Product Overview

• Part Number: KUC720AE01, alternative part 3BHB000652R0001
• Brand: ABB
• Applicable Equipment: ABB ACS850 series frequency converter power unit
• Type: Inverter main drive control board

• FunctionThe central control component of ACS850 variable frequency drive. It processes operation commands, generates PWM trigger signals to drive power IGBT modules. It collects real-time current, voltage and temperature signals, activates overvoltage, overcurrent and overtemperature protection. It records fault codes and ensures stable speed regulation of fans, pumps and other motors.

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Core Features

• Integrated pulse generation, signal sampling and multi-protection circuits
• Coated PCB, resistant to dust, moisture, oil mist and industrial electromagnetic interference
• Comes with debugging communication interface for parameter configuration and program upgrading
• Onboard LED indicators for power, operation and fault status for fast troubleshooting

• Standard built-in installation inside ACS850 cabinet, convenient disassembly and replacement

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Technical Specifications

• Input Power: AC 85~264V
• Operating Temperature: -20℃ ~ +60℃
• Protection Level: IP20 (for cabinet installation only)
• HS Code: 85389091

• Supply: Brand new original and fully tested refurbished goods available

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Compatibility

• Fully compatible with all ACS850 inverters; interchangeable with KUC720AE
• Matched with ACS850 power modules, heat dissipation fans and terminal accessories
• Widely used in chemical, mining, water supply and metallurgy motor drive cabinets

• Direct same-model replacement only

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Application

• Replacement when ACS850 fails to start, loses output or triggers frequent drive faults
• Troubleshooting abnormal feedback signals and recurring protection alarms
• Spare maintenance part for long-running industrial frequency conversion equipment