DUCT FANS FOR RECTANGULAR AIR DUCTS  RUCK EMKI...EC

• ETAMASTER Duct Fans
• EC motor
• Galvanised steel housing
• Built-in thermal cut-out
• Removable fan unit

FAN:

• Design: diagonal duct fan with EC motor, integrated into a rectangular casing (some models feature two fans integrated simultaneously).
• The specially designed casing (double-layer steel sheet) provides significantly better noise reduction than standard designs;
• Thanks to the use of energy-saving EC fans and the significantly more compact housing dimensions, lower energy consumption has been achieved, and pressure losses in the air flow have been reduced compared to standard fans with radial impellers;
• Once the cover has been removed, the fan section can be completely removed for servicing;
• The fan impeller blades are curved in three planes, allowing the airflow to flow optimally around the unit. The pressure on the blade surfaces is distributed evenly and efficiently, which reduces aerodynamic drag. Thanks to this design, the airflow is unidirectional at every point, and turbulent areas cannot form.

ENGINE:

• The drive consists of an electronically commutated (EC) motor with an integrated controller and thermal protection. 230V ~ single-phase, 50Hz power supply;
• The motors are designed for smooth speed control across the entire range, whilst maintaining high efficiency;
• The speed is adjusted by connecting a potentiometer or other device (controller) using a 0–10 V analogue signal;
• The device has an IPX4 or IP33 protection rating. Insulation class F;
• Maximum operating temperature: 35–60 °C – depending on the model selected.