Product Details
The Honeywell FC-PSU-UNI2450U V1.0, also cataloged as the FC-PSU-UNI2450U Power Supply Module, operates as a dedicated hardware component for AC-to-DC power conversion and high-current voltage stabilization within Honeywell Safety Manager and DCS platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-PSU-UNI2450U V1.0 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 4.41 kg |
| Dimensions | Standard system rack power module dimensions |
| Operating Temp | -20 to +70 deg C (Full load to +50 deg C; half load to +70 deg C) |
| Power Consumption | Internal conversion loss dependent on load efficiency |
| Input Voltage Range | 110-240 VAC |
| Input Current | 14-6 A |
| Input Frequency | 50-60 Hz |
| Output Voltage | 25 VDC or 28 VDC |
| Output Current | 48 A at 25 VDC / 43 A at 28 VDC |
| Part Number | 136-012000G51 |
| Approval Certification | E168320 (Industrial Control Equipment) |
Process Control & DCS Power Infrastructure Characteristics
The FC-PSU-UNI2450U V1.0 incorporates channel-to-channel isolation and integrated surge suppression to maintain continuous power stability across DCS controllers and field instrumentation loops. Designed to handle severe main line variations, the unit supports both 25 VDC and 28 VDC field wiring drops using a 4-20 mA HART loop protocol environment without introducing ripple noise into analog input modules. Onboard power regulation circuits isolate internal logic solvers from field-side short circuits and ground loop faults.
Frequently Asked Questions
Q: What is the thermal derating requirement for the FC-PSU-UNI2450U V1.0 when cabinet temperatures exceed 50 deg C?
A: The power supply delivers its full rated output current (48 A at 25 VDC / 43 A at 28 VDC) up to a maximum surrounding air temperature of 50 deg C. Between 50 deg C and 70 deg C, the total continuous output current must be derated linearly down to 50% capacity.
Q: How is the output voltage specified between 25 VDC and 28 VDC executed on this hardware?
A: The module is configured at the factory/hardware selection pin level (Vb1200-1-r interface) to supply either 25 VDC at 48 A or 28 VDC at 43 A to compensate for IR voltage drops across long field cable runs to FTAs.
Field Installation Guidelines
- Physical Mounting: Install the unit vertically into the designated enclosure chassis slot. Secure all retaining hardware to guarantee frame grounding and mechanical stability against industrial vibration.
- AC Input Connections: Wire the primary AC source (110-240 VAC, 50-60 Hz) to the input terminals using correctly sized conductors rated for at least 14 A line current. Ensure phase, neutral, and protective earth conductors are terminated properly.
- Shielding & Grounding: Connect the system protective earth lug directly to the master enclosure copper ground bus using a low-impedance ground strap to reject common-mode electrical noise.
- Thermal Ventilation: Maintain minimum 50 mm clearance above and below the module ventilation openings to permit passive heat dissipation and maintain thermal limits inside the cabinet.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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