Features: 1) Multiple CPU intelligent controls 2) Advance IGBT inverted technology 3) Advance control design structure 4) Intelligent by-pass switch 5) Personal display interface 6) Battery switch-on function 7) Advance phase-balanced technology 8) Sole parallel redundant structure Specifications: 1) Mode: SU1K-20K (single in and single out) 2) Capacity (kW): 1 - 20kVA 3) Input voltage: single phase with two lines + ground wire, 220V?5% 4) Battery DC voltage: a) 1kVA: 48V b) 2 - 3kVA: 96V / 192V c) 6 - 20kVA: 192V 5) Noise: a) 1 - 6kVA: ≤52dB, 1m distance b) 10 - 20kVA: ≤l60dB, 1m distance 6) Dimensions (W x D x H): (1 - 6kVA) 530 x 264 x 592mm 7) Weight (excluding battery): a) 1kVA: 30kg b) 2kVA: 40kg c) 3kVA: 45kg d) 6kVA: 60kg e) 10kVA: 105kg f) 15kVA: 130kg g) 20kVA: 20kg 8) Input frequency: 50Hz / 60Hz?0% 9) Input power actor: ≥95% 10) Output voltage: 220V?.5% 11) Output voltage regulation: stable voltage ?%, dynamic voltage ?% (0 - 100% load fluctuation 20ms) 12) Output frequency stableness: 50Hz / 60Hz?.05% 13) Output frequency torsion rate: less than 1Hz/sec 14) Output instant load status: ?.4% (100% instant load fluctuation) 15) Output harmonic distortion: for linear load, less than 3% (full load), total rectifying harmonics is lass than 5% 16) Output overload capacitance: 150% 17) Output wave form: sine wave 18) Efficiency: above 95% 19) Transfer time: 0 second 20) Battery charging time: if it is fully charged, it can be filled to 90% of the total capacity after it is charged for 8 hours 21) Temperature: -10 - 50? 22) Relative humidity: 10 - 90% (no condensation) 23) Operation condition: lower than 1,500 meters above sea level (altitude)