3ESC 3" DC Brushless Solar Deep Well Pump With Stainless Steel Impeller

3" Compact Size

DC Brushless

Stainless Steel Impeller Type

Stainless Steel for Outlet/Connection/Oil Cylinder

NSK Bearing

MPPT Function

PREV：3EPC 3" DC Brushless Solar Submersible Deep Well Pump
NEXT：4EPC 4" DC Brushless Solar Pump With Plastic Impeller

Description
Components
Curves
Performance Data
Contact Us

Pump Description:

Introducing the 3" DC Brushless Solar Pump with Stainless Steel Impeller - a top-of-the-line product that is designed to meet all your pumping needs. This innovative pump is designed to operate with maximum efficiency, utilizing solar power to provide a reliable and cost-effective water supply.

Main Features：

●Permanent magnet DC brushless synchronous motor which is save energy and high efficiency (improved by 15%-20%), so it can also help to reduce the consumption of solar panels
●The whole pump is made by Stainless steel, including the pump casing, shaft, impeller, outlet, oil cylinder, etc
●By using Japanese brand NSK bearing to make sure the long using life
●By using alloy mechanical seal to make Longer working life and high reliability
●The wire winding is made by automatic winding machine using centralized winding technology, to improve the motor efficiency
●High-precision, strictly controlling the dimension precision and smoothness which is also very important to make a good quality pump
●Detection sensitivity: Intelligent water shortage and full water protection
●Low noise operation: This means that you can enjoy a peaceful and quiet environment
●DC Controller:
1) Waterproof class: IP65
2) Round temperature: -15℃ to 60℃
3) MPPT function, operating with maximum efficiency, utilize solar power to provide a reliable and cost-effective water supply
4) Automatic charging function: Guarantee the pump normally working, meanwhile charge the battery
5) LED displays the power, voltage, current, speed etc working condition and error code
6) Flexible conversion function: It can automatically run with frequency conversion according to the solar power, and user also can change the speed of pump by manpower
7) Water proof and leak-proof: Double peneteation protection to motor
8) Soft start: No impulse current
9) High voltage/Low voltage/Over-current/High temperature protection
●2 years warranty

Spare Parts：

Installation Tutorial：

Installation of DC PUMP：

How to choose the Solar Panel：

Components & Materials：

Components	Materials
Pump external casing	Stainless Steel
Outlet	Stainless Steel
Connection	Stainless Steel
Oil cylinder	Stainless Steel
Impeller	Stainless Steel
Bearing	NSK
Shaft	Complete SS304

Hydraulic Performance Curves：

Technical data：

ITEM	Voltage	Optimum input voltage(DC)	Power	Max. Flow	Max. Head	Outlet	Cable	Solar panel
ITEM	Voltage	Optimum input voltage(DC)	Power	Max. Flow	Max. Head	Outlet	Cable	Open circuit voltage(VOC)	Power
3ESC4-35-24-300	24V	30V-48V	300W	4m³/h	35m	1.25"	2m	＜55V	≥1.3*PUMP POWER
3ESC4-50-48-400	48V	60V-90V	400W	4m³/h	50m	1.25"	2m	＜105V	≥1.3*PUMP POWER
3ESC4-80-48-600	48V	60V-90V	600W	4m³/h	80m	1.25"	2m	＜105V	≥1.3*PUMP POWER
3ESC4.8-95-72-750	72V	90V-120V	750W	4.8m³/h	95m	1.25"	2m	＜160V	≥1.3*PUMP POWER
3ESC4.8-112-72-1100	72V	90V-120V	1100W	4.8m³/h	112m	1.25"	2m	＜160V	≥1.3*PUMP POWER
3ESC4 8-112-110-1100	110V	110V-150V	1100W	4.8m³/h	112m	1.25"	2m	＜210V	≥1.3*PUMP POWER
3ESC4.8-135-110-1500	110V	110V-150V	1500W	4.8m³/h	135m	1.25"	2m	＜210V	≥1.3*PUMP POWER

About Us

Taizhou Edwin Electric Co., Ltd.

EDWIN PUMP is a professional China borewell pumps manufacturers and deep well pumps factory, which supply a wide range of water pumps and water treatment peripheral products to customers around the world.
With these advanced facilities & instruments, we can supply the most precise finished products to our customers, and make products meet their overall inspection requirements on chemical composition, mechanical properties, non-destructive testing, and high accurate dimensional inspections.

Certificate Of Honor

News

Which Applications Suit Multistage Horizontal Pumps?
2025-11-25
Horizontal multistage pumps are widely used in industries that require efficient fluid handling under varying pressure ...
READ MORE
What Maintenance Does an Intelligent Circulation Pump Require?
2025-11-21
Intelligent circulation pumps have become increasingly popular in modern heating and cooling systems due to their energ...
READ MORE
Which Features Matter In Multistage Pumps?
2025-11-14
Horizontal multistage pumps are widely used in industrial, agricultural, and municipal applications where high-pressure...
READ MORE