The KSTAR UBR60L Memopower Plus RTII Online Series Rack Mount UPS - 6000VA is a single-phase uninterruptible power supply with double-conversion technology and DSP control. It delivers a rated power of 6-10kva and can be used in both tower and rack configurations. The patented mini LCD screen can be rotated according to a different type of deployment. Features: True double-conversion Rack-mounted and floor-standing tower can be convertible Patented Minic LCD of which content can be rotated according to the type of deployment DSP technology guarantees high reliability N+X parallel redundancy Selectable quantity of battery for each group:16/18/20 pieces Adjustable charging current via LCD 3-stage charging design optimizes battery performance ECO mode operation for energy saving Self-diagnosis at startup Emergency power off function(EPO) Maintenance bypass is convenient for maintenance Generator compatible PDU is convenient for connecting load Communications:RS-232,USB,SNMP card (Optional), Relay card (Optional) Cold start Specifications: Capacity 6000VA/5400Watts INPUT Nominal Voltage 220/230/240Vac (L+N+PE) Operating Voltage Range 120Vac-276Vac Operating Frequency Range 50Hz45 to 55Hz60Hz54 to 66Hz OUTPUT Output Voltage 220/230/240Vac Wave Form Pure Sinewave PROTECTION Short Circuit Hold Whole System Overheat Line Mode: Switch to Bypass Backup Mode: Shut down UPS immediately INDICATORS Audible and Visual Alarms Line Failure, Battery Low, Overload, System Fault MANAGEMENT Communication Interface RS232,USB, Parallel Port, SNMP card (Optional), Relay card (Optional) Noise Levels <55dB