• Compact size
  • Stripped and housed versions available
  • Easy setpoint adjustment
  • High reliability
  • NEMA 1 & 4

The MSPS and MSPH Series Pressure Switches offer reliable, trouble-free performance in a compact, economical package. Available in both stripped and housed models, this switch can reliably measure and control pressures up to 100 psi. A variety of limit switches are available to accommodate up to 20 Amps of switching current at 125 VAC. With its UL and CSA listings, this switch is an ideal choice for use in pool & spa heaters. A wide range of available options allow the MSPS and MSPH Series Pressure Switches to be easily adapted for general industrial use. For low-pressure applications requiring a highly economical solution, use Barksdale MSPS and MSPH Series Pressure Switches.


General Specifications*

Electrical Characteristics: All models incorporate Underwriters Laboratories, Inc. listed single pole double throw or single pole single throw snap-action switching elements.
Accuracy: +/- 2.0% of the adjustable range
Switch: See table below
Wetted Parts:
Process Fitting:
Seals & Diaphragms:
304 stainless steel (standard)
Buna-N (standard)
Anodized aluminum base plate; Polysulfone housing
Electrical Connection: .250″ wide x .032″ thick quick connect terminals (via 1/2″ NPT conduit connector on housed models)
Enclosure Ratings: Housed models: NEMA 4
Stripped models: NEMA 1
Pressure Connection: 1/8″ NPT male (standard)


PED (European):

MSPS models shown are UL recognized components under industrial control equipment, motor controllers, float and pressure operated (NKPZ2) files E42816.

MSPS models are CSA certified under Class 3231 02, File LR22355.

Compliant to PED 97/23/EC

Temperature Range:
+20° to +165°F (-7° to +74°C)
Adjustment Instructions: Turn adjustment nut clockwise to increase and counterclock wise to decrease the set point.
Options: -FDA approved diaphragm
-Oxygen cleaning
-Factory preset
-NSF approved switch
Shipping Weight:
Housed Versions:
Stripped Versions:
0.5 lb. approximate
0.25 lb. approximate
* See product confi gurator for additional options.

Electrical Rating

Limit Switch
Maximum Continuous
Current (Amps)
EE, FF 125/250 VAC 3
MM 125/250 VAC 25
DD, JJ 125/250 VAC 15
DD, JJ 125 VDC 0.5
250 VDC 0.25


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