The ABB DI821 (3BSE008550R1) serves as a critical interface for high-voltage digital signal acquisition. This module specifically handles 230V AC/DC inputs across eight isolated channels. It effectively bridges field devices and the central controller within an S800 I/O station. Consequently, the hardware provides accurate status monitoring for industrial equipment operating at mains voltage levels. The DI821 excels in applications requiring direct connection to high-potential switches and relays.
Robust Construction and Environmental Endurance
Engineers designed this Sweden-made module to thrive in challenging industrial climates. The DI821 maintains stable operation despite significant fluctuations in temperature and humidity. Furthermore, the 0.18kg lightweight chassis utilizes durable materials to resist mechanical vibration. Its compact footprint allows for efficient mounting on standard ModuleBus bases. This resilient design ensures long-term reliability for critical automation infrastructure in power and process plants.
Advanced System Integration and Safety
This S800 I/O module integrates seamlessly with AC 800M controllers and external Ethernet routers. It provides high-integrity electrical isolation between the field circuitry and the system backplane. Additionally, the DI821 supports comprehensive diagnostic features to detect channel faults instantly. These capabilities allow maintenance teams to identify wiring issues without extensive manual testing. Ultimately, the module enhances the overall safety and availability of the distributed control system.
Technical Specifications
- Brand: ABB
- Model: DI821
- Part Number: 3BSE008550R1
- Input Channels: 8 Channels (Isolated)
- Rated Voltage: 230V AC/DC
- Product Range: S800 I/O System
- Country of Origin: Sweden
- Weight: 0.18 kg
- Dimensions: 4.5 x 10.5 x 12 cm
- HS Code: 8537101190
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