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4D33710G01 Standard 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS

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4D33710G01 Standard 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS
June 10, 2026

4D33710G01 Standard 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS

Certified with NRC Class 1E nuclear safety qualification, the 4D33710G01 is a standard isolated analog output terminal daughter card designed for Emerson Westinghouse Common Q safety I&C platform. It converts control commands from main controllers into standard 4–20mA DC and 0–10V DC analog signals to drive field actuators including control valves, frequency converters and positioners. Each channel adopts independent 1500V galvanic isolation and multi-stage LC EMI filters to block power frequency interference, ground loop offset and lightning transient noise. Equipped with standard hard gold-plated backplane connectors and corrosion-resistant nickel screw terminals, this card integrates full basic channel protection, open/short-circuit fault detection and hot-swap capability, providing stable analog output drive for conventional auxiliary nuclear safety control under high-temperature, humid and dusty industrial environments.

Description

Parameter Specifications

  1. Part Number: 4D33710G01

  2. Manufacturer: Emerson Westinghouse

  3. Compatible System: Common Q Class 1E Safety Instrument & Control DCS System

  4. Matching Accessories: Analog output master control boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply

  5. PCB Material: Multi-layer isolated V-0 flame-retardant high-Tg FR-4

  6. Dimension & Weight: 118mm × 64.5mm × 19.7mm; Net weight: 53g

  7. Ambient Conditions: Operating temperature -25℃ ~ +70℃; Storage temperature -50℃ ~ +125℃; Humidity 5%–95% RH, non-condensing

  8. Power Supply: DC 12V / DC 24V dual adaptive input

  9. Output Channels: 16 fully independent galvanic isolated analog output channels

  10. Standard Output Signal: 4–20mA DC current signal, 0–10V DC voltage signal

  11. Isolation Performance: 1500V AC isolation voltage per channel; 2000V AC dielectric withstand for 60s; Insulation resistance ≥1200MΩ @ 500VDC

  12. EMC Index: Power frequency interference attenuation ≥40dB, compliant with IEC 61000-6-2 industrial EMC standard

  13. Protection & Diagnosis: Per-channel current-limiting protection, bidirectional surge absorption, reverse polarity protection, open-circuit/short-circuit fault detection, real-time fault status upload to main controller

  14. Mechanical Performance: Continuous vibration resistance 8g (10–150Hz); Shock resistance 25g pulse, duration 11ms

  15. Core Feature: Single-module hot swappable under energized rack

  16. Certifications: CE, UL508, IEC60204-1, NRC Class 1E nuclear safety certification

  17. Aging Test Standard: 72-hour full-load high-low temperature cyclic aging test

  18. Design Service Life: ≥100,000 hours of 24/7 uninterrupted continuous operation

  19. Warranty: 12-month global unified warranty

Application Fields

  1. Nuclear power plant Common Q Class 1E safety I&C racks: Analog drive terminal for auxiliary cabinet regulating valves, cooling water flow actuators and damper positioners

  2. AP1000 nuclear Post-Accident Monitoring System (PAMS: Analog signal output conversion board for auxiliary containment regulating actuators and vent valves

  3. Thermal & hydropower station control systems: Analog output module for boiler feedwater control valves, air damper actuators and turbine governor positioners

  4. Explosion-proof petrochemical DCS distributed control system: Drive wiring card for reactor regulating valves, pipeline flow control actuators and tank level adjustment valves

  5. Offshore oil & gas explosion-proof automation racks: Signal isolation drive interface for wellhead choke valves, medium flow control actuators and heating regulator positioners

  6. Large diesel generator safety sequential control cabinets: Analog output subcard for fuel adjustment actuators, cooling fan frequency converters and exhaust damper regulators

  7. Municipal large-scale water treatment safety interlock DCS: Isolation drive terminal for inlet flow control valves, dosing pump regulators and outlet water level adjustment actuators

  8. Metallurgy and cement kiln production lines: Analog drive module for kiln air-fuel ratio regulating valves, raw material feeding actuators and flue gas exhaust dampers


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