Heavy DutyIndustrial Ventilation Fan Product Name:Heavy DutyIndustrial Ventilation FanSize (mm)PhaseVoltagePowerSpeedAir DeliveryNoisePcs/Export CartonExport Carton Dimension(V-Hz)(W)(Rpm)(m3/min)(dB)A300Single Ph.220 240V, 50Hz9014003256140.7×40.5×25.2cm300Three Ph.380V, 50Hz9014003256140.7×40.5×25.2cm400Single Ph.220 240V, 50Hz15014008360149.5×49.5×27.5cm400Three Ph.380V, 50Hz15014008360149.5×49.5×27.5cm450Single Ph.220 240V, 50Hz200140010865157.5×57.5×36.2cm450Three Ph.380V, 50Hz200140010865157.5×57.5×36.2cm600Single Ph.220 240V, 50Hz33090014070171.3×71×38.5cm600Three Ph.380V, 50Hz750140014070171.3×71×38.5cm -Large Air Delivery. -Low Noise -Security Design -Durable Motor Good choice forair ventilationin different environments such as worshop, warehuse, meeting room, and public places, ect..