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DC AC dual-use 2HP deep well solar water pump with frequency inverter, flow 6T/H head 45M for house use, agricultural irrigation

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Company Information

Xiamen Mars Rock Science Technology Co., Ltd.

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Quick Details

Place of Origin: Fujian China
Brand Name: MarsRock
Model Number: 4SZW6-45-1.5
flow(rated/max): 6T/h (m3/h) Max 12T/h
head(rated/max): 45/65m
size: 4 inch
solar power: 2.78kw
voltage: AC220V DC300V
height: 500mm
material: Stainless Steel Solar Water Pump
submerged pump cable: 5m
outlet: 38mm
commodity: Solar Water Pump and Pump Controller
Pressure: High Pressure
Standard or Nonstandard: Standard
Application: Submersible
Theory: Electromagnetic Pump
Usage: solar deep well pump for clean water
Fuel: solar power
Power: 1500W
Structure: brushless high-speed motor
Delivery Detail: 7 days after payment
Selling Units: Single item
Single package size: 60X35X20 cm
Single gross weight: 18 KG
Package Type: Standard Export Carton

DC AC dual-use 2HP deep well solar water pump with frequency inverter, flow 6T/H head 45M for house use, agricultural irrigation

Special note: the above price includes the pump and the controller.

if you need other relevant supporting products, such as solar panel, submerged pump cable, PV cable, floater, PV mounting bracket, break air switch, controller box etc., please contact me.



Product Introduction


The brushless high-speed motor deep well pump is one of the invention patents of our company. We apply high speed brushless

synchronous motor with permanent magnet in our pump so the conversion efficiency is high. With small size, light weight and stainless steel material, our pump is of long lifespan and good reliability. It is characterized by energy saving and convenience.


Our pump can be powered by both AC, DC solar input. Now we have SSW DC series pump and SZW AC&DC series pump.

SZW series work in AC and DC dual-use mode under which the pump can make full use of the solar energy and automatically change to AC. Because of the high-efficiency motor and automatic conversion technology, its water outlet is much bigger than other PV pumps.


There are SZW series pump of 2 inch, 3 inch, 4 inch, 6 inch and 8 inch for you to choose. And for this 4 inch pump, power ranges from 750W to 7500W. And we also supply other relevant supporting products, such as solar panel, submerged pump cable, PV cable, floater, PV mounting bracket, break air switch, controller box etc.


This pump is mainly used for all kinds of water supply and drainage, fountain, solar system and other field requires deep well pump as well as remote areas where city grid power is unavailable.




1. Two working models, one model uses the DC solar energy, the other uses the AC power. And the input power can switch between solar and AC power automatically. Solar power can be 100% fully used under this circumstance.

2. Higher efficiency because it is equiped with permanent magnet synchronous motor which has high speed and higher efficiency compared to asynchronous motor. 

3. The pump works both at 50HZ and 60HZ, and also the head and flow can remain unchanged under wide voltage. The output is constant when the voltage pulsation happens.

4. This pump should be worked with our exclusive controller, owns frequency control and constant velocity.

5. Volume and weight are just 1/5 of other pumps in same specifications.

6.  Energy saving and complete functions. It can be applied in industry, agriculture, petrochemical industry, medicinal industry and other kinds of water process.



Model Number Formation

model formation.jpg



4 Inch Solar Water Pump (DC AC Dual Input)
4SZW10-45-2.2220010/1445/602.854.27220/300V 380V/530V650050038
4SZW3-130-2.222003/8130/1503.65.4220/300V 380V/530V720056038
4SZW2-180-2.222002/7180/1953.75.5220/300V 380V/530V720060038
4SZW8-60-2.222008/1260/852.894.33220/300V 380V/530V720052038
4SZW16-25-2.2220016/2625/352.633.95220/300V 380V/530V500050050
4SZW10-58-3300010/1458/7446220/300V 380V/530V720051038
4SZW3-175-330003/5175/1983.855.78220/300V 380V/530V650063038
4SZW5-100-330005/8100/1203.575.3220/300V 380V/530V720054038
4SZW10-50-3300010/1450/653.575.3220/300V 380V/530V720052038
4SZW18-30-3300018/2930/423.315220/300V 380V/530V550052050


Connection between Head and Flow

head and flow.jpg

Connection between Speed, Head, Flow and Power

head flow and speed.jpg


Product Photos







Rotor of our permanent magnet synchronous motor is made of rate earth magnet, driven by a diver which works when gap between rotor and winding differs. Pump speed is decided by its driver. Rotating magnetic field of motor and stator keep rotating synchronously.

It can work under constant power, speed, and torque with quick reflection and precise control. With constant speed, it can keep the head and flow unchanged in wide range of voltage.

