یوپی اس ALJA مدل MR 33120 ، Online double conversion DSP and Full digital control N+X parallel redundancy UPS EPO function Internal maintenance bypass PCB board feature with anti-corrosion paint coating Module communication ring connection redundancy design Convenient and multi-functional parameter setting THDI < 3% Efficiency > 95% Efficiency > 99% at ECO mode Easy maintenance Advanced power module dormancy technology Real time monitoring parameters Record and save event logs Real time abnormal alarm Smart diagnosis status meet the needs of all applications Intelligent management software Optional internal SNMP adapter Input power factor > 0.99 Hot-Swappable feature Flexible network management Intelligent battery management Intelligent battery charging system Allow 100% three phase unbalance load