ABB 5SHY35L4520 belongs to ABB’s 5SHY series of high‑power asymmetric IGCTs. Adopting pressure contact packaging, it integrates a GCT chip and anti‑parallel freewheeling diode, supporting high‑voltage and large‑current switching. Designed for medium‑voltage inverters, rectifiers and grid power conditioning devices, it delivers excellent thermal stability and anti‑vibration performance for heavy‑duty industrial and power system applications.

5SHY denotes ABB’s asymmetric IGCT series. 35 indicates a rated continuous current of 3500 A. 45 represents a rated blocking voltage of 4500 V. L4520 is the version code for production identification, ordering and inventory management. Alternative part numbers: 5SXE10‑0181, AC10272001R0101.

Rated repetitive off‑state blocking voltage is 4500 V, with a rated continuous current of 3500 A and a peak turn‑off current of 4000 A. Typical on‑state voltage is ≤ 2.3 V at rated load. Switching frequency ranges from 200 Hz up to 1000 Hz. Operating junction temperature spans −40 °C to +150 °C. Water cooling is the standard cooling method. The press‑fit package measures approximately 439 × 173 × 41 mm and weighs about 2.9 kg.

Equipped with heavy‑duty main power terminals and dedicated isolated gate drive terminals. The gate interface matches ABB’s dedicated gate drive units, featuring isolated driving to suppress electromagnetic interference. No additional communication ports are provided; external control signals connect via a dedicated drive board to ensure stable and reliable switching control.

Enables high‑voltage and large‑current switching for AC‑DC and DC‑AC power conversion. Provides rapid overcurrent shutdown protection to safeguard downstream equipment during short‑circuit faults. Low‑loss characteristics enhance the overall efficiency of converter systems. The pressure contact structure improves heat conduction and ensures long‑term operational stability under harsh conditions.

Widely used in ABB medium‑voltage drives for mining, metallurgy, oil and gas, and cement industries. Applied in large‑scale wind power converters and centralized photovoltaic inverters. Utilized in power grid FACTS devices such as SVC and STATCOM, as well as HVDC conversion equipment. Also suitable for high‑power industrial rectifiers and medium‑voltage UPS systems.

Mount the module securely on a water‑cooled heatsink with specified torque to ensure uniform pressure. Use low‑inductance copper busbars for main power connections and tighten terminals to the required torque. Equip with original ABB gate drive units before commissioning, and isolate high‑power wiring from gate signal wiring. Quarterly inspections include checking cooling water flow, quality and leakage. The module contains no user‑serviceable parts; replace the entire unit upon permanent hardware failure. Store and operate in a dry environment away from severe vibration and corrosive gases.