Features

Rectangular EC-centrifugal fan with backward curved impeller and swing out motor and impeller unit, for in-line installation in rectangular ducting. Casing made from galvanised steel and flanged on both ends, compact design, service friendly (cleaning) through swing out motor and impeller unit. Centrifugal, backward curved impeller made from polymer. Dynamically balanced for low noise operation. Aerodynamically optimised, intake air flow by means of inlet nozzle. Operated by an energy-saving, speed-controlled EC external rotor motor with IP44 protection and maximum efficiency. Maintenance-free and radio interference-free, ball bearing mounted. Integrated electronic temperature monitoring for EC motor and electronics. Standard with internal potentiometer for setting any fan speed between min. and max. speed. Stepless speed control with external potentiometer or stepless speed control with universal control system EUR-EC. Connection via standard terminal box (IP54) mounted on extended cable.