ABB DO820 Digital Output Relay Module
Description
ABB DO820 Digital Output Relay Module is a high-performance digital output module belonging to ABB’s industrial automation control system component series. It serves as a key bridge between control systems and field actuators, receiving digital commands from PLCs or other control systems and converting them into signals to drive external execution devices.
| Specification | Value |
|---|---|
| Operating Power Supply | 24V DC, ±10% voltage tolerance |
| Output Channels | 16 digital output channels |
| Output Signal Type | Relay output or transistor output (varies by model) |
| Output Voltage Range | Relay: AC 250V or DC 30V; Transistor: DC 24V |
| Response Time | Relay: approximately 10ms; Transistor: approximately 1ms |
| Rated Load Voltage | AC 230V / DC 24V |
| Maximum Output Current per Channel | 2A |
| Mounting Method | DIN rail or rack mounting |
Key Features:
- 16 digital output channels with high load capacity per channel
- Relay isolation for enhanced electrical safety
- Modular design compatible with ABB S800 I/O series for easy integration
- LED status indicators for convenient diagnosis and maintenance
- Stable performance and reliable operation suitable for harsh industrial environments
Applications:
- Process control in factory automation and industrial control systems
- Power systems for controlling circuit breakers, relays, and alarm systems
- Building automation for controlling lighting, air conditioning, and other building systems
- Industrial production processes for precise control of equipment start/stop and valve open/close actions
Related Models:
- ABB DO801
- ABB DO810
- ABB DP820