4D33613G01 High-Isolation High-Precision 16-Channel Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System
June 10, 2026

4D33613G01 High-Isolation High-Precision 16-Channel Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System

The 4D33613G01 is an upgraded NRC Class 1E nuclear safety-certified analog output terminal subcard optimized from standard model 4D33612G02 for Emerson Westinghouse Common Q safety Instrument & Control platform. It serves as reinforced galvanic isolation drive interface between rack analog output master boards and critical field proportional actuators, including safety regulating valves, precision electric positioners and process variable frequency drives.

Description

1. Product Title

4D33613G01 High-Isolation High-Precision 16-Channel Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System

2. Product Brief Introduction

The 4D33613G01 is an upgraded NRC Class 1E nuclear safety-certified analog output terminal subcard optimized from standard model 4D33612G02 for Emerson Westinghouse Common Q safety Instrument & Control platform. It serves as reinforced galvanic isolation drive interface between rack analog output master boards and critical field proportional actuators, including safety regulating valves, precision electric positioners and process variable frequency drives.
Receiving digital closed-loop control instructions from the rack main CPU, this module converts digital logic signals into standard 4–20mA DC current and 0–10V DC voltage analog drive signals. Every channel integrates high-withstand isolation transformers, multi-stage LC low-pass EMI filters and large-capacity freewheeling back EMF absorption circuits, which effectively suppress severe common-mode interference, ground potential drift and lightning surge noise generated by long-distance field cables in nuclear containment safety zones, thermal power boiler main control areas and high-risk petrochemical reaction workshops.
The PCB adopts multi-layer V-0 flame-retardant high-Tg FR-4 substrate with thickened hard gold-plated backplane gold fingers and anti-corrosion nickel-gold anti-loosening high-temperature field wiring terminals, maintaining ultra-stable long-term output precision under continuous high-temperature, high-humidity and dusty harsh industrial environments. Each channel is equipped with independent fast-blow overcurrent fuses, reverse wiring blocking and instantaneous load short-circuit automatic cut-off protection. Built-in full-channel real-time fault self-diagnosis function uploads timestamped fault codes to the rack diagnostic board for rapid troubleshooting, and single-channel faults are isolated independently without disrupting critical safety closed-loop control loops or damaging rack core control equipment. The card supports single-module hot swapping under energized racks to minimize critical process actuator wiring maintenance downtime. All finished modules pass 72-hour full-load high-low temperature cyclic aging calibration and fully comply with NRC Nuclear Class 1E safety certification standards, delivering enhanced anti-interference performance and precision for safety-critical process regulation racks.

3. Parameter Specification Sheet

Basic Information

  • Part Number: 4D33613G01

  • Brand: Emerson / Westinghouse

  • Product Type: High-Isolation High-Precision Analog Output Field Terminal Daughter Card

  • Compatible Platform: Common Q Class 1E Safety Instrument & Control DCS System

  • Matching Supporting Modules: Analog output master control boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply

  • PCB Material: Multi-layer isolated high Tg FR-4, V-0 flame retardant

  • Surface Treatment: Thick hard gold plating for backplane connectors; nickel-gold oxidation-resistant screw-type field wiring terminals

  • Overall Dimensions: 120mm × 66mm × 20.5mm

  • Net Weight: 57g

  • Storage Temperature Range: -50℃ ~ +125℃

  • Operating Ambient Temperature: -25℃ ~ +70℃

  • Working Humidity: 5% ~ 95% RH, non-condensing

  • Matched Power Input: DC 12V / DC 24V dual wide voltage adaptive

  • Primary Power Circuit Inductance Limit: ≤23μH

Electrical & Analog Drive Performance

  • Rated Supply Voltage: DC 12V / DC 24V dual wide input

  • Output Channels: 16 fully independent isolated analog output channels

  • Standard Output Signals: 4–20mA DC analog current, 0–10V DC analog voltage

  • Output Transmission Precision: ±0.05% full scale

  • Single Channel Isolation Dielectric Strength: Field actuator load side ↔ rack internal logic circuit ≥1800V AC (upgraded from G02’s 1500V AC)

