1kva 2kva 3kva 24vdc ups power supply Main Features:1.Pure sine wave.2.Low frequency, inbuilt transformer.3.AVR,CPU control,4.Charge current Max.25Amp.5. Support inductive load, motor etc.6. Wide range of power input: 145~280VAC7. Output: 230vac+/-10%, 50hz+/-1Hz8. With RS232, RJ45 .9. Transfer time: typical 2~6ms, 10ms Max.Specification..