The Tripp Lite SU1500RTXLCDTAA 1500VA UPS system protects connected equipment against equipment damage, downtime and data loss due to power outages, voltage fluctuations and transient surges. Featuring a 1350W capacity, high 0.9 power factor, true on-line operation with pure sine wave output and zero transfer time to battery, the SU1500RTXLCDTAA provides the highest level of battery backup and AC power protection for critical server, network and telecom equipment. UPS battery backup keeps connected equipment operational through short power failures, and provides time to save data and perform an orderly system shutdown in case of a prolonged blackout. The internal battery set provides 14 minutes of support at half load and 4.2 minutes at full load. During normal operation, incoming utility power keeps the battery fully charged so backup power will be available when needed. For mission-critical applications demanding continuous uptime, the fully scalable 1.5kVA UPS can provide expandable runtime with optional external battery packs, such as Tripp Lite’s BP48V242UTAA (sold separately). A battery-independent restart ensures automatic UPS power-up after lengthy power outages, even with expired batteries. Six NEMA 5-15R outlets are divided into two switchable breakered load banks. Each numbered load bank may be individually powered on and off remotely to reset or reboot connected equipment. Operating the UPS system and monitoring connected equipment is easy with this interactive LCD screen. It reports operating mode and nine selectable data screens, including load, voltage and battery information. It also gives you 16 screens worth of configuration and setup options.