Product Overview

ABB GDC780BE21 with part code 3BHE004468R002 is a dedicated gate drive control board developed by ABB for medium voltage AC
drive systems. The ABB GDC780BE21 3BHE004468R002 module undertakes core tasks including IGCT/IGBT firing signal output,
power device feedback sampling and multi-level overcurrent/overvoltage protection. This GDC780BE21 board achieves high-speed isolated
signal transmission, effectively suppressing electromagnetic interference in high-power converter cabinets. ABB GDC780BE21 3BHE004468R002
 is widely adopted in mine frequency converters, wind power converters, oil & gas medium voltage drive equipment and metallurgical rolling mill power control units.

Complete Technical Specifications

Full Model Number: GDC780BE21

Material Code: 3BHE004468R002

Brand: ABB

Product Category: Gate Drive Control Board for Medium Voltage Drives

Control Input Power: DC 24V

Rated Control Current: 320mA

Controlled Power Device: IGCT / High-power IGBT

Signal Isolation Voltage: 3000V AC isolation

Communication Signal: High-speed differential feedback signal

Built-in Function: Over-current protection, over-temperature lockout, short-circuit self-shutdown, fault code output

Operating Temperature: -20°C ~ +65°C

Storage Temperature: -25°C ~ +70°C

Relative Humidity: 5% ~ 95% non-condensing

Vibration Resistance: IEC 60068-2-6 industrial standard

Dimension: 168mm × 102mm × 48mm

Net Weight: 0.52KG

Certification: CE, IEC 61800, UL industrial drive certification

Installation Method: Standard DIN rail & cabinet card slot plug-in

Core Product Features

ABB GDC780BE21 3BHE004468R002 high isolation circuit design eliminates high voltage crosstalk between control and power loops.

The GDC780BE21 module integrates multi-layer fault detection logic, instantly cutting off drive signals when power devices fail to avoid converter damage.

Compact plug-in structure of ABB GDC780BE21 enables fast replacement during equipment maintenance to reduce system downtime.

Wide temperature adaptability of GDC780BE21 supports continuous stable operation in heavy industrial high-dust and high-vibration environments.

Standard signal protocol matching all ABB medium voltage drive series, no extra modification required for direct replacement of old GDC780BE21 boards.

Original ABB GDC780BE21 3BHE004468R002 adopts industrial-grade PCB and military-level electronic chips for long service life.

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