Description
Product Overview
The ABB UAA326A02 HIEE300024R2 is identified in industrial spare-parts listings as an ABB electronic control or interface board. However, the available descriptions do not establish a consistent, manufacturer-verified functional specification. Some suppliers associate this part with ABB drive and excitation-system hardware, while others describe it more generally as a control or interface module. These descriptions are not sufficient to confirm its precise role, electrical ratings, or supported equipment variants.
For maintenance teams working with legacy ABB equipment, correct identification is more important than a broad product-category match. The UAA326A02 designation and HIEE300024R2 reference should be checked against the installed board’s labels, revision markings, connector arrangement, and the host equipment’s parts documentation. Do not assume that a board is interchangeable simply because a supplier lists it for a related drive family or excitation system. An incorrect control board can create commissioning delays or prevent equipment from returning to service.
Before purchasing the ABB UAA326A02, confirm the original part number and revision, the host drive or excitation-system model, and any applicable hardware or firmware dependencies. For replacement stock, request clear photographs of the actual unit and agree on the inspection scope before shipment. If the part is supplied as used or refurbished, obtain a written condition statement and ask what functional checks were performed. These checks help distinguish a suitable maintenance spare from a visually similar board whose compatibility remains unverified.
Product Introduction
The ABB UAA326A02 is best approached as an equipment-specific electronic spare rather than a universal PLC or digital I/O module. Its exact function should be established from the original ABB documentation or the installed assembly’s bill of materials. The available evidence does not reliably confirm a channel count, communication protocol, rated supply voltage, or detailed interface specification.
During replacement planning, document the existing board’s complete designation, revision suffix, connector positions, and any attached configuration information. Follow the equipment manufacturer’s isolation and discharge procedures before removing a board, particularly in drive and power-conversion cabinets. Installation should be performed by qualified personnel using appropriate electrostatic-discharge precautions and the site’s approved commissioning procedure.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | UAA326A02 |
| Associated part number | HIEE300024R2 |
| Product type | Electronic control/interface board; exact designation unverified |
| Host equipment | ABB drive or excitation-system applications are reported by suppliers; exact compatibility unconfirmed |
| Rated supply voltage | Not verified |
| Power consumption | Not verified |
| I/O channel count | Not verified |
| Communication interface | Not verified |
| Operating temperature | Not verified |
| Mounting method | Confirm from the original assembly and host equipment |
| Dimensions and weight | Not verified |
| Hardware revision | Verify the complete label on the supplied unit |
The listed technical details should not be treated as a substitute for the applicable ABB manual or equipment-specific parts list. Supplier pages provide inconsistent descriptions, and a manufacturer datasheet confirming the full specification was not located in the available search results.

UAA326A02
Related Products
The following ABB part numbers appear in listings discussing related drive or excitation-system equipment. They are reference points for compatibility research, not confirmed replacements:
- UAC318AE / HIEE300744R1 — listed among related ABB control-system boards.
- UAC326AE01 / HIEE401481R1 — another listed ABB board designation.
- UAC389AE01 / HIEE300888R0001 — related part reference appearing in the same supplier listing.
- UAC389AE02 / HIEE300888R0002 — another listed variant; interchangeability is not established.
Frequently Asked Questions
Q1: What is the ABB UAA326A02?
It is identified by suppliers as an ABB electronic control or interface board. Its precise OEM function needs confirmation against the original equipment documentation.
Q2: Is HIEE300024R2 the same part as ?
Supplier listings associate the two designations. Verify both markings on the actual unit and cross-check them against the equipment parts list before purchasing.
Q3: Which ABB drive systems support this board?
Some supplier descriptions associate it with ABB drive and excitation applications, but an exact supported-model list has not been verified. Confirm the host equipment model and serial number with the applicable parts documentation.
Q4: Can it replace another UAA-series board?
Not on the basis of the series prefix alone. Board revisions, connectors, control functions, and equipment-specific configuration may differ.
Q5: What electrical specifications should be checked?
Confirm the rated supply, power consumption, signal interfaces, connector pinout, and any required firmware or configuration dependencies using the OEM documentation. Do not rely on generic supplier specifications.
Q6: What should I request when buying a used or refurbished unit?
Request actual-unit photographs, a readable part-number and revision label, a written condition statement, and test results that identify the equipment or test setup used. Visual inspection alone does not demonstrate functional compatibility.
Q7: What information helps confirm the correct replacement?
Provide the complete part number and revision from the existing board, the ABB equipment model and serial number, and photographs of the board label and connectors. This information makes a compatibility check more reliable.
Procurement Recommendation
Treat the ABB HIEE300024R2 as a part requiring technical verification before order placement. The most important step is to establish its exact function and approved host equipment, rather than relying on broad descriptions such as “controller,” “I/O module,” or “interface board.”
For a replacement purchase, request confirmation of the complete part number, revision, physical condition, test scope, warranty terms, and shipment lead time in writing. If the board is intended for a critical drive or excitation system, have the equipment engineer or ABB service provider validate compatibility before installation.
