Lead Pump SD Deep Well Solar Submersible Pumps AC/DC Powered are top-pick pumping equipment for bulk procurement amid surging global demand for eco-friendly water infrastructure. Solar pumping systems now underpin modern farm irrigation, rural water supply and off-grid water projects, and this dual-power submersible pump stands out for unmatched versatility and stability. Independently manufactured by Lead Pump, the series integrates high-efficiency brushless DC motors and flexible AC/DC switching, forming a heavy-duty solution for deep well water pumping across all working environments.
The SD Deep Well Solar Submersible Pumps AC DC Powered is a 3-inch borehole submersible pump designed to operate on both AC (grid electricity) and DC (solar photovoltaic) power sources. Equipped with a built-in MPPT (Maximum Power Point Tracking) intelligent controller, the pump automatically prioritizes solar energy while seamlessly switching to AC power when solar input is insufficient. This hybrid design ensures 24/7 water availability without the need for battery banks, significantly reducing system cost and maintenance.
A representative model — the 3SD4.5-126-150-1100-A/D — delivers a maximum flow of 4.5 m³/h and a maximum head of 126 meters, powered by a 1100W brushless motor. This makes it ideal for deep wells, boreholes, reservoirs, and irrigation systems.
The pump's intelligent controller supports three operating modes: DC-only (solar), AC-only (grid), and AC+DC hybrid (solar primary, grid complementary). The wide DC voltage range (80–430V) and AC voltage range (150–264V) ensure compatibility with diverse solar panel configurations and local grid standards worldwide.
Unlike traditional brushed motors, the brushless DC permanent magnet motor delivers higher efficiency, lower noise, and zero maintenance over its lifespan. The oil-filled cooling design ensures stable operation even under continuous heavy load. Motor housing and propeller are constructed from SUS304 stainless steel, while the impeller uses high-strength PPO material for corrosion resistance and durability.
The integrated MPPT algorithm achieves solar energy utilization rates of up to 70%, automatically tracking the maximum power point of the photovoltaic array as sunlight conditions change. This translates to more water pumped per solar panel watt compared to conventional pump controllers.
The pump and controller are equipped with multiple protection features: dry-run protection (well probe input), overload protection, over-temperature protection, reverse polarity protection, and low-voltage disconnect for battery tracking. The controller housing meets IP66 or IP67 waterproof standards depending on the model.
For users requiring advanced management, the remote-control hybrid controller supports a mobile app with SIM card integration. Operators can remotely start/stop the pump, set timing schedules, and monitor real-time data including power consumption, motor speed, current, and voltage — all from a smartphone.
|
Model |
Power (W) |
Max Flow (m³/h) |
Max Head (m) |
Outlet |
Voltage Range |
|
3SD4.5-126-150-1100-A/D |
1100 |
4.5 |
126 |
1.25" |
DC80-420V / AC85-280V |
|
4SD5.5-72-110-750-A/D |
750 |
5.5 |
72 |
1.25" |
DC80-420V / AC85-280V |
|
4SD7.5-60-110-750-A/D |
750 |
7.5 |
60 |
1.25" |
DC80-420V / AC85-280V |
|
4SD11-38-110-750-A/D |
750 |
11 |
38 |
1.5" |
DC80-420V / AC85-280V |
|
4SD5.5-108-150-1100-A/D |
1100 |
5.5 |
108 |
1.25" |
DC80-420V / AC85-280V |
|
4SD7.5-85-150-1300-A/D |
1300 |
7.5 |
85 |
1.25" |
DC80-420V / AC85-280V |
Lead Pump offers four controller grades to match different budgets and requirements:
• Mini Auto Switch Controller: Basic LED display, MPPT, separate AC/DC mode, IP66
• Auto Switch Controller: Full LED display, MPPT, separate AC/DC mode, IP66
• Hybrid Complementary Controller: Full LED, MPPT, DC/AC/AC+DC hybrid mode, IP67
• Remote-Control Hybrid Controller: All features of Hybrid + mobile App remote control, IP67
1. Assess your well parameters — measure the static water level, dynamic drawdown, and required flow rate.
2. Determine total head = vertical lift + friction losses + discharge pressure.
3. Match pump power to solar panel capacity — total PV power should be 1.3 to 2 times the pump rated power.
4. Select controller type based on whether AC backup or remote monitoring is needed.
5. Contact Lead Pump for customized sizing and quotation.
• Agricultural irrigation (drip, sprinkler, flood)
• Livestock watering in remote pastures
• Rural village water supply and pressure boosting
• Pond and reservoir filling
• Off-grid homesteads and eco-farms
• Emergency water supply in areas with unreliable grid power
With over 40 years of manufacturing heritage and a modern service-oriented approach, Lead Pump delivers reliable solar pumping solutions backed by: 2-year manufacturer warranty, OEM/private labeling support, free spare parts package, technical assistance and troubleshooting guides, and responsive after-sales service. As a factory-direct manufacturer, Lead Pump offers competitive pricing without compromising on quality.
The SD Deep Well Solar Submersible Pump AC/DC series represents the ideal balance of efficiency, reliability, and flexibility for modern water pumping needs. Whether you're powering irrigation in off-grid farmland or ensuring continuous water supply for a rural community, Lead Pump's SD series delivers performance you can count on — day and night, sun or rain.
For more information or to request a quote, visit www.zjleadpump.com and explore the full SD series range.
