Cleveland Controls Model AFS-460
Model AFS-460 Air Pressure sensing switch is a general purpose proving switch designed to require manual operator reset following actuation. It can be used to sense positive, negative or differential air pressure in HVAC and Energy Management applications which require operator interface.
The plated housing contains a diaphragm, a calibration spring and a snap-acting SPST-NC switch with manual reset button. The sample connections located on each side of the diaphragm accept 1/4" OD metallic tubing via the integral compression ferrule and nut. An enclosure cover protects the operator from accidental contact with the live switch terminal screws and the set point adjusting screw. The enclosure cover will accept a 1/2" conduit connection.
This product is available at Grainger as part number 3ZM94 for $37.40.
Note: Refer to Cleveland Controls website for complete specifications: http:// /CC%20PDFs/AFS460.pdf
