FOR INDUSTRIAL AUTOMATIC VOLTAGE REGULATOR - Large Transformer Capacity - Automatic motorize output regulation up to 1% for SDC series - Automatic Time delay function - Built-in Automatic Regulator for Buck & Boost - User friendly Resettable Breaker for Input Protection - Internet/ Modem Surge Protection (RJ45) - Built-in Surge/Spike protection and EMI Filter - Over current protection - Output/Input Voltage meter for user friendly monitoring - Warranty: 24 months against manufacturing defetcs from date of delivery