Foxboro P0912QJ Product Specification Document
Foxboro P0912QJ is the top-tier high-power hot-swappable rack power supply of P0912 I/A series, upgraded successor model after P0912QH, engineered for ultra-large full-populated DCS & SIS integrated cabinets equipped with full-slot dense FBM I/O and quad-redundant controller layout. It adopts integrated thick cast aluminum full-enclosure heat dissipation framework, six-layer PCB full conformal coating and enhanced G3++ high anti-salt-fog electrophoretic surface process; configured eight-stage EMI filtering plus multi-grade lightning surge suppression circuit, further optimized for offshore oil platforms, coastal coastal chemical bases, large coal-to-chemical plants and coastal power plants under high temperature, high humidity, severe salt mist and corrosive harsh ambient environment. Complies with standard I/A backplane hot-plug specification to support live online module replacement without cutting off cabinet main AC input; front panel equips standalone LED indicators for input status, rated output, overload, over-temperature and hardware fault, synchronously uploading real-time operating parameters and fault diagnostic codes to DCS engineering workstation via backplane bus communication.
Description
Foxboro P0912QJ Product Specification Document
1. Product Introduction
Foxboro P0912QJ is the top-tier high-power hot-swappable rack power supply of P0912 I/A series, upgraded successor model after P0912QH, engineered for ultra-large full-populated DCS & SIS integrated cabinets equipped with full-slot dense FBM I/O and quad-redundant controller layout. It adopts integrated thick cast aluminum full-enclosure heat dissipation framework, six-layer PCB full conformal coating and enhanced G3++ high anti-salt-fog electrophoretic surface process; configured eight-stage EMI filtering plus multi-grade lightning surge suppression circuit, further optimized for offshore oil platforms, coastal coastal chemical bases, large coal-to-chemical plants and coastal power plants under high temperature, high humidity, severe salt mist and corrosive harsh ambient environment. Complies with standard I/A backplane hot-plug specification to support live online module replacement without cutting off cabinet main AC input; front panel equips standalone LED indicators for input status, rated output, overload, over-temperature and hardware fault, synchronously uploading real-time operating parameters and fault diagnostic codes to DCS engineering workstation via backplane bus communication.
2. Basic Information
Original US Foxboro part number: P0912QJ, certified by UL508 industrial safety specification and CE industrial EMC certification. Wide-range AC input:85～264VAC,47～63Hz; stabilized 24VDC rated output with total rated power 720W; overall dimension 172mm×166mm×52mm, single net weight approx 1.48kg. Supply options: original factory sealed new spare parts and full-load burn-in inspected refurbished modules with 12-month global quality warranty; fully pin-to-pin interchangeable with full P0912Q serial power supplies (QA/QB/QC/QD/QE/QF/QG/QH), P0912LA/LB auxiliary backup power, P0912MP redundant debugging cable and full FBM series analog/digital I/O modules, directly plugged onto standard I/A backplane without any extra adapter modification.
3. Function and Positioning
Positioned as flagship high-capacity main power source for oversized full-slot heavy-load I/A DCS and SIS safety interlock integrated cabinet, core functional descriptions:
Provide precision-regulated stable 24VDC power for fully filled full-slot FBM I/O boards, multi-group quad-redundant control processors and cabinet backplane bus of super-large DCS rack;
Integrate complete overvoltage, overcurrent, short-circuit and over-temperature automatic lockout protection logic, effectively prevent cascading burnout of dozens of rear-end I/O modules induced by field wiring short-circuit failure;
Support dual/triple/quad parallel redundant hot standby running with multiple P0912QJ units, realize seamless bumpless load switching upon single module fault to guarantee uninterrupted power supply for critical SIS safety interlock loops;
Transmit real-time output voltage, running load current, internal core temperature and fault alarm codes to upper DCS host via backplane bus for remote centralized monitoring and pre-fault early warning;
Full input-output galvanic isolation design suppresses power grid harmonic and surge interference, improves whole cabinet analog signal sampling precision and overall system anti-interference performance.
4. Core Performance Parameters
AC input specification:85～264VAC,47～63Hz; DC rated output:24VDC±0.3%, max continuous output current 30.0A; output ripple noise ≤52mVpp. Operating ambient temperature:0℃～+60℃, storage temperature:-40℃～+85℃; applicable relative humidity 5%～95%RH non-condensing, cabinet installation protection grade IP20. Protection trigger threshold: overvoltage lock at 26.6VDC, overload protection activated at 101% rated load, over-temperature automatic shutdown at 67℃; EMC complies with IEC61000-6-2 industrial anti-interference standard, passes 450h neutral salt spray aging test; factory mandatory full-load continuous burn-in test ≥72h before factory delivery.
5. General Adaptable Accessories
Standard installation fittings: rack locking screws, AC input insulated wire lugs, cabinet anti-vibration buffer gaskets, front indicator dustproof baffle; maintenance spare parts: radiator filter cotton, replacement LED indicator group, input terminal insulating protective cap; compatible matching hardware: full-range P0912QA~QH main power supply, P0912LA/LB auxiliary backup power, P0912MP redundant test cable, full FBM200 series I/O modules, original I/A standard rack backplane; diagnostic tool: Foxboro I/A system configuration software for online power parameter reading and fault troubleshooting; optional accessory: customized lengthened AC wiring terminal block for old DCS cabinet renovation wiring upgrade.
6. Applicable Equipment Fields
Core applicable industries: super-large integrated petrochemical refining base central DCS control cabinet, ultra-supercritical thermal power unit boiler + flue gas desulfurization & denitrification complete control system, large fine chemical continuous polymerization production line DCS cabinet, super-large industrial wastewater centralized treatment control rack, offshore oil & gas production platform core SIS safety interlock cabinet. Main deployment scenarios: full rack equipped with over 26 slots fully configured dense FBM I/O modules; high-safety SIS cabinet adopts dual/triple redundant P0912QJ configuration; oversized thermal power centralized data acquisition cabinet uses multi-group parallel-connected P0912QJ for integrated whole-cabinet power distribution.
Get a Quote