... , Bypass breaker; DC Fuse, Fan, redundant power supply; temperature sensor, EPO (Emergency Power Off), audible alarmsSoftware ProtectionsDischarging batteries, Battery charger ... high output voltage, DC fuse open, %v power supply fail, 13.5 v power supply fail, inverter overvoltage, 200% overload on each ... <60 dB @ 1,5 m.DimensionDimension1000X1860X870mmWeight (without batteries)510KG three phase ups