The Kemot Proavr-20k automatic three-phase voltage stabilizer regulates the voltage to 230 V with ±3% accuracy and supports both single-phase and three-phase operation. If a problem occurs in one phase, the protection system activates automatically and cuts off the voltage supply at the output.

It features a servo motor, a C.R.G.O. toroidal transformer, bypass mode, an LCD display and four wheels. The DELAY activation time can be set from 6 to 180 s. Protection features cover overload, short circuit, excessively high or low voltage, and overheating.

• Type: Servo
• Maximum power: 20000 VA
• Output voltage: 230 V
• Stabilization accuracy: ±3%
• Input voltage: 225–450 V
• Minimum start-up voltage: 225 V
• Minimum output voltage: 310 V
• Output voltage range: 400 V
• Operating phases: Single-phase and three-phase
• Efficiency: 98%
• Frequency: 50 / 60 Hz
• Enclosure: Steel
• Operating temperature: 0–40 °C
• Relative humidity: 10–102%
• Storage temperature: −15–45 °C
• Cooling activation: At 30% of rated power
• Cooling deactivation: At 20% of rated power
• Dimensions: 545 × 230 × 430 mm
• Weight: 48 kg