120W 24V DC Solar Water Pump

24V DC solar water pump with external DC controller has stainless steel impeller, 3 inch inlet diameter, 0.75 inch outlet diameter, maximum head 56m (180ft), maximum flow 317 gallons per hour (1200 lph). 120 watt solar well pump can be used for water tank, water gardens, small fountain or pool.
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120W solar water pump with DC controller, 24V working voltage, 317 gph max. flow, 56m max. head.


Basics SKU ATO-SWP-24V120
Shipping weight 15kg
Cable length 2m
Package included 1 * Solar water pump with 2m cable
1 * DC controller
1 * Stainless steel float switch (water level sensor for the tank)
1 * Pump outlet joint connector
1 * Splice kit for cable join
1 * Splice kit for waterproof
1 * User manual
Warranty 2 years
Solar water pump features Model 3DSS1.2-56-24-120
Voltage 24V DC
Power 120W
Max. flow 1.2m3/h (317 gph, American system)
Max. head 56m (180ft)
Length 60cm
Inlet diameter 3 inch
Outlet diameter 0.75 inch
Screw structure Stainless steel single screw
Internal motor Brushless DC motor
Speed 4000rpm
Material of shaft 304 stainless steel
Material of outlet/connector/oil cylinder Stainless steel
No water protection function The pump stops working automatically when there is no water in the well, and it will automatically restart working 30 minutes later.
Required open circuit voltage (VOC) of solar panel <50V DC
Required power of solar panel ≥1.3*pump power
Efficiency 45%
Controller features Model DF-24
Best MPPT voltage range 30-48V DC
Max. input current 15A
Working temperature -15~+60℃ (5~140℉)
Display LED display can show power, voltage, current and speed value.
Functions Automatic charging (for battery)
Variable frequency
Automatic power ON/OFF
Soft start
High voltage/low voltage/over-current/high temperature protection
Protection class IP65

120W 24V DC solar water pump performance curves (see light blue line):
120W 24V DC 3 inch solar water pump performance curves
Solar water pump installation drawing:
120W 24V DC solar water pump installation drawing
Solar water pump wiring diagram:
120W 24V DC solar water pump wiring diagram

Tips: The effect of high altitude on solar water pumping system
When the altitude exceeds 2000m, the use of universal low-voltage electrical appliances will be subject to certain restrictions. In the range of 5000m above sea level, the air pressure is reduced by about 1.07kPa for every 100m elevation. At an altitude of 1000m or above, the temperature drops by an average of 0.6 degrees for every 100m. There are two main effects on the electrical products after the pressure is reduced:

  1. The decrease in air pressure will cause the insulation strength of the air medium to decrease, resulting in a decrease in the insulation performance of electrical products.
  2. The air pressure is reduced and the air density is reduced, which will reduce the heat dissipation capability of the electrical products.

In view of the above two points, high-altitude areas require correction of the dielectric strength related indicators of general-purpose low-voltage electrical products, such as power frequency withstand voltage and impact withstand voltage, electric clearance and creepage distance, etc. The rated capacity of electrical products is also required to be modified.
The solar water pumping system is applied in high-altitude areas. For power distribution equipment such as inverter, combiner boxes and control cabinets in solar water pumping systems, the switching elements (DC circuit breakers) used in them are greatly affected by altitude. It is necessary to correct the dielectric strength related indicators. For example, reduce the capacity of input power supply voltage and rated capacity to suit high altitudes.

Products specifications
Attribute name Attribute value
User Manual

PDF Solar Water Pump External DC Cotroller User Manual

Existing reviews
Application of 120W 24V DC solar water pump
Can this 120W 24V DC solar water pump be used in the river below the mountain?
Diane Diane | 3/5/2021 12:20 AM
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Yes, it can be used in the river. Please do not put it on the bottom of the river when using this 120W 24V DC solar water pump, because the mud at the bottom of the river will damage the impeller when it enters the pump.
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