Description
Foxboro FPS400-24 P0922YU
Technical Specifications
- Power Output: 400 W continuous power at 24 VDC.
- Output Current: 16.7 A maximum.
- Input Voltage Range: Wide universal input of 85 to 265 VAC or 108 to 145 VDC.
- Input Frequency: 47 to 63 Hz.
- Efficiency: Up to 95% for AC inputs, minimizing energy loss and heat generation.
Functional Features
- Hazardous Location Certified: Agency certified for safe use in Division 2 and Zone 2 hazardous locations, ensuring operational safety in explosive atmospheres.
- High Efficiency & Low Heat: Advanced power conversion technology achieves up to 95% efficiency, resulting in low heat dissipation and a cooler operating environment.
- Wide Input Compatibility: Supports a broad range of global AC and DC voltage standards, making it suitable for international deployment.
- Robust Protection: Features overcurrent, overvoltage, and short-circuit protection to safeguard downstream control equipment.
Application Scenarios
Extensively used in process control, manufacturing, power generation, and building automation systems. It serves as the primary power source for PLCs, DCS I/O modules, sensors, and actuators in demanding industrial environments.
Performance Parameters
- Output Ripple & Noise: Less than 200 mVp-p, ensuring clean power for sensitive electronics.
- Operating Temperature: -40°C to +70°C (-40°F to +158°F).
- Storage Temperature: -40°C to +85°C.
- Humidity Tolerance: 0 to 95% non-condensing.
Material Composition
Housed in a rugged, industrial-grade metal enclosure that provides excellent electromagnetic interference (EMI) shielding and acts as a heat sink. Internal components utilize high-reliability capacitors and transformers designed for continuous 24/7 industrial operation.
Structural Characteristics
Compact DIN rail mountable design with dimensions of approximately 230 x 112 x 65 mm and a weight of 2 kg. Features standard screw terminals for secure wiring and clear LED indicators for real-time status monitoring and troubleshooting.
Working Principle
The module converts incoming AC or DC mains voltage to a stable 24 VDC output using high-frequency switching technology. It continuously monitors the output load and adjusts the switching duty cycle to maintain precise voltage regulation, while protection circuits actively limit current during fault conditions.
Installation Requirements
Must be securely mounted on a standard 35 mm DIN rail within a properly ventilated control cabinet. Ensure adequate clearance around the module for heat dissipation. Wiring must be performed using appropriately sized conductors and tightened to the specified torque.
Usage Precautions
Never exceed the maximum output current rating. Ensure the input voltage selector (if applicable) matches the local mains supply before powering on. Regularly inspect terminal connections for tightness to prevent hot spots caused by vibration.