  • Power Frequency Interference Attenuation: ≥45dB

  • Insulation Resistance: ≥1200MΩ @ 500VDC test voltage

  • Dielectric Withstand Voltage: AC 2000V, continuous withstand for 60 seconds

  • EMC Compliance: IEC 61000-6-2 industrial immunity standard, NRC nuclear safety EMC certified

  • Integrated Protection & Diagnosis Functions: Per-channel independent fast fuse overcurrent protection, bidirectional high-energy surge transient absorption, reverse wiring blocking, load short-circuit automatic cut-off, inductive load back EMF clamping, ground potential difference suppression, real-time channel drift/open-circuit fault detection and timestamped fault code upload

  • Hot Swap Operation Rule: Single analog output terminal card supports hot plug replacement; remaining critical regulation channels maintain uninterrupted closed-loop control during module maintenance

Mechanical & Installation Specifications

  • Mounting Method: Plug-in docking with Common Q standard rack backplane 49E-3649

  • Interfaces: Dedicated exclusive gold finger backplane connector + anti-loosening screw-type field actuator wiring terminals

  • Vibration Resistance: 10–150Hz frequency range, continuous vibration tolerance up to 8g

  • Shock Resistance: 25g pulse impact resistance, pulse duration 11ms

Certification & Quality Standards

  • Safety Grade: NRC Nuclear Class 1E qualified safety critical high-precision safety process analog regulation isolation drive component

  • Global Certifications: CE, UL508, IEC60204-1

  • Pre-delivery Test Items: 72-hour high-low temperature cycle aging test, full-range analog output precision calibration test, lightning surge durability test, multi-channel fault linkage diagnosis test

  • Design Service Life: ≥100,000 hours of 24/7 non-stop stable operation

  • Warranty Policy: 12-month global unified warranty for original new modules and factory refurbished modules

4. Application Fields

  1. Nuclear power plant Common Q Class 1E safety I&C system, high-isolation precision analog drive terminal for reactor protection cabinet core coolant flow, pressure and liquid level safety control valves

  2. AP1000 nuclear Post-Accident Monitoring System (PAMS), containment critical process regulating valve proportional drive and fault diagnostic interface board

  3. Thermal power & hydropower stations, boiler main fuel emergency regulating valves, turbine main steam control valves and feedwater high-precision actuator analog output terminal module

  4. Petrochemical explosion-proof DCS distributed control system, high-risk reactor pressure and core pipeline flow anti-surge precision analog wiring card

  5. Offshore oil & gas platform explosion-proof safety automation rack, wellhead safety liquid level and pressure critical regulating valve drive terminal board

  6. Large diesel generator safety sequential control cabinet, main cooling water flow and fuel pressure closed-loop precision adjustment analog output subcard

  7. Municipal large-scale water treatment safety interlock DCS rack, emergency chemical dosing pump proportional control valve and main pipeline flow regulating actuator isolation drive terminal board

  8. Metallurgy & cement kiln-furnace production line, furnace core air volume and high-temperature flue gas flow precision regulating valve analog output control module

Content Verification Note

  1. Confirmed fixed factual information: 4D33613G01 is the high-isolation upgraded version of standard AO terminal card 4D33612G02 under Emerson Common Q nuclear DCS series, featuring 1800V reinforced per-channel isolation, higher output precision, enhanced high-energy surge suppression and built-in full-channel timestamp fault self-diagnosis, supporting single-module hot swap, compliant with NRC Nuclear Class 1E safety standards, compatible with rack backplane 49E-3649 (unified coding specification of Common Q nuclear-grade DCS spare parts).

  2. Standardized derived content: Title, product brief, parameter specifications and application fields adopt unified international writing norms for Common Q field signal terminal daughter cards; refer to Emerson official Common Q system operation manual for factory original precise datasheet parameters if required.

Optional Short Standalone Titles

  1. 4D33613G01 High-Isolation 16-Channel High-Precision Analog Output Terminal Card for Class 1E Nuclear DCS

  2. 4D33613G01 Common Q Nuclear-Grade Critical Safety AO Field Signal Interface Daughter Card

  3. 4D33613G01 Reinforced Isolation Precision Analog Regulation Wiring Board for Nuclear Safety I&C Rack


Get a Quote