UNO 67/500-4E

The housing supporting frames are double chamber aluminum profiles with corners made of plastic and double skinned (20mm) galvanized steel panels insulated with non-inflammable, noise and temperature insulating fiberglass mats. One side of the casing is open as standard. The impellers are balanced dynamically together with the external rotor motors at two levels according to quality level G2.5/G6.3 DIN ISO 21940-11. with direct driven external rotor motors. All our fans have motor protection, through thermal contacts in the motor windings as standard. The motors apply to protection class IP44/IP54.