Online ups effective power 16 000 w apparent power 20 000 va outputs 1 x hard wire 3 wire 1 x hard wire 5 wire 8 x iec 320 c19 2 x iec jumpers inputs 1 x hard wire 3 wire 1 x hard wire 5 wire nominal voltage 230 v bridging time 49 min bridging time at minimum load 998 minutes voltage waveform sine wave frequency range 47 63 hz yield in 951 input voltage 160 280 output voltage 230 v battery technology lead acid number of batteries 4 bat