ABB DO840 is an S800 I/O digital output module identified by manufacturer article number 3BSE020838R1. ABB specifies sixteen current-sourcing 24 V DC outputs divided into two isolated groups of eight channels. Each group includes process-voltage supervision, while every channel uses a current-limited, over-temperature-protected high-side driver with output indication and inductive load suppression. The signal range is 19.2 to 32 V DC and the maximum continuous output current is 0.5 A per channel. DO840 supports single or redundant applications with advanced diagnostics. Before replacement, verify the model, article number, termination unit, field wiring, redundancy arrangement and controller configuration.
Condition, availability and warranty are Stockoems commercial information, not ABB manufacturer commitments.
Receive discrete output commands from the configured controller application.
Distribute sixteen channels across two isolated groups of eight.
Apply current-sourcing switching with current and temperature protection.
Drive validated 24 V DC loads in a single or redundant station.
Verify the complete DO840 designation and 3BSE020838R1 article number, installed module termination unit, 24 V DC field voltage, load current, process-voltage supervision, channel allocation, redundancy arrangement and controller configuration before replacement. Confirm the required high-side current-sourcing architecture and 0.5 A channel rating. Similar S800 digital output modules are not automatically interchangeable.
DO840 is an ABB S800 I/O digital output module with manufacturer article number 3BSE020838R1.
ABB specifies sixteen 24 V DC current-sourcing channels divided into two isolated groups of eight.
Yes. ABB documentation identifies DO840 for single or redundant applications.
The official data identifies current limiting, over-temperature protection, process-voltage supervision and advanced diagnostics.
Check the exact model and article number, termination unit, voltage, load current, group wiring, redundancy and controller project.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
Model and suffix verification
Product and label photo confirmation
Condition confirmation
Technical compatibility review
Protective packaging
Worldwide shipping
Shipment tracking
Customs documentation
Written warranty terms
Return authorization process
After-sales response
The workflow combines inspection planning, identity and label verification, technical compatibility review, protective handling, shipment coordination, tracking support, customs-file preparation and documented after-sales communication. Availability and delivery timing are provided only through written commercial communication; no unverified stock quantity or delivery promise is presented.
Choose a supplier that preserves the complete model, states condition clearly, requests label evidence and separates commercial terms from manufacturer specifications.
Request written model identity, article number, quantity, condition, warranty scope, packaging, shipping basis, customs documents and return rules.
Provide installed labels, termination-unit type, channel wiring, redundancy design, controller configuration, software revision and project backup.
Shortened model strings, copied data from similar modules, vague condition wording, unverifiable quantities, missing label evidence and absent return terms require caution.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
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Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
