AC-DC power supply with 3-phase, high voltage input

9th October 2013
Nat Bowers

ABSOPULSE Electronics has today announced the introduction of the HVI 3K series AC-DC power supplies. Designed for 3-phase, high voltage ac-input requirements, they are suitable for various industrial applications including servo drives, factory automation, and industrial machinery and equipment.

The 3kW power supplies operate from a 480Vac, 3-phase line input and deliver any single output voltage between 24V and 600Vdc. A DC-input version which accepts any voltage between 500V and 800Vdc is also available.

To ensure high reliability and long operating life, all critical components on the primary side are designed and tested for corona inception levels significantly higher than the operating voltage. The input and output are filtered for low noise. The input meets EN55022 Class A conducted and radiated requirements with wide margins. The power supplies comply with EN/UL60950-1 and equivalent industrial safety standards. Full electronic protection eliminates the possibility of failure due to abnormal operating conditions, including application errors.

The supplies are ruggedized and all printed circuits are conformal coated, providing immunity to shock, vibration (IEC 61373 Categories 1 A&B) and moisture. Heavy ruggedizing can be provided to ensure reliable operation under severe environmental conditions. The sturdy enclosure has a total footprint of 187 x 132 x 407mm. Cooling is by high quality built-in fans.

The units are built with three, heavy-duty internal power modules. A built-in redundancy diode separates each module and allows for a number of units to be connected in parallel to achieve higher output power, or N+1 redundancy.

Key features:

  • Input: 3-phase, 480Vac,
  • DC-input in 500V to 800Vdc range available,
  • Output: any voltage between 24V and 600Vdc,
  • High input isolation - 5600V type test,
  • 3 internal modules separated by built-in redundancy diodes,
  • Modules separated by built-in redundancy diodes,
  • Parallel connection or N+1 redundancy possible,
  • Low noise,
  • Complies with EN/UL60950-1 and equivalent,
  • Cooling by high quality built-in fans,
  • Ruggedized and printed circuits conformal coated,
  • 80% min. efficiency at full load,
  • Full electronic protection.

Please contact ABSOPULSE for pricing and availability.

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