PFHI 1K-FXW High Input Voltage, Wide Input Range AC-DC power supplies, Active PFC

AC-DC Power Supplies, Fan cooled, Industrial Solutions, Latest News, PFC-input, Wide Input Range

1kW High Input Voltage AC-DC Power Supplies with Active Power Factor Correction (PFC) for industrial applications

High input voltage, wide input voltage range AC-DC power supplies with active power factor correction meet the EN61000-3-2 directive for low input harmonic distortion

AC-DC redundant power supply with active PFC provides a rugged, reliable 3kW solution for railway applications

High input voltage, wide input voltage range, AC-DC power supplies with active power factor correction (PFC) deliver up to 1000W output power. (Click on photo for generic data sheet)

The PFHI 1K-FXW series of high input voltage, wide input range AC-DC switched-mode power supplies with active power factor correction (PFC) are designed for 1kW industrial applications.

The power supplies operate over a 180V to 480V AC-input range; 400Vac nominal input.  With available outputs of 24Vdc/40A, 48Vdc/20A, 110Vdc/9A or 125Vdc/8A, the units deliver up to 1kW output power. Custom input/output voltages are available.

An optional built-in redundancy diode allows for parallel connection to achieve higher output power or N+1 redundancy, and also makes the unit suitable for battery charging applications.

Active Power Factor Correction (PFC)

The PFHI 1K-FXW units employ active power factor correction, which limits input current harmonics to achieve a PFC rating of 0.97 at full load for the entire input range. All power supplies in the series comply with the EN61000-3-2 directive for low input harmonic distortion. Hold-up time is 5ms min at nominal input for 5% drop of the output voltage.

Industrial safety standards, EMI and comprehensive electronic protection 

The PFHI 1K-FXW power supplies are designed for compliance with EN/UL60950-1 and equivalent industrial safety standards. Filtering on the input and output contributes to low output ripple and noise. The input meets EN55032 Class A with wide margins; Class B is available as an option. Full isolation includes 4300Vdc input to output, 3000VDC input to chassis and 1300VDC output to chassis. Other protection features include inrush current limiting, rectangular current limiting with short-circuit protection, thermal shutdown in case of insufficient cooling, and output over-voltage protection.


Cooling is by high quality built-in fans and by conduction via the baseplate, which provide sufficient cooling for operation over a 0°C to +50°C temperature range for full specification without derating. Wider temperature ranges are available on request. All heat generating components are installed on aluminum heatsink blocks which are thermally connected to the base plate.

Rugged mechanical construction

The PFHI 1K-FXW units are ruggedly constructed and designed to withstand high levels of shock and vibration (IEC 61373 Cat 1 A&B);  this ensures reliable operation in harsh environments. The internal board is conformal coated for immunity to moisture, humidity and airborne contaminants. The FXW size chassis measures 185.4 x 69.3 x 351 mm / 7.3″ x 2.7″ x 13.8″ (W x H x D). FXW mechanical outline drawing.

OEM of custom and customized power supply solutions

ABSOPULSE Electronics is an original equipment manufacturer (OEM) of an extensive range of rugged industrial and railway quality power conversion solutions. We specialize in fully custom solutions. All of our existing designs can also be modified to meet customer application requirements.

Key Specifications

  • 1000W industrial quality AC-DC power supply;
  • High AC-input voltage: 400Vac;
  • Wide AC-input voltage range: 180-480Vac operating range;
  • DC-output voltage: 24Vdc/40A, 48Vdc/20A, 110Vdc/9A, 125Vdc/8A or custom;
  • N+1 redundancy available as option;
  • High efficiency: 80% min. at full load (output voltage dependent);
  • Active power factor correction (PFC) on input;
  • Power factor meets EN61000-3-2;
  • EMI: EN55032 Class A with wide margins; Class B available;
  • Ruggedized to withstand shock and vibration (IEC61373 Cat 1 A&B);
  • Conformal coated internal boards;
  • 0°C to +50°C operating temperature range;
  • Forced air cooling by high quality built-in DC-fans;
  • FXW chassis: 185.4 x 69.3 x 351 mm (7.3″ x 2.7″ x 13.8″) W x H x D, dimensions exclude connectors.

PFHI 1K-FXW Generic Data Sheet

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