The Vertiv Liebert EXS is a compact monolithic uninterruptible power system (UPS) that employs true on-line, double-conversion technology that continuously conditions and regulates its output voltage. The Liebert EXS UPS is designed to supply computers, servers, networking, and other sensitive equipment with clean sine wave input power. It is ideally suited to power IT devices in small data rooms, IT closets, VoIP, branch storage and security systems. It offers economical, efficient, and reliable three-phase power for critical loads up to 20kVA. This intelligent UPS has flexible UPS, power distribution and battery arrangements to meet capacity and runtime demands. It has an integrated maintenance bypass cabinet, which ensures critical loads operate even during service. It has unity power factor and high power-density in an optimized design and standalone unit. It is easy to install and operate.