Champion ups systems from aar-em electronics are available with features like quick change, wide range avr, plug-& play, wide input range, etc. These ups systems have voltage capacity of 600 va, 360 w. Their input voltage is 230 v ac, single-phase 3-wire; and input voltage range is 145 v ac to 280 v ac. Output voltage is 230 v ac, single-phase and output waveform is stepped approximation to sine wave. Indicator for ac normal is solid green led indication; for backup it is slow blinking led indication; and for low battery it is fast blinking led indication. Alarms are slow buzzer beeps for ac fail indication; and fast buzzer beeps for battery low indication. Protections are overload on mains for mains fuse, overload on back for ups shutdown, and battery deep discharge for battery low alarm followed by shut down. Batteries are of sealed maintenance-free type. Batteries give with back-up time [typical] of 15 to 20 minutes.
