Skip to main content
Press Enter
Winters Instruments

3WPS Vacuum and Low Pressure Switch

General Purpose, watertight pressure switch

Have questions? We're here to help!
Have questions? We're here to help!

 General Purpose, watertight pressure switch

• General Purpose, watertight pressure switch 
• Vacuum pressure to 10 psi 
• High current ratings for 1 x SPDT or 2 x SPDT switches 
• Fixed deadband 
• Die cast aluminum construction with welded seal 
• 1% accuracy 
• NEMA 4 & 4X, IP66 rated 
• cRU recognized (switch only), fi le no E12252 
• CRN registration pending 
• 5 year warranty Applications:
HousingHeavy-duty die-cast aluminum, blue colour
Accuracy+/- 1% of the adjustable set-point range
Pressure Connection1/2” NPT, BSP and M20xP1.5
Electrical ConnectionFemale 1/2” or 3/4” NPT, M20xP1.5
Wetted Parts316 Stainless Steel welded (except for Vacuum range, Viton o-ring)
Set Point AdjustmentField selectable
DeadbandFixed, see Order Codes
Contact Rating15A @ 125/250VAC
0.4A @ 125VDC
3A @ 30VDC
Gold contact microswitch 1A @ 125/250VAC
No. of Contacts1 x SPDT or 2 x SPDT
Ambient/Process Temperature-30 to 205 deg C (-22 to 400 deg F), Vacuum range only -5 to 150 deg C (23 to 300 deg F)
Enclosure RatingNEMA 4 & 4X, IP66
Protection against liquid and solid ingress, suitable for indoor or outdoor use and resistant to corrosion
ApprovalscRU recognized, file #E12252 (switch only)
CRN registration pending
Weight3.35 lbs (1.52 kg)

 • Suitable for pump and compressor monitoring, HVAC systems and general industrial applications

  • Thumbnail of document Data Sheet - 3WPS Vacuum and Low Pressure Switch
    Download

    Data Sheet - 3WPS Vacuum and Low Pressure Switch

    Download

Request a Calibration Quote

We’re here to make calibration easy. Request a quote today and let our team give you the care, precision, and service you can trust.
Learn more

Browse By Brands

Uncover the brands that set the standard for quality and dependability in every industry we serve.
Learn more