Uninterruptible Power Supply System requires 145 V to 275 V AC input voltage to operate efficiently. The Power Supply System functions in a frequency range of 50hz +/- 5% on mains. The Power Supply System is offered in a sturdy construction that ensures optimum performance for longer period of time. Uninterruptible Power Supply System works on quasi square waveform and its back-up time range varies from 20/ 40 minutes to 20 minutes to 4 hrs.
