210W 36V DC Solar Water Pump

210 watt solar water pump has stainless steel impeller, maximum head 77m (250ft), maximum flow 317 gallons per hour (1200 lph), 3 inch inlet diameter and 0.75 inch outlet diameter. Solar submersible pump has special external DC controller, can read power, voltage, current and speed in time. 36V DC solar powered water pump can be used for drip irrigation, small fountain, farms, cattle or pond.
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210W solar water pump with DC controller, 36V working voltage, 317 gph max. flow, 77m max. head.


Basics SKU ATO-SWP-36V210
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 3DSS1.2-77-36-210
Voltage 36V DC
Power 210W
Max. flow 1.2m3/h (317 gph, American system)
Max. head 77m (250ft)
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 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 <50V DC
Required power of solar panel ≥1.3*pump power
Efficiency 45%
Controller features Model DF-36
Best MPPT voltage range 30-58V 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

210W 36V DC solar water pump performance curves (see red line):
210W 36V DC 3 inch solar water pump performance curves
Solar water pump installation drawing:
210W 36V DC solar water pump installation drawing
Solar water pump wiring diagram:
210w 36V DC solar water pump wiring diagram

Tips: Features of 3 different types of DC solar submersible pumps

  1. Brush motor type solar submersible pump
    When the solar water pump is working, the coil and the commutator rotate, the magnetic steel and the carbon brush do not rotate, and the alternating current direction of the coil is completed by the commutator and the brush that the motor rotates. So as long as the motor rotates, the wear of carbon brush occurs. When the solar water pump runs to a certain extent, the carbon brush wear gap becomes larger and the sound will increase accordingly. After several hundred hours of continuous operation, the carbon brush cannot play the role of reversing.
    Advantages: low price.
  2. BLDC motor type submersible solar water pump
    The BLDC motor type solar submersible pump is composed of a brushless DC motor and an impeller. The shaft of the motor is connected with the impeller, and there is a gap between the stator and the rotor of the water pump. When the water is used for a long time, the water will penetrate into the motor and the motor is easily burned out.
    Advantages: Brushless DC motors have been standardized. It has low cost and high efficiency.
  3. Brushless DC magnetic drive solar submersible pump
    The brushless DC solar water pump adopts electronic component for reversing (no need to use carbon brush reversing), wear-resistant ceramic shaft and ceramic bushing. The bushing is integrated with the magnet through injection molding to avoid wear, so the life expectancy of brushless DC magnetic solar water pump has increased. The stator part and the rotor part of the solar water pump are completely isolated, the stator and the circuit board part are sealed by epoxy resin, the waterproof performance is good, and the rotor part is made of permanent magnet. The water pump body adopts environmentally friendly material, low noise, small volume, performance stable. Various required parameters can be adjusted by the winding of the stator and can be operated at a wide voltage.
    Advantages: long life, low noise (below 35dB), and high temperature resistance, can be used for hot water circulation system. It can be installed underwater and with good waterproof performance and good shock resistance.
Products specifications
Attribute name Attribute value
User Manual

PDF Solar Water Pump External DC Cotroller User Manual

Existing reviews
The use environment of 210W solar water pump
Will this 210W solar water pump still work on a cloudy day?
Delco Delco | 8/17/2021 7:35 PM
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Responded by
Hi, the 36V solar water pump will work intermittently on cloudy days, we recommend that you place the solar panel in direct sunlight.
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