... to 3units Model:power ups system:double conversion ups/online upsIP/OP: 220/230/240VAC 50/60Hz IP/OP ... : 380/220VAC 50/60HzUPS FEATURES True online double conversion ups technologyWide input voltage rangeZero transfer timeProtection ... switchSmart RS232 and intelligent slot interfaceSealed lead acid, maintenance free batteryUPS APPLICATIONServers, Data-Center, Critical network devices, Sensitive ...