Circular axial fans with external rotor motors E.C. Technology, specially designed to obtain high energy efficiency.

Fan:

• Sheet steel metal support ring.
• Anti-contact protective grille pursuant to standard UNE‐EN ISO 12499.
• Plastic impeller (25) and sheet steel impeller (sizes 30 and 35).
• Grille-impeller airflow direction.
• Anti‐corrosive finish of polyester resin polymerised at 190 °C, previously degreased with phosphate‐free nanotechnological treatment.

Motor:

• High efficiency E.C. Technology external rotor motors regulated by 0-10V signal. IP44 protection.
• Single-phase 230V-50/60Hz and three-phase 400V-50/60Hz.
• Operating temperature: -20ºC +60ºC.