30-50 Lbs. Standard Cut-Off Switch

Campbell 30-50 PSI Pressure Switch – Precision Control for Water Pump Systems

The Campbell 30-50 PSI Pressure Switch is engineered to regulate electric water pumps with dependable on/off operation. Designed to maintain system pressure within a controlled range, this switch helps protect pump components from overcycling and excessive wear. It’s a core component for private well systems, irrigation setups, and pressure-boosting applications that require reliable performance over time.

Key Features

• Factory Set at 30/50 PSI: Activates the pump at 30 PSI and shuts it off at 50 PSI, maintaining consistent system pressure.
• Heavy-Duty Contacts: Built to handle the electrical demands of residential and light commercial pumps with minimal arc wear.
• Threaded Connection: Features a 1/4" NPSF internal port for direct mounting to system manifolds or pump tees.
• Durable Construction: Corrosion-resistant housing and internal components ensure long-term reliability in wet environments.
• Compatible with 460/575 VAC Systems: Rated for high-voltage applications with appropriate pump and motor controls.

Technical Specifications

• Pressure Range: 30 PSI cut-in / 50 PSI cut-out
• Connection Size: 1/4" NPSF (Female Thread)
• Electrical Rating: Up to 460/575 VAC
• Contact Configuration: Standard 2-pole
• Applications: Jet pumps, submersible pumps, booster systems
• Enclosure: NEMA Type 1

Installation & Application Notes

This switch is typically installed at the tank tee or on a manifold near the pressure tank. Installation should be performed by a licensed professional to ensure proper grounding, electrical connections, and pressure calibration. Thread sealant or Teflon tape should be used on the male pipe thread to prevent leaks. The switch should be protected from direct exposure to the elements if installed outdoors.

Professional Use Cases

• Private well systems requiring automatic pump control
• Irrigation systems with pressurized lines
• Residential or light commercial booster applications
• Replacement for existing 30/50 pressure switches

Contractor Benefits

This Campbell pressure switch provides field-proven reliability in demanding pump control applications. It’s a trusted component for maintaining system efficiency, extending pump life, and minimizing nuisance cycling. With proper installation, this switch offers consistent performance with minimal maintenance required.