Input voltage: 220V-/+20%, 380V-/+20% (20% as standard)  
Insulation resistance: The stabilizer-to-ground insulation resistance >=2M??
Output voltage: 220V-/+3%, 380V-/+3% (-/+3% as standard)  
Insulation intensity: No arc-over and no puncture with 2000V/1min sine AC voltage
Capacity: Single-phase 10KVA~300KVA
Three-phase 10KVA~2000KVA  
Harmonic wave: No distortion of output voltage and no harmonic wave increment
Regulation accuracy: -/+2~3%
Frequency: 50/60Hz
Response time: <=40ms
Temperature rise: <80K
Efficiency: >99%
Noise: <45dB