... dust,corrosivegases,combustible gases, oil mist,water vapor, water or saltAltitude1000m Ambient temperature-10~+40 ... general technical data ItemDescriptionInputRated voltage,frequencyThree phase 380V~440V,50Hz/60Hz OutputAllowed workingvoltage scopeVoltage: 320V~460V,voltage ... ItemDescriptionInput and Output characteristicsInput voltage scope380/220V±15%Input frequency scope67~63HzOutput voltage scope0 ...