Honeywell FC-PSU-UNI2450U Universal Industrial Power Module
The FC-PSU-UNI2450U is a high‑efficiency, universal industrial power supply unit manufactured by Honeywell, designed for critical automation and safety systems. As a core component of Honeywell’s Expert PKS (Process Knowledge System) and Safety Manager (SM) platforms, it converts wide‑range AC input into stable 24 VDC output for controllers, sensors, and I/O modules. It features a compact, rugged design with conformal coating, advanced protection circuits, and comprehensive diagnostic capabilities, ensuring reliable operation in harsh industrial environments. The “UNI” designation signifies its universal input compatibility, supporting global voltage standards.
Intended Use
- Primary Role: Stable DC power source for Honeywell PKS, Safety Manager, and third‑party industrial control systems.
- Core Functions:
- Convert 100–240 VAC (50/60 Hz) to 24 VDC for PLCs, DCS controllers, and field devices.
- Provide overvoltage, overcurrent, short‑circuit, and overtemperature protection for connected loads.
- Support redundant power configurations to eliminate single points of failure.
- Enable system diagnostics via LED indicators (power, fault) and DBM (Diagnostic Bus Module) communication.
- Maintain 72‑hour fault timer for delayed maintenance response in safety‑critical applications.
- Application Goals: Ensure uninterrupted power for critical control loops, minimize downtime, and comply with functional safety standards (e.g., IEC 61508).
Environmental Requirements
| Parameter | Specification |
|---|---|
| Operating Temperature | ‑20°C to +70°C (‑4°F to +158°F) |
| Storage Temperature | ‑40°C to +85°C (‑40°F to +185°F) |
| Relative Humidity | 5%–95% (non‑condensing) |
| Altitude | Up to 3,000 m (9,843 ft) |
| Vibration | 1.0 g (5–500 Hz) (operating) |
| Protection Rating | IP20 (conformal‑coated PCB for dust/moisture resistance) |
| Contamination Class | ISA S71.04 Class G3 (industrial/power plant environments) |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | FC‑PSU‑UNI2450U (V1.0 / V2.1) |
| Manufacturer | Honeywell |
| Input Voltage | 100–240 VAC, 50/60 Hz |
| Output Voltage | 24 VDC (±1%) |
| Output Current | 2.5 A (V2.1) / 5 A (V1.0) |
| Output Power | 60 W (max) |
| Efficiency | ≥90% (V2.1) / ≥85% (V1.0) |
| Protection | Overvoltage, overcurrent, short‑circuit, overtemperature |
| Diagnostics | Power/fault LEDs, DBM interface, 72‑hour fault timer |
| Dimensions (H×W×D) | ~120 mm × 80 mm × 40 mm (4.7 in × 3.1 in × 1.6 in) |
| Weight | ~0.8 kg (1.8 lbs) |
| Certifications | CE, UL 508, IEC 61508 (SIL 2 capable) |
Typical Application Industries
The FC‑PSU‑UNI2450U is deployed in industries relying on Honeywell PKS/Safety Manager and high‑reliability automation:
- Oil & Gas: Offshore platforms, refineries, natural gas processing, and pipeline control.
- Power Generation: Thermal power plants, combined‑cycle facilities, and renewable energy (wind/solar) control systems.
- Chemical & Petrochemical: Batch/continuous processing, reactor control, and safety interlock systems.
- Pharmaceuticals: GMP‑compliant manufacturing, cleanroom automation, and critical process monitoring.
- Water & Wastewater: Treatment plant control, pump station automation, and SCADA systems.
Similar Series Products (Honeywell FC‑Series Power Supplies)
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FC‑PSU‑2450U – Non‑universal input model (115/230 VAC fixed) with identical 24 VDC/5 A output; for regional power standards.
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FC‑PSU‑UNI1220U – Universal input (100–240 VAC) 12 VDC/2 A power supply; for low‑voltage Honeywell I/O modules and HMI panels.
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FC‑PDB‑0824P – 24 VDC power distribution board; complements FC‑PSU‑UNI2450U by providing fused outputs for up to 8 I/O modules。
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