Uninterruptible power supply effective power 980 w apparent power 1 500 va outputs 8 x iec 320 c13 2 x iec jumpers inputs 1 x iec 320 c14 interfaces usb rs 232 nominal voltage 230 v bridging time 68 min reaction time 3 ms voltage waveform sine wave frequency range 47 63 hz input voltage 160 286 battery technology lead acid number of batteries 1 battery charging time 3 h special feature automatic self test protective measures power failure pr