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Product Overview
The supplied part reference appears to contain a model-number mismatch. ABB documentation identifies 3BHE009319R0001 as UNS 2881 B-P V1, not UNS2880B-P,V1. ABB lists this part in the UNITROL 5000 spare-parts family as a Measuring Unit Board, while the related UNS 2880 B-P V2 is separately identified as a Control Board.
The board is part of the measurement and control architecture used in ABB UNITROL 5000 excitation systems. Its role is associated with acquiring and processing electrical operating signals required by the excitation system, supporting accurate monitoring and control functions. ABB’s product data specifies the assembly as a completed MUB PCB, with a net width of 255 mm, height of 28 mm, length of 31 mm, and net weight of 0.59 kg.
For maintenance procurement, this distinction matters. A control board and a measuring unit board are not interchangeable simply because their UNS designations are similar. Personally, I would verify the PCB identification label and installed UNITROL configuration before issuing this spare.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | UNS 2881 B-P V1 |
| Ordering Number | 3BHE009319R0001 |
| Manufacturer | ABB |
| Product Family | UNITROL 5000 |
| Product Type | MUB Measuring Unit Board / Completed PCB |
| Primary Function | Measurement signal acquisition and processing |
| Power | System-dependent |
| Communication / Protocol | UNITROL 5000 internal system architecture |
| Operating Temperature | System/application dependent |
| Mounting | UNITROL 5000 excitation-system assembly |
| Dimensions (HxWxD) | 28 × 255 × 31 mm, ABB product data |
| Weight | 0.59 kg net |
| Typical Interfaces | Board-level system and measurement connections |
| Country of Origin | Switzerland |
| Customs Tariff Number | 85371092 |
The physical specifications above are taken from an ABB product-data copy linked to ABB’s product identifier. ABB also classifies the item as a stocked, piece-level spare rather than a made-to-order product.
ABB UNS2881B-P,V1 3BHE009319R0001
Key Features and Benefits
- Designed for ABB UNITROL 5000 excitation-system applications.
- Functions as a Measuring Unit Board within the MUB architecture.
- Supports acquisition and processing of measurement signals used by the excitation system.
- Compact PCB construction suits cabinet-level power-generation equipment.
- Suitable for planned maintenance and critical-spare inventories.
- Exact hardware identification helps avoid substitution errors between controller, measurement, and interface boards.
- Appropriate for refurbishment, replacement, and lifecycle support of established UNITROL installations.
A particularly useful procurement detail is the distinction between the MUB and COB boards. ABB’s own spare-parts documentation lists 3BHE009319R0001 as the UNS 2881 B-P V1 Measuring Unit Board, while the UNS 2880 B-P family is separately assigned to Control Board functions.
Related Models
UNS 2880 B-P V2: UNITROL 5000 Control Board used for primary control functions. It is a different board type and should not be treated as a direct substitute.
UNS 2882 A-P V1: Extended gate controller associated with the same UNITROL 5000 spare-parts family. Its role is within gate-control functions rather than measurement processing.
UNS 0880 A-P V1: Converter interface board used within UNITROL 5000 excitation equipment. It provides a different electrical interface function.
UNS 0881 A-P V1: Gate Driver Interface board for UNITROL 5000 converter systems. It should be sourced according to the exact converter configuration.
Installation and Maintenance
Before installation, compare the replacement PCB with the removed board, including identification label, revision, connector arrangement, and physical mounting points. Record existing wiring and configuration before disconnection. ESD controls should be used whenever the board is removed from its protective packaging or handled outside the cabinet.
After installation, perform the checks specified for the applicable UNITROL system. Confirm correct measurement feedback, controller diagnostics, excitation-system status, and alarm indications before returning the generator to normal operation. Do not energize a newly installed board solely on the assumption that the part number is similar to another UNS assembly.
For warehouse storage, retain the original identification label, use ESD-safe packaging, and protect the PCB from humidity, dust, shock, and unnecessary connector handling.
Product Warranty
Warranty conditions depend on the supplier and whether the unit is new, refurbished, or previously used. Procurement records should identify the exact ordering number, hardware condition, inspection status, and warranty period.
For 3BHE009319R0001, the correct identification is UNS 2881 B-P V1 MUB Measuring Unit Board. Confirming this distinction before shipment or installation can prevent an incorrect-board replacement on a critical excitation system.
