Foxboro P0912RD Product Specification Document
Foxboro P0912RD is compact hot-swappable rack power supply of I/A P0912 series, low-power standard cabinet dedicated model, applied for medium-capacity DCS & SIS control cabinet with partial-slot FBM I/O and dual redundant controller layout. Equipped integrated aluminum alloy enclosed heat sink, six-layer PCB full conformal coating and G3 anti-corrosion electrophoretic treatment; seven-stage EMI filtering plus secondary surge absorption circuit, adapt to conventional petrochemical, municipal thermal power, fine chemical and water treatment medium corrosive operating environment. Comply with I/A backplane hot-plug specification, support live replacement without cabinet AC power outage; front-mounted independent LED status lamps for input power, normal output, overload, over-temperature and fault alarm, upload real-time running parameters and fault codes to DCS workstation via backplane bus channel。
Description
Foxboro P0912RD Product Specification Document
1. Product Introduction
Foxboro P0912RD is compact hot-swappable rack power supply of I/A P0912 series, low-power standard cabinet dedicated model, applied for medium-capacity DCS & SIS control cabinet with partial-slot FBM I/O and dual redundant controller layout. Equipped integrated aluminum alloy enclosed heat sink, six-layer PCB full conformal coating and G3 anti-corrosion electrophoretic treatment; seven-stage EMI filtering plus secondary surge absorption circuit, adapt to conventional petrochemical, municipal thermal power, fine chemical and water treatment medium corrosive operating environment. Comply with I/A backplane hot-plug specification, support live replacement without cabinet AC power outage; front-mounted independent LED status lamps for input power, normal output, overload, over-temperature and fault alarm, upload real-time running parameters and fault codes to DCS workstation via backplane bus channel。
2. Basic Information
Original US Foxboro part No.: P0912RD, passed UL508 industrial safety & CE EMC certification. Wide-range AC input:85～264VAC,47～63Hz; stabilized 24VDC rated output power 420W; overall dimension 172mm×166mm×52mm, net weight approx 1.23kg. Supply options: factory original sealed new goods & full-load aging tested refurbished modules with 12-month global warranty; fully pin-to-pin interchangeable with P0912QA~QV full series main power, P0912LA/LB auxiliary backup power, P0912MP redundant cable and all FBM series analog/digital I/O modules, direct plug-in standard I/A rack backplane without extra adapters。
3. Function and Positioning
Positioned as standard medium-power main power source for medium-scale half-populated I/A DCS and conventional SIS safety cabinet:
Supply precision regulated 24VDC power for half-slot configured FBM modules, dual redundant control processors and cabinet backplane bus of medium-size DCS rack;
Built-in complete overvoltage, overcurrent, short-circuit and over-temperature auto-lock protection, prevent rear-end I/O cascade damage caused by field line short fault;
Support dual redundant parallel hot standby running with multiple P0912RD modules, non-disturbance automatic load switchover upon single unit failure to guarantee uninterrupted power of core interlock loops;
Transmit real-time output voltage, load current, internal temperature and fault alarm codes to upper DCS host via backplane bus for remote monitoring and early fault warning;
Full input-output galvanic isolation design restrain grid harmonic & surge interference, lift cabinet analog sampling precision and whole system anti-interference performance。
4. Core Performance Parameters
AC input:85～264VAC,47～63Hz; DC rated output:24VDC±0.3%, max continuous output current 17.5A; output ripple ≤52mVpp. Operating ambient temp:0℃～+58℃, storage temp:-40℃～+85℃; relative humidity 5%～95%RH non-condensing, cabinet installation IP20 protection grade. Protection threshold: overvoltage lock 26.5VDC, overload protection activate at 101% rated load, overtemperature auto-shutdown at 67℃; EMC conform IEC61000-6-2 industrial standard, pass 450h neutral salt spray test; factory mandatory ≥72h full-load burn-in test before delivery。
5. General Adaptable Accessories
Standard installation parts: rack fixed screws, AC insulated wire terminals, cabinet anti-vibration gaskets, front indicator dust baffle; maintenance spare: radiator filter cotton, replacement LED lamp set, input terminal insulating cap; compatible hardware: full P0912Q series power supply, P0912LA/LB auxiliary power, P0912MP redundant test cable, full FBM200 series I/O modules, original I/A standard backplane; diagnosis tool: Foxboro I/A configuration software for online parameter reading & troubleshooting; optional accessory: lengthen AC terminal block for old cabinet reconstruction wiring upgrade。
6. Applicable Equipment Fields
Main applicable industries: medium-scale refining & chemical plant DCS cabinet, conventional thermal power auxiliary desulfurization/denitrification control rack, fine chemical intermittent production line control cabinet, municipal centralized sewage treatment DCS cabinet, onshore medium-sized oilfield SIS safety cabinet. Application scenarios: cabinet equipped with 12~20 slots partial populated FBM I/O; regular SIS safety cabinet adopts dual redundant P0912RD configuration; medium-size power plant auxiliary data collection cabinet uses dual parallel P0912RD for cabinet power distribution。
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