The Sonoran 1 is a single phase, on-line, double conversion, solid state inverter system utilizing patented ECM technology. Each system consists of a solid-state inverter, a temperature compensated rectifier/ battery charger, a continuous duty static switch, an internal maintenance bypass switch, battery plant, status/control panel, and synchronizing circuitry. The Sonoran 1 functions in conjunction with the existing building electrical system to provide high quality power conditioning, back-up power protection and distribution for lighting loads and other critical loads. The enclosure is a NEMA 4 or 4X (outdoor) or NEMA 12 or 12X (indoor) rain/weatherproof enclosure designed for harsh environmental conditions. This Energy Star rated unit is is an economical and reliable solution for your emergency backup needs.