4D33865G01 Standard 16-Channel Isolated Discrete Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS
Description
Parameter Specifications
Part Number: 4D33865G01
Manufacturer: Emerson Westinghouse
Compatible System: Common Q Class 1E Safety Instrument & Control DCS System
Matching Accessories: 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
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 discrete output channels
Drive Topology: Isolated transistor sinking/sourcing switching output for low-power safety field loads
Per-channel Continuous Rated Load Current: 0.7A
Isolation Performance
Channel-to-backplane isolation: 1500V AC
Dielectric withstand: 2000V AC / 60s
Insulation resistance: ≥1200MΩ @ 500VDC
EMC Index: Power frequency interference attenuation ≥40dB, compliant with IEC 61000-6-2 industrial EMC standard
Protection & Diagnosis Functions
Per-channel precise current limiting protection
Bidirectional TVS high-energy surge absorption
Reverse polarity miswiring lockout protection
Real-time detection of output loop open-circuit / short-circuit load fault
Time-stamped fault status 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
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: 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 safety switching drive terminal for reactor auxiliary cabinets, driving batches of cooling system isolation solenoid valves, containment multi-group accident warning light arrays and auxiliary safety control contactors.
AP1000 Nuclear Post-Accident Monitoring System (PAMS)
High-density isolated switching output board for containment multi-channel auxiliary vent isolation valves and full-set multi-stage accident annunciator alarm devices.
Thermal & Hydropower Station Main Control Systems
High-density DO output module for boiler batch emergency drain solenoid valves, multi-group flue gas safety isolation dampers and unit multi-path fault alarm buzzers.
Explosion-Proof Petrochemical DCS Distributed Control System
High-density field drive wiring terminal card for reactor cluster emergency shut-off solenoid valves, storage tank multi-group over-limit alarm horns and process pump auxiliary contactor groups.
Offshore Oil & Gas Explosion-Proof Automation Racks
Isolation multi-channel drive interface for wellhead multi-way ESD emergency shutdown solenoids, platform multi-stage warning light banks and heating equipment control contactor groups.
Large Diesel Generator Safety Sequential Control Cabinets
Multi-point discrete output subcard for unit emergency stop solenoid groups, multi-path core machinery fault alarm horns and cooling water pump control contactor arrays.
Municipal Large-Scale Water Treatment Safety Interlock DCS
High-density isolation switching drive terminal for pipeline inlet batch emergency shut-off solenoids, chemical dosing equipment contactor groups and sedimentation tank multi-point overflow alarm devices.
Metallurgy & Cement Kiln Production Lines
High-density multi-point discrete drive module for kiln batch high-temperature isolation solenoids, dust removal fan control contactor groups and kiln multi-channel over-temperature protection alarm horns.
Get a Quote