Description
ABB UAD149A0001 (3BHE014135R0001) – High‑reliability control board for ABB power electronics and excitation platforms

The ABB UAD149A0001, part number 3BHE014135R0001, is a plug‑in control/IO interface board used widely in ABB power electronics applications—often seen in AC 800PEC‑based systems and UNITROL excitation installations. From my experience, it’s the kind of module you keep on the shelf for quick swap‑outs when uptime really matters. You might notice that the UAD-series boards are designed for stiff environments, with stable backplane communication and predictable behavior under load, which is exactly what maintenance teams look for in day‑to‑day operations.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Rack plug‑in design – Slides into the ABB system rack for fast field replacement and minimal downtime.
- Deterministic backplane bus – Stable communication to the host controller; typically used with AC 800PEC/UNITROL architectures.
- Industrial‑grade build – Components selected for reliability under electrical noise and temperature swings common in plants.
- Self‑diagnostics – Status indicators and onboard checks help technicians verify health after installation.
- Lifecycle support – Common in long‑running ABB fleets, which simplifies spares planning and compatibility checks.
- ESD‑safe, serviceable – Field replaceable with standard ESD practice; no special tools in most cases.
Technical Specifications
| Brand / Model | ABB UAD149A0001 (3BHE014135R0001) |
| HS Code | 8538.90 (Parts suitable for electrical control or distribution equipment) |
| Power Requirements | Supplied via system backplane; 24 VDC nominal input, typically <10 W consumption |
| Dimensions & Weight | Eurocard format, approx. 100 × 160 mm (3U), ~0.35–0.45 kg |
| Operating Temperature | 0 to +55 °C (typical for ABB rack‑mounted electronics); storage −25 to +70 °C |
| Signal I/O Types | Board‑level interfaces to the host system; field I/O depends on the rack and project configuration (mixed logic/analog in many cases) |
| Communication Interfaces | High‑speed system backplane to controller; front connectors used as per application optioning |
| Installation Method | Plug‑in module for ABB rack; front latch/retainers; ESD‑protected handling required |
Application Fields
The UAD149A0001 is typically deployed where fast, deterministic control is needed around power electronics:
- Generator excitation systems (UNITROL) in hydro and thermal plants
- High‑speed controller platforms based on AC 800PEC
- Large drives and test benches requiring precise timing and stable I/O handling
- Steel, pulp & paper, and marine power management, where rugged boards reduce nuisance trips
A maintenance engineer at a hydropower site told us this board “dropped in and synced with the existing configuration without surprises,” which mirrors what we usually see—compatibility first, then performance.
Advantages & Value
- Reliability – Stable in noisy electrical rooms; fewer intermittent faults compared to off‑brand substitutes.
- Compatibility – Matches ABB backplanes and common firmware baselines; reduces engineering time during swap.
- Downtime savings – Quick plug‑in replacement keeps outages short; ideal for critical assets.
- Traceable sourcing – Genuine ABB part number 3BHE014135R0001, easing QA audits and spares reporting.
- Technical support – We assist with part identification, revision checks, and handling guidelines before shipment.
Installation & Maintenance
- Cabinet environment – Install in a clean, dry rack with adequate ventilation; maintain ambient 0…55 °C.
- Wiring – Verify connector orientation and keying; seat the board fully before securing the front retainers.
- ESD safety – Use a grounded wrist strap and ESD mat; transport in antistatic packaging only.
- Configuration – After replacement, confirm the controller project recognizes the module; reload or validate parameters as required.
- Routine checks – Visually inspect connectors quarterly; clean dust with dry air; confirm status LEDs during startup.
- Firmware alignment – Where applicable, align board/firmware revisions with the running controller version to avoid nuisance alarms.
Quality & Certifications
- Manufacturer compliance: CE marking; RoHS‑compliant components in typical current production
- Manufacturing systems: ISO 9001 quality management at ABB production sites
- Warranty: 365 days from delivery
Procurement Tip
Before ordering, share your controller type and current board revision if available. It seems to speed up compatibility confirmation and helps us match the exact UAD149A0001 variant used on your site.






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