Ambient temperature: -15oCAltitude: not exceed 1000m Rated voltage: 380V or any voltage between 220V-760V Rated frequency ??0Hz??0Hz Protection class ??P54??P55 Insulation class?? Cooling method : IC0141 Duty??1(continuous) Connection: Star-connection for up to 3kW, delta-connection for 4kW and above.