... and telecommunication, railway,etc. 2.advanced tecnoloy inverter. UPS Power Inverter:SPWM technology, pure sine wave outputCPU control, ... LED display, easy to operateVertical, 19 inch rack, power machine cabinet installationOver-voltage, low-voltage, short-circuit, ... range of DC voltage40-57V90-150V180-300VAdversedisturbance current<10%System specProtectionOverload, over charge and over discharge; out ...