Description
The ABB 5SHX1445H0001 is a high-power Integrated Gate-Commutated Thyristor (IGCT) press-pack stack designed for megawatt-scale industrial drives and power conversion systems. As part of ABB’s PowerStack series, this 4.5kV asymmetric blocking semiconductor module delivers exceptional current handling (2,000A nominal) and surge withstand capability (40kA) in a compact, liquid-cooled package. The 5SHX1445H0001 features revolutionary press-pack technology that eliminates wire bonds and solder joints – significantly enhancing reliability in high-cycling applications like rolling mills and mine hoists. Its hermetic ceramic-metal housing provides complete environmental isolation while enabling direct double-sided water cooling for thermal densities up to 150 W/cm².
Engineered for seamless integration into ABB’s ACS 6000 medium-voltage drives, the ABB 5SHX1445H0001 combines ultra-fast switching (<5 μs turn-off) with low conduction losses (1.7V forward drop). The symmetric pressure-contact design ensures uniform current distribution and enables predictive maintenance through integrated temperature monitoring. This robust architecture makes the 5SHX1445H0001 indispensable for critical infrastructure requiring maximum uptime, including power transmission systems, marine propulsion, and heavy industrial processing.

ABB 5SHX1445H0001
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 5SHX1445H0001 |
| Manufacturer | ABB |
| Product Type | Press-Pack IGCT Power Stack |
| Blocking Voltage | 4.5 kV (Asymmetric) |
| Nominal Current | 2,000 A RMS |
| Max Surge Current | 40 kA (1 ms half-sine) |
| Switching Frequency | 500 Hz (Typical) |
| Turn-off Time | <5 μs |
| Thermal Resistance | 0.015 K/W (Junction-to-coolant) |
| Cooling Method | Direct Water Cooling |
| Operating Temperature | -40°C to +125°C (Junction) |
| Mounting Pressure | 35 kN (Recommended) |
| Weight | 7.8 kg |
| Dimensions | 220 × 140 × 50 mm (W × H × D) |
| Certifications | UL, CE, IEC 60747-9 |
Main Features and Advantages
Ultra-High Reliability: The press-pack design eliminates wire bonds and solder fatigue points, providing 10× higher thermal cycling capability (>100,000 cycles) than conventional modules. This ensures operational integrity in heavy-cycling applications like steel rolling and elevator systems.
Advanced Thermal Management: Double-sided direct liquid cooling maintains junction temperatures within 15°C differential at full load. Copper-molybdenum composite electrodes optimize thermal expansion matching, preventing mechanical stress during power cycling.
Fault-Tolerant Architecture: Integrated fiber-optic interfaces enable redundant gate control signal paths. The symmetric clamping structure ensures current balancing even during asymmetric fault conditions.
Maintenance-Optimized Design: Slide-in rail mounting with automatic contact pressure compensation allows replacement in <15 minutes. Front-accessible optical ports simplify troubleshooting without disassembling power connections.
EMC Compliance: Ultra-low commutation loop inductance (<5 nH) and integrated dV/dt filters meet CISPR 11 Class A EMI standards without additional external components.
Application Field
The ABB 5SHX1445H0001 excels in high-power industrial systems demanding extreme reliability. In metals manufacturing, it drives reversing mill stands (>25 MW) where rapid torque changes require unmatched cycling endurance. Mining operations deploy this stack in winder systems and overland conveyors, surviving vibration levels exceeding 5 g RMS in deep-shaft environments.
For energy infrastructure, the 5SHX1445H0001 enables high-efficiency STATCOM compensators handling 150+ MVAR reactive power for grid stabilization. Marine applications leverage its corrosion-resistant encapsulation in thruster drives for icebreakers and LNG carriers. The stack also serves test benches for wind turbine generators, supporting regenerative braking at 200% overload capacity. In chemical processing, its hazardous area certification (ATEX/IECEx) ensures safe operation in compressor drives within explosive atmospheres.

ABB 5SHX1445H0001
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