HONEYWELL FC-PSU-UNI2450U V | 1200 W System Power Supply

Description

Core Product Summary

The HONEYWELL FC-PSU-UNI2450U is a system power supply designed for Honeywell Safety Manager control systems. It accepts a wide AC input range and provides high-current DC power for compatible system hardware. The documented V2.1 configuration supports selectable 25 V DC and 28 V DC output, with rated currents of 48 A and 43 A, respectively.

For maintenance teams, this unit is relevant to power-supply replacement, system restoration, and spare-parts planning. Before ordering, confirm the exact hardware revision and verify compatibility with the installed Safety Manager configuration.

Key Technical Specifications

Note: These specifications are documented for the FC-PSU-UNI2450U family. Output-current limits depend on operating temperature, and the precise version supplied should be confirmed before procurement.

Engineering Selection Highlights

• High-current DC output: Provides up to 48 A at 25 V DC or 43 A at 28 V DC under the documented temperature conditions.
• Wide AC input range: Accepts nominal 110–240 V AC input, with specified operating limits of 93–253 V AC.
• Selectable output voltage: Supports 25 V DC or 28 V DC operation. Confirm the required setting against the installed system’s power requirements.
• Low output ripple: Specified ripple and noise below 40 mV peak-to-peak helps support stable power delivery to compatible control hardware.
• Short-term ride-through: The documented 100 ms hold-up time at full load provides limited continuity during brief input interruptions; it does not replace a dedicated backup supply.
• Industrial system integration: Intended for the Honeywell Safety Manager platform rather than generic, unrestricted DC power applications.
• Revision-aware replacement: Version, approvals, wiring, and mechanical configuration should be checked against the existing installation before substitution.

FC-PSU-UNI2450U V

FC-PSU-UNI2450U V

System Compatibility & Integration Requirements

The FC-PSU-UNI2450U is documented as a system power supply for Honeywell Safety Manager equipment. Compatibility should be established using the system hardware reference and the power requirements of the installed assembly.

Before installation, verify:

1. System family: Confirm that the target equipment is designed for this specific Honeywell power supply.
2. Hardware revision: Check the installed unit’s version and nameplate. Do not assume every revision has identical documentation or approvals.
3. Output requirement: Verify whether the application requires 25 V DC or 28 V DC and confirm the corresponding current capacity.
4. Load budget: Calculate the total connected load and account for temperature-related output derating.
5. Input supply: Confirm AC voltage, frequency, protective grounding, and upstream circuit protection.
6. Connections and mounting: Compare cable assemblies, terminal arrangements, and mechanical fit with the installed unit.
7. System approvals: Confirm that the exact version and complete installation meet applicable safety and regulatory requirements.

Do not substitute another Honeywell power supply solely because it has a similar model number or nominal output voltage.

Dimensions, Mounting & Connection Notes

The documented overall dimensions are 420.5 × 140 × 90 mm (W × H × D), with a weight of approximately 5.7 kg including the cable set.

Installation considerations:

• Allow sufficient cabinet space for the unit, wiring, ventilation, and maintenance access.
• Confirm the mounting arrangement and cable routing against the applicable Safety Manager documentation.
• Verify input and output connections before energizing the unit.
• Check the required output-voltage setting and the connected load’s current demand.
• Observe the specified operating-temperature range and output derating requirements.
• Isolate the power source and follow approved electrical safety procedures before replacing or servicing the unit.

The exact connector and terminal assignments should be confirmed using the documentation for the installed version; they should not be inferred from dimensions or model naming alone.

Detailed Product Overview

AC-to-DC Power Conversion

The FC-PSU-UNI2450U accepts AC input and delivers high-current DC output for compatible Honeywell Safety Manager equipment. Its documented input range is 110–240 V AC, with operating limits of 93–253 V AC and an input frequency range of 47–63 Hz.

This range provides flexibility for installations using different nominal AC supply levels, provided the actual supply remains within the specified limits.

Output Capacity and Regulation

The documented supply supports two output configurations: 25 V DC at up to 48 A and 28 V DC at up to 43 A within the stated temperature conditions. Both configurations provide approximately 1,200 W of output capacity.

The specified ripple and noise level is below 40 mV peak-to-peak. A 100 ms hold-up time at full load provides a short interval of output continuity following an input disturbance, within the limits of the documented operating conditions.

Thermal Management

The specified operating-temperature range is −5°C to +70°C. However, maximum output current is not available across the entire temperature range without qualification. The documented current ratings apply from −5°C through +50°C, and output capability must be assessed using the manufacturer’s derating information at higher ambient temperatures.

Cabinet ventilation, adjacent heat sources, and the installed load should therefore be considered during equipment selection and replacement.

Mechanical and Electrical Integration

At 420.5 mm wide, 140 mm high, and 90 mm deep, the unit requires adequate space in the control cabinet. Its weight, including the cable set, is approximately 5.7 kg.

Before commissioning a replacement, technicians should verify the mounting arrangement, cable configuration, AC input connections, DC output setting, and connected load. These checks are especially important when replacing a unit in an established safety-control installation.

Version and Procurement Verification

The product family has documented V2.1 and V3.0 versions. Because the requested identifier ends in “V” without a complete revision number, the precise version intended by the order should be confirmed.

When requesting a quotation, provide the complete model designation, version marking, nameplate information, and photographs of the connectors. These details help establish whether the offered unit matches the required hardware and system configuration.

Applications & System Role

The FC-PSU-UNI2450U serves as a power-conversion component within compatible Honeywell Safety Manager installations.

Typical maintenance and engineering contexts include:

• Power supply for compatible Safety Manager control hardware.
• Replacement of a failed system power supply.
• Planned maintenance of industrial safety-control cabinets.
• Spare-parts inventory for critical control-system infrastructure.
• Restoration of equipment following power-supply faults.
• Maintenance planning for installations requiring high-current DC power.

Its suitability for a particular safety-related application depends on the approved system configuration, power budget, and applicable installation requirements.

Frequently Asked Questions

Q1: What is the HONEYWELL FC-PSU-UNI2450U?

It is a system power supply for compatible Honeywell Safety Manager installations, converting AC input into high-current DC output.

Q2: What is its input voltage range?

The documented nominal input range is 110–240 V AC, with operating limits of 93–253 V AC.

Q3: What DC output does it provide?

The documented configurations are 25 V DC at up to 48 A and 28 V DC at up to 43 A, subject to the specified temperature conditions.

Q4: What is the maximum output power?

The output ratings correspond to approximately 1,200 W. Actual permissible output depends on the selected voltage, ambient temperature, and manufacturer’s derating requirements.

Q5: What are its dimensions and weight?

The unit measures 420.5 × 140 × 90 mm (W × H × D) and weighs approximately 5.7 kg including the cable set.

Q6: Is the FC-PSU-UNI2450U suitable for every Honeywell control system?

No. Its documented application is the Safety Manager system family. Confirm compatibility with the specific control hardware and installation documentation.

Q7: Does the model have different versions?

Yes. V2.1 and V3.0 are documented versions. Confirm the full version marking before ordering a replacement.

Q8: What should be checked before replacing the power supply?

Verify the model and revision, input supply, required DC output setting, load current, mounting, cable connections, temperature conditions, and applicable system approvals.