... 250, 280, 315, 400, 500KW, etc.d. Installation: floor type ( standard power distribution box)Standby time: 120min, it also can ... Main technical parameters (EPS series variable frequency three-phase(power type)emergency power supply) Model EPS -2.2~500KW Input ... for 150% Battery Maintenance-free sealing battery Switching time Standard type: 120min (may be set according to design requirement) Protection ...