Foxboro P0917MF I/A Series System Power Supply Module

Technical Specifications Input Power Range: 18‑30 VDC industrial DC power input Output Rated Voltage: 24 VDC for internal rack backplane bus Maximum Output Power: 120 W Output Over‑voltage Protection Threshold: 27.5 VDC Over‑current Protection: Hardware current limiting and shutdown protection Short‑circuit Protection: Instant hardware shutdown upon output short‑circuit Operating Power Supply: External industrial DC power input Operating Temperature: ‑40 ℃ to +70 ℃ Storage Temperature: ‑50 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard single‑slot plug‑in power module for Foxboro I/A Series rack Certifications: CE, UL, ATEX, IEC 61508 functional safety compliance

Functional Features High‑efficiency DC‑DC power conversion for rack internal backplane bus power supplying. Built‑in multi‑layer protection including over‑voltage, over‑current and output short‑circuit protection. Supports parallel redundant working mode cooperating with second P0917MF power module.

Application Scenarios Process industry distributed control system(DCS). Petrochemical plant core control rack power supply unit. Oil & gas critical production unit DCS cabinet power supply. Chemical plant high‑reliability control rack power supply system. Power plant main control cabinet internal power supply module.

Structural Characteristics Standard single‑slot plug‑in power module structure matching Foxboro I/A Series rack. Front panel equipped with status LED indicators for input power, output normal and fault alarm. Input power terminals arranged on module front side for convenient power cable access and maintenance.

Working Principle External industrial DC power is imported through front‑side input terminals. Pre‑protection circuit completes input surge suppression and reverse‑connection protection. High‑efficiency DC‑DC conversion circuit converts input voltage into stable 24VDC output for rack backplane bus.

Installation Requirements Insert power module into designated power slot of Foxboro I/A Series standard rack. Strictly follow power input polarity requirement, avoid reverse‑connection damage. Input power cable shall adopt sufficient wire gauge according to full‑load current demand.