MODEL On-Line Uninterruptible Power Systems UPS model: 6, 8, 10, 12, 15, 20 KVA • LCD display front panel • Network surge protection • Emergency Power Off function • On-line technology • Support USB communication • High efficiency mode selectable • Battery remain time display • Pure sine-wave output with less than 3% THD • Input Power Factor Correction • Insolation Transformer Included • Digitized microprocessor controlled • Cold start function (DC power on)