A 3 Phase In True Online UPS is designed to provide power to single-phase equipment, such as computers, servers, networking equipment, and other critical devices. It typically includes a battery backup system that can provide power to the connected equipment for a limited amount of time, allowing for a graceful shutdown in the event of a prolonged power outage. 3 Phase In True Online UPS has energy-saving features such as high-efficiency modes and programmable shutdown schedules.