Honeywell FC-PSU-UNI2450U Power Supply Unit

Product Description

The FC-PSU-UNI2450U is a high-capacity universal power supply engineered for the Honeywell Safety Manager and industrial control ecosystems. It converts a wide-range AC input into stable 25 VDC or 28 VDC output, providing reliable power for Safety Instrumented Systems (SIS) and critical automation hardware.

Designed for mission-critical reliability, this unit features dual overvoltage protection and a 100 ms hold-up time, maintaining system operation during brief power dips or grid instabilities. Its robust mechanical design, weighing 5.7 kg, and high efficiency (>87%) make it ideal for dense cabinet installations where thermal management and power density are essential.

Technical Specifications

Performance Advantages

• High Hold-up Time: 100 ms buffer protects against short brownouts or voltage dips

• Thermal Resilience: Operates reliably up to 70°C for dense cabinet or high-ambient applications

• Low EMI/RFI: Minimal ripple (<40 mVpp) ensures stable power to sensitive analog modules and high-speed processors

Technical FAQ

Can the output voltage be adjusted?
Yes. The unit is factory-set to 25 VDC but can be configured for 28 VDC following Honeywell’s system engineering guidelines to ensure compatibility with connected I/O modules.

Is this power supply compatible with redundant configurations?
Yes. The FC-PSU-UNI2450U is commonly used in N+1 redundant pairs within a Safety Manager chassis to maintain continuous power to the safety logic solver if one supply fails.