绝缘等级H排烟温度≤250防震结构，低噪音蜗壳和叶轮：蜗壳镀铝板，叶轮不锈钢安装方向需垂直于支撑零件带转速传感器InsulationclassHFluetemperature:≤250℃Motoranti-vibrationmountedHousing&impeller:aluminizedsheetsteel&stainlesssteelMountingpositionmustbespecifiedforcorrespondingsupportelements.Withspeedencoder)