Its efficiency is 15% to 20% higher than other single-phase asynchronous motor (include loss from motor and controller) and 7% to 10% higher than three-phase asynchronous motor. And if we equip three-phase asynchronous motor with frequency conversion controller, permanent magnet synchronous motor can be 10% to 13% higher than it.

It is equipped with a controller which adopts DC frequency inverter technology. This controller can protect the motor when it is over-heated, over current and over loaded.

Motor speed can be designed as required. When speed is high, motor size will be smaller and material cost will be lower.


Usually efficiency of pump body is 50%-70%, installing permanent-magnetic synchronous motor in the pump, efficiency of pump can be improved by 5%-7%.


Performance comparison between pump with  permanent magnet synchronous motor and pump with normal speed



This pump is mainly used for all kinds of water supply and drainage, fountain, solar system and all other field requires deep well pump, widely used in industry, agriculture, petrochemical industry, medicinal industry and all kinds of water process.

This pump has obvious advantages especially for those request high pump head and big power. It’s a new generation

electromechanical integration well pump, and it would be the future direction of deep well pump development.





 High voltage solar energy and AC220V                                                 High voltage solar energy and AC220V

 automatically switch controller connection diagram                           dual-use controller connection diagram



Solar energy plate connection reference
Pump VoltageSolar Panel VoltageSolar panel QTYConnection Method
12V121In series connection
AC220V/DC300V1618~19In series connection
AC380V/DC530V1633~38In series connection
Note:This is only one group, if power is not enough, just connect one or several groups and voltage will keep the same. Solar voltage means working voltage of solar panels, we mention 24V solar panel, and its open circuit voltage is 30-36V(changed with temperature)


Notice For Using Pump:

1. If pump is working on its max. Head, then pump can be displaced 100 meter under the water. Before working, please check that whether the pump is in good condition, no loose connection, no seepage and leakage of oil and no damage of cable. Use the ohmmeter to measure insulation electric resistance of pump. When the pump is in cold conditions, the electric resistance can be ≥50MΩ, and when the pump is in hot conditions, the electric resistance can be ≥2MΩ.


2. The pump power requirement is±10%. When the controller output power is constant and the voltage is too low, the output current will increase and reach the upper limit of the controller for protection so that the controller will stop working. At this time we should change the pump to manual working mode and slow down the speed a bit.


3. The pump should be equipped with its unique electric brake and switch separately. Ground terminals on the pump housing should be connected to the ground wire. Wires in green and yellow colors are ground wires and should be connected to the ground accordingly. When the cables equipped on the electric pump are not long enough and should be lengthened, the diameter of the lengthened cable must be larger than the previous one. Use waterproof adhesive tape to seal the joint.


4. Before using, connect the pump to power supply and check whether its starting and running are normal. Please note that pump should work in counterclockwise direction. Keep the pump working in short time to check whether the rotation direction of the electric pump is correct for the one that forbids rotating without water. If the rotation direction of the three-phase electric pump si not correct, then adjust any two of the power input lines.


5. The installing and hoisting of electric pump should be performed at the annular ring by the lifting rope. It is forbidden to lift the cable to hoist the electric pump. It should be more than 1m from the water bottom so as to prevent the suction of sediment and avoid the damage of components such as machine ring and impellers.


6. Pay attention to the descending condition of water level when the electric pump is working, especially when it is working under the well. Never keep the electric pump work emerging the water level or without water, otherwise the motor and other components may be damaged. Also the pump can’t work under sludge or the motor will be damaged because of poor heat dissipation.

Factory Details

MARS ROCK GROUP is a high-tech group specializing in the R&D, manufacturer, and marketing of solar photovoltaic systems and solar products. Now as one of the most professional solar products manufacturer, based on self-produce and self-market management. Our beliefs are:

1.  To grow together, to win together with you.

2.  To guarantee our quality and competitive prices for you.

3.  To give first-grade services to you.

Mars Rock MSC pump industry founded in 2008, which has always been committed to the continuous innovation of technology and management, the establishment of a complete quality management system, advanced pump test center, and excellent after-sales service department.

Part 1 Workshop


Part 2 Testing






1. Can it be used to swamp?

No, the SZW series water solar pump can only using in the clean water.


2. What kind of pump should I choose?

We will help you to design the perfect pump to satisfy your demand.


3. If there is no sun, can the pump work?

Yes. The pump switches solar DC and AC working model automatically.


4. Can you accept OEM with buyer’s logo and label information?

Yes, we can.


5. Can I buy the pump only without the controller?

No. Our pump can only work with our exclusive controller.


6. What is the MOQ?

The MOQ of water solar pump is 1 set.


7. How about the warranty?

The SZW series water solar pump’s warranty is one year.