... :1. True online double conversion technology2. IGBT PFC technology.3. Wide input range.4. Zero transfer time.5. Compete ... and bypass state, overload, system fault.Audible alarmBypass mode, battery mode, battery low, overload, faultNoise1 meter distance55dB60dBCommunicationsDB9 portRS232Intelligent slotWebPower, AS400 card ... /3593/385555DimensionW*D*H(mm)260*570*717 3:1 Phase Online UPS(10~20KVA)