8000VA (8kVA) on-line, double-conversion UPS system is intended for critical server, network and telecommunications equipment. Installs in only 6 rack spaces (3U power module and 3U battery pack). Actively converts raw incoming AC power to DC, then re-converts output back to completely regulated, filtered AC output. Operates continuously without using battery power during brownouts to 156V and overvoltages to 276V. Supports detailed monitoring of equipment load levels, self-test data and utility power conditions via network interfaces. Front panel LEDs offer at-a-glance confirmation of line power status, battery power status, AC-to-DC conversion, DC-to-AC conversion, bypass mode and output power status. LCD panel with scroll buttons offers detailed diagnostic test information at startup and during self tests, plus real-time data on input and output voltage, frequency (Hz), load percentage and battery charge level. LED/LCD display panel easily rotates for viewing in rackmount or tower configurations.