Water Pressure Switch · 30/50 PSI · NEMA 1 Enclosure · Eaton CHWPS3050D
30/50 PSI water pressure switch for automatic control of well pump cut-in and cut-out pressure in residential and light commercial water systems. CSA Certified and UL Listed, this NEMA 1 switch is commonly used where steady pump cycling and consistent water pressure are required.
What this product is for
The Eaton CHWPS3050D is a water pressure switch used to start and stop a well pump at preset pressure points of 30 PSI cut-in and 50 PSI cut-out. It is intended for residential and light commercial water systems where automatic pump control is needed to maintain usable system pressure.
Use for
Use for well water systems, pressure tank setups, and pump control applications that require a standard 30/50 PSI operating range. This type of switch is commonly selected for homes, cottages, farms, and small buildings using a pressure tank and pump.
Avoid for
Avoid for outdoor wet locations unless installed in a suitable protective enclosure, and avoid applications requiring a different pressure range or a higher enclosure rating. Do not assume compatibility with every pump motor without confirming electrical ratings and control requirements.
Best for
Best for replacement of an existing 30/50 PSI well pump pressure switch where a NEMA 1 indoor enclosure is acceptable. It is also a practical choice when matching common residential pressure tank settings and standard pump control arrangements.
Installed in
Typically installed at the pressure tank manifold or tank tee on indoor well system piping. Product dimensions are approximately 3.93 in x 2.95 in x 4.13 in (100 x 75 x 105 mm), which helps when checking clearance in compact pump or tank areas.
Why this product exists
This switch automates pump operation so the pump turns on when system pressure drops and turns off when pressure recovers. In typical well systems, that helps reduce manual intervention and maintain more consistent water delivery to fixtures and appliances.
Typical field guidance: pressure tank pre-charge is commonly set to about 2 PSI below cut-in pressure, which would be approximately 28 PSI for a 30/50 PSI switch. Actual performance depends on tank condition, installation, system layout, and local code.
Compared with similar products
Compared with a 40/60 PSI switch, a 30/50 PSI switch generally provides a lower operating pressure range and may better match existing residential systems designed around that setting. This model is identified by Eaton as a water pressure switch with NEMA 1 enclosure construction and certifications for CSA and UL.
Specifications
- Manufacturer: Eaton
- Manufacturer part number: CHWPS3050D
- Product type: Water pressure switch
- Pressure setting: 30/50 PSI
- Enclosure rating: NEMA 1
- Certifications: CSA Certified, UL Listed
- Dimensions: 3.93 in L x 2.95 in W x 4.13 in H (100 x 75 x 105 mm approx.)
- Weight: 0.95 lb (0.43 kg approx.)
- Warranty: 3 year
- UPC: 782116159215
- Dimensions3.93 in L x 2.95 in W x 4.13 in H (100 x 75 x 105 mm approx.)
- ApprovalsCSA Certified, UL Listed
- Enclosure RatingNEMA 1
- Weight0.95 lb (0.43 kg approx.)
- Warranty3 year
- Upc7.82E+11
- BrandsEaton
- Stock in Elmira2
- Stock in Flesherton1
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