... specification: 2.2, 3.7, 5.5, 7.5, 11, 15, 18.5, 22, 30, 37, 45, 55, 75, 93, 110 ... . Main technical parameters (EPS series variable frequency three-phase(power type)emergency power supply) Model EPS -2.2~500KW Input Voltage 380 ... , over current protection, phase failure protection Display LED Efficiency Emergency power supply: above 95%; Running environment Temp.: -24 ~40 Relative humidity ...