Description
ABB 3BUS208796-501 – Original OEM PCB Assembly for ABB Automation/Drive Cabinets (Like‑for‑Like Replacement)
ABB part 3BUS208796-501 is an original spare PCB assembly supplied for ABB industrial control systems. From my experience, teams use this kind of board as a like‑for‑like drop‑in when a cabinet position starts showing intermittent faults or communication noise, and they need to restore stable operation without re‑engineering the rack. You might notice that the mechanical layout and connector style are meant for quick replacement—field wiring typically stays put, which is a big help during tight outages.
Company’s Order Placement Process and Guarantees
- Warranty period: 365 days
- Delivery time: 1 week for in‑stock; no more than one month at the latest
- Payment method: 50% advance payment, full payment for delivery
- Express delivery methods: FedEx, UPS, DHL
- Process: Confirm model and quantity → Proforma Invoice → Advance payment → Functional testing and packing → Final payment → Express shipment with tracking
Key Features
- Genuine ABB spare – Ensures mechanical fit and connector alignment for a true like‑for‑like swap.
- Backplane integration – Typically interfaces through the cabinet’s existing backplane or ribbon connectors, avoiding rewiring.
- Service‑friendly layout – Front‑edge indicators and accessible test points (where present) make checks faster.
- Noise‑robust operation – Designed for electrically noisy panels with drives, contactors, and long cable runs.
- Revision‑controlled – The -501 build keeps behavior consistent across installed bases in most cases.
Technical Specifications
| Brand / Model | ABB – 3BUS208796-501 (OEM PCB assembly) |
| HS Code | 853890 (Parts suitable for switchgear/control equipment) |
| Power Requirements | Typically powered via cabinet backplane (24 VDC electronics supply; varies by application) |
| Dimensions & Weight | Plug‑in PCB form factor; compact card; light‑weight module class |
| Operating Temperature | 0…55 °C cabinet ambient (typical for ABB control electronics) |
| Signal I/O Types | Backplane analog/digital lines; service LEDs/test points where applicable (exact I/O depends on cabinet role) |
| Communication Interfaces | Proprietary ABB rack/backplane interface; no user Ethernet on the board body in most cases |
| Installation Method | Rack or base‑mounted plug‑in card with edge/ribbon connectors; front retention hardware |
Application Fields
Where this part is typically applied when replacing like‑for‑like:
- ABB automation cabinets (System 800xA / Advant / Symphony Plus) requiring OEM spare boards
- Drive and converter cubicles where a control/interface PCB needs restoration
- Lifecycle extension projects and N‑1 spares coverage on critical production lines
- Brownfield maintenance where avoiding rewiring and retesting is a priority
Advantages & Value
- Reliability: A fresh OEM board typically clears intermittent faults and stabilizes communication or I/O behavior.
- Compatibility: Mechanical fit and connector pinout match the original—no cabinet changes in most cases.
- Cost & downtime: Like‑for‑like swap avoids lengthy requalification and engineering time.
- Support: We can perform power‑up checks and basic indicator tests, then share a brief report prior to shipment.
“Replaced the suspect slot with 3BUS208796‑501 during a short outage. The rack came up clean, LEDs looked right away, and our trip logs have been quiet since.” — I&C supervisor, minerals processing plant
Installation & Maintenance
- Cabinet environment: Clean, dry, and well‑ventilated enclosure; stay within the cabinet’s rated ambient.
- Handling: Use ESD precautions; avoid flexing the PCB; inspect connectors/standoffs before insertion.
- Power‑up checks: Verify 24 VDC supply tolerance (if applicable), ground scheme, and status LEDs prior to enabling the process.
- Wiring: Typically no field rewiring—ensure the card seats fully on the backplane and locking hardware is secured.
- Routine care: Quarterly dust removal, connector reseat checks, and review of diagnostic logs for early warnings.
- Safety: Follow LOTO; allow any DC links to discharge; adhere to site ESD/arc‑flash procedures.
Quality & Certifications
- Quality system: Manufactured under ISO 9001 processes (typical for ABB control electronics).
- Compliance: Intended for use inside CE/UL‑listed control panels; RoHS status may vary by production year.
- Warranty: 365‑day warranty from shipment date.
Share your system family (e.g., 800xA / Symphony Plus), cabinet tag, and the slot position, and we’ll confirm interchangeability for 3BUS208796-501 and provide a concise functional test record before dispatch.
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