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: ST6K-400K (three in and three out) 2) Capacity (kW): 6-400kVA 3) Input voltage: three phases with four wires, 380V?5% 4) Battery DC voltage: a) 6-20kVA: 192V b) 30-400kVA: 336V 5) Noise: a) 6-20kVA: ≤53dB, 1m distance b) 30-60kVA: ≤56dB, 1m distance c) 80-150kVA: ≤65dB, 1m distance d) 200-400kVA: ≤68dB, 1m distance 6) Dimensions (W x D x H): a) 6-20kVA: 550 x 600 x 1,135mm b) 30-60kVA: 650 x 700 x 1,510mm c) 80-150kVA: 1,250 x 750 x 1,600mm d) 200-400kVA: 1,600 x 750 x 1,600mm 7) Weight (excluding battery): a) 6kVA: 260kg b) 10kVA: 280kg c) 15kVA: 310kg d) 20kVA: 340kg e) 30kVA: 480kg f) 40kVA: 520kg g) 50kVA: 560kg h) 60kVA: 580kg i) 80kVA: 780kg j) 100kVA: 860kg k) 120kVA: 980kg l) 150kVA: 1,250kg m) 200kVA: 1,600kg n) 250kVA: 1,800kg o) 300kVA: 2,100kg p) 400kVA: 2,500kg 8) Input frequency: 50Hz/60Hz?0% 9) Input power actor: ≥95% 10) Output voltage: three phases with four wires, 380V?% 11) Output frequency: 50Hz?.05% (when power is provided by battery) 12) Output harmonic distortion: pure sine wave, distortion factor <3% (linear load) or <5% (non-linear load) 13) Output unbalanced voltage: balanced load ≤1%, unbalanced load ≤3% 14) Output phase displacement angle: balanced load ≤1? unbalanced load≤3? 15) Output dynamic transient range: when output is 0-50%-100%≤3%, recovery time is ≤10ms 16) Output overload capacity: a) 125%: ≥10min b) 150%: ≥20s 17) Output peak factor：5:1 18) Output switching time: pure online zero switching 19) System performance MTBF: 300,000 hours 20) Temperature: -10~50? 21) Humidity: 0-93% (no condensation) 22) Altitude: ≤3,000m 23) Supported software interface: Novell Net Ware, Microsoft Windows9X, Windows2000, Windows NT