Rocksolar 3.75HP 60-450V Solar DC Brushless water transfer Pump Kit
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Description
Description
ROCKSOLAR 3.75HP Solar DC Brushless Water Transfer Pump Kit
What's included:
- 1 × 3.75HP 60–450V DC brushless water transfer pump + MPPT controller
- 10 × 440W rigid monocrystalline bifacial solar panels (4,400W array)
- 10 ft 10 AWG PV cable
- 1 × 2-string waterproof DC disconnect box with 1000V 40A circuit breaker
- Mounting brackets for solar panels (optional)
- Ground or roof mount rack (optional)
- User manuals + warranty card
Key specs:
- Motor: 3.75HP DC brushless | Rated power: 2,800W
- Input: 60–450V DC (optimal range: 300–380V)
- Max flow rate: 268 GPM (at minimum head) | Max head: 82 ft
- Outlet: 3" diameter
- Solar array: 10 × 440W bifacial panels (4,400W)
Built for: Large farms, commercial irrigation, large livestock operations, municipal water transfer, ponds and water features, high-volume off-grid water supply
Key features:
- 268 GPM max flow — highest in the DC transfer pump lineup by a wide margin, moves large volumes fast
- 2,800W brushless motor with wide 60–450V input (optimal 300–380V) = designed for large multi-panel string configurations
- 3" inlet/outlet — commercial-grade plumbing connections for high-volume throughput
- MPPT controller — auto-adjusts to available sunlight, stops and restarts without intervention
- Float switch / pressure switch compatible — automates fill/shutoff for large tanks and troughs
- Dry-run auto protection — shuts off if water supply is interrupted
- Customers report significant reductions in fuel and maintenance costs vs. diesel pump alternatives
How the System Works
The ROCKSOLAR Solar Powered Water Pump System converts solar energy into a reliable water supply for livestock watering, irrigation, and remote agricultural applications.
The operating sequence is as follows:
- Solar panels convert sunlight into direct current (DC) electricity.
- The solar pump controller continuously monitors the available solar power and adjusts the voltage and current to maximize energy harvest from the solar array.
- The controller supplies optimized DC power to the brushless submersible pump, ensuring efficient operation under varying sunlight conditions.
- The pump draws water with its intake pipeline from the well, pond, cistern, stream, river or other approved water source and delivers it through the discharge pipeline.
- Depending on the application:
- Livestock Watering: Water is pumped into a storage tank or watering trough. When an optional float switch is installed, the controller automatically stops the pump once the tank reaches the preset water level and restarts pumping when the water level drops.
- Agricultural Irrigation: Water is supplied to irrigation systems such as drip irrigation, sprinkler systems, soaker hoses, or storage reservoirs for crop, orchard, greenhouse, vineyard, pasture, and garden irrigation. Flow can be controlled using irrigation valves, timers, or storage tanks based on the specific irrigation design.
- During periods of insufficient sunlight, such as early morning, late evening, or heavy cloud cover, the controller automatically reduces pump speed or stops the pump to protect the system and optimize energy use.
- When adequate sunlight returns, the controller automatically restarts the pump without requiring manual intervention.
This intelligent, fully automatic operation minimizes maintenance while providing a dependable and sustainable water supply for livestock, irrigation, and other off-grid agricultural applications.
SPECIFICATIONS
SPECIFICATIONS
| Pump Specification | Details |
|---|---|
| Product | ROCKSOLAR 2800W Solar Transfer Water Pump |
| Motor Type | High-Efficiency Brushless DC Motor (BLDC) |
| Controller | External with Maximum Power Point Tracking (MPPT) Technology |
| Power | 2800W |
| Voltage Range | 60-450V DC |
| Max Head | 82 Feet |
| Max Flow Rate | 268 GPM at minimum head. |
| Pump Diameter | 2 inches |
| Pump Outlet | 2 inches |
| Protections | Dry Run, Overload, Overvoltage, Low Voltage |
| Ingress Protection | IP54 Rated (Pump), IP65 Rated (Controller) |
| System Installation Distance | Controller to Motor: Up to 80 meters |
| Warranty | 5 Years |
| 440W Rigid Monocrystalline Bifacial Solar Panel | Details |
|---|---|
| Panel Type | Monocrystalline PERC |
| Power Output | 440W |
| Max Power Current | 13.36A |
| Max Power Volt | 32.98V |
| Max Series Fuse(A) | 30A |
| Cell Efficiency | 21.06% |
| Frame Material | Anodized Aluminum Alloy |
| Dimensions | 2094mm x 1134mm x 35mm (82.44" x 44.65" x 1.38") |
| Weight | 25.3 kg (52.78 lbs) |
| Operating Temperature | -40°C to +85°C |
| Waterproof Rating | IP68 (Junction Box) |
| Front Glass | 3.2mm Tempered, Anti-Reflective, Low-Iron Glass |
| Bypass Diodes | Integrated |
| Connectors | MC4 - EVO2 |
| Cable Length | 300 mm / 1200 mm (customizable) |
| Mounting Hole Locations | Pre-drilled |
| Service Life | 25 years or more |
| Warranty | 15 years product quality and process guarantee |
INCLUDES
INCLUDES
Datasheet & User Manual
Datasheet & User Manual
Payment & Security
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