3LSC-H Dual-Supply Solar High-Head Submersible Pump

Model Interpretation:
3: Represents a pump body diameter of approximately 3 inches (approximately 76mm), suitable for standard small-diameter wells.
LSC: Typically stands for "Vertical (L)", "Deep Well (S)", and "Plastic Impeller (C)".
H: Represents "High Head" or "Hybrid" (referring to reinforced structural components).

Core Form: Multi-stage centrifugal submersible pump.
Working Method: Directly submerged in water. It increases the head by increasing the number of impeller stages, specifically designed to solve the problem of "very deep water" but "low flow rate requirements".
Core Working Principle: Multi-stage pressurization + plastic impeller
The 3LSC-H series operates on the principle of "low flow, high pressure":
Multi-stage impeller series: Unlike the single-stage 3LAR, the 3LSC-H usually consists of multiple sets of plastic impellers connected in series. The water pressure increases with each impeller stage.
High head output: This structure allows it to easily lift water to a height of 50 meters or even 100 meters, despite its low flow rate (usually 1-3 tons/hour).
Wide voltage operation: This series is usually used with an MPPT controller, which can adapt to large fluctuations in solar voltage and maintain operation even in low light conditions.
Key Features: Deep well expert, corrosion resistant, lightweight

Feature Detailed Description
High Head Capability Core advantage. Compared to the 3LAR series, the 3LSC-H has a higher head. It can easily handle water extraction from wells 50-100 meters deep, making it the first choice for small and medium-sized deep wells.
Plastic Impeller (Corrosion Resistant) The impeller is made of PPO (polyphenylene oxide) or modified nylon material. This material never rusts, making it ideal for pumping water containing trace amounts of chemicals or salts, and it has low operating resistance and low noise.
Sand-resistant and wear-resistant design Although plastic is not as hard as metal, modern 3LSC-H series usually use special wear-resistant coatings or large flow channel designs. Compared to ordinary metal pumps, it is less sensitive to small sand particles in the water (but still cannot pump sand).
Lightweight and easy to install The entire unit is lightweight, and with a lightweight cable, one person can complete the well lowering and installation.

Typical Application Scenarios
The 3LSC-H series is the main equipment for deep well water extraction, household water supply, and small-scale irrigation:
Medium-deep well groundwater extraction:
Suitable for deep wells with a depth between 30 and 100 meters. If your well is deeper than this, you may need to consider the 4PSS series.
Household/villa water supply:
Used to pump deep well water to a rooftop water tank for household use such as washing, showering, and toilet flushing.
Small farm/orchard irrigation:
Suitable for several acres of farmland or orchards, using its high pressure to transport water to distant fields.
Livestock drinking water:
Used for replenishing automatic drinking troughs in livestock farms.

Selection and Usage Suggestions
Still a "clean water pump":
Although stronger than the 3LAR series, the nature of its plastic impeller means it is not wear-resistant. It is still only suitable for clean water environments.
Recommendation: If the well water contains a large amount of sand, be sure to choose a pump with a stainless steel impeller (such as the 4PSS series), otherwise the impeller will wear out quickly.
Flow rate matching:
The 3LSC-H series usually has a high head, but a relatively small flow rate (it's a "slow and steady" type). If you need to fill a large pool quickly, it may not be the fastest option.
Voltage selection:
Due to the high head and multiple stages, the motor load is relatively large. It is recommended to choose the appropriate voltage (such as 48V or 96V) based on the well depth to ensure starting torque and operating efficiency.

The 3LSC-H series is a "workhorse" among solar water pumps. It strikes a balance between the 3LAR (shallow well) and 4PSS (deep well/high power) series. If you have a medium-depth well (50-100 meters) and only need to meet household water needs or small-area irrigation, it is more cost-effective than expensive stainless steel pumps and more capable than shallow well pumps.