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The CUI Inc. PSE-850-12 is a high-performance AC-DC hot-swap power supply designed for demanding applications. It delivers up to 850W of continuous power with a 12V output voltage and a maximum current of 71A.
Key electrical specifications include a wide input voltage range of 90-264 VAC, active power factor correction (0.95-0.99), and an efficiency of up to 89% at 230 Vac input and 50% load. The unit also provides a 3.3Vdc standby output at 1A.
Designed for reliability and ease of integration, the PSE-850-12 features I2C communication for monitoring and control, remote on/off capability, and DROOP current sharing for redundant (N+1) operation. It supports hot-swap functionality with blind-mate connections.
The power supply is housed in a 1U x 2U package and is suitable for rack-mount applications. It meets various safety and compliance standards including CE and cTUVus, with emissions compliant to FCC Class A and EN55022 Class A.
The main output voltage is 12 Vdc.
The maximum output current is 71 A.
The input voltage range is 90 to 264 Vac.
The efficiency is typically 89% at 230 Vac input and 50% load.
The PSE-850-12 uses a Front-End package suitable for rack mounting.
The operating temperature range is 0°C to 45°C at 90-132 Vac input, and 0°C to 50°C at 180-264 Vac input.
Yes, the PSE-850-12 supports hot-swap operation with N+1 redundancy.