Range of cabinet fans, manufactured from galvanised steel sheet with double thickness panel (sandwich type) internally lined with 17 mm thikness fireproof fibreglass acoustic insulation (M0). All models incorporate direct driven backward curved centrifugal impeller with motor fitted outside of the air stream and suitable for air stream temperature up to 120ºC.Available with single phase or three phase motors in 4 poles.MotorsSpeed controllable by Voltage.Three phase motors are speed controllable by inverter.All the motors are IP55 Class F insulation, with thermal protection.Electrical supply: Single phase 230V-50Hz. (CHVB) Three phase 400V-50Hz. (CHVT)On requestThree phase 230/400V-50Hz (CHVT).