BORDLINE® M Auxiliary Converters and Battery Chargers


BORDLINE M static converters are compact, lightweight units for the onboard power supplies of rail vehicles. They feature IGBT technology and a rugged mechanical design developed especially to ensure long service life and high availability.

The static converter system BORDLINE M is a solution to convert DC or AC voltage to a three-phase output and/or a regulated DC output.

Product scope 

  • From a few kilowatt to more than a megawatt of on-board power conversion
  • Mono, dual or multi voltage input stages (DC/AC lines)
    • DC range: 350 V to 4200 V
    • AC range: 224 V to 1000 V / 16.7 Hz; 1500 V / 50 Hz
  • Strong references in all vehicle segments such as locomotives, high-speed trains, multiple unit trains, rail coaches of all types, metros, tram-trains, light rail vehicles, tramways, monorails, trolley buses, mountain trains and rack railways
  • Redundant and synchronized systems
  • Auxiliary converters integrated into propulsion systems
  • Liquid, forced air, or natural air cooling system
  • Auto-extinguisher system on demand

Key customer benefits

  • Fast commissioning and homologation
  • High compactness, reliability, robustness
  • Easy and fast maintenance (service-friendly solutions)
  • 100% of production undergo functional testing
  • High level of quality management system (IRIS, ISO 9001, ISO 14001, ISO 18001)

Main applications 

  • Driving AC compressors
  • Driving air compressors
  • Driving cooling fans
  • Charging vehicle batteries