This is a genuine AC + DC Power Board for ABB Aurora 3.0kW inverters, part number 3G740A4 / 3G74-99-1. It integrates the main power switching stage, including input/output filtering, IGBT modules, and a large heatsink for thermal management.

This board is essential for inverter operation, handling both DC input conversion and AC output generation, making it a core component of the power electronics system.

🔄 Condition: Used, fully inspected and tested for functionality.
📦 Delivered with original heatsink and high-power filter components installed.

🔧 Technical Highlights:

• Part Number: 3G740A4 / 3G74-99-1
• Includes:
  • Integrated AC and DC switching stages
  • High-current power semiconductors and filters
  • Factory-installed aluminum heatsink
• High-voltage isolation and robust design for PV environments
• Suitable for repair or refurbishment of Aurora 3.0kW inverter units

🔗 Compatible With:

✔ Aurora / Power-One / ABB 3.0kW Outdoor inverters
(Confirm exact model compatibility before ordering)

📦 Includes: Power board with attached heatsink and components (no enclosure or cables)

🚀 Restore full power functionality to your ABB Aurora inverter with this original AC/DC stage board.