適用于：石油、化工、冶金、水泥、造紙等行業，拖動各種機械設備 Applications: Driving the equipment of the petroleum industry、chemistry industry、metallurgy industry、paper making，etc. 特點：外型美觀，噪聲低、振動小，絕緣等級為F級，外殼防護等級為IP54或IP55。 Features: beautiful Profile, low noise and vibration. The insulation class is F; the protective class is IP54 or IP55. 使用條件：海拔不超過1000m。環境溫度隨季節變化，但***高不超過+40℃， Circumstance For Use: The altitude not exceeding 1000m above sea level. The ambient temperature subject to seasonal