400W 48V DC Solar Water Pump

$727.27

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3 inch solar water pump with special DC controller can be used for pond, farm, fountain or pool. 1/2 hp solar water pump with low cost can pump 800~1000 gallons per hour. The maximum head is 47~50m. The working voltage of 400W solar water well pump is DC 48 volt. DC controller with LED display can show power, voltage, current and speed values.

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Delivery date: 6-12 days

SKU: ATO-SWP-48V400

Max. Flow & Max. Head *

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Overview
Specs
Manual
FAQ
Reviews

Overview

400W solar water pump with DC controller, 48V working voltage, 800 ~1000 gph max. flow, 47 ~ 50m max. head.

400W 48V DC solar water pump with controller specifications:

Basics	SKU	ATO-SWP-48V400
	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	Power	400W (1/2 hp)
	Voltage	48V DC
	Max. flow *	3.0m³/h (800 gph, American system)	4.0m³/h (1057 gph, American system)
	Max. head *	47m (154ft)	50m (164ft)
	Impeller structure	Single-suction plastic impeller	Single-suction stainless steel impeller
	Material of outlet/connector/oil cylinder	Brass	Stainless steel
	Model	3DPC3-47-48-400	3DSC4-50-48-400
	Length	60cm
	Inlet diameter	3 inch
	Outlet diameter	1.25 inch
	Internal motor	Brushless DC motor
	Speed	4000rpm
	Material of shaft	304 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

1/2 hp 48V DC solar water pump performance curves:
Max. Flow: 3.0m³/h, Max. Head: 47m, Model: 3DPC3-47-48-400

Max. Flow: 4.0m³/h, Max. Head: 50m, Model: 3DSC4-50-48-400

1/2 hp 48V DC solar water pump installation drawing:

1/2 hp 48V DC solar water pump wiring diagram:

Specs

Basics	SKU	ATO-SWP-48V400
	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	Power	400W (1/2 hp)
	Voltage	48V DC
	Max. flow *	3.0m³/h (800 gph, American system)	4.0m³/h (1057 gph, American system)
	Max. head *	47m (154ft)	50m (164ft)
	Impeller structure	Single-suction plastic impeller	Single-suction stainless steel impeller
	Material of outlet/connector/oil cylinder	Brass	Stainless steel
	Model	3DPC3-47-48-400	3DSC4-50-48-400
	Length	60cm
	Inlet diameter	3 inch
	Outlet diameter	1.25 inch
	Internal motor	Brushless DC motor
	Speed	4000rpm
	Material of shaft	304 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

Manual

Solar Water Pump External DC Cotroller User Manual

FAQ

What is a Solar Water Pump?

A solar water pump system is a photovoltaic pumping system that uses the solar panel power generated by the PV (photovoltaic) array to drive the solar pump for water feature. The whole system is mainly composed by the solar panel, solar inverter, and solar water pump. It is the most attractive water supply means in the sun-rich areas of the world today, especially in remote areas where electricity is insufficient or not available.
There are two main types of solar water pumps. The surface pump is located on the ground and moves water through the pipe. They can move a lot of water slowly. The submersible solar water pump for irrigation is located underground, but the solar panel is connected to the ground. The submersible pump is used to move water from the well to the surface. Solar submersible water pumps are often found on farms or large irrigation systems where water needs to be moved from the lake to the field for irrigation, or to be moved from the well to the water tank for fountain, pool, and home use.

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Existing reviews

Reliable little pump for daily watering.

My colleague has been using this 400W solar water pump for our small farm pond, and it moves water steadily, easily reaching over 800 gallons per hour on sunny days. The LED controller is easy to read. For a 1/2 hp setup, it handles the 50-meter head pretty well.

From: Donahue Robbins | Date: 6/20/2025 3:21 AM

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well probe sensor for 3DPC3-47-48-400

Greetings,

I wish to confirm whether the attached product has a provision for incorporating a well probe sensor into the pumping system.

As per your manual, you've indicated that a tank level sensor can be included, what of the well probe sensor?

From: Guest | Date: 1/14/2020 1:35 AM

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