Ventilation units with internal acoustic insulation with removable manhole covers.

Fan:
• Galvanised sheet steel structure with thermal and acoustic insulation.
• Fibreglass reinforced polyamide-6 impeller. Models 100-4T-15 and 100-4T-20 only in AL version in cast aluminium.
• Ventilation units prepared for vertical or horizontal work.
• Airflow direction from motor to impeller.

Motor:
• Motors with IE3 efficiency for powers equal to or greater than 0.75 kW, except single-phase, 2-speed and 8-pole.
• Class F motors with ball bearings. IP55 protection. Except single-phase models from size 45 to size 56, with IP54 protection. 1 or 2 speeds depending on model.
• Single-phase 230 V 50 Hz and three-phase 230/400 V 50 Hz (up to 4 kW) and 400/690 V 50 Hz (powers greater than 4 kW).
• Working temperature: -25 ºC +50 ºC.

Finish:
• Galvanised steel sheet.

On request:
• AL version rotors made of cast aluminium.
• Airflow direction from impeller to motor.
• 100% reversible impellers.
• Special windings for different voltages.