ALSTOM NRD109475 8RDA44670G01 SA44670.E controller module

ALSTOM NRD109475 8RDA44670G01 SA44670.E controller module

SPECIFIC PARAMETERS​

Brand ALSTOM​

Product Series NRD Series Industrial Intermediate Relay Modules​

Product Type Industrial-grade Semi-sealed Intermediate Relay Module​

Model NRD109475 8RDA44670G01 SA44670.E​

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 9 Sets of Changeover Contacts (NO+NC)​

Contact Capacity AC: AC-15 250V 14A DC: DC-13 24V 11A​

Contact Life Mechanical Life ≥13,000,000 Cycles Electrical Life ≥170,000 Cycles (Rated Load)​

Operation Time ≤12ms (Pick-up) ≤9ms (Drop-out)​

Coil Power Consumption Typical 1.0W Maximum 1.3W​

Isolation Level 5000Vac Electrical Isolation Between Coil and Contacts 2500Vac Electrical Isolation Between Contact Groups​

Size 101mm×161mm×50.5mm (Length×Width×Height)​

Weight 0.87kg​

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 Control Systems​

Diagnostic Functions Real-time Contact Status Monitoring Coil Overvoltage/Undervoltage Protection Module Self-diagnosis Fault Signal Feedback Circuit Short Circuit Detection Contact Wear 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) ≥1,250,000 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 and Anti-oxidation Design​

Insulation Resistance ≥100MΩ (500VDC)​

PRODUCT PERFORMANCE​

Adopts 9 sets of high-density changeover contacts configuration, balancing multi-circuit switching needs and load driving capacity, adapting to complex industrial control links and improving system integration flexibility​

High-conductivity and wear-resistant silver alloy (AgSnO₂) contact material, mechanical life over 13 million cycles and electrical life over 170,000 cycles, meeting the long-term stable operation in high-frequency and medium-high load scenarios​

5000Vac high electrical isolation between coil and contacts, effectively resisting electromagnetic interference and voltage surges in industrial sites, ensuring the integrity and accuracy of key control 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, high temperature and high humidity​

24VDC wide-range control voltage input design, compatible with power supply fluctuations in industrial sites, coil surge protection can resist instantaneous voltage impact and avoid module damage​

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

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

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

Rapid action response, pick-up time ≤12ms and drop-out time ≤9ms, meeting the rapid switching needs of industrial control circuits and ensuring real-time and efficient execution of control commands​

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