Offline ups effective power 330 w apparent power 550 va outputs 8 x schuko nominal voltage 230 v bridging time 32 min bridging time at minimum load 742 minutes voltage waveform stage wave frequency range 47 63 hz input voltage 180 266 output voltage 230 v battery technology lead acid number of batteries 1 battery charging time 16 h max current 10 a protective measures alarm function data line protection surge protection power failure protect