Technical Specifications Module Type: Industrial DC Power Supply Module Input Voltage: 100‑240 VAC, 50/60 Hz Rated Output: 24 VDC, 400 W total power Mounting Mode: 35 mm DIN‑rail mounting Operating Temperature: 0 °C to +60 °C Storage Temperature: −40 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Certifications: CE, UL, certified for Class I Division 2 hazardous‑location application
Functional Features Wide‑range AC input adapts different‑region industrial‑site power‑grid conditions. Multiple‑channel 24 VDC output terminals for distributing power to DCS subsystem hardware. Built‑in over‑voltage, over‑current and short‑circuit protection functions. Front‑panel LED indicators display AC‑input status and DC‑output working status. Supports redundant parallel deployment for high‑reliability DCS power‑distribution architecture.
Application Scenarios Installed inside Foxboro I/A Series DCS control cabinets in petrochemical, chemical and power‑plant industries. Provides stable 24 VDC operating power for FBM I/O modules, communication modules and controller baseplates.
Structural Characteristics Heavy‑duty metal power‑supply housing with heat‑dissipation fin structure. AC‑input and multi‑group DC‑output screw‑type terminals on module front side. DIN‑rail locking buckle for quick cabinet installation. Front‑panel LED status indicators for power‑supply working condition display。
Working Principle FPS400‑24 P0922YU receives AC mains input power. Internal switching‑power circuit completes AC‑DC conversion, outputs regulated stable 24 VDC power via multi‑group output terminals to DCS system modules. Built‑in protection circuit monitors output voltage and current in real‑time. When overload or short‑circuit fault occurs, protection mechanism activates to avoid hardware damage. Under redundant‑parallel configuration, multiple power‑supply modules share load current.
Installation Requirements Mount FPS400‑24 P0922YU on standard 35 mm DIN‑rail inside control cabinet. Complete AC‑mains input wiring to input‑side screw terminals according to power‑rating specification. Distribute 24 VDC output power to each DCS‑subsystem baseplate via output terminals. Carry‑out power‑loop insulation test before switching on AC‑input power.
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