... /Mideast 4.CE,1000hrs warranty ST/STC series single/ three phase synchronous ac generator1.2KW-50KW,100% Copper,100% output ... neutral point. (3)The rated line voltage is 400V; Phase voltage is 230V; Frequency is 50Hz; Power factor is ... devices.2)single phase or three phase 3)CE,ISO9001 certificationST STC Generators ST STC Alternators single phase generator three phase generator electric generatorST ...