... ups power system 3 IGBT and SPWM technology 4 smart RS232 port 5.Industrial use 3 Phase 10kva 15kva 20kva ups supplier ... ,voltage, current,parameter,modelLEDUPS openation,Rectification erro,UPS errorPortCommunication portTure RS232 portSurroundingTemperature, humidity0-40°CRemarkSpecification only for reference. Subject to change ...