HONEYWELL FC-PSU-UNI2450U Safety Manager Universal Power Supply Module

Product Description
FC-PSU-UNI2450U is Honeywell Safety Manager (SMS) SIS universal power supply unit, upgraded successor of FC-PSU-UNI2450. It converts wide-range AC input to regulated 24VDC power for the Safety Manager safety instrumented system rack, providing isolated, diagnostics-enabled power for safety CPU, communication boards and I/O modules. It supports redundant parallel operation for high availability in safety loops and is widely deployed in oil & gas, chemical and power plant safety systems.

Key Features

• Wide AC input: 93–253VAC, 47–63Hz, universal global voltage input
• Output: 24/25/28VDC adjustable, rated 50A, 1200W total output power
• Built-in forced cooling fan, power factor >0.9, efficiency approx 92%
• Full protection: overvoltage OVP, overcurrent OCP, short circuit, overtemperature shutdown
• Dry alarm relay contact for power fault remote notification
• Supports redundant parallel hot backup for no-break safety system operation
• TÜV, UL, CE certified for IEC61508 SIS safety applications
• Rack-mount chassis design, operating ambient -5℃ ~ +70℃
• Part of Honeywell Safety Manager platform; still available as spare and replacement parts

Application Scenarios

• Oil, gas and refinery ESD emergency shutdown safety instrumented systems
• Chemical plant reactor interlock, fire & gas F&G protection systems
• Power plant boiler/turbine safety cabinet power supply
• Offshore platform safety control and pipeline safety systems
• Safety Manager system upgrade and redundant power spare replacement

FAQ

Q: What is the difference between FC-PSU-UNI2450 and FC-PSU-UNI2450U?
A: FC-PSU-UNI2450U is the updated version V2.1, improved dust resistance and longer service life, direct form-fit replacement for older UNI2450.

Q: Can two FC-PSU-UNI2450U run in redundant mode?
A: Yes, dual redundant parallel operation to ensure uninterrupted power for SIS rack.

Q: What is the rated output power?
A: 1200W, 50A max output current for 24VDC safety rack power supply.