http://www.tuncmatik.com/ru/product/overview/hi-tech-ultra-10-kva.html Input Phase 3 phase 4 wire and ground Nominal voltage 380/400/415 VAC Voltaj range 208~478 VAC Frequency range 45-55Hz de 50Hz/54-66Hz at 60Hz (auto sensing) Current THDi ≤3% (100% nonlinear load) Bypass voltage range Max. voltage Power factor ≥0.99 Output Phase 3 phase 4 wire and ground Nominal voltage 380/400/415 VAC, Power factor 0.9 Voltage regulation ± 1% Frequency Normal mode ± 1%, ± 2%, ± 4%, ± 5%, ± 10% of the rated frequency (optional) Frequency Battery mode (50/60±0.2%) Hz Crest factor 3/1 THD ≤2% with linear load, ≤5% with non linear load Efficieny 93% Battery Voltage Standart unit.±120Vdc (20pcs 12V7Ah) (2x20pcs 12V9Ah optional) Long run unit Charge current (A) (charge current can be set according to battery capacity installed Standard unit.1.35A (2.7A optional) Long run unit. Max. current 10A Transfer time Utility to battery. 0ms; Utility to bypass. 0ms Protection Overload AC mode Loads ≤110%. last 60min, ≤125%. last 10min, ≤150%. last 1min, >150% change to bypass immediately Overload Battery mode Loads ≤110%. last 10min, ≤125%. last 1min, ≤150%. >150% shut down UPS immediately Overload Bypass mode Breaker 20A Short circuit 120 peak Over temperature Line mode Switch to bypass, Backup mode Battery low Alarm and switch off Self-diagnostic Upon power on and software control EPO (optional) Shut down UPS immediately Battery Advanced battery management Noise suppression Complies with EN62040-2 Indicators & Alarm Status LED & LCD Line mode, Bypass mode, Battery low, Battery bad, Overload & UPS fault LCD panel Input voltage, Input frequency, Output voltage, Output frequency, Load percentage, Battery voltage & Inner temperature Audible & Visual Line failure, Battery low, Overload, System fault Management Operating systems Windows® 98/2000/2003/XP/Vista/2008, Windows¨ 7/8, Linux, MAC Interface RS 485, USB, Paralel (Optional), Dry contact, Intelligent slot, SNMP adapter (Optional), Relay card (Optional) Dimensions & Weight D x G x Y (mm) 828 x 250 x 868 Weight(kg) 115/57