3000VA/3kVA online double-conversion UPS system in 3U rack mount form factor for critical server, network and telecommunications equipment. 3U rack mount form factor with an installed depth of 29.5 inches (75cm). Expandable battery runtime with optional BP72V15-2U (limit 1) and BP72V28RT3U (multi-pack compatible) external battery packs. Full time sine wave 110 or 120V output with +/-2% voltage regulation. Online double-conversion uninterruptible power supply (UPS) actively converts raw incoming AC power to DC, then reconverts output back to completely regulated, filtered AC output. Operates continuously without using battery power during brownouts to 65V and overvoltages to 150V. Hardwired AC input and output (L-N-G, 120V). Highly efficient operation in optional economy mode setting, saves BTU heat output and energy costs. 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 3 network interfaces. Includes PowerAlert monitoring software and complete cabling. Emergency power off (EPO) interface. 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 and 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.