ABB DO820 3BSE008514R1 S800 I/O 8-Channel Relay Output Module

Description

The DO820 3BSE008514R1 is an 8-channel relay output module with Form A contacts, each rated for 3 A. It provides full galvanic isolation between channels and system logic, mounts on an MTU for DIN-rail installation, and supports hot-swapping for maintenance without interrupting the I/O station.

Specifications

• Manufacturer: ABB

• Country of Origin: Switzerland

• Model Number: DO820 (3BSE008514R1)

• Product Type: Relay Output Module

• Number of Channels: 8 (Individually Isolated)

• Contact Type: Form A (Normally Open)

• Max. Switching Voltage: 250 V AC / 125 V DC

• Max. Continuous Current: 3.0 A per channel

• Isolation: 2500 V galvanic isolation per channel

• Communication: ModuleBus

• Power Supply: 24 V DC (Internal via ModuleBus)

• Weight: 0.35 kg

Features

• High-Capacity Relay Switching: Supports up to 3A per channel, allowing for direct control of high-power field actuators without external interposing relays.

• Universal Load Compatibility: Capable of switching a wide range of voltages up to 250V AC, making it ideal for diverse utility and manufacturing sectors.

• Per-Channel Galvanic Isolation: Individual isolation for every relay ensures maximum protection against transients and eliminates ground loop interference.

• Serviceability and Uptime: Fully supports hot-swap functionality, allowing the module to be replaced under power to maintain continuous system availability.

• Reliable Mechanical Contacts: Features high-quality relay components designed for long mechanical and electrical life cycles in heavy-duty applications.

• Integrated Hardware Diagnostics: Front-panel LED indicators provide real-time visual status for each output state and the overall integrity of the module hardware.