Motor is external rotor motor ,IP 44 with class F insulation Motor voltage: 220-240V, 50/60Hztion Two speed motor Bearing : High quality ball bearing The scroll housing made of high quality ST14 steel Thermal overload protection Leather jacket is available to lower the noise and protect the powder coating The using ambient temperature : -30C ~ 60C Product Catalog : Inline Duct Fan MIF315 Ask for Quote
