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The FC-PSU-UNI2450U is a high-capacity, industrial-grade power supply unit designed for the Honeywell Safety Manager system. This universal PSU converts AC mains voltage into a stable 25 Vdc or 28 Vdc output, supplying reliable power to safety processors and I/O modules.
Engineered for process continuity, it features dual overvoltage protection and a 100 ms hold-up time, ensuring momentary power fluctuations do not trigger unnecessary safety system trips.
| Specification | Details |
|---|---|
| Part Number | FC-PSU-UNI2450U |
| Equipment Type | Universal Power Supply Unit (PSU) |
| Input Voltage Range | 110–240 Vac (wide-range) |
| Line Frequency | 47–63 Hz |
| Efficiency | >87% at 230 Vac |
| No-Load Consumption | 13 W |
| Inrush Current | < 15 A |
| Nominal Output | 25 Vdc (default) or 28 Vdc |
| Output Stability | < 40 mVpp ripple and noise |
| Backup Performance | 100 ms hold-up time at maximum load |
| Operating Temperature | –5°C to +70°C (23°F to +158°F) |
| Physical Weight | 5.7 kg |
The FC-PSU-UNI2450U is built for high-availability SIS applications, such as Emergency Shutdown (ESD) and Fire & Gas (F&G) systems. Its design includes:
Dual-layer overvoltage protection for downstream electronics
Wide operating temperature range for industrial cabinet environments
CID2 certification, making it suitable for installation in hazardous locations
High hold-up time (100 ms) to ride through brief power dips
These features ensure continuous, safe power delivery under demanding industrial conditions.
Q: How does the FC-PSU-UNI2450U handle brief power interruptions?
A: The unit has high-capacity internal capacitors providing a 100 ms hold-up, allowing the system to maintain power and continue executing safety logic during short voltage dips.
Q: Is this power supply suitable for hazardous locations?
A: Yes, the FC-PSU-UNI2450U is CID2 (Class I Division 2) certified, making it safe for installation in areas with flammable gases or vapors under abnormal conditions.