This Square D pumptrol FHG12J52XBP air-compressor pressure switch is the most trusted brand in residential, commercial and industrial air compressor applications. For over 75 years, Square D pressure switches continue to meet the needs of our customers. The FHG12J52XCP controls an electrically driven air compressor in a power circuit when the adjustable threshold upon falling is reached and is set to turn off at 125 PSI. The switch has a 1/4 inch NPSF internal fluid connection and is suitable for use with a lower-horsepower motor with 1.5 HP or less. The non-adjustable differential is 30 PSI and the adjustable cut-out range is 70 PSI to 150 PSI. The switch is diaphragm actuated and has a fixed differential. The threshold or setting point, upon rising adjusts with a screw nut. The switch has screw terminal electrical connections and two 2-pole NC contacts open on rising pressure.
Suitable for control of small electrically driven air compressors
Standard-action contacts open on rising pressure
For use with air only, fixed differential turns off at 125 PSI
Universally accepted and recognized design is easy to wire, features drift proof cut-in and cut-out settings and has visible vertical contacts which are easy to inspect