, ups power manager, ups systems, portable ups power supply, ups power consumption, ups backup power, battery backup power ModelC6KC6KSC10KC10KS3C10KS3C15KS3C20KS Rated Output Power6KVA/ ... Voltage DistortionTHD<2%(Full R Load) Output Power Factor0.8 Overload Capability105-125%,change into ... -phase input" "6"it means "output 6KVA" “S ”it means "long-acting,external battery needed". Castle UPS 6kva