It is an air flow switch designed to control the flow of air and non-aggressive gases in pipes and ducts used in HVAC applications.
It is widely used to give an alarm in case of insufficient flow of air and non-aggressive gases in pipes and ducts (safety switch).
It is operated by means of a microswitch when receiving the air pressure by means of a blade of stainless steel
Case: ABS color white
Material Lever: Brass
Material paddel: Stainless
Maximum fluid temperature: -10. . . + 85 ° C
Humidity of charge HR: 10. . .95% RH, non-condensing
Working temperature: -40. . . + 85 ° C
Protection class: IP65 – Class III
Switch Type: Potential free SPDT, 8A 260 Vac
Service life: 50,000 cycles at nominal load
Measure paddel: 175×80
Always on horizontal position of the pipe. The paddel must be perpendicular to the air flow, and in the direction indicated by the arrow.
Red and yellow: connected when flow to indicated values.
Before any manipulation, disconnect from the power supply.
Air flow switch
Min. paddel adjustment (series)
Max. paddel adjustment (adjustable)
Min. disconnect. value m/s
Min. connection value m/s
Max. disconnect. value m/s
Max. connection value m/s
Maximum temperature fluid ºC