ABB 3BHE055094R0002 GBU72

ABB GBU72 (Model: 3BHE055094R0002) is a dedicated gate drive/rectifier bridge module designed for medium and high-voltage power electronic systems. It is widely used in large-scale frequency converters, HVDC converters, wind power inverters, and other high-power industrial drive equipment. The module achieves full electrical isolation between the control side and the power side via optical fibers, delivering high-speed, precise gate trigger pulses to reliably control the switching of power semiconductors such as IGBTs and IGCTs. Featuring a cast package with a plastic housing and a metal base plate, it can be directly mounted on heat sinks for efficient heat dissipation.

Main Technical Specifications

• Rated Average Rectifier Current: 72 A
• Maximum Repetitive Peak Reverse Voltage: 800 V
• Peak Pulse Current (8.3 ms half-wave): 1300 A
• Low Forward Voltage Drop (Typical): ≤ 1.1 V @ 36 A
• Operating Junction Temperature Range: -40 °C – +125 °C
• Junction-to-Case Thermal Resistance: 0.45 °C/W
• Insulation Resistance (500 VDC): ≥ 100 MΩ
• Operating Humidity: 5% – 95% RH (non-condensing)
• Vibration Resistance: Compliant with IEC 60068-2-6 standard

Product Features

1. High Reliability
    

   Optical fiber isolation and metal base plate heat dissipation prevent electromagnetic interference and ensure long-term stable operation.

2. Compact & Efficient Heat Dissipation
    

   Liquid-cooled or cast heat dissipation design maintains low junction temperature during high-power operation, extending service life.

3. Modular Structure
    

   Four-terminal pin design enables direct PCB insertion or bolt-down mounting, facilitating quick assembly and replacement.

4. Multi-communication Interfaces
    

   Built-in 10/100 Mbps Ethernet supports industrial protocols including Modbus TCP/IP, PROFINET, and IEC 61850, enabling seamless integration with SCADA, HMI, and upper-level systems.

5. Robust Protection
    

   With IP20 protection rating, the housing adopts pressure-resistant stainless steel (for high-voltage circuit breaker versions) and complies with international standards such as IEC 62271-37-013.

Installation Guidelines

1. Mechanical Fixation
    

   Control bolt torque within 15-20 N·m to avoid poor contact and localized overheating.

2. Heat Dissipation Contact
    

   Uniformly apply thermal grease on the contact surface between the heat sink and the base plate to ensure thermal resistance < 0.05 °C/W.

3. Electrical Isolation
    

   Keep optical fiber signal lines intact to prevent high-voltage side leakage.

4. Environmental Requirements
    

   The installation environment should have a relative humidity below 60%, with an operating temperature range of -40 °C – +85 °C and a storage temperature range of -55 °C – +125 °C.

5. Protection Configuration
    

   It is recommended to configure overcurrent protection (5 times the rated current) and overvoltage protection (not exceeding 1.2 times the rated voltage).

Maintenance Recommendations

• Regular Inspection: Conduct insulation resistance testing (≥ 100 MΩ @ 500 V DC) every 6 months, and monitor junction temperature and heat sink contact conditions.
• Replacement Records: Record operating parameters (average junction temperature, switching times) before and after replacement for subsequent status tracking.
• Moisture & Dust Prevention: Store in a dry environment for long periods to avoid insulation performance degradation caused by moisture.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

Global renowned brand cooperation

ABB 丨 GE 丨Allen Bradley  丨  Honeywell 丨   Emerson  丨  Bently Nevada   丨 Westinghouse  

Triconex  丨   Foxboro 丨   ICS Triplex  丨  Hima  丨  Schneider 丨  Yokogawa  丨 Woodward

—————————————————————————————