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ABB DO820 3BSE008514R1 Overview
The ABB DO820 3BSE008514R1 is an 8-channel digital output relay module designed for industrial automation systems. It is widely used in ABB Advant 800xA / S800 I/O-based PLC and DCS environments..jpg)
| Parameter | Description |
|---|---|
| Model | DO820 3BSE008514R1 (Order/Catalog No. 3BSE008514R1) |
| Function | 8 individually isolated digital outputs; each channel supports 24-230 V AC/DC, maximum continuous current 3 A, power factor > 0.4, output power ≈ 42 W |
| Voltage Range | 24 V – 230 V AC or DC |
| Output Current | 3 A (per channel) |
| Interface | Optically isolated outputs; used with terminal units TU811, TU813, TU831, TU836, TU837, TU851, etc. |
| Dimensions | Approx. 102 mm (D) × 119 mm (H) × 45 mm (W) |
| Weight | Approx. 0.3 kg |
| Environmental Conditions | Operating −40 °C to +70 °C; storage −40 °C to +85 °C; relative humidity 5% – 95% (non-condensing) |
Application Areas
Used in control systems across industries such as power generation, steelmaking, pulp and paper, marine, and chemical plants, the DO820 provides reliable digital output control for process control, machine automation, and production line systems.
Key Features
High Reliability: Each output channel is independently isolated and equipped with optical isolation and EMC protection, ensuring stable operation in harsh industrial environments.
Flexible Configuration: Supports multiple output modes; each channel can be configured via software for customized control logic, allowing fast adaptation to various applications.
Strong Compatibility: Specially designed for ABB Advant 800xA / S800 I/O systems; supports direct rack installation, hot-swapping, and online reconfiguration.
Enhanced Safety: Built-in voltage monitoring; any power supply abnormality triggers an error signal and illuminates a warning LED, simplifying fault diagnosis.
Typical Applications
DCS monitoring systems in power plants
Automation control in steel mills and paper mills
External device actuation for robots and CNC machines
Switching control for valves, relays, and indicator lights in process systems
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