Acoustic version (INS) with silencer integrated at the fan discharge, to reduce outlet noise level.
All model suitable for air stream temperature up to 120ºC continuous.
4 pole motors, three phase 400V-50Hz, IP55, Class F with PTC.
Speed controllable by frequency drive.
The electrical installation must be equipped with a security system which allows the maximum speed of the fans in cas of fire and disconects PTC.
4/8 and 4/6 pole motors.