Honeywell PSU-UNI2450 CC V2.0 Power Supply 25/28VDC

The Honeywell PSU-UNI2450 CC V2.0, also cataloged as the PSU-UNI2450 CC V2.0 Power Supply, operates as a dedicated hardware component for continuous regulated DC power distribution within Honeywell process control and safety system racks. The unit conditions incoming mains voltage into a stable direct-current output, supplying system backplanes, field I/O channels, and controller logic modules.

Hardware Specifications

Process Control & DCS Power Architecture Characteristics

The PSU-UNI2450 CC V2.0 power supply features conformal coating (CC) to protect internal power electronics against conductive dust and corrosive atmospheric contaminants common in harsh industrial environments. Built with integrated channel-to-channel isolation and output overvoltage protection, the unit mitigates power-line transients before they reach sensitive controller backplanes. The module supports parallel power redundancy configurations, ensuring uninterrupted 25/28 VDC bus operation through seamless load-sharing during supply failure events.

Frequently Asked Questions

Q: What does the "CC" suffix signify on the PSU-UNI2450 CC V2.0 module?

A: The "CC" designation indicates conformal coating applied to internal circuit assemblies, providing dielectric protection and moisture resistance in classified industrial locations.

Q: Can the PSU-UNI2450 CC V2.0 be deployed in redundant power supply configurations?

A: Yes, the unit includes integrated output decoupling diodes to allow direct parallel connection with secondary power supplies on a common system power bus.

Field Installation Guidelines

• Mechanical Mounting: Slide the power supply module into the designated rack slot along the chassis guide rails until the rear high-current connector is fully seated, then tighten front retaining screws.
• AC Input & DC Wiring: Connect incoming AC mains power and DC distribution cables according to terminal pinouts. Verify polarity and voltage selector settings before energizing the unit.
• Grounding: Connect the primary protective earth (PE) ground wire to the chassis earth terminal using a low-impedance connection to ensure proper surge redirection.
• Thermal Management: Maintain a minimum clear ventilation area of 50 mm above and below the module rack assembly to allow free convection cooling.