4D33916G01 Standard 16-Channel Isolated Sourcing Active Discrete Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS_Ningde Androld Automation Equipment Co.,Ltd.

June 10, 2026

4D33916G01 Standard 16-Channel Isolated Sourcing Active Discrete Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS

NRC Class 1E nuclear safety certified, the 4D33916G01 is a high-density standard isolated sourcing-type active digital output terminal daughter card developed exclusively for Emerson Westinghouse Common Q nuclear safety I&C platform. It converts digital safety logic commands from master logic controllers into isolated 24VDC sourcing active switch signals, used to drive nuclear safety field loads including safety relay coils, solenoid pilot valves, trip amplifier enable inputs, fault indicator lamps and interlock trigger solid-state circuits inside nuclear auxiliary safety systems.

Description

Parameter Specifications

Part Number: 4D33916G01
Manufacturer: Emerson Westinghouse
Compatible System: Common Q Class 1E Safety Instrument & Control DCS System
Matching Accessories: Sourcing discrete output master logic boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply
PCB Material: Multi-layer isolated V-0 flame-retardant high-Tg FR-4 substrate
Dimension & Weight: 145mm × 66mm × 20.6mm; Net weight: 63g
Ambient Operating Envelope
Operating Temp: -25℃ ~ +70℃
Storage Temp: -50℃ ~ +125℃
Humidity: 5%–95% RH, non-condensing
Power Supply: DC 12V / DC 24V dual adaptive wide-range input
Output Channels: 16 fully independent galvanic isolated sourcing discrete output channels
Drive Type: 24VDC sourcing output (source positive voltage to load, load negative connected to field ground)
Channel Load Capacity
Continuous rated output current per channel: 0.5A
Instant peak withstand current: 0.8A
Max withstand load inductive kickback voltage: ±40VDC
Isolation Performance
Channel-to-backplane isolation: 1500V AC
Dielectric withstand: 2000V AC / 60s
Insulation resistance: ≥1200MΩ @ 500VDC
EMC Index: Power frequency interference attenuation ≥40dB, fully compliant with IEC 61000-6-2 industrial EMC standard
Protection & Intelligent Diagnosis Functions
Per-channel precise constant current limiting protection
Bidirectional TVS high-energy surge absorption circuit for inductive load kickback suppression
Reverse wiring polarity lockout anti-damage protection
Real-time detection of output loop open-circuit / short-circuit / overload overcurrent fault
Time-stamped fault status + channel number uploaded to master controller
Mechanical Reliability
Continuous vibration resistance: 8g (10–150Hz)
Shock resistance: 25g pulse, duration 11ms
Core Feature: Single module hot swappable under energized rack without interrupting safety interlock drive loops
Certifications: CE, UL508, IEC60204-1, NRC Class 1E nuclear safety qualification
Aging Validation Standard: 72-hour full-load high-low temperature cyclic aging test
Design Service Life: ≥100,000 hours of 24/7 unattended continuous operation
Warranty Period: 12-month global unified warranty for original & factory refurbished modules

Application Fields

Nuclear Power Plant Common Q Safety I&C Racks
High-density multi-point sourcing active drive terminal for reactor auxiliary cabinets, outputting 24VDC sourcing signals to batches of safety interlock relay coils, small pilot isolation solenoid valves and fault status indicator lamps.
AP1000 Nuclear Post-Accident Monitoring System (PAMS)
Isolated multi-channel sourcing digital output board for containment accident status indicator lights, passive cooling auxiliary pilot valves and post-accident interlock trigger relays.
Thermal & Hydropower Station Main Control Systems
High-density sourcing DO module for boiler safety alarm lamps, auxiliary isolation solenoid valves and turbine protection interlock relay coils.
High-Risk Explosion-Proof Petrochemical DCS Distributed Control System
Field high-density sourcing drive wiring card for reactor safety alarm indicators, auxiliary ESD pilot solenoids and zone safety interlock relays in hazardous areas.
Offshore Oil & Gas Explosion-Proof Automation Racks
Isolation multi-channel sourcing drive interface for platform safety warning lights, wellhead auxiliary pilot solenoid valves and separator protection interlock relays.
Large Diesel Generator Safety Sequential Control Cabinets
Multi-point sourcing discrete output subcard for genset fault alarm lamps, cooling water bypass pilot solenoids and overspeed protection interlock relay coils.
Municipal Large-Scale Water Treatment Safety Interlock DCS Systems
High-density isolation sourcing drive terminal for pipeline fault warning lamps, emergency isolation pilot valves and chemical dosing system interlock relays.
Metallurgy & Cement Kiln Production Lines
Multi-channel sourcing drive module for kiln safety alarm indicators, flue gas auxiliary isolation solenoids and raw material feeding protection interlock relays.

Series Iteration Rule (Unified with all Common Q I/O Terminal Boards)

G01: Standard basic industrial version, 1500V isolation, 40dB EMI attenuation, basic loop protection & simple fault alarm
G02: Reinforced industrial enhanced version, 1800V isolation, 45dB attenuation, upgraded fast overload/short-circuit fault diagnosis
G03: Gen3 nuclear high-isolation grade, 2000V isolation, 50dB attenuation, fault waveform capture + non-volatile historical fault storage
G04: Gen4 flagship ultra-high isolation, 2200V isolation, 55dB attenuation, nanosecond high-precision timestamp, expanded operating temperature range
G05: Gen5 premium seismic qualified grade, 2500V isolation, 60dB attenuation, anti-loose locking terminal structure, full IEEE 344 seismic certification, extended service life & warranty
G06: Gen6 extreme super-isolation flagship, 3000V isolation, 65dB attenuation, nuclear anti-radiation component screening, double anti-loose terminals, 15-year power-off fault data retention, full seismic & radiation dual certification

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