Description
ABB 5SHX2645L0002 3BHB012961R0001
1. Basic Information
ABB 5SHX2645L0002 (3BHB012961R0001) is an original high-power high-voltage IGCT (Integrated Gate Commutated Thyristor) power module. Adopting integrated IGCT chip and freewheeling diode packaging, it features 4500V high voltage withstand and 2600A large current conduction capacity. With low switching loss, excellent thermal stability and high insulation performance, it is widely used in ABB high-voltage frequency converters, SVG reactive power compensation devices, new energy grid-connected converters and heavy-duty power transmission systems, serving as the core power conversion device for megawatt-level power electronic equipment.
2. Technical Specifications
2.1 Basic Parameters
- Model: 5SHX2645L0002
- Part No.: 3BHB012961R0001
- Device Type: High-voltage IGCT Power Module
- Structure: IGCT + Integrated Freewheeling Diode
- Application: High-voltage Inverter, SVG, New Energy Converter, Heavy-duty Drive System
- Mounting: Water-cooled pressure mounting
- Package: Ceramic insulated high-voltage package
2.2 Electrical Ratings
- Off-state Blocking Voltage: 4500V
- Rated On-state Current: 2600A
- Repetitive Turn-off Current: 2600A
- Feature: Low on-state voltage drop, low switching loss
- Transient Resistance: High dv/dt & di/dt withstand capability
2.3 Thermal Parameters
- Cooling Method: Professional water cooling
- Max Junction Temperature: 125℃
- Thermal Resistance: Low thermal resistance, efficient heat conduction
- Temperature Stability: No performance drift in wide temperature range
2.4 Environmental Parameters
- Operating Temperature: -25℃~+125℃
- Storage Temperature: -40℃~+130℃
- Humidity: 5%~95%RH (Non-condensing)
- Performance: Vibration resistance, high insulation, strong EMC resistance

3. Main Features
- High-voltage High-current Power Capacity: 4500V/2600A rated parameters support megawatt-level power conversion for industrial high-voltage systems.
- Integrated Dual-function Design: Built-in freewheeling diode simplifies circuit structure and reduces system failure points.
- Low Loss & High Efficiency: Optimized chip process reduces conduction and switching losses, improving energy conversion efficiency.
- Excellent Transient Impact Resistance: Strong tolerance to voltage and current transient shocks to avoid device breakdown and misoperation.
- Precise Switching Timing: Consistent switching performance ensures uniform current sharing in parallel operation.
- Efficient Water-cooled Heat Dissipation: Low thermal resistance pressure mounting structure ensures stable heat dissipation for 24-hour continuous operation.
- High-insulation Industrial Package: Ceramic insulation structure eliminates high-voltage creepage and leakage risks.
- Original Plug-and-play Replacement: Perfect compatibility with ABB high-voltage power units for fast maintenance and upgrade.
4. Working Principle
- High-voltage Blocking Standby: Maintain reliable off-state insulation and withstand high bus voltage without leakage or breakdown.
- Gate Trigger Turn-on: Turn on rapidly after receiving gate drive signal to conduct high-current main circuit.
- Steady High-current Conduction: Operate with low on-state loss to stably transmit high-power electric energy.
- Controllable Turn-off: Cut off main current accurately with precise timing to ensure reliable power circuit logic execution.
- Freewheeling Protection: The integrated diode absorbs reverse inductive electromotive force to protect the main chip from reverse voltage breakdown.
- Real-time Thermal Control: Transfer operating heat to water cooling system to keep junction temperature within safe range.
- Transient Fault Adaptation: Resist conventional grid fluctuations and impact loads, and cooperate with system protection to avoid fault expansion.
5. Applications
5.1 ABB High-voltage Frequency Conversion System
Serves as the core switching device of high-voltage inverter power units, realizing frequency regulation and energy-saving operation of high-voltage motors for fans, water pumps and compressors.
5.2 Grid Reactive Power Compensation Equipment
Applied to high-voltage SVG and flexible power transmission devices to realize dynamic reactive power compensation and power grid quality optimization.
5.3 New Energy Grid-connected Converter
Completes bidirectional power conversion for wind power and photovoltaic power stations to support stable grid connection of megawatt-level new energy units.
5.4 Rail Transit & Heavy Industry Drive
Adapt to heavy-load and frequent start-stop working conditions of traction converters and metallurgical transmission equipment to ensure stable power output.
5.5 High-voltage Equipment Maintenance & Upgrade
Replace aging and failed IGCT modules to restore power system bearing capacity and operational stability with low-cost upgrade.

