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Phone：+86 17062388866Description
The ABB 5SHX1960L0004 is a high-performance snubber capacitor module engineered for overvoltage suppression in medium-voltage drive systems. Designed specifically for ABB’s ACS 5000 and ACS 6000 IGCT-based drives, this low-inductance capacitor provides critical protection against voltage spikes during semiconductor switching events. With a 1960 μF capacitance rating and 4 kV DC voltage withstand capability, the 5SHX1960L0004 effectively clamps transient voltages to safe levels, extending the service life of power semiconductors like IGCTs and diodes. Its compact, press-pack design integrates multiple polypropylene film capacitors within a robust aluminum housing, enabling direct mounting on power stacks for minimized parasitic inductance.
Optimized for high-dI/dt environments, the ABB 5SHX1960L0004 features ultra-low equivalent series resistance (ESR < 0>
ABB 5SHX1960L0004
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 5SHX1960L0004 |
| Manufacturer | ABB |
| Product Type | Snubber Capacitor Module |
| Rated Capacitance | 1960 μF ±5% |
| DC Voltage Rating | 4000 V |
| Max Surge Voltage | 4400 V (≤10 ms) |
| Equivalent Series Resistance | ≤0.2 mΩ @ 20°C |
| Inductance | ≤20 nH |
| Temperature Range | -40°C to +85°C |
| Capacitance Tolerance | ±3% (-25°C to +85°C) |
| Cooling Method | Conductive (Baseplate) |
| Terminal Torque | 16 Nm ±10% |
| Weight | 5.2 kg |
| Dimensions | 180 × 125 × 70 mm (W × H × D) |
| Design Life | 100,000 hours @ 70°C |
Main Features and Advantages
Ultra-Low Inductance Design: With ≤20 nH parasitic inductance, the 5SHX1960L0004 provides effective high-frequency damping (>50 kHz), critical for protecting 4.5kV IGCTs during turn-off events where dV/dt can exceed 10 kV/μs.
Robust Thermal Performance: Polypropylene film dielectric maintains stable capacitance with ≤0.1% capacitance drift per 1000 hours at 70°C core temperature. Aluminum housing with 8mm-thick baseplate enables efficient heat transfer to liquid-cooled heatsinks.
Maintenance-Free Operation: Dry construction eliminates electrolyte leakage risks. Hermetic seals (IP00 when mounted) prevent moisture ingress even in 95% RH environments.
Safety Compliance: Integrated discharge resistors (≤5 min discharge time) meet IEC 61010-1 safety requirements. Internal fusing prevents catastrophic failure during overloads.
Vibration Resistance: Withstands 5g RMS vibration (10-500 Hz) and 50g mechanical shock per IEC 60068-2-6/27, making it suitable for mobile mining equipment and marine drives.
Application Field
The ABB 5SHX1960L0004 is essential in high-power drive systems requiring robust overvoltage protection:
Metals Processing: Protects IGCT stacks in reversing rolling mill drives (>20MW) where frequent torque reversals generate regenerative transients. Installed directly on 5SHX1445H0001 power stacks in ABB ACS 6000 drives.
Mining & Materials Handling: Safeguards conveyor drive systems against voltage spikes during emergency stops in deep-pit operations. Withstands vibration in bucket-wheel excavators and stacker-reclaimers.
Energy Infrastructure: Used in STATCOM voltage compensators for grid stabilization, suppressing transients during capacitor bank switching.
Marine Propulsion: Protects thruster drives in icebreakers and LNG carriers where salt spray corrosion resistance is critical.
Test Systems: Provides essential damping in high-power test benches for wind turbine nacelles (15+ MW) during regenerative braking events.
ABB 5SHX1960L0004
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