Protection: High Voltage Protection, Low Voltage Protection, Overload Protection, High Temperature Protection Product DescriptionFeature: 1)Advance microprocessor (MPU) controlled 2)Digital ... suppressed, Input voltage out of range. Protection: High Voltage Protection, Low Voltage Protection, Overload Protection, High Temperature Protection, Circuit Protection(0.5KVA~2KVA fuse; 3KVA~10KVA circuit ...