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ABB 5SHY35L4520
The ABB 5SHY35L4520 is a high-power Asymmetric Integrated Gate-Commutated Thyristor (IGCT) module designed for demanding medium-voltage and high-power converter applications. It belongs to ABB’s advanced power semiconductor product family and combines a high-voltage thyristor structure with an integrated gate drive unit for fast and reliable switching performance.
This IGCT module is mainly used in medium-voltage drives, industrial power converters, renewable energy systems, and high-power electrical transmission applications where high efficiency, high current capability, and robust switching performance are required.
Product Parameters
| Parameter |
Specification |
| Manufacturer |
ABB |
| Model |
5SHY35L4520 |
| Product Type |
Asymmetric IGCT (Integrated Gate-Commutated Thyristor) |
| ABB Type Designation |
4500V / 4000A |
| Part Number |
5SHY35L4520 |
| Voltage Rating (VDRM) |
4500 V |
| Maximum Turn-Off Current (ITGQM) |
4000 A |
| Average On-State Current (ITAVM) |
1700 A (Tc = 85°C) |
| Surge Current Capability |
Up to 50 kA (3 ms) |
| Mounting Type |
Press-pack / hockey-puck style |
| Mounting Force |
40 kN |
| Weight |
Approx. 2.9 kg |
| Dimensions |
439 × 173 × 41 mm |
| Cooling Method |
Double-sided cooling design |
| Gate Unit |
Integrated gate drive unit |
| Replacement Reference |
5SHY35L4510 |
Core Function
The ABB 5SHY35L4520 performs high-speed switching and power control in high-voltage power electronic systems. Its main functions include:
-
High-power switching control
Controls large electrical currents in medium-voltage converter circuits.
-
Fast turn-off capability
Provides high controllable turn-off current through integrated gate commutation technology.
-
Energy conversion management
Enables efficient AC/DC and DC/AC conversion processes.
-
Reliable power semiconductor operation
Supports demanding industrial applications requiring continuous operation under high electrical stress.
The integrated gate unit reduces parasitic inductance between the semiconductor and driver, improving switching performance and system reliability.
Design Features
Integrated Gate-Commutated Technology
The IGCT combines the advantages of a traditional thyristor with transistor-like switching capability. The integrated gate structure allows rapid current interruption and improved switching efficiency.
Asymmetric IGCT Structure
The asymmetric design is optimized for applications using external reverse-conducting paths or antiparallel diodes, improving conduction efficiency and reducing system losses.
High Voltage and Current Capability
With a 4500 V blocking voltage and 4000 A turn-off capability, the module is suitable for high-power industrial converter platforms.
Snubberless Turn-Off Performance
The device supports high-performance turn-off operation without requiring traditional snubber circuits, simplifying system design.
High Electromagnetic Immunity
The integrated gate unit provides improved resistance against electromagnetic interference in industrial environments.
Hardware Composition
The ABB 5SHY35L4520 typically consists of:
Application Scenarios
ABB 5SHY35L4520 IGCT modules are commonly applied in:
Medium Voltage Drives (MV Drives)
Used in large industrial motor control systems such as:
- Oil & gas equipment
- Mining machinery
- Large compressors
- Pumps and fans
Power Converters
Applied in:
- Industrial AC/DC converters
- High-power inverter systems
- Energy conversion equipment
Renewable Energy Systems
Suitable for:
- Wind power converters
- Large-scale renewable energy conversion systems
Power Transmission Equipment
Used in:
- Flexible AC Transmission Systems (FACTS)
- High-power grid stabilization equipment
Maintenance Points
- Check mechanical mounting force according to ABB installation requirements.
- Ensure proper cooling conditions to prevent thermal stress.
- Inspect gate unit communication and feedback signals regularly.
- Avoid contamination or damage on press-pack contact surfaces.
- Verify insulation resistance before installation.
- Replace damaged IGCT modules with compatible ABB-approved components.
Comprehensive Evaluation
The ABB 5SHY35L4520 is a high-performance asymmetric IGCT module designed for industrial high-power applications. With 4500 V voltage capability, 4000 A turn-off current rating, integrated gate control, and robust press-pack construction, it provides excellent switching reliability for medium-voltage drives and power conversion systems.
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