500W 48V DC Solar Water Pump

500 watt solar water pump with external DC controller has stainless steel impeller/screw, maximum head 45~109m (145~355ft), maximum flow 449~1321 gallons per hour, 3 inch/4 inch inlet diameter and 0.75 inch/1.25 inch outlet diameter. 48V DC solar water motor pump can be used for deep well, small fountain, large pond or water tank.
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500w solar motor pump with DC controller, 48V working voltage, 449~1321 gph max. flow, 45~109m max. head.


Basics SKU ATO-SWP-48V500
Shipping weight 15kg
Cable length 2m
Package included 1 * Solar water pump
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 Power 500W
Voltage 48V DC
Max. flow * 1.7m3/h (449 gph, American system) 5.0m3/h (1321 gph, American system)
Max. head * 109m (355ft) 45m (145ft)
Length 70cm 50cm
Inlet diameter 3 inch 4 inch
Outlet diameter 0.75 inch 1.25 inch
Structure Stainless steel single screw Single-suction stainless steel impeller
Model 3DSS1.7-109-48-500 4DSC5-45-48-500
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 water 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 <100V DC
Required power of solar panel ≥1.3*pump power
Efficiency 45%
Controller features Model DF-48
Best MPPT voltage range 60-90V 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

500W 48V DC solar water pump performance curves:
Max. Flow: 1.7m3/h, Max. Head: 109m, Model: 3DSS1.7-109-48-500
500W 48V DC solar water pump low flow performance curves
Max. Flow: 5.0m3/h, Max. Head: 45m, Model: 4DSC5-45-48-500
500W 48V DC 4 inch solar water pump high head performance curves
Solar motor pump installation drawing:
500w 48V DC solar water motor pump installation drawing
Solar motor pump wiring diagram:
500w 48V DC solar water motor pump wiring diagram

Tips: The protection functions of solar water pump and DC controller

  1. Over-current protection
    When the solar water pump model is mismatch, or UVW three-phase in short-circuit connection.
  2. Phase protection
    UVW three-phase is in open circuit.
  3. Stall protection
    When the pump model is mismatch. Pump extension cord is too long. Solar water pump power is too low. Pump bearing is stuck.
  4. Low voltage protection
    The input voltage of solar pump is too low.
  5. High voltage protection
    The input voltage is too high.
  6. Dry-run protection
    Not all of air in the pump is exhausted. There is no water in the deep well/pond.
  7. High temperature protection
    The temperature of DC controller MCU is more than 90℃.
  8. Reverse connection protection
    The wiring is wrong.
Products specifications
Attribute name Attribute value
User Manual

PDF Solar Water Pump External DC Cotroller User Manual

Existing reviews
Great 500W solar water pump and easy to maintain
I made this perfect little fountain and found the perfect 500W solar water pump to keep the water flowing. I like the solar water pump on the online store.
Kelly Kelly | 5/11/2021 8:02 PM
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