Product Overview

• Part Number: KUC720AE, full model KUC720AE01; matched codes 3BHB000652R0001, 3BHB003431R0001
• Brand: ABB, Origin: Sweden
• Matching Device: ACS850 series medium voltage low voltage inverter drive unit
• Type: Inverter main control & power driver integrated board

• FunctionServes as the core signal control board of ACS850 frequency converter. Receives upper control commands, generates PWM drive pulses to trigger IGBT power devices. Collects voltage, current, temperature feedback signals of power unit to implement overcurrent, overvoltage, overheating hardware protection. Realizes speed closed-loop operation, fault detection and code reporting for inverter normal startup and stable variable frequency drive of motors.

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Core Features

• Complete drive pulse generation, signal acquisition and protection logic all integrated on one board
• Built-in multi-channel hardware protection circuit; instantly lock output upon fault to protect power semiconductors
• PCB conformal coating, dustproof, moisture-proof, anti-oil mist and anti-electromagnetic interference
• Reserved Ethernet port for inverter parameter debugging, fault diagnosis and program download
• Standard card fixed installation inside ACS850 power cabinet, easy disassembly for field replacement

• LED indicator lights display power status, running state and fault alarm for quick troubleshooting

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Technical Specifications

• Power Supply: AC 85~264V wide-range input
• Operating Temperature: -20℃ ~ +60℃
• Overall Size: 360×192×100mm
• Net Weight: 1.96kg
• Protection Grade: IP20 (cabinet internal installation only)
• HS Code: 8537101190

• Supply: New original, new old stock and fully tested refurbished boards available

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Compatibility

• Exclusive match: All ACS850 series frequency converters
• Supporting accessories: ACS850 power module, cooling fan, interface terminal block
• Application industries: Mining fans, water pumps, metallurgical rolling equipment, chemical production line motor drive

• Direct one-to-one replacement for all batches of KUC720AE/KUC720AE01

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Application

• Replacement maintenance when ACS850 reports drive faults, no output, startup failure or random shutdown
• Overhaul for inverter drive signal abnormality, repeated overcurrent alarms caused by aging control board
• Spare parts backup for long-term operation of industrial variable frequency drive equipment
• On-site debugging and maintenance of old ACS850 inverter power cabinets