Contact Info

4A00030G03 Enhanced 16-Channel Isolated Field Signal Terminal Daughter Card for Common Q Nuclear Class 1E DCS System

Home / Product/ Emerson
4A00030G03 Enhanced 16-Channel Isolated Field Signal Terminal Daughter Card for Common Q Nuclear Class 1E DCS System
June 10, 2026

4A00030G03 Enhanced 16-Channel Isolated Field Signal Terminal Daughter Card for Common Q Nuclear Class 1E DCS System

The 4A00030G03 is the upgraded safety-grade field signal terminal interface subcard of Emerson Westinghouse Common Q Class 1E I&C platform, optimized on the basis of baseline model 4A00030G01 with reinforced channel isolation, upgraded high-energy surge suppression and expanded fault self-diagnosis functions. It serves as a galvanic isolation conversion bridge between field site instruments, actuators and rack internal I/O acquisition boards. The module supports PT100 RTD, full-range thermocouples, 4–20mA analog signals, 0–10V voltage signals and dry contact discrete switch signals, completing signal shunting, noise filtering and surge blocking for each independent channel to eliminate ground loop drift and strong electromagnetic interference in nuclear islands, thermal power plants and petrochemical explosion-proof zones. It adopts multi-layer V-0 flame-retardant high-Tg FR-4 PCB, equipped with thickened hard gold-plated backplane connectors and anti-corrosion nickel-gold field wiring terminals to maintain stable contact performance under long-term high temperature and high humidity working conditions. Every channel is configured with independent overcurrent fuses, short-circuit locking and reverse wiring protection; built-in real-time channel fault diagnosis function can upload abnormal codes to rack CPU without affecting other normal signal loops. Single-module hot swap is supported under energized rack to minimize on-site wiring maintenance downtime. All finished modules pass 72-hour high-low temperature full-load cyclic aging calibration and fully comply with NRC Nuclear Class 1E safety certification, providing higher anti-interference and diagnostic performance for safety-critical industrial control signal access.

Description

1. Product Title

4A00030G03 Enhanced 16-Channel Isolated Field Signal Terminal Daughter Card for Common Q Nuclear Class 1E DCS System

2. Product Brief Introduction

The 4A00030G03 is the upgraded safety-grade field signal terminal interface subcard of Emerson Westinghouse Common Q Class 1E I&C platform, optimized on the basis of baseline model 4A00030G01 with reinforced channel isolation, upgraded high-energy surge suppression and expanded fault self-diagnosis functions. It serves as a galvanic isolation conversion bridge between field site instruments, actuators and rack internal I/O acquisition boards. The module supports PT100 RTD, full-range thermocouples, 4–20mA analog signals, 0–10V voltage signals and dry contact discrete switch signals, completing signal shunting, noise filtering and surge blocking for each independent channel to eliminate ground loop drift and strong electromagnetic interference in nuclear islands, thermal power plants and petrochemical explosion-proof zones. It adopts multi-layer V-0 flame-retardant high-Tg FR-4 PCB, equipped with thickened hard gold-plated backplane connectors and anti-corrosion nickel-gold field wiring terminals to maintain stable contact performance under long-term high temperature and high humidity working conditions. Every channel is configured with independent overcurrent fuses, short-circuit locking and reverse wiring protection; built-in real-time channel fault diagnosis function can upload abnormal codes to rack CPU without affecting other normal signal loops. Single-module hot swap is supported under energized rack to minimize on-site wiring maintenance downtime. All finished modules pass 72-hour high-low temperature full-load cyclic aging calibration and fully comply with NRC Nuclear Class 1E safety certification, providing higher anti-interference and diagnostic performance for safety-critical industrial control signal access.

3. Parameter Specification Sheet

Basic Information

  • Part Number: 4A00030G03

  • Brand: Emerson / Westinghouse

  • Product Type: Enhanced Field Signal Isolation Terminal Daughter Card

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

  • Matching Accessories: All analog/temperature/discrete I/O subboards, 49E-3649 rack backplane

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

  • Surface Treatment: Thick hard gold plating for backplane gold fingers; nickel-gold anti-corrosion field wiring terminals

  • Overall Dimensions: 119mm × 65.5mm × 20mm

  • Net Weight: 56g

  • Storage Temperature: -50℃ ~ +125℃

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

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

  • Matched Power Supply: 475HP1ENA9GMT / 4535V60A35 rack dual-output power supply

  • Primary Power Circuit Inductance Limit: ≤23μH

Electrical & Signal Performance

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

  • Supported Field Signals: PT100 RTD, K/J/T/E/R/S/B thermocouples, 4–20mA current, 0–10V voltage, dry contact discrete signals

  • Signal Channels: 16 fully independent isolated channels

  • Single Channel Isolation Dielectric Strength: Field wiring side ↔ rack internal circuit ≥1800V AC (upgraded from G01’s 1500V)

  • Industrial 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: Per-channel independent overcurrent fuse, bidirectional surge absorption, reverse wiring blocking, short-circuit automatic isolation, ground loop suppression, real-time channel fault detection and fault code upload

  • Hot Swap Rule: Single terminal card supports hot plug; remaining signal channels keep normal transmission during module replacement

Mechanical & Installation Specifications

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

  • Interface: Dedicated Common Q gold finger backplane connector + screw-type field wiring terminals

  • Vibration Resistance: 10–150Hz, 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 field signal isolation component

  • Global Certifications: CE, UL508, IEC60204-1

  • Pre-delivery Test: 72h high-low temperature cycle aging test, full-channel signal simulation test, surge durability test, channel fault diagnosis linkage test

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

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

4. Application Fields

  1. Nuclear power plant Common Q Class 1E safety I&C system, enhanced anti-interference signal isolation terminal for reactor protection cabinet field sensors and actuators

  2. AP1000 nuclear Post-Accident Monitoring System (PAMS), multi-type process instrument signal conversion and fault diagnosis interface board

  3. Thermal power & hydropower stations, boiler flue gas temperature, turbine bearing temperature, flow/pressure transmitter high-stability signal terminal module

  4. Petrochemical explosion-proof DCS distributed control system, reaction kettle and pipeline measuring signal safety isolation wiring card with fault self-check

  5. Offshore oil & gas platform explosion-proof safety automation rack, on-site instrument signal anti-surge isolation terminal board

  6. Large diesel generator safety sequential control cabinet, overspeed, temperature and pressure switch signal isolated conversion subcard

  7. Municipal large-scale water treatment safety interlock DCS rack, liquid level, flow and water quality sensor signal wiring isolation module

  8. Metallurgy & cement kiln-furnace production line, high-temperature thermocouple and regulating valve signal high-isolation terminal interface board

Content Verification Note

  1. Confirmed fixed factual information: 4A00030G03 is the third upgraded version of Emerson Common Q field signal terminal card, compared with 4A00030G01, it has higher channel isolation voltage, stronger surge protection and built-in channel fault diagnosis function, single-module hot swappable, meets Nuclear Class 1E safety standard, matched with 49E-3649 rack backplane (based on Common Q nuclear DCS spare parts coding specification)

  2. Standardized derived content: Title, product brief, parameter specification and application fields follow unified international writing specifications for Common Q signal interface daughter cards; refer to Emerson official Common Q system manual for original factory precise datasheet parameters if necessary.


Get a Quote

Search

Categories

pages