ALSTOM NRD108034 8RDB44674G01 SA44674.C controller module

ALSTOM NRD108034 8RDB44674G01 SA44674.C controller module

SPECIFIC PARAMETERS​

Brand ALSTOM​

Product Series NRD Series Industrial Intermediate Relay Modules​

Product Type Industrial-grade Sealed Intermediate Relay Module​

Model NRD108034 8RDB44674G01 SA44674.C​

Working Voltage Control Voltage: 24VDC Adaptation Range: 20.4-26.4VDC​

Working Temperature -40℃ to 70℃​

Storage Temperature -55℃ to 85℃​

Relative Humidity 5% to 95% Non-condensing (No Dew Formation)​

Protection Level IP20 (Board-mounted Installation)​

Installation Method Standard 3U Rack Slot Installation/ DIN Rail Installation (Dual Adaptation)​

Contact Configuration 8 Sets of Changeover Contacts (NO+NC)​

Contact Capacity AC: AC-15 250V 15A DC: DC-13 24V 12A​

Contact Life Mechanical Life ≥14,000,000 Cycles Electrical Life ≥180,000 Cycles (Rated Load)​

Operation Time ≤11ms (Pick-up) ≤8ms (Drop-out)​

Coil Power Consumption Typical 1.1W Maximum 1.4W​

Isolation Level 5000Vac Electrical Isolation Between Coil and Contacts 3000Vac Electrical Isolation Between Contact Groups​

Size 102mm×162mm×51mm (Length×Width×Height)​

Weight 0.88kg​

Certification Qualification CE UL IEC 60947-5-1 IEC 61131-3 RoHS TÜV​

Compatible System ALSTOM ALSPA Control Systems Industrial DCS/SCADA Systems Power Protection Devices Rail Transit TCMS Systems Steam Turbine Auxiliary Control Systems​

Diagnostic Functions Real-time Contact Status Monitoring Coil Overvoltage/Undervoltage Protection Module Self-diagnosis Fault Signal Feedback Circuit Short Circuit Detection Contact Adhesion Warning​

Anti-interference Level Complies with EN 55032/EN 61000-6-2 Industrial EMC Standards​

Vibration and Shock Resistance Complies with IEC 61373 Class 1 Standard​

MTBF (Mean Time Between Failures) ≥1,300,000 Hours​

Housing Material Flame-retardant ABS+Glass Fiber Reinforced Engineering Plastic Semi-sealed Structure​

Contact Material Silver Alloy Contacts (AgSnO₂ Alloy)​

Coil Type Low-power Sealed Coil Surge-resistant Design​

Wiring Method Screw-type Terminal Blocks Anti-loosening Design​

Insulation Resistance ≥100MΩ (500VDC)​

PRODUCT PERFORMANCE​

Adopts 8 sets of changeover contacts configuration, adapting to multi-circuit signal switching and medium-high load driving needs, balancing system integration flexibility and operational stability​

High-conductivity and wear-resistant silver alloy (AgSnO₂) contact material, mechanical life over 14 million cycles and electrical life over 180,000 cycles, meeting the long-term reliable operation of high-frequency switching scenarios​

5000Vac high electrical isolation between coil and contacts, 3000Vac isolation between contact groups, effectively resisting electromagnetic interference and voltage surges in industrial sites, ensuring the integrity of signal transmission​

Industrial-grade wide-temperature adaptability, can work stably in the temperature range of -40℃ to 70℃ and 5%-95% non-condensing humidity environment, adapting to extreme working conditions such as alpine and high temperature​

24VDC wide-range control voltage input design, compatible with power supply fluctuations in industrial sites, coil surge protection can avoid module damage caused by abnormal voltage​

Dual installation methods for flexible adaptation, both standard 3U rack integration and independent DIN rail fixing are available, meeting the layout and installation needs of different control cabinets​

Built-in contact adhesion warning and circuit short circuit detection functions, combined with a comprehensive self-diagnostic mechanism, accurate fault location, greatly shortening operation and maintenance troubleshooting time​

Flame-retardant ABS+glass fiber reinforced housing and semi-sealed design, dustproof, moisture-proof and corrosion-resistant, adapting to harsh environments such as high dust and humidity in industrial sites​

Rapid action response, pick-up time ≤11ms and drop-out time ≤8ms, meeting the rapid switching needs of industrial control circuits and ensuring real-time execution of control commands​

Seamlessly compatible with ALSTOM’s full range of control systems, no additional adaptation components required, simplifying system integration process and improving the overall stability of control links​