4" 500W 22GPM Solar Submersible Deep Well Pump and Control Box Set

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38.00 LBS
34.00 (in)
7.50 (in)
15.00 (in)
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This is the highest flow solar pump in Tuhorse 500 Watts class.

It is a very good choice for applications require high flow but low head up to 60 feet vertical using only 1 or 2 solar panel, such as a water fall application, pumping from a lake or a shallow well.

Rated flow 22GPM; Max flow 33GPM; 90 foot max(cut off) head

500 Watts Stainless Steel Impellers Solar Pump, Motor and Control Box Set. (4THS18C48V500)

Package includes:

4" 500 Watts 3-phase brushless solar motor, Recommended solar panel 35V to max 78V
4" 4-stages stainless steel impellers pump-end
Automatic control box, works with solar panel, nominal DC 48V, soft start
2 x water level sensor for setting up automatic pumping
2 x 10 ft. MC4 cable w/ M-F connectors, for connecting solar panel to control box
Heat shrink splice kit for watertight connection
Installation guide
1 year warranty (return to BC Canada*)



Daily production with 6 hours peak sun-- Tested using 2x 280W Vmp 31.6V, 60-cell panels(not included)
Head (ft.) Gallon / min Gallon / day
80 ft. 6 Gal 2160 Gal
70 ft. 12Gal 4320 Gal
60 ft. 16Gal 5760 Gal
50 ft. 20 Gal 7200 Gal
40 ft. 26 Gal 9360 Gal
20 ft. 30 Gal 10800 Gal


Daily production with 6 hours peak sun-- Tested using 1x 280W 38V, 72-cell panel(not included)
Head (ft.) Gallon / min Gallon / day
60 ft. 5 Gal 1800 Gal
50 ft. 8Gal 2880 Gal
40 ft. 10 Gal 3600 Gal
30 ft. 12 Gal 4320 Gal
20 ft. 18 Gal 6480 Gal

4THC18C48V500 Solar Water Pump Specifications:

Fit 4" inside diameter and larger well
500W 48V-DC nominal operating power
1.5" NPTF discharge (outlet)
22GPM rated, 33GPM Max.
4 Stages stainless steel impellers design
Pump Diameter, length: 3.9" x 21" (95mm x 70mm)
Pump Net weight: 20Lb (9kg), excluding control box
Package Weight: 38Lb / 17kg, including control box
Soft start, DC solar power converted to 3-phase to power the pump motor
Maximum submersion - 150 feet

Auto control box specifications:

Optimize pumping efficiency with MPPT according to sunlight condition and
solar panel used
Fully automatic pumping mode using water level sensor(s)
Bypass sensors for application that does not require water level monitoring
Low power protection, overload protection
Dry run protection in automatic mode
Maximum input withstand Voc = 100V (solar panel array open circuit voltage)
Maximum input current 10 amps


1 year warranty (return to BC Canada*) Note: Tuhorse full solar pump kits with solar panel offer two years warranty. Consider to choose from a full kit SKUs to buy.