DO820 3BSE008514R1 ABB 8-channel 230 V AC/DC Relay Output Module
IP20 3A
1. Product Overview
The ABB DO820 (Part Number: 3BSE008514R1) is a classic digital
output module in the ABB S800 I/O family. It features 8
relay-isolated outputs, with a rated current of 3A per channel.
Compatible with a wide range of loads (AC 24–230V and DC 24–110V),
it can directly drive field devices such as solenoid valves,
contactors, alarms, and motor starters, providing a highly reliable
and easy-to-maintain solution for switching control in process
automation, power automation, and intelligent manufacturing
applications.
2. Key Features
- High Isolation: Each channel features independent relay isolation
with a withstand voltage of ≥2 kV, effectively preventing ground
loops and surge interference.
- Millisecond Response Time: Typical operating time < 8 ms,
meeting the requirements for high-speed sequential control and
fault interlocking.
- Wide Temperature and Voltage Range: Industrial-grade temperature
range of -40…+70 °C; 12…48 VDC redundant power supply; suitable for
long-term operation in harsh environments such as offshore
platforms and desert power plants.
- Tool-less Installation: Standard 35 mm DIN rail mounting;
supports hot-swapping; built-in LED channel indicators and group
diagnostics; replacement in 10 seconds, minimizing downtime.
- Open Protocol: Seamless integration with AC 800M, AC500, and
third-party PLC/DCS via PROFIBUS-DP/V1, DeviceNet, or Modbus-TCP,
reducing spare parts and training costs.
3. Technical Specifications
- Output Channels: 8 × Relay (Normally Open Contacts)
- Contact Rating: 3 A / 250 VAC, 3 A / 30 VDC (resistive load)
- Minimum Load: 1 mA / 5 V
- Isolation Voltage: Channel-Bus 2 kVrms; Channel-Channel 1 kVrms
- Response Time: ≤ 8 ms (energize), ≤ 5 ms (de-energize)
- Power Consumption: ≤ 1.5 W (no load)
- Protection Level: IP20 (IEC) (IEC 60529)
- Dimensions/Weight: 102 × 119 × 45 mm, approx. 0.3 kg
- Certifications: CE, UL, cUL, ATEX Zone 2, IECEx, RoHS
4. Typical Applications
- Process Industry: Chemical reactor valve control, pharmaceutical
sterilization cabinet interlocking, water treatment pump/valve
control
- Power & Energy: Substation circuit breaker operation, UPS unit
switching, photovoltaic combiner box control
- Discrete Manufacturing: Automotive welding line fixtures, machine
tool cooling pumps, on/off control of heating elements in packaging
machines
- Infrastructure: Precision air conditioning for data centers,
airport baggage conveyor systems, building lighting and fire
protection dampers
5. Compatibility and Integration
- Directly plugs into ABB S800 I/O rack; supports PROFIBUS or
Ethernet communication via interface modules such as CI830/CI867
- Supports unified configuration with ABB Compact Product Suite,
800xA, Symphony Plus, and Freelance DCS; channel-level diagnostic
information can be uploaded to asset management systems for
predictive maintenance
Product details pictures
Related products
| DO821 3BSE013250R1 | DO822 3BSE013251R1 |
| DO820 3BSE008514R1 | DO828 3BSE013258R1 |
| DO829 3BSE013260R1 | DO828P 3BSE013259R1 |
| DO831 3BSE013262R1 | DO830 3BSE013261R1 |
| DO840 3BSE013264R1 | DO832 3BSE013263R1 |
| DO843 3BSE013266R1 | DO842 3BSE013265R1 |
| DO845 3BSE013268R1 | DO844 3BSE013267R1 |
| DO847 3BSE013270R1 | DO846 3BSE013269R1 |
| DO848 3BSE013271R1 | DO849 3BSE013272R1 |
| DO851 3BSE013274R1 | DO850 3BSE013273R1 |
