The air flow switches are designed for monitoring flow rates in pipes and ducts employed in HVAC applications. The S6040A1003 Air Flow Switch monitors air flow and the flow of non-aggressive gases in the air ducts of air conditioning systems and air treatment systems. This air flow which (with separate paddle) is mounted in the vertical position (i.e. with the switch box at the top). Necessary flow smoothing distance: min. five times the diameter of duct before and behind the switch! The device must be mounted with the package-included seal plate through an approx. 20-mm hole in the duct. The device must be fixed with two package-included screws. The paddle must
then be mounted with a screw on the shaft inside of the duct.

• Cost-effective switches for HVAC applications
• High-capacity, fully-encapsulated NC/NO micro-switch
• A single type suitable for pipes with a diameter of 1 to 8 inch