RZA

Directly driven double inlet fan with integrated external rotor motor with low slip. Galvanised sheet steel fan housing, with movable feet. The fan outlet is fitted with a connecting flange.

High-efficiency impeller with 12 backward-curved blades with concave profile, discharge edge at an angle to the impeller shaft, welded and coated. Tongue in the fan outlet at an angle to the blade outlet edge. Optimally shaped inlet nozzle for low inflow losses. Impeller statically and dynamically
balanced according to DIN ISO 21940-11, quality class G 2.5.

Impeller mounted on the rotor of the external rotor motor in protection class IP 54, completely maintenance-free, ready for connection. The motor is optimised for optimum efficiency and can be controlled from 0 to 100% speed via a frequency converter. The motor is mounted vibration-free to the fan casing. The motor is protected by PTC thermistors fitted as standard. Power supply is possible at constant speed. Performance data in accuracy class 2 according to DIN 24166