EN
Internal Controller Off Grid Solar Water Pump 0.3HP-3HP
Maximum Power: 3 HP
Maximum Lift: 325 m
Maximum Flow Rate: 49.6 m³/h
Operating Voltage: 60-450 V DC, 150-240 V AC
Motor Type: Submersible BLDC/PMSM
- Introduction
- Main features
- Specifications
- Recommended
Product Introduction
The pump is available in models ranging from 0.3 to 3 horsepower, delivering strong water flow and high head performance, making it an ideal choice for small household use and medium-sized agricultural applications where reliable water supply is crucial.
Working principle：
The off-grid solar submersible pump operates entirely on solar energy, requiring no grid electricity or fuel. It utilizes the electricity generated by a solar panel array to power a highly efficient, water-filled brushless DC motor submerged in wells, boreholes, or ponds. The motor drives an impeller or propeller to lift water to the surface, providing a reliable, eco-friendly, and cost-effective water supply for off-grid or remote households, farms, livestock, and irrigation.
Main features
Advanced motor and winding system
• The magnetic material is 40SH aluminum iron boron, with excellent high-temperature resistance, up to 150°C.
• The stator and rotor are made of cold-rolled silicon steel sheets, with low loss and vibration.
• 180°C copper enameled wire, insulation class F.
Premium Materials Construction
• 304 stainless steel shaft prevents breakage and corrosion.
• 304 stainless steel shaft prevents breakage and corrosion.
• Exports, connections, and cylinders are made of 304 stainless steel or copper components.
• Silicon carbide + graphite mechanical seal ensures high reliability and long service life.
• Japanese NSK bearings reduce friction and enhance axial load capacity.
• Dual-bearing rotor support provides higher stability under deep lifting conditions.
Advantages：
• High-Efficiency BLDC Motor: 15–20% higher energy efficiency, reduced solar panel costs；
• Encapsulated Water-Filled Motor: No oil leaks, longer lifespan, safer operation；
• Wide Voltage and Head Range: Suitable for different well depths and solar installations；
• Intelligent Controller with Protection Features: Idle, over current, over voltage, and temperature protection；
• Stainless Steel Body and Corrosion-Resistant Components: Durable in harsh environments；
• Fully Automatic, No Operator Required: Set and forget — minimal maintenance required.
Application：
• Domestic and community water supply.
• Agricultural irrigation for crops, greenhouses, and farms.
• Livestock drinking water systems in rural areas.
• Deep wells and boreholes for continuous water extraction.
Installation & Debugging
• Provide safety cables (stainless steel) and recommended polyethylene tubing.
• Confirm the borehole/well diameter and safe drop length.
• Install the external controller in a weatherproof box with shading (IP65 recommended).
• Connect the solar panel according to the controller's voltage/current recommendations.
• Perform a dry run and verify the controller display values (voltage/amps/watts).
• Connect the solar panel according to the controller's voltage/current recommendations.
Specifications
0.3HP-3HP
Maximum Power: 3 HP
Maximum Lift: 325 m
Maximum Flow Rate: 49.6 m³/h
Operating Voltage: 60-450 V DC, 150-240 V AC
Motor Type: Submersible BLDC/PMSM
Certification: ISO/CE/RoHS Certified
Permanent magnet Brushless DC motor
• Efficient synchronous design with performance improvement up to 20%.
• Reduces energy consumption and minimizes the number of solar panels required.
• Stable power output, soft-start control, and long service life.
