PRODUCT INFORMATION
Product Overview
The ABB DO840 3BSE020838R1 is a digital output module for the S800 I/O system. This unit provides 16 current-sourcing digital output channels operating at a nominal 24 V d.c. rating. Outputs deliver up to 0.5 A continuous current across a 19.2 to 32 V d.c. span. The sixteen channels are split into two isolated groups containing eight channels each.
Each output channel contains a current-limited high-side driver with built-in thermal protection. Channels also incorporate inductive load suppression, optical isolation barriers, and status indicator LEDs. Both channel groups include dedicated process voltage supervision inputs to detect power faults. The module supports output redundancy configurations when combined with compatible module termination units.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Signal specification | 24 V d.c. (19.2 - 32 V d.c.), 0.5 A |
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| Number of channels | 16 |
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| Signal type | Current sourcing, current limiting |
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| HART | No |
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| SOE | No |
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| Redundancy | Yes |
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| High integrity | No |
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| Intrinsic safety | No |
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| Mechanics | S800 |
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| Isolation | Groupwise isolated from ground |
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| Current limiting | Short circuit proof current limited output |
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| Maximum field cable length | 600 meters (656 yards) |
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| Rated insulation voltage | 50 V |
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| Dielectric test voltage | 500 V a.c. |
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| Power dissipation | Typ. 4.3 W |
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| Current consumption +5 V Modulebus | 130 mA |
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| Current consumption +24 V Modulebus | 0 |
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| Current consumption +24 V external | 200 mA |
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| Front LED’s | F(ault), R(un), W(arning), O(SP), Channel 1-16 Status |
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| Supervision | Process power 1 per group |
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| Status indication of supervision | Module Error, Module Warning, Channel error |
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| CE mark | Yes |
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| Electrical safety | EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201 |
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| Hazardous Location | C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 |
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| Marine certification | ABS, DNV, CCS |
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| Temperature, Operating | 0 to +55 °C (+32 to +131 °F), approvals are issued for +5 to +55 °C |
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| Temperature, Storage | -40 to +70 °C (-40 to +158 °F) |
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| Pollution degree | Degree 2, IEC 60664-1 |
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| Corrosion protection | ISA-S71.04: G3 |
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| Relative humidity | 5 to 95 %, non-condensing |
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| Max ambient temperature | 55 °C (131 °F), for vertical mounting in compact MTU 40 °C (104 °F) |
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| Protection class | IP20 according to IEC 60529 |
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| EMC | EN 61000-6-4, EN 61000-6-2 |
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| Overvoltage categories | IEC/EN 60664-1, EN 50178 |
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| RoHS compliance | EU RoHS, UAE RoHS, CN RoHS |
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| WEEE compliance | DIRECTIVE/2012/19/EU |
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| Use with MTU | TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852 |
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| Keying code | CE |
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| Width | 45 mm |
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| Depth | 102 mm, 111 mm including connector |
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| Height | 119 mm |
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| Weight | 0.15 kg |
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TECHNICAL INFORMATION
Features
- Provides 16 current-sourcing digital output channels rated at 0.5 A continuous load.
- Includes short-circuit proof current limiting and thermal protection per channel.
- Configured with two channel groups, each having an independent process voltage supervision input.
- Supports redundant module operation for high-availability process control requirements.
- Equipped with front diagnostic LEDs showing run, fault, warning, OSP, and individual channel states.
- Features optical isolation barriers and built-in inductive load suppression on every output.
TECHNICAL INFORMATION
Applications
- Switching 24 V d.c. solenoid valves and actuator coils in industrial process environments.
- Driving pilot lights, visual indicators, and auxiliary alarm relays in automation enclosures.
- Providing redundant output control paths across S800 I/O distributed process control architectures.
TECHNICAL INFORMATION
Connections / Interfaces
- Mounts onto TU810, TU812, TU814, TU830, TU833, TU842, TU843, or TU852 termination units.
- Connects to Modulebus backplanes using a dedicated mechanical keying code CE.
- Requires external 24 V d.c. process power supplying up to 200 mA current consumption.
- Supports field cable runs reaching maximum installation lengths of 600 meters.
TECHNICAL INFORMATION
Installation Guidelines
- Mount vertically or horizontally on compatible S800 Module Termination Units.
- Derate maximum ambient operating temperature to 40 °C when mounting vertically in compact MTU housings.
- Maintain ambient operating temperatures between 0 °C and 55 °C in standard mounting orientations.
- Install within IP20 compliant industrial enclosures satisfying Pollution Degree 2 environmental conditions.
TECHNICAL INFORMATION
Compatibility
- Compatible with ABB S800 I/O communication interfaces via Modulebus backplane connections.
- Mounts directly onto MTU models TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852.
- Supports redundant output pairs when seated on redundant MTU bases like TU842 and TU843.
TECHNICAL INFORMATION
Compliance and Certifications
- CE Mark certified under EN 61000-6-4 and EN 61000-6-2 EMC directives.
- Electrical safety compliant with EN 61010-1 and UL 61010-1 standards.
- Hazardous location rated for Class 1 Division 2, Class 1 Zone 2, and ATEX Zone 2.
- Marine certified by ABS, DNV, and CCS classification societies.
- Complies with ISA-S71.04 Class G3 harsh environmental corrosion protection standards.
- Conforms to EU RoHS, UAE RoHS, CN RoHS, and WEEE directives.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with ABB S800 I/O communication interfaces via Modulebus backplane connections. Mounts directly onto MTU models TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852. Supports redundant output pairs when seated on redundant MTU bases like TU842 and TU843.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the typical market price for the ABB DO840 3BSE020838R1 module?
Market reference prices typically range from $289.00 to $529.00 depending on condition. These figures are indicative market reference pricing only and are not a final quotation. Final quotes vary based on component availability, testing requirements, and delivery terms.
Does the ABB DO840 support output redundancy?
Yes, the DO840 supports output redundancy when paired with compatible module termination units. Redundant configurations use dual modules mounted on MTUs such as the TU842 or TU843.
Which module termination units are compatible with the DO840 module?
The DO840 is compatible with TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852 MTUs. Proper insertion is guided by the dedicated mechanical keying code CE.
What are the output channel current and protection ratings?
Each channel delivers up to 0.5 A continuous current at 24 V d.c. Every channel includes short-circuit current limiting and built-in thermal overload protection.
