Sweden
ABB DO820 Digital Output Relay Module (Model 3BSE008514R1) Overview
| Item | Main Parameters / Features |
|---|---|
| Module Type | 8-channel digital output relay (DO) |
| Output Voltage | 24 V DC / 230 V AC (supports both DC and AC) |
| Rated Current | ≤ 3 A per channel |
| Output Contacts | Normally-open (NO) relay contacts, optically isolated, with independent isolation per channel |
| Indicators | Each channel equipped with an LED status indicator |
| Protection Rating | IP20 (some references list IP67) |
| Operating Temperature | –25 °C to +60 °C |
| Dimensions / Weight | Approx. 45 mm × 102 mm × 119 mm; weight ≈ 0.23 kg |
| Compatible Platforms | ABB 800xA / S800 I/O systems; supports PROFIBUS DP / PROFINET communication |
| Main Functions | High-density digital output, relay isolation, short-circuit / current-limit protection, programmable delay, HART-compatible input (on some versions) |
| Typical Applications | Control of relays, valves, motors, and indicator lamps; used in process control, alarm systems, data acquisition, and discrete control systems |
| Advantages | High reliability, modular design, hot-swap capability, online reconfiguration, IP-rated protection, easy DIN-rail installation |
Product Highlights
High Reliability and Safety
Each output channel features optical isolation, ensuring electrical separation and preventing signal interference.
Built-in short-circuit and current-limiting protection enhances overall system safety.
Flexible Voltage Compatibility
Supports both 24 V DC and 230 V AC operation, making it suitable for a wide range of field devices such as valves, relays, and lamps.
Easy Integration
Fully compatible with ABB 800xA and S800 I/O series.
Communicates with upper-level controllers via PROFIBUS DP or PROFINET, ideal for DCS and PLC systems.
Modular Design and Maintainability
DIN-rail mountable and hot-swappable for quick field replacement and maintenance.
Each channel includes an LED indicator for real-time status monitoring.
Typical Industries
Chemicals, Oil & Energy: Control of valves, pumps, and alarm systems.
Manufacturing & Machinery: Machine axis drives, packaging line control.
Water Treatment & Food & Beverage: Switching control for fluid valves and metering devices.
Building Automation: Discrete control of lighting, HVAC, and security systems.
