Roof fan RF/4 250, 4-pole 43528060

Application
Roof exhaust fans RF are designed for ventilation systems of buildings with a low degree of air pollution.

They are used, among others, in exhaust installations from residential buildings, supermarkets, industrial halls, workshops, warehouses, toilets, garages, parking lots, farm buildings and others.

Electric engine
Single-phase 230V, 50Hz or three-phase 400V, 50Hz induction motor with external rotor. Motors adapted to smooth speed control.

There is thermal overload protection in the motor winding. Operating temperature -40 ° C +70°C, depending on the model.

Design for 125-315 models
In the RF fans (125-315), rotors with backward inclined blades are used, made of plastic or aluminum sheet (depending on the model). The