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PRODUCT DESCRIPTION
ABB DO840 3BSE020838R1 redundant digital output module
ABB DO840 (3BSE020838R1) is an S800 digital output module with sixteen 24 V DC current-sourcing channels rated at 0.5 A. The channels are divided into two isolated groups with process-voltage supervision and output status indication.
The module supports single or redundant applications and includes short-circuit current limiting, over-temperature protection, advanced diagnostics and Output Set as Predetermined behavior after error detection. Verify the compatible MTU, field supply, channel wiring and redundancy configuration before commissioning.
The module supports single or redundant applications and includes short-circuit current limiting, over-temperature protection, advanced diagnostics and Output Set as Predetermined behavior after error detection. Verify the compatible MTU, field supply, channel wiring and redundancy configuration before commissioning.
BEFORE YOU BUY
Confirm the complete DO840 configuration
ACTUAL APPLICATIONS
Application fields for DO840
DO840 provides supervised 24 V DC digital outputs for S800 I/O control architectures. These application areas follow ABB’s documented channel grouping, protection, redundancy and diagnostic functions.
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01 · DISCRETE CONTROL
Drive supervised 24 V DC field loads
Sixteen current-sourcing outputs0.5 A maximum per channel -
02 · REDUNDANT I/O
High-availability digital output paths
Single or redundant operationTwo isolated channel groups -
03 · PROTECTED OUTPUTS
Diagnose and protect output circuits
Short-circuit current limitingOver-temperature and supply supervision
Technical specifications for DO840
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Product ModelDO840
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Spare Model3BSE020838R1
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Product ParametersRedundant 16-channel digital output
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Estimated Shipping Size4.5x10.5x12cm
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ManufacturerABB
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Weight0.16 kg
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Article number3BSE020838R1
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Module typeDigital output
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Number of channels16
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Output typeCurrent sourcing
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Nominal voltage24 V DC
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Operating range19.2–32 V DC
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Output current0.5 A per channel
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Channel grouping2 isolated groups of 8
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RedundancySingle or redundant
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DiagnosticsAdvanced onboard diagnostics
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Output Set as PredeterminedSupported
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ProtectionCurrent limited and overtemperature protected
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Field cable lengthMaximum 600 m
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Rated insulation voltage50 V
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Keying codeCE
View all additional
Alternative Names
3BSE020838R1
DO840 Digital Output 16 ch 24 V DC
S800 16-channel digital output module
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
S800 I/O DIGITAL OUTPUT
Integrate DO840 with verified field power and MTU
ABB DO840 is a sixteen-channel S800 digital output module for 24 V DC current-sourcing loads. Its outputs are arranged in two isolated groups of eight channels.
The module must be matched to a compatible S800 MTU, the 19.2–32 V DC process supply, field wiring, load current and controller channel configuration. It supports single or redundant operation.
Commissioning should verify process-voltage supervision, channel status indication, OSP behavior, output loading and redundancy status. Each channel is current limited and protected against over-temperature conditions.
Features:
- Sixteen 24 V DC current-sourcing outputs
- Two isolated groups with supply supervision
- Compatible MTU and field load must be verified
The ABB DO840 / 3BSE020838R1 S800 I/O module should be matched to the compatible MTU, field wiring and controller configuration before system integration and commissioning.
INTERCHANGEABILITY
Match DO840 field power and output configuration
Replace DO840 only after confirming article number 3BSE020838R1 and the installed S800 I/O configuration. Similar digital output modules can differ in voltage range, current rating, signal type or redundancy.
Verify the compatible MTU, keying code CE, 24 V DC field supply, channel assignments, load current, OSP settings and redundancy pairing. Record the original wiring before removal.
After installation, confirm process-voltage supervision, output status LEDs, channel diagnostics, load operation and failover behavior where redundancy is used. Do not assume another S800 digital output module is a direct substitute.
Features:
- Match article number 3BSE020838R1
- Confirm MTU, field supply and keying
- Test outputs, diagnostics and redundancy
The ABB DO840 / 3BSE020838R1 S800 I/O module requires replacement verification based on the complete article number, MTU, wiring and controller configuration before commissioning.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.Features:
- ABB product data is matched to article number 3BSE020838R1
- Compatible MTU and controller configuration must be verified
- Accessories and documents are supplied only when listed
Documentation for the ABB DO840 / 3BSE020838R1 S800 I/O module must be matched to the complete article number and installed configuration; confirm manual availability in the written quotation.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed sizeConfirm with quotation
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Shipping weightConfirm with quotation
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS referenceConfirm by buyer
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OriginConfirm from product label
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about DO840
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What type of outputs does DO840 provide?
DO840 provides sixteen current-sourcing 24 V DC digital outputs in two isolated groups of eight. -
What output current does DO840 support?
ABB specifies up to 0.5 A per output channel within the documented operating conditions. -
Can DO840 be used redundantly?
Yes. ABB documents DO840 for single or redundant applications. -
Which protection functions are included?
The outputs are current limited and protected against overtemperature, with onboard diagnostics. -
Does DO840 support Output Set as Predetermined?
Yes. ABB documents Output Set as Predetermined support for DO840. -
What must be checked before replacing DO840?
Match article number 3BSE020838R1, MTU, keying code CE, field wiring, load current, process voltage and redundancy configuration.
READY TO VERIFY YOUR PART?
Get a DO840 quote with price, lead time and revision check.
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Product
Product Browsing History
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