Foxboro FPS400-24 | 400W DIN Rail Power Supply
Foxboro FPS400-24 | 400W DIN Rail Power Supply - Image 2
Foxboro FPS400-24 | 400W DIN Rail Power Supply - Image 3
Foxboro FPS400-24 | 400W DIN Rail Power Supply - Image 4

Foxboro FPS400-24 | 400W DIN Rail Power Supply

  • Model: FPS400-24 (P/N P0922YU)
  • Brand: Foxboro (Invensys/Schneider Electric)
  • Series: I/A Series
  • Core Function: DIN rail mounted power supply for industrial control systems
  • Type: Power Supply Module
  • Key Specs: 400W (16.7A), 24VDC Output, 85-264VAC Input, Redundant Capable
Category: SKU: FPS400-24 FOXBORO

Description

Key Technical Specifications

Parameter Specification
Part Number P0922YU (P0922YC for 24VDC input)
Output Power 400 Watts
Output Voltage 24 VDC
Output Current 16.7 Amps
Input Voltage 85 ~ 264 VAC (P0922YU) or 24 VDC (P0922YC)
Input Frequency 47 ~ 63 Hz
Efficiency ≥ 85%
Operating Temp -20°C to +70°C
Mounting DIN Rail (35mm)
Protection Overvoltage, Overcurrent, Short Circuit, Overtemp
Certifications UL, CENELEC, Class I Div 2 (Hazardous Locations)

 

Product Introduction

The Foxboro FPS400-24 (Part Number P0922YU) is a high-efficiency DIN rail power supply designed for the Foxboro I/A Series control systems. It provides a stable 24VDC output to power field bus modules (FBMs), controllers, and external field devices. This unit is specifically engineered to operate in harsh industrial environments, offering reliable power conversion with built-in protection against surges and electrical noise.This module supports a wide input voltage range (85-264VAC), making it versatile for global installation. It features active power factor correction and high efficiency (≥85%) to reduce heat generation within the control cabinet. The FPS400-24 is designed for redundancy; multiple units can be paralleled to create a fault-tolerant power system, ensuring continuous operation even if one supply fails. It is the designated power source for 200 Series FBMs and other I/A Series components.

Installation & Configuration Guide

Preparation (10 min)

  1. Safety: Ensure the main AC power supply is OFF and locked out.
  2. Verify the input voltage rating on the label matches your facility power (120/240VAC).
  3. Clear space on the 35mm DIN rail for the module (approx. 125mm width).

Removal (5–10 min)

  1. Disconnect input and output wiring.
  2. Pull down the DIN rail locking latch at the bottom of the unit.
  3. Slide the unit upward to release it from the rail.

Installation (10 min)

  1. Hook the top of the FPS400-24 onto the DIN rail.
  2. Push the bottom of the unit firmly until the locking latch engages.
  3. Connect the AC input lines to the L/N terminals and the protective earth to the ground terminal.
  4. Connect the 24VDC output to the system bus or field devices.
  5. Redundancy: If using parallel redundancy, ensure diode modules are installed as per system manual.

Power-On & Test (10 min)

  1. Restore AC power.
  2. Verify the “DC OK” LED illuminates green.
  3. Measure the output voltage with a multimeter; adjust the trim pot if necessary to reach exactly 24.0VDC.
  4. Check for alarm relay activation (if wired).

 

Troubleshooting Quick Reference

Symptom Probable Cause Corrective Action
No Output / LED Off No input power or blown fuse. Check AC input voltage; verify input wiring connections.
Output Voltage Low Overload or current limit active. Check load current; ensure total draw is under 16.7A.
Red LED / Alarm Overvoltage or Overtemp. Check ventilation; verify input voltage is within 85-264VAC range.
System Noise Poor grounding. Ensure the PE terminal is connected to a clean earth ground.

 

Dimensions, Mounting & Wiring Notes

  • Dimensions: 125mm (W) x 100mm (H) x 200mm (D) (Approximate).
  • Mounting: Standard 35mm DIN Rail.
  • Wiring:
    • Input: 85-264VAC (L, N) + Ground.
    • Output: 24VDC (+, -).
    • Signal: Alarm relay contacts (C, NO, NC).
  • Note: The unit generates heat; ensure at least 20mm clearance between units for airflow.
FPS400-24 FOXBORO

FPS400-24 FOXBORO

FAQ

What is the difference between P0922YU and P0922YC?
The P0922YU accepts AC input (85-264VAC), while the P0922YC is designed for 24VDC input. Ensure you order the correct version for your power source.Can I use this power supply for redundant systems?
Yes, the FPS400-24 supports redundant configuration. You can parallel the outputs (usually with external diode modules) to ensure power availability if one unit fails.What kind of protection does this module have?
It includes comprehensive protection: Overvoltage shut-off, dual-level current limiting, short circuit protection, and over-temperature shutdown.Is this compatible with older Foxboro systems?
Yes, it is part of the I/A Series and is specifically tested for use with 200 Series Field Bus Modules (FBMs).How do I know if the unit is overheating?
The module has an internal thermal sensor. If the temperature exceeds the limit (typically +75°C), it will shut down to protect itself. Ensure the cabinet cooling fans are working.

Related products