Description
Metso D201832L
Technical Specifications Wide-range AC/DC universal input; multiple isolated stabilised DC output rails for rack logic circuits; rated output power matches AP31 RT node rack power budget; operating ambient temperature -20 ℃ to +70 ℃; PCB with full conformal coating; rack plug-in form factor compatible with Metso MAX AP31 rack backplane; built-in independent per-rail overvoltage, overcurrent and overtemperature shutdown protection; front panel multi-status LED indicators.
Functional Features Multi-isolated power rail design reduces cross-talk between analogue, digital and communication circuits; automatic shutdown and fault LED alarm during overvoltage, overcurrent or over-temperature events; input surge suppression for industrial grid transients; continuous power regulation under rated load; fast discharge circuit for internal capacitors after power removal; PCB coating prevents electrochemical corrosion in harsh environments.
Application Scenarios Field-side Metso MAX AP31 remote I/O racks in pulp and paper mills, mineral processing plant local control cabinets, wastewater treatment outdoor auxiliary control cabinets, corrosive and high-humidity industrial cabinet spare replacement.
Material Composition Flame-retardant plastic module housing; high-density FR4 power PCB with acrylic conformal coating; power switching semiconductors; aluminium alloy heat sink for power device cooling; gold-plated rack backplane edge connector; screw terminal blocks for mains input wiring; metal electromagnetic shielding cans.
Structural Characteristics Horizontal rack plug-in module; front panel integrates status LED array and mains input terminal block; rear gold finger connector mates with AP31 rack backplane; internal compartment separation between high-voltage input section and low-voltage output section; coating covers all exposed copper and component leads on PCB.
Working Principle After mains power feeds into the module’s input terminals, the switching power circuit carries out rectification, filtering and voltage transformation. Multiple isolated DC voltage outputs are generated and delivered to the rack backplane. Internal monitoring circuits track output voltage, load current and component temperature. Protection circuits activate and cut off output once parameters exceed rated limits. The conformal coating isolates circuit traces from humid and corrosive air.
Installation Requirements Install module only when rack power is fully disconnected; secure module latch after seating; connect protective earth terminal to cabinet ground bar; reserve ventilation space around heat sink; confirm total rack load power stays below module rated output.
