... .18 months warranty, 4. CE, ISO. 300KVA Automatic voltage regulator:1. 300KVA Automatic voltage regulator,2. Automatic voltage regulator,3. Output voltage: 380v+-1%,4. CE, ISO9001-2000 certifications.5 ... -protection and alarm for output overvoltage, over current, overheat, short circuit,8.Efficiency reach above 90% ,widely applicable load,for inductive ...