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1/2 hp (400W) Submersible/Deep Water Well Pump, 48V DC

5 out of 5 based on 2 reviews | Write a review
$727.27
1/2 hp submersible well pump has 47~50mmaximum head, 48V DC working voltage and pumps 800~1000 gallons per hour. 3-inch water well pump with an external DC controller is used for ponds, farms, fountains or pools. DC controller with LED display shows power, voltage, current and speed values.
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SKU: ATO-SWP-48V400
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Delivery date: 6-12 days

Get a 400-watt deep well pump with 48V working voltage online. The water well pump has 800 ~1000 gph max. flow, 47 ~ 50m max. head. DC controller with LED display shows power, voltage, current and speed values.

Well Pump Features

Model ATO-3DPC3-47-48-400 ATO-3DSC4-50-48-400
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
Power 400W (1/2 hp)
Voltage 48V DC
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%
Warranty 2 years
Cable length 2m

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

Package included

  • 1 * Water well 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

1/2 hp water well pump performance curves

Max. Flow: 3.0m3/h, Max. Head: 47m, Model: 3DPC3-47-48-400

400W 48V DC 3 inch water well pump performance curves

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

400W 48V DC 3 inch water well pump performance curves

Tips: Protection functions of water well pump and DC controller

  • Over-current protection: When the water well pump model is mismatched or UVW three-phase in short-circuit connection.
  • Phase protection: UVW three-phase is in an open circuit.
  • Stall protection: When the pump model is mismatched. A pump extension cord is too long. Solar water pump power is too low. The pump bearing is stuck.
  • Low voltage protection: The input voltage of the solar pump is too low.
  • High voltage protection: The input voltage is too high.
  • Dry-run protection: Not all of the air in the pump is exhausted. There is no water in the deep well/pond.
  • High-temperature protection: The temperature of the DC controller MCU is more than 90℃.
  • Reverse connection protection: The wiring is wrong.
Existing reviews of 1/2 hp (400W) Submersible/Deep Water Well Pump, 48V DC
Recommend it to everyone
This 400W submersible water pump is a must for my farm. It handles the needs of my irrigation system with ease and I would recommend it to everyone.
From: Blythe | Date: 29/03/2023
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High efficiency submersible pump
The 120W well pump arrive early than I expected. It is easy to assemble, I have been using it for more than 6 months, it works well and the pump is very durable and reliable.
From: mikepos | Date: 27/03/2023
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