DC45A
1year
12m
850L/H
Magnetic
Plastics
Single-stage Pump
Booster Pump
Electric
Magnetic Pump
Blade Pump
Submersible Pump, Clarified Water Pump, Oil Transfer Pump, Chemical Pump
Mechanical Pump
Water, Oil, Coolant and Other Acid Base Solutions
Wear Pump
Centrifugal Pump
zksj
Neutral Packing
89mm*68mm*76mm
China
8413709190
Product Description
12/24V micro water chiller pump, coolant pump

Notice: The pump is not self-priming pump. When install, please make sure there is enough water in pump gland. Meanwhile, the pump must be installed below the liquid level in the tank.
1 | Product name | Brush-less dc pump DC45A | ![]() ![]() |
2 | Model No. | DC45A | |
3 | Weight: | 0.3kg | |
4 | Life span: | ≥30000h(continuous) | |
5 | Waterproof Grade: | IP68 | |
6 | Color: | Black | |
7 | Certificate: | CE,ROSH | |
8 | Material of pump | PPS+30%GF | |
9 | Noise class: | ≤35dB | |
10 | Bearing pressure: | 0.5MPa(5kg) | |
11 | Insulation grade: | H Grade(180°) | |
12 | Working principle: | Centrifugal pump | |
13 | Application | Cooling circulation system |
.Range of application
1 | Liquid Type | Water, oil, or normal acid/ alkaline and other liquids(need to test) |
2 | Liquid Temperature | -30°-100°( controller inside for non-submersible/controller outside for submersible) |
3 | Power regulation function |
|
4 | Power | PSU,Solar panel,Battery |
.Electrical parameters (only for reference)
1 | Product model: | DC45A-1240PWM DC45A-1240VR DC45A-1240S DC45A-1240T | DC45A-1280PWM DC45A-1280VR DC45A-1280S DC45A-1280T | DC45A-24100PWM DC45A-24100VR DC45A-24100S DC45A-24100T | DC45A-24120PWM DC45A-24120VR DC45A-24120S | PWM:PWM speed regulation VR:potentiometer speed regulation S:Fixed speed T:Two-phase version |
2 | Rated Voltage: | 12V DC | 12V DC | 24V DC | 24V DC | |
3 | Working voltage range: | 5-12V | 5-12V | 5-28V | 5-28V | The pump can out put constant power when the voltage is higher than rated voltage. |
4 | Rated Current: | 0.75A | 1.6A(2A) | 1A(1.3A) | 1.3A(1.7A) | Closed outlet current(open outlet current) |
5 | Input Power: | 7W(9W) | 20W(25W) | 24W(30W) | 30W(40W) | Closed outlet power(open outlet power) |
6 | Max. Flow rate: | 500L/H | 700L/H | 750L/H | 850L/H | Open outlet flow |
7 | Max. Head: | 4M | 8M | 10M | 12M | Static lift |
8 | Min. power supply: | 12V-1A | 12V-2A | 24V-2A | 24V-2A |
.Additional function instructions
1 | K-jam protection | When the impurity enters the rotor chamber, the rotor stops running, and the pump stops running as well. | |
2 | Dry run protection | The pump will stop working when no enough water inside pump. | |
3 | Overloading protection | When the voltage is unstable or exceeds the rated power, the pump will stop working. | |
4 | Power reverse connection | Wrong connection of the power supply(positive and negative), the water pump will stop running, and then re-connected, can work normally. | |
Built-in pump driver | ![]() | Suitable for non - diving installation, medium below 60 degrees | |
The pump driver is external | ![]() | Submersible installation, high temperature resistance |
.Installation Drawing

Notice: The pump is not self-priming pump. When install, please make sure there is enough water in pump gland. Meanwhile, the pump must be installed below the liquid level in the tank.
.Head flow curve

.Dimension and appearance

.Failure and maintenance
Failure and maintenance | |||
Failure | Reason | Solutions | |
1 | Large current and small flow | Impurities in the rotor | injection water from the outlet to clean the inside |
2 | stop working and current is unstable | The rotor is stuck | Clean foreign matter makes rotor stuck |
Stop working and short circuit | Control board is damaged | Change a new pump | |
Stop working and no current | Check the power cord | Reconnect the power | |
3 | Big noise | Impurities in the pump | Clean the impurities |
Air in the pump and can't get out | Put the outlet upwards, makes water no air | ||
no water in the pump, dry run | Make sure enough water inside |
.Notice
- It is strictly forbidden to use liquids with impurities greater than 0.35mm and ceramic or magnetic particles.
- If it is not used for long time,make sure water inside pump before power on.
- Do not let pump dry run
- If not used for long time, please make sure cord connection correctly.
- If use in low temperature environment, please make sure the water won't be frozen or thick.
- Please check if there is water on connection plug, and clean it before use.