Description
ABB’s product record identifies 3BSE018293R1 as the DSAO 120A Analog Output Board, 8 Channels, with the product type listed as an I/O module. It belongs to the S100 I/O family and is used across several ABB control-system architectures.
DSAO120A 3BSE018293R1 sideview
Key Technical Specifications
| Parameter | Value |
|---|---|
| Brand | ABB |
| Model | DSAO 120A |
| Product ID | 3BSE018293R1 |
| Product Type | Analog Output Board |
| I/O Family | S100 I/O |
| Number of Channels | 8 analog output channels |
| Typical System Families | Advant OCS, Advant Controller 450, AC460, MasterPiece 200/200-1, System 800xA |
| Product Depth / Length | 324 mm |
| Product Width | 234 mm |
| Product Height | 27 mm |
| Net Weight | 0.372 kg |
| Country of Origin | Sweden |
| HS Code | 853890 |
| Customs Tariff Number | 85389091 |
| RoHS Status | Exempt from the scope of the referenced RoHS directive |
To learn more about this product click on the file below or download the file:
DSAO120A 3BSE018293R1 Datasheet
ABB’s product data confirms the 8-channel analog output function, S100 I/O classification, dimensions of 324 × 234 × 27 mm, and a net weight of 0.372 kg. The listed customs tariff number is 85389091.
The DSAO 120A is also listed as part of several integration kits, including DSAO 120AK01, which is described as an 8-channel, 12-bit analog-output kit.
DSAO120A 3BSE018293R1 label
Product Introduction (Anti-Template)
When a control loop needs to command a valve, actuator, positioner, or other field device with a continuous signal, the analog output board is the final electrical link between the controller and the process. The ABB DSAO 120A 3BSE018293R1 provides eight analog output channels within the S100 I/O architecture, supporting ABB control systems used in process automation environments.
This is an older S100 I/O component, so compatibility should be checked against the actual controller and I/O configuration rather than the 3BSE number alone. The DSAO 120A appears in Advant OCS, Advant Controller 450, AC460, MasterPiece, and System 800xA-related product categories.
QC, Procurement & Logistics SOP
- Inbound Verification
- Confirm the complete identification: DSAO 120A / 3BSE018293R1.
- Inspect the ABB identification label, PCB, connectors, terminal interfaces, and mounting points.
- Check for corrosion, bent contacts, damaged components, or previous repair work.
- Compare the replacement against the customer’s existing DSAO 120A board.
- Verify the controller and S100 I/O rack configuration before shipment.
- Live Rig Testing
- Use compatible ABB I/O test equipment where available.
- Check module recognition and basic analog-output operation.
- Verify representative output signals using calibrated test equipment.
- Test each available channel rather than assuming one functioning channel proves the entire board is healthy.
- Record the test results against the exact board identification.
- QA & Anti-Static Packaging
- Photograph the part number and serial identification before packing.
- Handle the PCB using ESD precautions.
- Keep the board inside an anti-static bag during storage and transportation.
- Protect the connectors against bending and impact.
- Use rigid cushioning because the board is approximately 324 mm long.
- Global Logistics & Export Compliance
- Prepare the commercial invoice, packing list, product description, country-of-origin information, and appropriate HS classification.
- ABB’s product record lists 85389091 as the customs tariff number; destination-country classification should still be verified by the importer or customs broker.
- Air freight is generally practical for a 0.372 kg electronic spare.
- Use compact ESD and moisture-resistant packaging.
- Describe the item accurately as an ABB I/O analog output board to avoid confusion during customs review.
Technical Pitfalls & Integration Warnings
1. System Compatibility
The DSAO 120A is an I/O module used across several ABB control-system families. A replacement should therefore be checked against the actual installed architecture. ABB lists applications including Advant Controller 450, AC460, MasterPiece 200/200-1, and System 800xA.
2. Output Specification Mismatch
Be careful with generic listings that describe this board using output ranges, resolution, isolation, or other electrical values without identifying the exact ABB documentation source. Some available records give conflicting specifications. For a plant replacement, use the original system documentation and installed configuration as the authority.
3. Wiring / Channel Assignment
Imagine a replacement board being installed with the channel wiring shifted by one position. The board can pass a basic diagnostic test while the wrong control loop receives the output. Verify channel numbering and terminal assignments against the original drawings before commissioning.
4. ESD During Unboxing
The DSAO 120A contains electronic circuitry that should be handled as an ESD-sensitive industrial I/O board. Keep it inside its anti-static packaging until the installation area is prepared. Do not touch connector contacts or exposed PCB areas unnecessarily.
Frequently Asked Questions (FAQ)
Q1: What is the ABB DSAO120A 3BSE018293R1?
It is an 8-channel analog output board belonging to ABB’s I/O family. ABB’s product identification lists its product type as an I/O module and its catalog description as “DSAO 120A Analog Output Board 8 Channels.”
Q2: Which ABB systems use the DSAO 120A?
ABB’s product categories associate the module with several systems, including:
- Advant OCS with Master software
- Advant Controller 450
- AC460
- MasterPiece 200 and 200/1
- System 800xA I/O
- ABB Compact Product Suite
Q3: How many analog outputs does it provide?
The DSAO 120A provides 8 analog output channels.
Q4: What are the physical dimensions and weight?
ABB’s published product information gives approximately 324 mm × 234 mm × 27 mm, with a net weight of 0.372 kg.
Q5: Is DSAO 120A the same as DSAO 120AK01?
No. The DSAO 120A is the analog output board itself, while DSAO 120AK01 is identified as an analog-output kit incorporating the DSAO 120A-related hardware. ABB lists 3BSE020419R1 and 3BUR002096R1 among the associated kit identifiers.
Q6: Can I hot-swap the DSAO 120A?
Do not assume that it is safe to remove the board under power simply because it is an I/O module. The correct procedure depends on the installed I/O architecture and maintenance instructions. Isolate the relevant control-system section unless the system documentation explicitly permits energized replacement.
Q7: What should I provide when ordering a replacement?
For an exact compatibility check, provide:
- DSAO 120A / 3BSE018293R1
- Photograph of the existing board
- Controller model
- I/O rack information
- Existing channel wiring
- Current system or module fault information
- Any visible hardware revision
This is especially useful for older ABB I/O installations where several related modules and kits may look similar.
Q8: What HS code should be used for planning?
ABB’s product information lists HS Code 853890 and Customs Tariff Number 85389091. Final classification should be confirmed against the destination country’s tariff schedule and the actual declared function of the component.
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