Description
ABB UAD154A | 3BHE026866R0101 | Industrial Control Board
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Type Designation | UAD154A / UA D154 A |
| Product ID | 3BHE026866R0101 |
| Product Type | Control PCB / electronic board assembly |
| Primary Role | Control and signal processing |
| Application | ABB industrial control / power-control equipment |
| Installation | Equipment-specific board slot |
| Processor | Verify from OEM documentation |
| I/O Configuration | Verify from host-system documentation |
| Communication Interfaces | Verify from host-system documentation |
| Supply Voltage | Verify from equipment documentation |
| Firmware | Match installed hardware revision and firmware |
The exact UAD154A identification is supported by multiple current industrial spare-part references. One source explicitly identifies it as a PCB board and gives the complete UAD154A 3BHE026866R0101 designation.
Product Introduction
The ABB UAD154A is an industrial control-board assembly identified by ABB product number 3BHE026866R0101. It is sold and referenced as a PCB/control board for ABB industrial automation equipment, making it a board-level spare rather than a conventional standalone PLC or DCS I/O module.
For replacement work, the host system is important. Some third-party descriptions claim that the UAD154A provides specific analog and digital I/O channels and an RS-485/Modbus interface, while other sources describe it more generally as a controller/main board. Those detailed specifications are not sufficiently corroborated to publish as definitive OEM data.
UAD154A
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
A failed can cause system-level control, communication, or signal-processing problems that may initially be mistaken for a downstream I/O or power-stage failure. Board-level replacement should therefore begin with identifying the exact ABB equipment in which the board is installed.
Typical Applications
- ABB industrial power-control systems
- ABB drive and converter-related equipment
- Industrial automation control cabinets
- Legacy ABB electronic control assemblies
Technical Pitfalls to Avoid
- Match the complete ABB identification.
Confirm both and 3BHE026866R0101 on the existing board. Similar UAD-series assemblies should not be assumed interchangeable. - Do not rely on unverified I/O specifications.
A current listing claims four analog inputs, two analog outputs, eight digital inputs, and RS-485/Modbus, but these figures are not sufficiently supported by authoritative ABB documentation in the available sources. - Verify the host equipment and firmware.
Board revision, firmware, connector arrangement, configuration data, and the associated ABB control platform can all affect compatibility. Record these details before removing the original board.
Related Products
- ABB — 3BHE026866R0101 — Exact board designation and product-number pairing.
- ABB UCD208A101 — 3BHE020018R0101 — Related ABB control-board assembly; different hardware identification.
- ABB UCD216A101 — 3BHE027632R0101 — Related power-electronics control board; not automatically interchangeable.
- ABB UFC911B106 — 3BHE037864R0106 — ABB power-control electronics from a related equipment family.
- ABB UFC921A101 — 3BHE024855R0101 — Related ABB control electronics.
- ABB PDD205A1121 — 3BHE025335R1121 — ABB power-control PCB with a different functional role.
- ABB XDD501A101 — 3BHE036342R0101 — ABB excitation interface hardware; application differs from .
Procurement Check
Before approving an , verify:
- Exact designation:
- ABB product ID: 3BHE026866R0101
- Hardware revision
- PCB artwork/revision
- Host ABB equipment model
- Firmware version
- Connector arrangement
- Associated control boards
- Existing configuration/parameter data
- Signs of overheating or component damage
- Whether the replacement is new surplus, refurbished, or previously installed
Recommended procurement description:
ABB / 3BHE026866R0101 Industrial Control PCB, UA D154 A Control Board Assembly for Compatible ABB Power-Control and Automation Equipment.
The key procurement point is = 3BHE026866R0101. Because the detailed online specifications conflict, I would require the board label/photo and host ABB equipment model before approving a claimed electrical equivalent.
