ZKSJ 3-phase brushless DC Pump DC50D With the impeller rotor die protection, reverse connection protection, overload protection, over current protection.

  • Impeller: Closed Impeller
  • Max head: 4M(for T sub-series) or 6.5M(for S/A sub-series)
  • Weight: 480g
  • Rated voltage: 12Vdc
  • Max flow: 36L/MIN(for T sub-series) or 41L/MIN(for S/A sub-series)
  • Dimension: 103.5x107x64mm
Customer service:86-755-27811557
1Dimension and weight103.5mmx107mmx64mm;480g
2External diameter of outlet20mm
3External diameter of inlet20mm
4Driving mechanismBrushless, magnetic separation
5Material of pump shellABS,PES/SPS/PPS/PA66+30%GF (Optional)
6Condition of useCan continuously work, submersible or land use (not self-priming)
7Suitable mediumWater, oil, or normal acid/ alkaline liquids
(Pre-test needed for special liquid)
8Max working temperature60℃(for T sub-series) or 100℃(for S/A sub-series)
9Power consumption2.5W~45.6W(for T sub-series) or 2.5W~86.4W(for S/A sub-series)
10Rated voltage12Vdc or 24Vdc
11Working voltage range5Vdc ~ 12Vdc or 5Vdc ~ 24Vdc
12Max load current2.1A (for T sub-series) or 3.8A(for S/A sub-series)
13Max horizontal flow rate36L/MIN(for T sub-series) or 41L/MIN(for S/A sub-series)
14Max static lift4M(for T sub-series) or 6.5M(for S/A sub-series)                                 
15Noise classIP68(suitable for submersible installation)
16Waterproof classCan be more than 30,000hrs
17Life spanCan be suitable solar panel, batteries, source adapter or other power module
18Power supplyWater protection, dry-run protection, stall protection, stuck protection
(functions are optional for customization)
19Protection functionSpeed adjustable by PWM signal, 0~5V analog signal or potentiometer (functions are optional for customization)
20Power regulation functionIP68(suitable for submersible installation)
  • Small size, high efficiency, maintenance-free, low consumption, strong anti-jamming ability, stable performance

  • Brushless with no pollution, adopts high-performance ceramics shaft and high-precision carbon fiber sleeve together (stainless steel shaft optional for reducing cost)long life span

  • Stator and control circuits are completely sealed by epoxy resin completely separated with rotor, waterproof, avoided water-leakage problem which long exists in normal DC motor pump products

  • Protection functions can be customized such as lock protection, dry-run protection and so on.

  • Wide range of working voltage; parameters can be adjustable, e.g. 12VDC pump can have lift of 1m and lift of 3m with the same pump body.

  • For A/S sub-series,soft-start without impact,can be directly powered by solar panel; circuit parts and motor parts completely separated, no electronic components inside pump body; pump body is made of high-temperature-resistant material, so pump can continuously work at fluid with high temperature (as high as 100C); have several protection functions, such as impeller&rotor lock protection, polarity reverse-connected protection, over-load protection, over-current protection, etc.

  • For A sub-series, it's easy to regulate the power/speed of pump via PWM signal/ 0~5V analog signal/ potentiometer; flow rate & lift can be smoothly adjusted

  • Reduced the mortality to 0.05% after long-time study by R&D dep.

  • Lift of pumps can be doubled when they are connected in series

  • Suitable for submersible installation or land use (should be located below fluid level)

  • Offer ODM serve for pump and other controller system

Electrical parameters (only for reference,parameters can be customized for specific requirements)
Model No.VoltageMax load currentMax static liftMax flow ratePower consumption
  • Information including continuous working time, working temperature and medium is required to be pre-confirmed with professionals; pump cannot work with high temperature or corrosive fluids.

  • When pump is connected into circulation system, load current will be reduced to 70~85% of Max working current (opening outlet current).

  • The head means the Max vertical lifting height of water. The flow is 0L/MIN@max head.

  • The max flow rate means flow rate with no lifting height(according to the curve bellow)

Difference between 2phase & 3phase brushless DC pump
(T sub-series)
  • Hall sensor driving, circuit board should be placed inside pump body

(S/A sub-series)
  • NOTE that 3phase dc is completely different with 3phase AC; 3phase DC means 3 pairs of magnetic polarity & sensor-less, power supply  the same with common DC pump(two wires: positive and negative)

  • Intelligent program-driving, sensor-less, circuit can be put outside of pump body (main factor that pump can be high-temperature resistant)

  • Speed adjustable by PWM, 0~5V signal or potentiometer(optional)

  • Lock protection,reverse-connected protection, over-vol.&over-current protection, over-temperature protection

  • Soft start, no current impact, can be contact directly with solar panel

Diagram of 3phase brushless DC pump connection

Zhongke water pumpZhongke water pump

                      S-Series                                                                  A-Series

Potentiometer Speed adjusting connection:
Contact the red and black wire to both ends of potentiometer(variable resistor),then contact the yellow wire to the middle of potentiometer,Speed canbe changed by turning the potentiometer. Potentiometer speed adjusting is the same with VR speed adjusting(Remove the potentiometer and contact the speed adjusting wire like VR speed adjusting connection bellow).
PWM(50-800HZ/Amlitude 5V) or VR(0-5V) Speed adjusting connection:
Contact the yellow wire to the control system's speed control signal output interface(PWM or VR) and contact the black wire to the ground lead in the control system.hang the red wire on the air.

Dimensions of pump


Characteristics of three-phase water pump

1.DC Low voltage safe and reliable

2.Three phase brushless sine wave control technology

3.Eliminate high-frequency electromagnetic noise, smooth and silent

4.The pump body and the drive can be separated and resistant to high temperature

5.Magnetic isolation design, leakage proof, waterproof grade IP68.

6.Acid, alkali and salt corrosion resistance, oil resistance, organic solvents and other liquid media (consult in advance)

7.Constant power can be customized (for example, 12V 80W water pump, Constant Power 80W with voltage varying between 12v-24v)

8.Constant speed can be customized (keep the speed unchanged when the load changes)

9.Accurate dry run protection and Jam protection based on current detection (programmable protection mechanism)

10.Soft start eliminates the peak voltage and reduces the starting current

11.Suitable for Music fountain and other high-frequency start- stop application

12.MPPT function can be customized for solar power supply to avoid poor startup when the light is weak.

13.The pump and pump control system can be customized for various application environment requirements

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