... 300KVA Automatic voltage regulator,2. Automatic voltage regulator,3. Output voltage: 380v+-1%,4. CE, ISO9001-2000 certifications.5. Warranty: 18 months ... : 265~495V,2.Input frequency: 30~70Hz ,3.Output voltage: 220V±0.5%,4.Output frequency:50Hz±0.01% ,5.Wave distortion: <1 ... %,6.Isolation transformer output, safe and credible,7.Auto- ...