High Frequency Online UPS EH5200 Series (1-3KVA) This Online Series is an uninterruptible power supply incorporating conversion technology. It provides perfect protection specifically for computer equipment, communication systems to computerized instruments.The double-conversion principle eliminates all mains power disturbances. A rectifier converts the alternating current from the utility power to direct current. This direct current charges the batteries and powers the inverter. On the basis of this DC voltage. the inverter generates a sinusoidal AC voltage which is constantly powering the loads.Computers and Peripherals are thus powered entirely by the UPS. In the event of power failure, the maintenance-free batteries power the inverter. Features: Rated power 1KVA to 3KVA; Pure Sine wave output; TRANSIENT VOLTAGE SURGE SUPPRESS protect function for FAX、TELEPHONE、MODEM; Machine efficiency greater than 93%, input power factor greater than 0.99, input current harmonics less than 5%; Compatible to generator; Optional SNMP for monitoring.