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.