The 3BSE020838R1 (DO840) is a high-reliability digital output module within ABB’s S800 I/O system, designed for industrial automation and process control applications. It provides 16 channel 24V DC transistor outputs with advanced diagnostics and flexible redundancy options.
The module is engineered for demanding control environments where stable switching performance, channel isolation, and system diagnostics are critical. It is widely used in ABB 800xA and Compact Product Suite architectures to drive actuators, solenoids, and interlocking systems in continuous industrial operations.
The DO840 is designed with a focus on channel isolation, modular redundancy, and diagnostic transparency:
| Product ID | 3BSE020838R1 |
| ABB Type | DO840 |
| Product Type | Digital Output Module |
| Output Channels | 16 (2 isolated groups) |
| Channel Type | 24V DC Digital Output |
| Output Current | 0.5 A per channel |
| Power Isolation | Group Isolated (2 × 8 channels) |
| Dimensions | 102 × 119 × 45 mm |
| Net Weight | 0.2 kg |
| RoHS Compliance | Compliant (EU Directive 2011/65/EU) |
Can the DO840 operate in redundant configurations?
Yes. The module supports redundant setup when used with compatible S800 I/O system architecture, ensuring high system availability in critical process control applications.
What type of loads can the outputs drive?
Each channel supports 24V DC loads up to 0.5A, typically used for solenoids, relays, indicators, and small actuator devices in automation systems.
How is diagnostic information provided?
The module includes advanced on-board diagnostics that report channel faults, communication status, and power supply conditions directly to the control system.
MTU Compatibility:
The DO840 must be installed with compatible Module Termination Units (TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852).
Proper MTU selection ensures correct wiring density and system reliability.
Wiring Isolation:
The outputs are divided into two isolated groups. Maintain proper separation to avoid cross-coupling and ensure signal integrity in high-density cabinets.
Thermal Management:
Although the module has low power dissipation, ensure proper cabinet ventilation when multiple I/O modules are installed in close proximity.
System Integration:
When used in 800xA systems, ensure correct I/O configuration in controller software to enable full diagnostic and redundancy features.
Global Express Shipping
Returns & Warranty
Manufacturer: ABB
Product No.: 3BSE020838R1
Country of origin:Sweden
Product Type: Digital Output Module
Barcode: 85389091
Payment: T/T, Western Union
Weight: 200g
Dimensions: 102 × 119 × 45 mm
Shipping port: Xiamen
Warranty: 12 months
The 3BSE020838R1 (DO840) is a high-reliability digital output module within ABB’s S800 I/O system, designed for industrial automation and process control applications. It provides 16 channel 24V DC transistor outputs with advanced diagnostics and flexible redundancy options.
The module is engineered for demanding control environments where stable switching performance, channel isolation, and system diagnostics are critical. It is widely used in ABB 800xA and Compact Product Suite architectures to drive actuators, solenoids, and interlocking systems in continuous industrial operations.
The DO840 is designed with a focus on channel isolation, modular redundancy, and diagnostic transparency:
| Product ID | 3BSE020838R1 |
| ABB Type | DO840 |
| Product Type | Digital Output Module |
| Output Channels | 16 (2 isolated groups) |
| Channel Type | 24V DC Digital Output |
| Output Current | 0.5 A per channel |
| Power Isolation | Group Isolated (2 × 8 channels) |
| Dimensions | 102 × 119 × 45 mm |
| Net Weight | 0.2 kg |
| RoHS Compliance | Compliant (EU Directive 2011/65/EU) |
Can the DO840 operate in redundant configurations?
Yes. The module supports redundant setup when used with compatible S800 I/O system architecture, ensuring high system availability in critical process control applications.
What type of loads can the outputs drive?
Each channel supports 24V DC loads up to 0.5A, typically used for solenoids, relays, indicators, and small actuator devices in automation systems.
How is diagnostic information provided?
The module includes advanced on-board diagnostics that report channel faults, communication status, and power supply conditions directly to the control system.
MTU Compatibility:
The DO840 must be installed with compatible Module Termination Units (TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852).
Proper MTU selection ensures correct wiring density and system reliability.
Wiring Isolation:
The outputs are divided into two isolated groups. Maintain proper separation to avoid cross-coupling and ensure signal integrity in high-density cabinets.
Thermal Management:
Although the module has low power dissipation, ensure proper cabinet ventilation when multiple I/O modules are installed in close proximity.
System Integration:
When used in 800xA systems, ensure correct I/O configuration in controller software to enable full diagnostic and redundancy features.
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
Honeywell CC-TDOD61 51307089-175 Experion Series C 12-inch Redundant Digital Output IOTA | Original New | In Stock | View Details |
|
ABB 3BSE008544R2 AI820-eA S800 I/O Analog Input Module | Original New | In Stock | View Details |
|
ABB 3BSE008546R2 AO820-eA S800 Analog Output Module | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
White
|
| Country of origin |
Sweden
|
| Power source |
DC Power
|
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