Tripp Lite provides a wide variety of On-Line UPS systems for every application. Models are available in both single-phase and 3-phase configurations. Customers require 3-phase UPSs when the power needs generally rise above 16 kVA. Available features on all models include: zero transfer time, double-conversion operation—to provide connected equipment with the highest quality power; intelligent operation—to allow the UPS to relay more detailed operating conditions through PowerAlert power management software; extended run capability—to allow extended battery backup runtime for critical systems during a blackout; small-footprint rackmount, tower and low profile cabinets—to save space in every application; communication port(s) and PowerAlert Software (FREE, included)—to automatically shut down unattended systems. Available features on select models include a hot-swappable modular design and N+1 redundancy—to provide 100% availability.