APC Smart-UPS RT 3000VA Tower/Rack-Mountable UPS provides high density, true double-conversion on-line power protection for servers, voice / data networks, medical labs, and light industrial applications. This UPS has the ability to be configured with matching battery packs to comply with aggressive runtime demands of business-critical systems. Also provides value to customers with demanding power environments, including very wide input voltage window, extremely tight output voltage regulation, frequency regulation, internal bypass, and input power factor correction.