Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Type Designation | UAC326AE / UAC326AE01 |
| ABB Article Number | HIEE401481R0001 |
| Product Type | Combined analog and digital I/O board |
| System Family | ABB UNITROL excitation systems |
| Functional Role | Interfaces field signals to the UNITROL controller |
| Typical Application | Power generation excitation control |
4. Product Introduction (Anti-Template)
The ABB UAC326AE (also referenced as UAC326AE01, article number HIEE401481R0001) is a combined analog and digital I/O board used in ABB UNITROL excitation systems. It provides the interface between documented field signals and the excitation controller.
The board is specific to the UNITROL platform and is intended only for installations where the engineering documentation specifies this exact type designation and article number. Because excitation system I/O boards are tightly integrated with the controller hardware, firmware, and field wiring, the complete article number, revision, and system configuration must be verified before replacement. Units are primarily sourced as spares for existing UNITROL installations in power generation applications.

UAC326AE

UAC326AE

UAC326AE

UAC326AE

UAC326AE
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full type designation (UAC326AE / UAC326AE01) and article number (HIEE401481R0001), revision markings, and connector condition. Photograph all labels.
- Functional Testing – Limited standalone testing is possible; full validation requires installation in the compatible UNITROL system and verification of analog and digital signal paths.
- QA & Packaging – Protect connectors and the circuit board, clean according to electronics handling practices, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial control / excitation system boards. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
System-Specific Design – This board is intended only for documented UNITROL excitation system installations. It is not a general-purpose I/O module.
Exact Article Matching – Always confirm the full ABB article number (HIEE401481R0001) and any revision suffixes. Similar-looking boards may not be interchangeable.
Field Signal Compatibility – Verify that the connected analog and digital field signals match the board’s documented input/output ratings and wiring.
ESD and Handling – Observe strict electrostatic discharge precautions when handling the board.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified UAC326AE?
As a specialized UNITROL I/O board, availability depends on surplus stock. Typical lead time after verification is 5–20 business days plus specialized shipping.
What is the primary function of this board?
It is a combined analog and digital I/O board that interfaces field signals to the controller in ABB UNITROL excitation systems.
What is the ABB article number?
HIEE401481R0001.
What system is it used with?
ABB UNITROL excitation systems.
Is the board still in production?
UNITROL hardware is a mature platform. Availability of specific boards depends on current spare-parts status; many units are sourced as surplus for existing installations.
What should be confirmed before ordering a replacement?
Exact type designation (UAC326AE / UAC326AE01), full article number (HIEE401481R0001), revision level, and compatibility with the specific UNITROL system and field wiring.
