Brushless DC Water Pump: DC45B
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Product Rendering
Driver external version Driver built-in version
Product Features
Product Name: Brushless DC Water Pump: DC45B Weight： 0.3kg Model No.： DC45B Lifespan： ≥30000hContinuous Protection grade： IP68 Colour： Black Certifications： CE,ROSH Housing material： PPO+30%GF Noise level： ≤35dB Sealing： ≥0.5MPa（5kg） Insulation class： H级（180°） Principle of operation： Centrifugal pumps, magnetic pumps Application： Cooling circulation systems Scope of use
Type of liquid used：
Oily media, water, acids, alkalis, salts and other fluid liquids Temperature of liquid used：
-30°—100°Three-phase plate internal non-submersible / three-phase plate external submersible
Speed control method：
*PWM speed regulation: amplitude 5V 50-800HZ can be customised.
*0-5V speed regulation
*Potentiometer speed regulation: resistance range 4.7K ~ 20K
Type of power supply：
DC power supply, solar panel, battery Basic parameters (parameters can be customised)
Product Model DC45B-1240PWM
DC45B-1240VR
DC45B-1240S
DC45B-1280PWM
DC45B-1280VR
DC45B-1280S
DC45B-24100PWM
DC45B-24100VR
DC45B-24100S
DC45B-24120PWM
DC45B-24120VR
DC45B-24120S
PWM:PWM speed regulation (50-800HZ/ 5V)
VR:0~5V/potentiometer speed regulation
S:Fixed speed
T:Two phase version
Rated Voltage 12V DC 12V DC 24V DC 24V DC Operating Voltage Range 5-12V
5-12V
5-26V
5-26V
Within this range, the pump can work normally Rated current 0.75A
1.6A（2A）
1A（1.3A）
1.3A（1.7A）
Closed outlet current (open pumping current) Input power 9W（12W）
20W（25W）
24W（30W）
30W（40W）
Closed outlet power (open pumping power) Maximum flow rate 600L/H
700L/H
750L/H
850L/H
Open-port flow rate Maximum head 5M
8M
10M
12M
Static head Minimum input power 12V-1A
12V-2A
24V-2A
24V-2A
Description of additional functions
Jamming protection Pump stops working when jammed Water shortage/idling protection The pump will stop (8 seconds) and run (3 seconds) cyclically when the pump runs out of water or idles, customised protection strategies are available Overload protection When the voltage is unstable or for other reasons exceeds the rated power of the pump, the pump stops running Reverse power connection The pump stops running when the positive and negative poles of the power supply are reversed, and then works normally after reconnecting the power supply Pump driver built-in 
Suitable for external land use Pump driver external 
Suitable for high temperature or corrosive solution submersible installation Flow rate and head curve
Dimensional drawings
Parameter Test Installation Diagram
Note: This product does not have the function of self-priming, so when installing, you need to ensure that there is enough water in the gland cavity, i.e. you need to ensure that the centre of the pump is lower than the liquid level in the tank when installing, in order to ensure that the pump can operate normally!
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