Solar Water Pump
Power Range: 3HP - 30HP (2200W - 22000W)
Core Technology: MPPT (Maximum Power Point Tracking) technology
Motor Compatibility: Submersible BLDC/PMSM motors (water-filled, encapsulated)
Voltage Range: 60-450VDC / 200-800VDC, 150-240VAC
Performance Parameters: Max head: 400m; Max flow rate: 115m³/h
- Introduction
- Main features
- Advantages
- Recommended
Product Introduction
This off-grid solar water pump controller (3HP-30HP) is designed for reliable water supply in remote and agricultural areas. Its core working principle: Solar panels generate DC power, which the controller optimizes through MPPT (Maximum Power Point Tracking) technology to maximize energy utilization (up to 98% efficiency). The optimized power drives submersible or surface BLDC/PMSM motors, pumping water from wells, boreholes, lakes, or ponds to irrigation fields, water tanks, or living areas. It operates independently of the grid, with intelligent control and protection functions to ensure stable, low-maintenance operation.


Main features
| Features | Key Details |
| Power Range | 3HP - 30HP (2200W - 22000W) |
| Core Technology | MPPT (Maximum Power Point Tracking) technology |
| Motor Compatibility | Submersible BLDC/PMSM motors (water-filled, encapsulated) |
| Voltage Range | 60-450VDC / 200-800VDC, 150-240VAC |
| Performance Parameters | Max head: 400m; Max flow rate: 115m³/h |
| Controller Type | External (installed in ground-mounted weatherproof cabinet) |
| Protection Functions | Overheating, overcurrent, undervoltage, overvoltage, short circuit, dry running (low water level) |
| Design & Materials | 304 stainless steel shaft/connectors; Silicon carbide + graphite mechanical seal; Japan NSK bearings |
| Waterproof Rating | IP65 (controller) |
| Operating Temperature | -15℃ to +60℃ |
| Control Modes | Automatic speed regulation, manual control; Soft start (prevents surge current) |
| Display | LED display (voltage, current, power, speed) |
| Certifications | ISO/CE/RoHS certified |
| Installation & Upgrade | Easy maintenance (no need to remove the pump from the well); Upgradable with VSD (Variable Speed Drive) |
| Compatibility | Works with 3-wire submersible pumps (no built-in start capacitor); Supports solar-grid hybrid models (auto-switching) |




Advantages
| Advantage | Specific Benefits |
| Off-Grid Independence | No reliance on the power grid; Suitable for remote areas without infrastructure |
| High Efficiency | 15-20% higher energy utilization; Reduces solar panel costs |
| Low Operating Costs | Solar-powered (zero fuel costs); Minimal maintenance requirements |
| Durability & Reliability | Weatherproof design; Corrosion-resistant parts; High-temperature resistant motor (up to 150℃) |
| Environmental Friendliness | Reduces carbon footprint; Clean energy solution |
| Versatile Applications | Agricultural irrigation (drip/spray/flood), domestic water supply, livestock watering, community water projects |
| 24/7 Water Supply | Compatible with water tanks for round-the-clock supply (even in low sunlight) |
| User-Friendly | Fully automatic operation (auto start/stop); No manual supervision needed |
| Safety | Multiple protection functions; Leak-free motor (safer operation) |
| Support & Warranty | 2-year warranty; 24-hour after-sales support; Online training & installation assistance |