High-Reliability Power Electronics

Industrial & Railway DC/DC Converters

Ruggedized, high-efficiency DC/DC conversion modules spanning 40 W to 40 kW+. Engineered to perform under extreme ambient temperatures, heavy vibration, and strict EN 50155 railway standards.

Featured Product Portfolio

Standard & Modular DC/DC Conversion Platforms

From compact board-mount modules to heavy-duty high-voltage sub-systems, our DC/DC converters provide continuous galvanic isolation, wide input windows, and reliable thermal performance.

CPM-40K 40 kW High-Voltage Isolated DC/DC Converter Module
CPM-40K Series

40 kW High-Voltage Isolated DC/DC Converter

High-power density isolated module designed for high-voltage DC networks, energy storage integration, and industrial microgrids.

  • Power Rating: 40 kW
  • Input Voltage: 200 – 900 Vdc
  • Output Voltage: 150 – 1000 Vdc
  • Cooling: Forced air-cooling
CMS-2000 E-Mobility 2000W DC/DC Converter
CMS-2000 Series

2000 W E-Mobility DC/DC Converter

Features an extra-wide input range tailored for commercial electric vehicles, heavy transportation, and demanding industrial drives.

  • Power Rating: 2000 W
  • Input Voltage: 180 – 950 Vdc
  • Output Voltage: 14 Vdc / 28 Vdc
  • Cooling: Baseplate or Liquid cooling
CLS-150 Railway 150W DC/DC Converter
CLS-150 Series

Railway 150 W Ultra-Wide Input Converter

EN 50155 certified converter with ultra-wide input voltage ratio designed for rolling stock control circuits and signaling systems.

  • Power Rating: 150 W
  • Input Voltage: 16.8 – 137.5 Vdc
  • Output Voltage: 24 Vdc
  • Cooling: Natural convection
CLS-300 Railway 300W DC/DC Converter
CLS-300 Series

Railway 300 W High-Reliability DC/DC Unit

Engineered for harsh operating environments, featuring galvanic isolation, surge withstand, and continuous full-load operational safety.

  • Power Rating: 300 W
  • Input Voltage: 16.8 – 137.5 Vdc
  • Output Voltage: 24 Vdc – 110 Vdc
  • Cooling: Natural convection
CBS-10K Railway 10kW Peak DC/DC Converter
CBS-10K Series

Railway 10 kW Peak Power DC/DC Converter

Compact high-power converter capable of sourcing high peak currents for door actuators, braking systems, and heavy pulse loads.

  • Peak Power: Up to 10 kW (3.5 kW Cont.)
  • Input Voltage: 16.8 – 138 Vdc
  • Output Voltage: 500 Vdc
  • Cooling: Internal forced air
CRS-2000 Industrial & Railway 2000W DC/DC Converter
CRS-2000 Series

Industrial & Railway 2000 W Fanless Converter

Robust 2 kW power converter delivering high efficiency without moving mechanical parts, ensuring extended MTBF in sealed enclosures.

  • Power Rating: 2000 W
  • Input Voltage: 14.4 – 154 Vdc
  • Output Voltage: 21.6 – 126.5 Vdc
  • Cooling: Natural convection
CVS-280 Railway Low Battery Voltage Starter
CVS-280 Series

Railway 280 W Low-Battery Starter Converter

High-voltage catenary starter unit operating directly from 600/750 Vdc lines to revive depleted battery banks on trains.

  • Power Rating: 280 W
  • Input Voltage: 400 – 1100 Vdc (600/750 V nominal)
  • Output Voltage: 24 / 48 / 72 / 110 Vdc
  • Cooling: Natural convection
CRS-1000 Railway and Industrial 1000W DC/DC Converter
CRS-1000 Series

Industrial & Railway 1000 W DC/DC System

Benchmarked for exceptional thermal dynamics, achieving up to 94% efficiency for heavy industrial machinery and wayside rail cabinets.

