This is an original ABB Aurora ac-power board designed for use in 10kW and 12.5kW inverter models. Labeled 3G83-99-1, this board handles the main power conversion and output stage, containing critical components such as DC bus capacitors, IGBT transistors with heatsinks, inductors, and driver circuits.

Built with high-current pathways and robust filtering, this module is essential for restoring full inverter functionality in high-output PV systems.

🛠️ This board is known to resolve critical inverter errors such as E007, E016, E029, and E034 (also displayed as 007, 016, 029, 034), which are typically caused by failures in the power switching stage.

🔄 Condition: Used, professionally inspected and tested.

🔧 Key Specifications & Features:

• Part Number: 3G83-99-1
• Output Marking: “OUT” – clearly designated power output section
• Connector J5: 10-pin interface for signal/control connection
• Capacitors:
  • High-voltage DC capacitors (varies by version: ISKRA 900VDC / KNG3114 B6)
• Switching Transistors:
  • 6 mounted on aluminum heatsink plate
  • Driver ICs and SMD control chips on board
• Inductors:
  • High-power coils with visible copper windings (yellow toroid cores)
• Quality Labels:
  • OK-KC, OK-BT, etc. for manufacturing QC
• Serial Labels:
  • Example P/N: 3G7404A4, Rev.AF (version-dependent)

✅ Functional Role:

✔ Core power switching and conversion for inverter output
✔ Handles high-voltage DC bus and AC power interface
✔ Integrated filters and driver control for IGBT stage
✔ Interface-ready for logic and measurement boards

🔗 Compatibility:

✔ ABB / Power-One Aurora 10kW and 12.5kW inverter models
(Confirm physical connector and firmware compatibility before installation)

📦 Includes: Power board with attached heatsinks and high-voltage components (as shown)

🚀 Restore power delivery and system efficiency with this original ABB high-current output board.