In the demanding scenarios of high-voltage and high-power power conversion, what kind of semiconductor device can take on the role of the core switch? The ABB 5SHY35L4522 has the answer. As part of ABB’s 5SHY series, it is an asymmetric integrated gate-commutated thyristor (IGCT) module engineered specifically for high-power applications.

In fact, its “hockey-puck” press-pack design is full of ingenuity, inherently suited for snubberless turn-off operation in high-voltage and high-current working conditions. Boasting robust specifications of 4500V rated voltage and 3300A maximum on-state current, it easily handles medium-to-high frequency power conversion systems and reliably takes on megawatt-level power processing tasks. Low conduction loss combined with fast switching characteristics further elevates the overall energy efficiency of the system. From high-voltage direct current (HVDC) transmission projects to heavy-duty industrial drives and renewable energy conversion equipment, this core switching component can be found wherever high power and stability are required.

The asymmetric structure is a standout feature of this module, optimized specifically for snubberless turn-off conditions. This design is not just impressive on paper—it directly simplifies peripheral circuits, reducing both system complexity and costs. What’s more, its microsecond-level fast switching capability minimizes energy loss during operation.

Its robust hockey-puck press-pack housing not only ensures excellent thermal contact but also delivers top-tier mechanical stability, allowing it to operate reliably even in high-vibration industrial environments. With its high voltage rating of 4500V and large current capacity, it can be directly connected to medium-voltage systems or configured in series/parallel combinations for multilevel converters, further enhancing system power capacity and operational reliability. Another key point worth noting is its low on-state voltage drop, which effectively reduces power loss during steady-state operation and boosts the overall energy efficiency of the system.

This module targets power conversion fields with stringent performance requirements. In the power transmission sector, it serves as a key switching device in HVDC converter valves and Static Synchronous Compensators (STATCOMs), quietly supporting efficient power transmission and grid stability. In industrial settings, it regulates power for high-power motor drives and frequency converters in large rolling mills, mining hoists, and marine propulsion systems. In the renewable energy sector, it acts as a core component in high-capacity wind and solar inverters, facilitating the efficient grid integration of clean energy. Additionally, it is also used in traction converters for rail transportation and large industrial uninterruptible power supplies (UPS).

Don’t overlook the small details before installation. First, ensure a clean and dust-free working environment and carefully check the module polarity. Then, use a specialized press-fit tool to uniformly mount the module onto the heat sink according to the specified torque—this ensures optimal electrical contact and heat dissipation performance. Shielded cables are recommended for gate signal connections, and attention should be paid to maintaining a safe clearance between power terminals.

There are also tips for routine maintenance: regularly inspect the operating status of the cooling system and promptly clean dust from the heat sink surface to ensure heat dissipation efficiency. Specialized diagnostic tools can be used to monitor switching waveforms and module temperatures for predictive maintenance. In addition, strict adherence to high-voltage safety protocols is mandatory during operation to avoid potential safety hazards.

ABB guarantees that the 5SHY35L4522 is an original genuine product. Typically, suppliers provide brand-new imported authentic goods, ensuring reliable delivery timelines and comprehensive after-sales support. The product fully complies with relevant international electrical and safety standards required for harsh industrial environments, giving users peace of mind in their applications.