... 3 Phase UPS cost effective 2.Pure sine wave,suitable for all kinds of loads,especially for 3.inductive loads Features:3 phase ... overload abilitySmart charging mode: forced charging + floating chargeProtections: high/low-voltage, surge, spike, over-load, short- ... capacity, AVR/battery mode, error, overload ProtectionUtility Modeoutput high/low voltage, overload, overheat, short circuit, surge Battery ...