KEMOT PROavr-50k Automatic Three-Phase Voltage Stabilizer 50 kVA

Automatic three-phase servo motor voltage stabilizer delivering 50 kVA of precise power conditioning for industrial and commercial installations. Maintains a stable 3 x 400 V output even when input fluctuates between 280 V and 430 V, protecting sensitive machinery from voltage sags, surges, and phase imbalance.

Advantages

High efficiency above 95% reduces energy waste and operating costs. The LCD display provides real-time status of input/output voltage, load level, and fault conditions. Integrated protection against overload, overvoltage, undervoltage, short circuit, and overheating ensures uninterrupted operation. Fan cooling and Class B insulation allow reliable performance in demanding environments.

Suitable for

• CNC machines and industrial automation systems
• Medical imaging and laboratory equipment
• Data centers and server rooms
• HVAC and pumping stations
• Any three-phase load requiring ±3% voltage accuracy

Key specifications

• Power capacity: 50 kVA / 50000 VA
• Input voltage range: 280 V – 430 V AC (phase-to-phase)
• Output voltage: 3 x 230 V / 400 V AC
• Output accuracy: ±3%
• Technology: Servo motor
• Frequency: 50/60 Hz
• Efficiency: >95%
• Response time: <1.8 s for 10% voltage change
• Protection: overload, overvoltage, undervoltage, short circuit, overheating
• Display: LCD
• Cooling: fan
• Operating temperature: -5°C to 40°C
• Relative humidity: 20% – 90% non-condensing
• Insulation class: B
• IP rating: IP20
• Harmonic distortion: <3% at full load

Recommendations

Install in a clean, dry location with adequate ventilation. Ensure proper grounding and use appropriate cable sizing for 50 kVA load. Regular maintenance of servo motor and carbon brushes will extend service life.