HONEYWELL FC-PSU-UNI2450U

Description

Product Description

The HONEYWELL FC-PSU-UNI2450U is a universal, DIN-rail mounted power supply unit designed for Honeywell’s Experion Process Knowledge System (PKS) and other control platforms. This unit serves as a critical and reliable source of conditioned 24V DC power for field devices, I/O modules, and other low-voltage components within a distributed control system (DCS) enclosure. Engineered for high efficiency and robust performance, the FC-PSU-UNI2450U ensures stable voltage delivery even under fluctuating AC input conditions, which is fundamental for the integrity of sensitive electronic controls. Integrating the HONEYWELL FC-PSU-UNI2450U into your control panel architecture provides a certified and dependable power backbone.The design and safety features of the HONEYWELL FC-PSU-UNI2450U make it a preferred choice for both new installations and as a direct replacement in legacy Honeywell systems.

Product Parameters

• Manufacturer / Brand: Honeywell

• Product Type: Universal Switching Power Supply

• Model: FC-PSU-UNI2450U

• Input Voltage Range: Universal AC input, typically 85-264V AC, 47-63 Hz. May also support 120-370V DC input.

• Output Voltage: 24V DC, regulated.

• Output Current / Power: Rated for up to 10A continuous current, providing approximately 240W of output power.

• Efficiency: High efficiency rating (e.g., >90%) to minimize heat generation and energy loss.

• Protections: Includes standard protections: overload (constant current limiting), overvoltage, and short circuit. Features overtemperature protection with automatic recovery.

• Cooling: Convection cooled (fanless) design for silent operation and higher reliability by eliminating a moving part.

• Mounting: Standard DIN-rail mounting (EN 50022, 35mm).

• Certifications: Complies with major international standards for industrial, ITE, and household environments (e.g., UL, cUL, CE, ATEX for specific variants).

• Indicators: LED indicators for power on and output status.

Advantages and Features

• Wide Input Voltage Range: The universal input of the HONEYWELL FC-PSU-UNI2450U allows it to be deployed globally without hardware changes, automatically adapting to local mains voltages and tolerating significant sags or surges.

• High Reliability and MTBF: Designed with quality components and a fanless design, it offers a high Mean Time Between Failures (MTBF), which is crucial for minimizing unplanned downtime in continuous processes.

• Clean and Stable Output: Provides a tightly regulated and low-ripple DC output, which is essential for the proper operation of sensitive analog I/O modules, transmitters, and communication devices.

• Compact and Efficient: Its high efficiency reduces thermal stress on components and the need for excessive panel cooling, while its compact form factor saves valuable space in control cabinets.

• System Integration and Recognition: As a Honeywell-branded component, the FC-PSU-UNI2450U is fully recognized and supported within Honeywell’s Experion PKS and legacy TPS/TDC3000 system documentation and maintenance procedures, simplifying engineering and procurement.

Application Cases in Application Fields

• Process Plant DCS Cabinets: In an oil refinery, multiple HONEYWELL FC-PSU-UNI2450U units are installed in distributed field enclosures to provide dedicated, clean power to Honeywell C300 Controller I/O modules and connected field transmitters.

• Safety Instrumented System (SIS) Panels: Used within a Safety Manager or FSC system cabinet to power the logic solvers and isolated input/output cards, where power integrity is critical for safety function availability.

• Motor Control Centers (MCCs: Provides reliable 24V DC control power for intelligent motor protectors, communication gateways, and local HMI devices within an MCC section.

• Packaged Equipment Skids: For vendor-supplied compressor or pump skids, this power supply is specified to ensure compatibility and reliable power for the Honeywell control components integrated into the package.

Comparisons with Competing Products

When compared to generic 24V industrial power supplies or offerings from other automation vendors, the HONEYWELL FC-PSU-UNI2450U holds specific advantages:

• Brand-Specific Integration vs. Generic: While generic supplies function, the HONEYWELL FC-PSU-UNI2450U is part of Honeywell’s certified hardware ecosystem. It is tested and validated for use in their safety-rated and high-availability systems, which is often a requirement for plant standards and may be necessary to maintain system certifications.

• Performance and Quality Consistency: It offers a guaranteed level of performance, ripple, and transient response that matches the expectations of Honeywell’s sensitive control electronics, which may not be assured with all third-party supplies.

• Global Support and Availability: Sourcing this specific model through Honeywell channels ensures global technical support, consistent quality, and predictable lead times, which can be critical for plant maintenance strategies.

• Documentation and Traceability: Using the OEM part simplifies documentation, bill of materials (BOM) accuracy, and provides full traceability, which is important for audits in regulated industries.

Selection Suggestions and Precautions

1. Calculate Total Load Current: Sum the nominal 24V DC current draw of all devices to be powered. Ensure the total is less than 80-90% of the FC-PSU-UNI2450U‘s 10A rating for a safety margin and to account for inrush currents.

2. Consider Redundancy: For critical applications, design a redundant power system using two supplies in a parallel/hot-standby configuration with appropriate diode modules, ensuring continuity if one unit fails.

3. Input Power and Protection: Provide appropriate AC line protection (e.g., a circuit breaker or fuse) ahead of the power supply as per local electrical codes and the unit’s specifications.

4. Thermal Management: Although fanless, ensure adequate ventilation around the unit within the panel. Do not exceed the specified ambient operating temperature.

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