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 rack mount 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 VAC output with +/-2% voltage regulation. Online, double conversion uninterruptible power supply (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 VAC and overvoltage's to 150 VAC. 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 slot for network management card options. 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 3 network interfaces. PowerAlert UPS monitoring software is available via free download. Emergency Power Off (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 rack mount or tower configurations. Dataline surge suppression for dialup, DSL or network Ethernet connection. Mains power and voltage regulation LEDs. Audible Alarm. Self-test. Fault tolerant auto bypass mode. 4-post rack mount accessories included 2- 9USTAND tower kit and 2POSTRMKITHD 2-post rack mount accessories available. Field replaceable, hot swappable internal batteries and external battery packs. Attractive all black UPS design.