Foxboro P0922YU

Foxboro P0922YU

Product Introduction
The P0922YU, also known as the FPS400-24, is a 400-Watt DIN rail-mounted power supply module. It is a certified component of the Foxboro I/A Series, uniquely qualified to provide reliable 24 VDC power to 200 Series Fieldbus Modules (FBMs) and baseplates in both standard and hazardous environments.

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Description

Foxboro P0922YU

Technical Specifications

  • Power Output: 400 Watts at 24 VDC (16.7 A).
  • Input Voltage: Wide-range 85 to 265 VAC or 108 to 145 VDC.
  • Input Frequency: 47 to 63 Hz.
  • Efficiency: Up to 95%.

Functional Features

  • Hazardous Area Certification: Certified for use in Class I, Division 2 and Zone 2 hazardous locations, making it safe for use in explosive atmospheres.
  • Active Power Factor Correction (PFC): Achieves a power factor close to 1, improving energy efficiency and reducing harmonic distortion.
  • Low Ripple & Noise: Output ripple and noise are less than 200 mVp-p, ensuring clean power for sensitive electronics.
  • Robust Protection: Features dual-stage current limiting, over-voltage shutdown, and an internal 10A slow-blow fuse.

Application Scenarios
Widely deployed in chemical processing, manufacturing, power generation, and building automation systems where reliable power for DCS fieldbus modules is critical.

Performance Parameters

  • Operating Temperature: -40°C to +70°C.
  • Output Regulation: Voltage line and load regulation of ±2.0%.
  • Isolation: 1500V AC isolation between input and chassis, 500V AC between output and chassis.

Material Composition
Enclosed in a sealed, gasketed metal housing with a pad for a status relay. Internal components are potted or conformally coated for enhanced durability in harsh environments.

Structural Characteristics
Designed for horizontal or vertical DIN rail mounting. Features a compact footprint to save panel space and includes a C-type relay contact for remote alarm status indication.

Working Principle
Converts AC or DC input power to a regulated 24V DC output using an isolated, high-frequency switching converter. The active PFC circuit ensures efficient power draw from the mains. Protection circuits continuously monitor output current and voltage, shutting down the supply if unsafe conditions are detected.

Installation Requirements
Mount on a standard 35mm DIN rail. For vertical mounting, a DIN rail clamp (P/N X0175TQ) is required. Ensure the alarm relay contacts are wired if remote monitoring is needed.

Usage Precautions

  • Do not use this power supply to power both the FBM baseplate and external field devices simultaneously; use separate supplies to maintain system integrity.
  • Verify the correct input voltage selector setting (if applicable) before energizing.
  • Allow for adequate ventilation around the module to manage heat dissipation.

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