Description
Product Overview
The ABB UAC326AE HIEE401481R0001 is associated with ABB excitation-system hardware used in generator and synchronous-motor applications. In these installations, excitation control regulates field excitation to help maintain generator terminal voltage and manage reactive-power behavior. The UAC326AE is identified in supplier references as an interface/control component for excitation systems, including legacy power-generation equipment.
For plant engineers, the distinction between a controller, an interface board, and an I/O card is important. Listings for this model are inconsistent: some describe it as an excitation-system interface or control module, while others label it an analog/digital I/O card. The available evidence does not reliably establish a universal channel count, communication protocol, or complete electrical specification for every version. Buyers should therefore use the exact nameplate, equipment drawings, and applicable system manual to determine its installed role.
When sourcing the ABB UAC326AE HIEE401481R0001, verify the complete order number, revision markings, connector arrangement, and the excitation-system model in which it operates. For a replacement, check signal wiring and the original configuration before removing the existing unit. If the module is part of a turbine-generator excitation system, an incorrect substitution can affect commissioning and system availability. Request actual-unit photographs and documented functional-test results, especially for used or refurbished stock. Do not accept generic claims about firmware, redundancy, hot swapping, or protection functions unless they are supported by documentation for the exact hardware.
Product Introduction
The ABB UAC326AE HIEE401481R0001 is associated with excitation-system equipment for power-generation applications. Its exact board function should be checked against the installed system documentation because published descriptions do not consistently distinguish interface and I/O roles.
For replacement planning, verify the original part label, wiring references, and hardware revision. These checks are particularly important when maintaining legacy generator or turbine excitation equipment.
Key Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | UAC326AE |
| Commonly associated order number | HIEE401481R0001 |
| Product family | Excitation-system hardware |
| Typical application | Generator and synchronous-motor excitation systems |
| Specific board function | Verify against installed system documentation |
| Supply voltage | Requires confirmation from the applicable manual |
| Analog/digital channel count | Conflicting third-party descriptions; not confirmed |
| Communication protocol | Not reliably verified for this exact unit |
| Operating temperature | Not verified |
| Mounting / connection method | Confirm from hardware drawings |
| Firmware or configuration requirements | Confirm for the installed excitation system |
| Condition | Confirm from supplier; request test evidence |
Specification caution: Some third-party listings provide numerical ratings and channel counts, but those claims are inconsistent. They should not be treated as verified ABB specifications without a matching technical manual.
UAC326AE
Related Products
These are related excitation-system components or model references, not confirmed drop-in replacements.
- ABB UAA326A02 — HIEE300024R2: Listed alongside UAC326AE in supplier references; verify its function and system compatibility before considering substitution.
- ABB UAC317AEV1 — HIEE300725R1: Another listed control-system component; compatibility with is unconfirmed.
- ABB UAC318AE — HIEE300744R1: Related model designation in supplier listings, but not a verified equivalent.
- ABB UAC346AE01 — HIEE300831R0001: A separate UAC-series component; verify its application and interface requirements.
Frequently Asked Questions
Q1. What is the ABB used for?
It is associated with ABB excitation-system hardware used in generator and synchronous-motor applications. Confirm the precise interface or control function from the installed system documentation.
Q2. Is HIEE401481R0001 the order number for ?
Yes, this combination appears consistently in multiple supplier references. Match it against the physical nameplate before purchasing.
Q3. Is an analog/digital I/O card or an excitation interface module?
Published listings use both descriptions. The precise role should be determined from the hardware documentation and the board’s position in the installed system; generic channel specifications are not sufficiently consistent to rely on.
Q4. Can it be replaced with another UAC-series module?
Not based on the series name alone. Verify the approved replacement, hardware revision, connectors, signal functions, and system configuration.
Q5. Can the module be hot-swapped?
Hot-swap capability has not been confirmed for this exact part. Follow the excitation-system manual and site safety procedures before removing or installing hardware.
Q6. What should be checked when buying a used or refurbished unit?
Confirm the full part number and revision, inspect connectors and the circuit board, and request functional-test records. Establish whether the unit is tested, refurbished, or supplied as untested surplus.
Q7. Does replacing require recommissioning?
The required procedure depends on its actual role and the host excitation system. Review the original configuration, wiring, and commissioning instructions before returning the equipment to service.
