Uninterruptible power supply effective power 600 w apparent power 850 va outputs 4 x iec 320 c13 interfaces usb rs 232 nominal voltage 230 v bridging time 4 min output voltage 230 v battery technology lead acid number of batteries 1 protective measures surge protection power failure protection alarm function operating temperature 0 35 c case rack mountable display led dimensions hxwxd 43 8 x 50 9 x 4 32 cm weight 138 kg