Uninterruptible power supply effective power 330 w apparent power 550 va outputs 6 x iec 320 c13 2 x iec jumpers inputs 1 x iec 320 c14 nominal voltage 230 v bridging time 32 min bridging time at minimum load 826 minutes reaction time 8 ms voltage waveform stage wave frequency range 47 63 hz yield in 77 input voltage 176 282 output voltage 230 v battery technology lead acid number of batteries 1 battery charging time 12 h max curren