STK 11 Series
Single-Phase 7.5–50 kVA
View Details 
Static Stabilizers
STK 33 HI Series
Three-Phase 120–800 kVA
Detailed product specifications and documentation available on request. Contact our engineering team for technical consultation.
Phase
Three-Phase
Capacity
120–800 kVA
Technology
Static (IGBT)
Select Capacity
Key Features
Engineered for reliability
Wide Input Range
Designed to operate across a broad input voltage range, ensuring stable output even under challenging grid conditions.
Fast Correction Speed
Rapid response to voltage fluctuations, protecting sensitive equipment from transients and sags.
Robust Construction
Heavy-duty industrial enclosure with IP-rated protection, designed for continuous operation in demanding environments.
Low Maintenance
Engineered for long service intervals with accessible components and straightforward maintenance procedures.
Technical Specifications
Detailed specifications
Input Characteristics
- Input voltage range
- 275/450V
- Input frequency
- 50 - 60 Hz ±5%
- Input phase
- Three phase
Output Characteristics
- Output voltage
- 380/400/415V
- Output accuracy
- ± 2.8/± 2.7/± 2.6V
Capacity & Rating
- Capacity range
- 120 kVA
Performance
- Efficiency
- > 98%
- Correction speed
- 1000 V/s
Protection
- Overload protection
- 10 s at 200%, 2 min at 150% load
- Short circuit protection
- Over/under-voltage, overcurrent, overload, overtemperature
Physical
- Dimensions (W×D×H)
- -
- Weight
- -
Environmental
- Operating temperature
- -10°C to +50°C
Documents & Downloads
Technical documentation
Certifications & Warranty
ISO 9001
CE
Warranty:
Warranty terms available on request
Related Products
Other products in this series
STK 33 Series
Three-Phase 15–150 kVA
View Details 
STK 33 MAX Series
Three-Phase 1000–3500 kVA
View Details Need help selecting the right configuration for your application?
Contact our engineering team