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ABB DO840 3BSE020838R1 | 16-CH Redundant Output Unit

Brand/Manufacturer: ABB

Order Number: DO840 3BSE020838R1

Type: Digital Output Modules

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

Product Description

High-Availability Digital Output for S800 I/O Systems

The ABB DO840 (Part Number 3BSE020838R1) is a high-performance digital output module designed for the S800 I/O system, commonly used with AC 800M controllers. This module features 16 isolated channels, organized into two groups of eight. It is specifically engineered for applications requiring high reliability, supporting both single and redundant configurations. When paired with the 3BSE020850R1 base, it provides a robust interface for driving 24 VDC field devices such as solenoids, relays, and indicators in complex process environments.

Advanced Diagnostics and Group Isolation

Precision and safety are at the core of the DO840 design. The module includes advanced on-board diagnostics capable of detecting external faults, ensuring rapid troubleshooting and minimal downtime. Each channel provides up to 500 mA of current, with galvanic isolation between the two groups of 8 channels and the system backplane. This isolation prevents electrical noise from propagating through the system, protecting the central controller. The module's hardware is rated for continuous operation in demanding industries, from power generation to petrochemical refining.

Detailed Technical Specifications

Feature Specification Details
Manufacturer ABB
Model Number DO840
Part Number 3BSE020838R1 (Module) / 3BSE020850R1 (Base)
Product Type Digital Output Module (I-O_Module)
Number of Channels 16 Channels (Isolated in 2 groups of 8)
Output Voltage 24 VDC Nominal
Output Current 0.5 A (500 mA) per channel
Redundancy Supports Single or Redundant configurations
Diagnostics Advanced On-board diagnostics with fault detection
Compatible MTUs TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852
Response Time ≤ 2 ms switching time
Dimensions (HxWxD) 119 mm x 45 mm x 102 mm
Module Net Weight 0.2 kg (Module only) / 0.25 kg (with assembly)
Operating Temp 0 °C to +55 °C

 

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We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

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