Foxboro FPS400-24 P0922YU - I/A Series Redundant Safety Power Supply, 24V DC Output, 400 Watt Capacity

Foxboro FPS400-24 P0922YU – I/A Series Redundant Safety Power Supply, 24V DC Output, 400 Watt Capacity

In stock

Product Introduction:
The Foxboro FPS400-24 P0922YU is a high-capacity redundant power supply module designed for the Foxboro I/A Series (Influence Area) Distributed Control System. This module provides clean, regulated 24V DC power to the safety-critical I/O modules and controllers in a redundant safety system. The “FPS” stands for Fault-tolerant Power Supply, “400” indicates its 400 Watt power rating, “24” denotes the 24V DC output, and “P0922YU” is the specific part number configuration. This power supply is engineered for safety-critical applications where any loss of power would compromise the safety function. It features true N+1 redundancy, meaning if one power supply fails, the other takes over the entire load instantly with zero interruption. The module is commonly used in SIL 2 and SIL 3 safety systems across oil and gas, chemical, and power generation industries.

Technical Specifications:
Board Type: Redundant Safety Power Supply Module
System: Foxboro I/A Series (Series 400)
Input Voltage: 120V AC or 240V AC (auto-ranging, 50/60Hz)
Output Voltage: 24V DC regulated
Output Current: 16.7 Amps continuous (400 Watts total)
Redundancy: N+1 redundant dual power supply
Efficiency: Greater than 85%
Ripple and Noise: Less than 50mV peak-to-peak
Protection: Over-voltage, under-voltage, over-current, short-circuit, over-temperature, reverse polarity
Cooling: Dual internal fans with automatic failover
Form Factor: 6U I/A Series Eurocard
Operating Temperature: 0 to 60 degrees Celsius
Certifications: UL, CSA, CE, ATEX (hazardous area versions available)
MTBF: Greater than 200,000 hours

Functional Features:
True N+1 Redundancy: Both power supplies operate simultaneously, sharing the load equally. If one fails, the other carries 100% of the load with zero interruption.
Hot Swappable: Can be removed and replaced while the system is running, with the remaining supply carrying the full load.
Ultra-Clean Output: Multi-stage filtering delivers ripple-free 24V DC for sensitive safety electronics.
Dual Fan Redundancy: Two fans with automatic failover; if one fails, the other maintains cooling.
Current Sharing: Both supplies share the load equally, extending the life of both units.
Voltage Supervision: Continuously monitors output voltage and alarms if it drifts outside the 24V +/- 1% range.
Sequenced Startup: Controls the order of voltage rise during startup to prevent inrush current damage.
LED Indicators: Power good, fault, and redundancy status LEDs on the front panel.