ELEKTROVENT Axial Roof Curb Exhauster type ROOF-AM •The perfect fan for extracting large volume of air from warehouses and industrial buildings. Horizontal or Vertical air discharge • 8 sizes with impeller from 450 up to 1000 mm diameter50 or 60 Hz, single or three phase motor, IP 55, insulation class F. • Conveyed air clean, not abrasive, Temperature of conveyed air: -20°C / +50°C., Voltage: three phase version (T) 400V-3Ph. Single phase version (M) 230V-1Ph. , Frequency: 50Hz. Working as exhaust fan.