Product Type:Digital Output Module
Module Designation:DO821
Power Consumption:≤1.2W
Operating Voltage:DC 24V
Output Current:1A
Number of Outputs:8
Signal Type:Relay Contact
Operating Temperature Range:-25°C to +60°C
Storage Temperature Range:-40°C to +85°C
IP Rating:IP20
Dimensions (D x W x H):89mm x 30mm x 44mm
Weight:0.15kg
The ABB DO821 Digital Output Module is a robust, high-speed digital output solution tailored for industrial automation applications requiring precise control and exceptional reliability.
Featuring advanced circuitry and materials, this module ensures consistent and accurate signal transmission, enabling seamless integration into complex control systems.
Designed with a compact footprint and lightweight construction, the DO821 optimizes space and reduces system complexity, making it ideal for both new installations and retrofit projects.
Supporting a wide range of operating voltages and temperatures, this module operates efficiently across diverse industrial environments, ensuring reliable performance under varying conditions.
Equipped with MODBUS communication protocol and RS485 interface, the ABB DO821 facilitates easy connection and data exchange with other devices in the network, enhancing overall system efficiency.
Comprehensive diagnostics and error reporting capabilities allow for proactive maintenance and quick troubleshooting, minimizing downtime and maximizing operational productivity.

![]()

Looking for reliable industrial automation solutions? Our industrial automation product offers superior performance, competitive pricing, and fast global shipping. Trusted by engineers worldwide for PLC, DCS, and motion control applications.
📦 Fast Delivery | 🔧 Technical Support | 💰 Best Price Guarantee
Contact us today for bulk pricing and availability. We stock major brands including Siemens, Allen-Bradley, ABB, Schneider, Mitsubishi, and more.
🔗 Visit World PLC for more automation products and solutions.
🔗 Explore Weikun Automation for additional industrial control equipment.












There are no reviews yet.