Uninterruptible power supply effective power 1 980 w apparent power 2 200 va outputs 8 x iec 320 c13 2 x iec 320 c19 2 x iec jumpers inputs 1 x iec 320 c20 1 x schuko 1 x bs1363a british interfaces usb rs 232 nominal voltage 230 v bridging time 98 min bridging time at minimum load 1438 minutes reaction time 3 ms voltage waveform sine wave frequency range 50 60 hz yield in 981 input voltage 140 280 output voltage 230 v battery techno