Technical parameters:
1. Input: 5KVA / 20KVA / 50KVA
2. Output: 380V / 38 V
3. Working frequency: 50 - 60Hz
4. Insulation class: H
5. Short circuit impedance ﹤4%
6. Noise level﹤ 65db 
7. Medical leakage current <80uA
8. Insulation resistance: DC500V; 100MΩ MIN
9. Protection grade IP00

Application environment and conditions:
1, The altitude is not more than 1000 meters and if more than 1000 meters, derating is required.
2, Running temperature: -5 ℃ - 40 ℃, relative humidity is less than 90%. 
3, Without harmful gas, inflammable, explosive and conductive dust around.