Description
The ABB 5SHY35L4512 represents the pinnacle of ABB’s medium-voltage IGCT technology, engineered for ultra-high-current applications demanding uncompromising reliability. This 3.3kV press-pack Integrated Gate-Commutated Thyristor stack delivers industry-leading 5,000A continuous current capacity with unprecedented surge withstand (85kA), making it ideal for the most demanding industrial drives and energy infrastructure. As an evolution of the 5SHY35L4510 series, the 5SHY35L4512 incorporates copper-tungsten composite electrodes and enhanced pressure distribution technology, enabling junction temperatures up to 140°C during transient overloads. The hermetic titanium-silicon carbide housing provides superior corrosion resistance in aggressive environments like offshore platforms and chemical plants.
Optimized for multi-level ANPC (Active Neutral Point Clamped) converters, the ABB 5SHY35L4512 achieves breakthrough efficiency with <4>

ABB 5SHY35L4512
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 5SHY35L4512 |
| Manufacturer | ABB |
| Product Type | Press-Pack IGCT Power Stack |
| Blocking Voltage | 3.3 kV (Asymmetric) |
| Nominal Current | 5,000 A RMS |
| Max Surge Current | 85 kA (1 ms half-sine) |
| Switching Frequency | 750 Hz (Maximum) |
| Turn-off Time | <4> |
| Thermal Resistance | 0.011 K/W (Junction-to-coolant) |
| Cooling Requirement | Phase-change cooling: 18 kW dissipation |
| Operating Temperature | -30°C to +140°C (Junction) |
| Mounting Pressure | 45 kN ±3% |
| Isolation Voltage | 15 kV AC (1 min) |
| Weight | 10.5 kg |
| Dimensions | 225 × 158 × 60 mm (W × H × D) |
| Short-Circuit Withstand | 20 μs |
Main Features and Advantages
Extreme Power Density: Copper-tungsten electrodes enable 15% higher current density than the 5SHY35L4510, supporting 200% overload for 60 seconds without derating. Symmetric pressure distribution ensures uniform thermal loading across all chips.
Predictive Thermal Control: Four embedded fiber-optic sensors provide real-time junction temperature monitoring (±1.5°C accuracy), enabling adaptive switching frequency adjustment through the gate driver interface.
Fault-Containment Architecture: Integrated voltage clamping limits dV/dt to <1>
Rapid Maintenance System: Tool-less quick-disconnect terminals enable stack replacement in <10>
Environmental Certification: Complies with DNV-GL marine standards and IEC 60068-2-6 vibration (10g @ 10-2000Hz). Halogen-free materials exceed RoHS 3 requirements.
Application Field
The ABB 5SHY35L4512 powers mission-critical systems requiring megawatt-scale control:
Heavy Industry:
35MW+ semi-continuous rolling mills
Shaftless kiln drives in cement production
10,000t metal press synchronization systems
Energy Transition:
Hydrogen compression trains (15MW+)
Carbon capture plant solvent circulation pumps
Molten salt pump drives for CSP plants
Mining & Materials:
6,000kW hoists in ultra-deep mines (>2,000m)
High-inertia SAG mill dual-drive systems
Stacker-reclaimer boom positioning
Strategic Infrastructure:
Seawater desalination high-pressure pumps
Data center direct-liquid-cooled power systems
Nuclear plant primary coolant circulation

ABB 5SHY35L4512
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