3000 VA / 3 kVA online, double-conversion UPS system for critical server, network, and telecommunications equipment. "XR" configuration offers twice the battery capacity as comparable "XL" version. 3U rackmount form factor with an installed depth of 26 in (66 cm). Expandable battery runtime with optional BP72V15-2U (limit 1), BP72V28RT-3U (multi-pack compatible) and BP72V18-2US (multi-pack compatible) external battery packs. Full time sine wave 110 or 120 V output with +/-2% voltage regulation. Online, double-conversion UPS 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 65 V and overvoltages to 150 V. Highly efficient operation in optional economy mode setting, saves BTU heat output and energy costs. NEMA L5-30P input plug. NEMA 5-15R, NEMA 5-15/20R and NEMA L5-30R output receptacles. Network-grade AC surge and noise suppression. Zero transfer time between AC and battery operation. Network management interfaces support simultaneous communications via USB port, DB9 serial port, and SNMPWEBCARD slot. Includes USB and DB9 serial ports. Built-in DB9 port offers both enhanced RS-232 enabled monitoring data, plus contact closure monitoring ability. HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X. Supports simultaneous detailed monitoring of equipment load levels, self-test data, and mains power conditions via all three network interfaces. Includes PowerAlert monitoring software and complete cabling. EPO interface. Integrated two bank PDU switching supports load shedding and remote-reboot of connected equipment. Multi-stage metered current monitoring and battery charge status LEDs. LED display panel easily rotates for better viewing in rackmount or tower configurations.