Schneider Electric / Invensys / Foxboro P0922YU FPS400-24 I/A Series DIN Rail Mounted Power Supply

The Schneider Electric/Invensys/Foxboro P0922YU is a 400 W DIN rail mounted power supply engineered to deliver stable 24 V DC output for industrial automation and DCS applications. Qualified for Foxboro DCS 200 Series Fieldbus Modules, this unit accepts both AC and DC inputs across a wide voltage range, supporting global deployment scenarios. Agency certified for Division 2 and Zone 2 hazardous locations with G3 rating for harsh environments.

Technical Specifications

• AC input: 85–265 VAC, 47–63 Hz


• DC input: 108–145 VDC (nominal 125 VDC)


• Maximum input current: 5.6 A at 85 VAC RMS; 2.5 A at 230 VAC RMS


• Inrush current: 20 A peak at 110 VAC; 40 A peak at 220 VAC (cold start) Output


• Voltage: 24.0 V DC ±0.2 V (factory set)


• Maximum current: 16.7 A


• Line regulation: 2.0% of Vout


• Load regulation: 2.0% of Vout


• Ripple and noise: 100 mV peak-to-peak; 10 mV RMS maximum


• Temperature coefficient: 0.025% per °C


• Soft-start time: 3 seconds typical


• Load transient recovery: within 50 ms Efficiency


• 77% minimum at 85 VAC; 85% typical at 120 VAC; 92% typical at 230 VAC; up to 95%

Key Features

• Over-current protection with 110% current limiting at rated 25 °C load


• Overvoltage shutdown set at 28.0 V DC


• 10 A slow-blow internal fuse (non-user accessible)


• Input-to-output isolation: 3000 V AC


• Output-to-chassis isolation: 500 V AC


• Convection cooling (fan-free design)


• Gasketed, sealed housing for environmental durability

Typical Applications

• Fieldbus module power in DCS 200 Series deployments


• Industrial automation systems requiring hazardous location certification


• Control systems in Division 2 and Zone 2 environments

Compatibility & Integration Qualified for integration with Foxboro DCS 200 Series Fieldbus Modules. UL®, UL-C, and CENELEC certified. Compliant with Class 1, Division 2 and Zone 2 hazardous location requirements.