... input AC 380V, output 240V DC, connect directly to PC and Server, just like UPS power system, no need to change, low ... with fanProtocalRS485, RS232Accoustic noise<60dBProtectionMulti-protectionMulti-protection including input over or under-voltage, output over or under- ... %Air pressure70 ~ 106kPaSafetyInsulation resistanceI/O to chassis and input to output >20MΩ (Test voltage: 500Vdc)Dielectric ...