They are designed for easy installation, high efficiency low noise level.
The motor is outside the airflow, this allows the fan to exhaust clean or slightly dusty air with max. temperature of 100°C.
• Base frame in galvanized steel sheet.
• Protection guard in drawn steel rod protected against the atmospheric agents, manufactured according to UNI 10615:1997.
• Backward curved wheel in galvanized steel sheet, with high efficiency and low noise level, statically and dynamically balanced according ISO 1940.
• Upper cover in techno-polymer, with appropriate slots for motor cooling.
• Outer deflector (FCV) in techno-polymer.
• Asynchronous three-phase double polarity motor manufactured according to international standards IEC 600034, IEC 60072, EMC 2004/108/CE, LVD 2006/95/CE, CE marked, IP 55, class F.
• Double speed by delta/star switching. Electric supply: 400 V / 50 HZ three phase.
• Backdraught gravity shutter (TS);
• Silencers (GR);
• Counterbase (CB);
• Support base for wawed roof coverings (BA);
• Inlet side Guard (RA);
• Service switch;
• Self transformer speed regulator;
• Delta/start switch;
• Support base/Silenced reduction (PB).