HFE2500 series

1U Rack Mount Modular AC-DC Power Supply

Operating from a universal 85 to 265Vac input, the HFE2500 features high efficiency of up to 93%, which minimises heat dissipation and power consumption. Up to ±20% output voltage adjustment is possible, enabling the HFE2500 to be customer set according to specific needs. Output voltage is programmable by resistance, external voltage or optional PMBus compatible I²C communication interface. Output current is external voltage or optional PM bus programmable.

The HFE2500-12, -24 and -48 power supplies, with dimensions of 325 x 107 x 41mm, can be used individually or up to four units can be mounted into a dedicated 1U rack delivering 10kW. A total of 8 units can be configured in parallel to form a hot swap N+1 redundant power system with single wire current sharing. A keying system prevents mis-insertion of modules into adjacent racks of differing voltage. Each power supply has variable speed, temperature-controlled cooling fans and can operate in temperatures ranging from -10 to +70°C.

Overvoltage, over current and over temperature are standard protection features. For system monitoring, there are signal returns for DC OK, AC-fail, over-temperature and PS exist. Remote ON/OFF control and remote sense are included. Monitoring is also available via the optional PMBus compatible I²C interface and includes a fan fail alarm.

The HFE2500 hot swap front end power supplies comply with EN55022 and FCC part 15 Class A radiated and Class B conducted emissions and meet IEC61000-4-2, -3, -4, -5, -6, -8, and -11 immunity. The power supply units are safety approved to EN/UL 60950-1 edition 2 with CE mark.

Main Features

  • Universal input 85 – 265VAC
  • 2500W 1U Hot Swap Rectifier Modules
  • Isolation diodes for N+1 Redundancy
  • Current share between modules
  • Status monitoring signals
  • Harmonic correction EN61000-3-2 ,Power Factor 0.95
  • EMC EN55022-B, Immunity to EN61000-4
  • International safety approvals EN60950, UL60950
  • Suitable for use in Battery Charging appl. ( >220Vac input)
  • PMbus™ communication interface and LAN options can be requested.

Series Table

Part numberPower (W)Output VoltageOutput CurrentI²C interface

Specifications Table

Input Voltage Range85 – 265VAC, 47 – 63Hz. See model selector for power derating
Input Current (Max) 100/230VAC17 / 12A
Inrush Current<50A
Power Factor CorrectionMeets EN61000-3-2, PF > 0.98 at full load
Hold-up time>10ms, 115/230VAC Input, 80% loading
Remote On/OffUnit ON: 0 – 0.6V or short, OFF: 2 – 15V or open circuit
Parallel OperationYes, single wire current share, 90% accuracy, up to 8 units
AC Fail SignalOpen Collector, ON when AC is within 85 – 270VAC
DC Good SignalOpen Collector, ON when output is above 85 to 95% of setpoint (tracking)
Remote AdjustBy either external 0 – 5V signal or 1k potentiometer
Operating Temperature -10°C to +70°C, derate 2%/°C from 50°C to 60°C, 2.5%/°C from 60°C to 70°C
CoolingTwo variable-speed internal fans, airflow exits across input/output connector
Size (W x H x D)Power Supply: 107 x 41 x 325, Rack: 445 x 44 x 402
WeightPower Supply: 2100g, Rack: 5000g
Warranty3 years

Ask for Assistance

Selecting the right power supply for your application is not a small task. Let our technical sales engineers guide you through the process of choosing the right solution for your needs.

Below some parameters usually required to size and select the right power supply:

  • Power & control requirements
  • Output & Input Voltage / Multioutput Voltage / Variable Voltage
  • Redundancy level
  • Mounting
  • Inrush Current
  • Environmental specifications (Temperature, altitude, vibration, shock)
  • Specific Industries Standards (Railway, Military, Medical)
  • Terminals

Contact Our Team

Contact our team of experienced engineers to discuss your unique power conversion and backup needs. We offer a wide range of highly reliable components that can be integrated and customized to create a solution that meets or exceeds your requirements.

For power automation systems please contact us at power.systems.automation@heliosps.com.au

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