P1H Series

  • Superior resolution
  • High reliability
  • Oil & dust tight
  • Extremely versatile
  • NEMA 4 & 13
  • CSA approved
  • Diaphragm Seal Option Available
Barksdale's P1H Series Pressure Switches offer extremely long life and the accuracy you need for your industrial applications. Designed with Dia-Seal Piston technology, the P1H Series Pressure Switches ensure millions of maintenance free, leakage free cycles. A rugged, NEMA 4 enclosure makes these pressure switches an ideal choice for both indoor and outdoor installations. Setpoints are easily adjusted via an external adjustment screw. Designed to control pressures up to 1600 psi, the P1H Series Pressure Switches are an outstanding choice for your demanding industrial applications.


General Specifications*

Electrical Characteristics: All models incorporate Underwriters Laboratories, Inc. and CSA Listed single pole double throw snap-action switching elements
Accuracy: ± 2% of the adjustable range
Switch: Single pole double throw (SPDT) snap action; single circuit (see order key for ratings)
Wetted Parts:
Process Fitting:
Anodized aluminum (standard)
Anodized aluminum
Electrical Connection: Internal screw terminals via 1/2″ NPT conduit connector
Enclosure Ratings: NEMA 4, 13
Pressure Connection: 1/4″ NPT female (standard)
PED (European):
Class 3231 02, File No. LR22355
Compliant to PED 97/23/EC
Temperature Range:
-20° to +165°F (-29° to +74°C)
-40° to +200°F (-40° to +93°C)
Adjustment Instructions: Loosen setscrew with a #10 allen wrench. With screwdriver, turn adjustment screw clockwise to increase and counterclock wise to decrease the actuation point. Tighten setscrew after desired setting is reached.
Options: – NEMA 4X
– Hermetically sealed limit switch
– Cleaned for oxygen service
– Factory preset
– CSA approval
Shipping Weight: 3.75 lbs. approximate
* See product confi gurator for additional options.


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