The store will not work correctly when cookies are disabled.
Join the Aqua Science Insiders Club
41 years of Expertise in Engineered Water Treatment and Well SystemsPrice Match GuaranteeLifetime WarrantyThe Largest Selection of Residential Filtration SystemsWell Water Components and SuppliesReplaceable FiltersComplete Water TestingIndustry’s Best BrandsExcellent Tech SupportWater Treatment ChemicalsCustom solutions designed to address your specific needsMost products ship the same day
WellZone™ 3W-300 3-Wire 3 HP 230V Pump Controller | Aqua Science
The WellZone 3W-300 Pressure Controller is the ultimate solution for efficient and reliable control of your well pump system. Designed to operate and protect single-phase 3-wire submersible well pumps up to 3 HP, this controller ensures stable water pressure by automatically starting and stopping the pump based on system pressure.
Operates on 230V single-phase power (60 Hz) specifically for 3-wire well pump systems.
Compatible with 3-HP 230V 3-wire submersible well pumps with a maximum rating of about 17 service factor amps (SFA).
Includes a 0–150 PSI pressure transducer with a 1/4-inch NPT connection and a 5-meter cable for accurate pressure monitoring.
Pre-programmed to start the pump around 40 PSI and stop at about 60 PSI, with adjustable settings.
Built-in LCD display provides system information including current system pressure, pump run status, pump run hours, and pump cycle count.
Features several protection mechanisms such as dry run protection, rapid cycle protection, high and low pressure alarms, and an auxiliary alarm relay.
Housed in a NEMA 4X weather-resistant thermoplastic enclosure, suitable for both indoor and outdoor installations.
Includes AquaScience 8% Crosslink Resin for enhanced performance.
Frequently Asked Questions:
What is the WellZone 3W-300 pressure controller used for?
The WellZone 3W-300 is a digital pressure controller designed to operate and protect single-phase 3-wire submersible well pumps up to 3 HP. It automatically starts and stops the pump based on system pressure to maintain stable water pressure.
What voltage does the WellZone 3W-300 operate on?
This controller operates on 230V single-phase power (60 Hz) and is designed specifically for 3-wire well pump systems.
What pump size is compatible with the WellZone 3W-300?
The controller is designed for 3-HP 230V 3-wire submersible well pumps with a maximum rating of about 17 service factor amps (SFA).
Does the controller include a pressure sensor?
Yes. The unit includes a 0–150 PSI pressure transducer with a 1/4-inch NPT connection and a 5-meter cable for accurate pressure monitoring.
What are the default pressure settings?
The controller is typically pre-programmed to start the pump around 40 PSI and stop at about 60 PSI, though the settings can be adjusted to match your system requirements.
What information does the LCD display show?
The built-in LCD display provides important system information including current system pressure, pump run status, pump run hours, and pump cycle count, helping monitor the performance of the well pump system.
Does the WellZone 3W-300 include pump protection features?
Yes, the controller includes several protection features such as dry run protection, rapid cycle protection, high and low pressure alarms, and an auxiliary alarm relay, helping protect the pump and extend its lifespan.
Is the controller suitable for outdoor installation?
Yes. The controller comes in a NEMA 4X weather-resistant thermoplastic enclosure, making it suitable for both indoor and outdoor installations.
The WellZone 3W-300 is a digital pressure controller for single-phase 3-wire submersible well pump applications. It uses a 0-150 PSI pressure transducer to monitor discharge pressure and automatically turns the pump on and off at adjustable start and stop setpoints. The LCD display provides a quick view of system pressure, run status, hours run, and pump cycles, while built-in protection features include rapid cycling and dry run protection.
Validate your login