supply of 3 kva ups , 3 kva ups with battery back up, technology ? mosfet pwm, inverter efficiency (%) - 70% or better, minimum guaranteed battery backup time (minutes) on full load 30 minutes, warranty for line inte ractive ups - 2 years, warranty for the battery from the date of delivery - 2 years, type of battery - smf-vr la confirming to jisc-8702 pt 1,2 &3, location of battery - outside the enclosure of ups, battery capacity ( ah) - 100ah, minimum guaranteed vah provided to meet or exceed minimum guaranteed back up time 12 00, location of battery - outside the enclosure of ups, input (volt) - single phase ac (160-280v), salient fe atures - maximum 10 milliseconds switching over time, variation in avr output in ac mode (avr voltage re gulation) - 230 volts +/-9%, protection - under voltage protection (input voltage <160 v) [ warranty period: 24 months after the date of delivery ] ]