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SunRotor SR-4 Helical Rotor Pump
SR-4 P/M/C M50T

SR-4 Pump & Controller


We have paired the SR-4 Helical Rotor Solar Pump with the SRC-M50T Controller to offer you a simple, one-click option of purchasing this pumping system. Please view the PDF listed below to see what this powerful pair can do for you!

• Nominal 24 volt operation
• Usable voltage range 12-48 volts
• Power range 195 watts to 390 watts
• Solar, battery or a combination
• Maximum functional lift capability of 150 ft (46 m)
• Max flow at 100 ft (30 m) is 4 gallons/min (15.14 liters/min)
• Highly reliable, single moving part progressive cavity technology
• Readily repairable in the field
• 3/4 inch FNPT output
• Submersion limit of 100 ft below static water level (ex: 100 ft submersion + 50 ft static water level: 150 ft)
• 19 inches in height (48.3 cm)
• 3 inch diameter (76 mm) fits 3.5 inch (89 mm) casing
• Light weight - 12 pounds (5.4 kg)
• Submersible motor protected from ambient water by oil filled jacket (food grade oil protects potable water source if vessel is compromised)
• Brushless DC motor technology avoids conventional DC brush maintenance and replacement
• All electronics are mounted above ground for longer life and easy access
• Entire pump body is stainless steel to comply with all local code and pump installation requirements
• CE certified
• ISO 9001

SunRotor Submersible Pump Diagram

  1. PV Panel Array
  2. Solar Module Mounting Rack
  3. Water Pipe
  4. Well Seal Assembly
  5. Low Water Sensor
  6. Submersible Pump
  7. Conduit and Wiring Harness from Controller to Well Seal
  8. Wiring Harness from Controller to Solar Modules
  9. DC Input Controller
  10. Tank Full Tethered Float Switch and Weight
  11. Anti-freeze Bleeder Valve
  12. Check Valve

If you need assistance in sizing a solar power system, you can download our solar power pumping system sizing guide, click here to request a quote, or contact us at 1-866-246-7652 and let one of our sales representatives design a custom system to meet your water pumping needs.