  • Power Rating: 1000 W
  • Input Voltage: 14.4 – 144 Vdc
  • Output Voltage: 21.6 – 126.5 Vdc
  • Cooling: Conduction / Forced Air
CRS-500 Industrial & Railway 500W DC/DC Converter
CRS-500 Series

Industrial & Railway 500 W DC/DC Unit

Proven design with extensive field service history. Combines compact dimensions with wide input windows and galvanic isolation.

  • Power Rating: 500 W
  • Input Voltage: 14.4 – 144 Vdc
  • Output Voltage: 21.6 – 120 Vdc
  • Cooling: Natural convection
Engineering Rigor & Compliance

Built for Mission-Critical Environments Since 1981

With over four decades of power electronics expertise in Barcelona, Premium PSU engineers standard and bespoke DC/DC systems that eliminate downtime risk for international OEMs and system integrators.

High Efficiency & Thermal Management

Thermal management is at the heart of our design philosophy. Platforms such as the CRS-500 and CRS-1000 series achieve up to 94% operating efficiency, dramatically reducing heat output and component degradation.

  • Input windows spanning from 14.4 Vdc to 950 Vdc across product lines
  • Standard regulated DC outputs: 5 V, 12 V, 24 V, 48 V, 72 V, and 110 Vdc
  • Convection, conduction, baseplate, and liquid cooling options
  • Operating temperature ranges qualified up to +85 °C

Full Compliance with International Railway Norms

All railway-dedicated DC/DC converters undergo exhaustive in-house and third-party qualification campaigns to guarantee compliance with global transport regulatory mandates.

  • EN 50155: Railway applications – Rolling stock electronic equipment
  • EN 45545-2: Fire protection on railway vehicles (HL3 qualified)
  • EN 61373: Shock and vibration testing for rolling stock
  • EN 50124-1: Insulation coordination and galvanic safety
Product Selection Matrix

DC/DC Converter Range Specifications

Review key technical capabilities across our standard DC/DC power conversion platforms.

Series Power Rating Input Voltage Range Output Voltages Cooling Primary Target Markets
CPM-40K 40 kW 200 – 900 Vdc 150 – 1000 Vdc Forced Air Industrial Microgrids / Energy
CMS-2000 2000 W 180 – 950 Vdc 14 V / 28 Vdc Baseplate / Liquid E-Mobility / Heavy Transport
CRS-2000 2000 W 14.4 – 154 Vdc 24 – 110 Vdc Natural Convection Railway Rolling Stock / Automation
CBS-10K 10 kW Peak 16.8 – 138 Vdc 500 Vdc Internal Forced Air Railway Brakes & Actuators
CRS-1000 1000 W 14.4 – 144 Vdc 24, 48, 72, 110 Vdc Conduction / Fan Industrial & Wayside Rail
CVS-280 280 W 400 – 1100 Vdc 24, 48, 72, 110 Vdc Natural Convection Catenary Low-Battery Starter
Technical FAQ

Frequently Asked Technical Questions

Can Premium PSU manufacture custom DC/DC converters for proprietary input voltages?
Yes. In addition to our catalogue of over 260 standard products, custom DC/DC converter design is a core strength. Having developed over 1,000 custom power designs in the past 40 years, our engineering team can adapt magnetics, mechanical housing, thermal pathways, and control logic to match your precise application requirements.
What thermal protection features are built into your DC/DC converters?
Our converters feature overtemperature protection with automatic recovery, derating curves tailored for ambient temperatures up to +85 °C, and high-efficiency topologies that minimize localized heat dissipation.
Are 3D STEP models and full test reports available for engineering integration?
Yes. We supply 3D CAD STEP files, detailed datasheet electrical characteristics, type test reports, and MTBF calculations upon request to support system-level design and mechanical modeling.
How do you manage component obsolescence for long-term programs?
We support 15 to 25 year program life cycles for railway and defense assets through strict component traceability, proactive PCN/EOL monitoring, redesign capabilities, and guaranteed form-fit-function replacement availability.

Require Detailed Engineering Specifications or Technical Documentation?

Request our complete DC/DC Converter Product Catalog or speak directly with our senior application engineers in Barcelona to evaluate your project requirements.

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