... Product DescriptionProduct Description A. Application: Supply variable frequency three -phase emergency power supply for fire facility only having single power supply or motor of primary load ... specification: 2.2, 3.7, 5.5, 7.5, 11, 15, 18.5, 22, 30, 37, 45, 55, 75, 93, ... emergency power supply) Model EPS -2.2~500KW Input Voltage 380 ± 20% Phase no. Three-phase four-wire +PE Frequency 50Hz ± 5% Output ...