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General Purpose Industrial Differential Pressure Switch

0 to 6 psi, fixed deadband


Item# PSW-151

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-24 $948.16
25-49 $900.75
50-99 $881.79
100-199 $843.86
200+ $824.90

In stock

Lead Time (If not in stock): 6 weeks
0 to 6 psi, fixed deadband PSW-151 PSW-151
  • UL Listed
  • 15 Amp SPDT
  • Easy Adjustments
  • Vibration-Resistant Setpoints

PSW-151 Model Options

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*Highlighted options are not compatible. Please select a different combination.

Pressure Range
Switch Type
Pressure Type
Pressure Port Size
Pressure Port Type

  • Connection Gender Female
  • Maximum Ambient Temperature 70 {C} (158 {F})
  • Maximum Rating 15
  • Maximum Storage Temperature 75 {C
  • Minimum Ambient Temperature -40 {C} (-40 {F})
  • Minimum Storage Temperature -55 {C} (-67 {F})
  • Pressure Type Differential
  • Pressure Units PSID
  • repeatability ±1% range
  • Shock Setpoint repeats after 15 g at 10 ms duration
  • Vibration Setpoint repeats after 2.5 g at 5 to 500 Hz
PSW-150 Series differential switches are ideally suited for laboratory and industrial applications where a rugged, repeatable, and dependable switch is required. For ease of installation, ports are tagged high and low, and the setpoint adjusts over the entire range.

Approvals: UL listed
Repeatability: ±1% range
Ambient Switch Shift: 0.04% range/°C
Storage Temperature: -55 to 75 °C (-67 to 167°F)
Ambient Switch Temp: -40 to 70°C (-40 to 158°F)
Process Temp: Brass and phosphor bronze: 120°C (248°F); 316SS: 260°C (500°F)
Shock: Setpoint repeats after 15 g at 10 ms duration
Vibration: setpoint repeats after 2.5 g at 5 to 500 Hz
Output: (1) SPDT, 15 Amp 125/250/480 Vac
Enclosure: Cast aluminum, gray enamel finish
Electrical: 22 mm (7/8') dia. conduit port, screw terminals
Pressure Port: 1/4 NPT Female
Weight: 0.9 kg (2 lb)
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Does the DP switch require a snubber to be installed on the water connection? How would one determine that a snubber is required in design and application?

Asked by: Kenny M
Thank you for your inquiry, a snubber is not required for this unit.
Answered by: rkent
Date published: 2022-10-31

Are these SPDT or DPDT?

Asked by: Matt from engineering
All PSW-150 Series pressure switches have SPDT switches. Error on our website part builder indicating DPDT is being corrected.
Answered by: Applicatrions Engineer JK
Date published: 2022-06-02

Is there a drawing available for this part, that shows the screw terminals?

Asked by: jpvance
Thank you for your inquiry, the only drawings that we offer are the dimensional drawings on the Datasheet.
Answered by: rkent
Date published: 2022-04-29
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