ALSTOM NRD108028 8RDB43655 SA43655.E Industrial intermediate relay module

ALSTOM NRD108028 8RDB43655 SA43655.E Industrial intermediate relay module

SPECIFIC PARAMETERS​

Brand ALSTOM​

Product Series NRD Series Industrial Intermediate Relay Modules​

Product Type Industrial-grade Sealed Intermediate Relay Module​

Model NRD108028 8RDB43655 SA43655.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 8 Sets of Changeover Contacts (NO+NC)​

Contact Capacity AC: AC-15 250V 10A DC: DC-13 24V 8A​

Contact Life Mechanical Life ≥10,000,000 Cycles Electrical Life ≥100,000 Cycles (Rated Load)​

Operation Time ≤15ms (Pick-up) ≤10ms (Drop-out)​

Coil Power Consumption Typical 1.2W Maximum 1.5W​

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

Size 100mm×160mm×50mm (Length×Width×Height)​

Weight 0.8kg​

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

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

Diagnostic Functions Contact Status Monitoring Coil Overvoltage Protection Module Self-diagnosis Fault Signal Feedback​

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) ≥1,000,000 Hours​

Housing Material Flame-retardant ABS Engineering Plastic Sealed Design​

Contact Material Silver Alloy Contacts (AgNi Alloy)​

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

PRODUCT PERFORMANCE​

Adopts 8 sets of changeover contacts configuration, supporting simultaneous switching of multi-circuit signals, adapting to complex control link layouts and improving system integration efficiency​

Silver alloy contact material combined with sealed structure design, mechanical life over 10 million cycles and electrical life over 100,000 cycles, ensuring long-term high-frequency switching reliability​

5000Vac high electrical isolation between coil and contacts, effectively resisting electromagnetic interference and voltage surges in industrial sites, ensuring the integrity of signal switching and equipment safety​

Industrial-grade wide-temperature adaptability, can work stably for a long time in the temperature range of -40℃ to 70℃ and 5%-95% non-condensing humidity environment, adapting to extreme industrial working conditions​

Supports 24VDC wide-range control voltage input, compatible with unstable power supply environments in industrial sites, and coil surge-resistant design can avoid damage from voltage fluctuations​

Dual installation adaptation, supporting both standard 3U rack slot installation and DIN rail fixing, flexibly adapting to different cabinet layout needs​

Built-in contact status monitoring and fault feedback functions, which can real-time feedback switching status, and with self-diagnostic mechanism, fault location is fast and accurate, reducing operation and maintenance costs​

Flame-retardant ABS housing and sealed design, dustproof, moisture-proof and corrosion-resistant, adapting to dusty and high-humidity harsh environments in industrial sites​

Rapid action response, pick-up time ≤15ms and drop-out time ≤10ms, meeting the rapid switching needs of industrial control circuits and ensuring timely 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 control link stability​