Direct Mount Pressure Switch
Direct Mount Pressure Switch


  • Limit switch for critical pressure
  • Operate alarm or shutdown equipment
  • SPDT snap-acting switch
  • Fits most engine applications





The PSB switch is a direct mount switch for critical pressure points. It has one limit contact that can be used to activate an alarm, actuate indicator lights or shutdown equipment.




The construction of this instrument is the same as our time-proven Swichgage® instrument. A precision machined brass mounting plate and port captures a high quality stamped beryllium copper diaphragm. The single-pole, double-throw (SPDT) snap-switch is operated directly from the diaphragm for quick acting and positive switching. Trip point is factory preset according to your specifications.


Housing is weather sealed to prevent entry of moisture, dust, etc. A glass-filled nylon terminal block with quick screw terminal connections gives the PSB switch a real advantage in industrial engine applications. The PSB is ideal when reading is not desired, but pressure is critical to operational efficiency. Intended for use in general purpose nonclassified areas.





  • Engine Lubrication
  • Water pumps
  • Compressors
  • Oil field systems
  • Irrigation systems
  • Construction Equipment
  • Light-duty Mobile Equipment
  • Marine engines
  • Generators
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