Switching Element | Solid-State Silicon Controlled Rectifiers (SCR) | Mechanical Contactors / Motorized Switches | Zero physical wear, elimination of arcing, infinite switching cycles. |
| Phase Angle Discrepancy | Managed via intelligent digital phase-sync logic | Risk of massive inrush currents and breaker tripping | Seamless switching between non-synchronized utility and generator feeds. |
| Low-Temp Tolerance | Engineered down to -40°C with cold-start electronics | Mechanical lubricants freeze and lag below -15°C | Uncompromised reliability in unheated outdoor substations in Northern Lapland. |
| MTBF Reliability | > 500,000 Hours | 100,000 Hours (Mechanical stress limited) | Dramatically reduces operational expense (OpEx) for remote unmanned facilities. |
Tailored power conversion and redundancy switching solutions engineered to solve severe environmental and operational challenges in Finland.
Finland has emerged as a premier European hub for cloud data centers due to cool ambient temperatures and clean energy abundance. Our rackmount and cabinet Static Transfer Switches are integrated into 2N transformer distribution units (PDUs), guaranteeing continuous power feed to server racks even during local 10kV switchgear maintenance or district heat recovery switching transitions.
Continuous heavy industrial processes in Tampere, Jyväskylä, and Oulu cannot tolerate micro-outs of power. A 5-millisecond line drop can shut down massive paper machine drives and continuous digesters, resulting in hundreds of thousands of Euros in lost production. Our heavy-duty thyristor STS units provide instant ride-through backup switching for drive controllers and SCADA systems.
With massive wind energy developments along the West Coast of Finland, battery energy storage systems (BESS) require robust power routing. Static transfer switches enable instant switching between local grid feeds, auxiliary battery inverters, and black-start diesel generators, ensuring that sub-station protection systems and cooling pumps remain operational during extreme weather outages.
Supplying continuous auxiliary electrical power for railway signaling along the Main Railway Line (Päärata) and shore power systems in Turku and Helsinki harbors. Our power supplies and transfer modules adhere strictly to EN 50155, EN 50121-3-2, and EN 61373 standards for shock, severe vibration, and electromagnetic interference tolerance.
Municipal combined heat and power (CHP) facilities across Finland utilize our modular power converters and static switches to maintain critical boiler control valves, circulation pump logic, and gas turbines during emergency grid shedding events in sub-zero winter periods.
The Finnish energy sector is undergoing a profound structural transition. Driven by Finland's ambitious target to achieve carbon neutrality by 2035, the national grid operator (Fingrid) is integrating historic volumes of intermittent wind power and distributed renewable assets into the 400 kV and 110 kV transmission lines. This energy shift introduces distinct challenges for facility managers, electrical system designers, and industrial buyers in Finland:
As conventional thermal generation diminishes, power grid rotational inertia drops. This leads to higher frequency volatility (FCR-D / FCR-N events) and localized voltage sags during storm surges in northern territories, making fast sub-cycle transfer switching essential for sensitive industrial plants.
Finnish regulatory directives mandate that large data centers harvest waste heat for municipal district heating. Electrical infrastructure must support dual-source power switching to guarantee heat pump operation even during primary feeder faults.
Equipment deployed in Finnish installations must comply with stringent EU Ecodesign directives, SFS standards, and low-loss energy requirements, favoring high-efficiency SCR solid-state switches (>99.2% operational efficiency) over transformer-heavy legacy topologies.
Outdoor cabinet installations in Lapland and Arctic coastal environments demand specialized conformal coating, internal climate control condensation logic, and silicon thyristors qualified to maintain high-speed switching response at -40°C.
Originating from our state-of-the-art engineering and manufacturing facility in Barcelona, Spain, Premium PSU has spent over four decades establishing global excellence in custom and standard power conversion systems. Our solutions cover power ranges from 50 W to 72 kW in single modules, with parallel modular scalability extending far beyond.
Every Static Transfer Switch and power module undergoes rigorous engineering validation in our certified in-house laboratories. We manage the entire product lifecycle—from magnetic simulation and planar transformer development to climatic chamber thermal cycling and 100% full-load burn-in testing.
Full capability for EMC compliance testing, shock & vibration testing (EN 61373), and climatic profile validation without relying on third-party test schedules.
Decades of experience designing hardware compliant with EN 50155, EN 45545-2 (fire and smoke safety), IEC 61010, and IEC 62368 safety standards.
Rapid custom development workflow: from preliminary specification review to fully certified samples in 16 to 28 weeks using modular topology blocks.
Long-term component monitoring, last-time-buy guarantees, form-fit-function replacement redesigns, and fleet maintenance support across Europe.
Technical guidance and commercial details for Finnish facility engineers, systems integrators, and electrical contractors.
Connect directly with our senior power electronics engineers. Whether you require a standard 16A–800A Static Transfer Switch, an EN 50155 certified railway converter, or a fully customized power system, we provide fast engineering assistance and competitive factory pricing.