ZKSJ DC50G Brushless Pump – 40L/MIN, 8M Head, PWM Speed Control

$68.90

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Model & Voltage DC50G-1260A Variable SpeedNo Built-in Power Supply DC50G-2480A Variable SpeedNo Built-in Power Supply DC50G-1260S Fixed SpeedPower Supply Not Included DC50G-2480S Fixed SpeedPower Supply Not Included DC50G-1260A variable speed DC pumpequipped with power supply DC50G-2480A variable speed DC pumpequipped with power supply DC50G-1260S fixed speed DC pumpsupplied with power adapter DC50G-2480S fixed speed DC pumpsupplied with power adapter

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Product Overview

The ZKSJ DC50G is a high-performance brushless DC pump available in T Series (2-phase) and S/A Series (3-phase) options, delivering 32-40L/MIN flow with 4-8M head. The 3-phase series features sensor-less intelligent program drive, supports PWM, 0-5V analog signal, and potentiometer speed control, IP68 waterproof, up to 100°C temperature resistance, and >30,000 hours lifespan. Widely used in water circulation, cooling systems, solar systems, chemical liquid transfer, and more.

Key Features

#	Icon	Feature	Benefit
1	⚡	DC Low Voltage Safe	12V/24V low voltage – no shock risk
2	🔇	Low Noise Operation	<40dB – quiet operation
3	🧊	Separable Pump & Driver	External driver for 3-phase series – up to 100°C
4	🔒	Magnetic Isolation Design	Complete water-electricity separation – IP68
5	🧪	Corrosion Resistant	PPS+30%GF optional – acid, alkali, oil resistant
6	🎛️	Multiple Speed Control	PWM/0-5V/potentiometer optional
7	🛡️	Multi-Protection	Lock protection, reverse protection, over-voltage/current protection
8	⏱️	Long Lifespan	>30,000 hours continuous
9	🚀	Soft Start	No current impact – direct solar panel connection
10	🔧	Maintenance-Free	Ceramic shaft + carbon fiber sleeve

Product Specifications

NO.	Item	Specs
1	Dimensions / Weight	99.4×92.5×69.6mm / 480g
2	Outlet Diameter	1/2" thread (M20)
3	Inlet Diameter	1/2" thread (M20)
4	Driving Mechanism	Brushless, magnetic isolated design
5	Housing Material	ABS / PES/SPS/PPS/PA66+30%GF (Optional)
6	Condition of Use	Continuous work, submersible or land use (non-self-priming)
7	Suitable Medium	Water, oil, acid/alkaline liquids (pre-test for special liquids)
8	Max Working Temp	60°C (T series) / 100°C (S/A series)
9	Power Consumption	2.5W~48W (T series) / 2.5W~86.4W (S/A series)
10	Rated Voltage	12Vdc or 24Vdc
11	Voltage Range	5-14Vdc (12V) / 5-26Vdc (24V)
12	Max Load Current	2.0A (T series) / 4.5A (S/A series)
13	Max Horizontal Flow	32L/MIN (T series) / 40L/MIN (S/A series)
14	Max Static Lift	4M (T series) / 8M (S/A series)
15	Noise	<40dB
16	Waterproof Rating	IP68 (submersible)
17	Lifespan	>30,000 hours
18	Power Supply	Solar panel, battery, adapter, or other power source
19	Protection	Dry-run protection, lock protection (customizable)

T Series vs S/A Series Comparison

Comparison	T Series (2-Phase)	S/A Series (3-Phase)
Drive Method	Hall sensor driving	Sensor-less intelligent program drive
PCB Location	Internal (inside pump body)	External (outside pump body – high temperature resistant)
Max Working Temp	60°C	100°C
Max Flow	32L/MIN (1920L/H)	40L/MIN (2400L/H)
Max Head	4M	8M
Power Consumption	2.5W~48W	2.5W~86.4W
Speed Control	Not supported	PWM/0-5V/Potentiometer optional
Protection	Basic	Lock/Reverse/Over-voltage/Soft start

📌 3-phase DC is completely different from 3-phase AC. 3-phase DC means 3 pairs of magnetic polarity + sensor-less, power supply same as common DC pump.

Speed Control Connection Guide

1. PWM (50-800HZ/Amplitude 5V) Speed Control

Connect the yellow wire to the control system's PWM signal output, connect the black wire to the ground lead, and leave the red wire disconnected.

2. VR (0-5V) Potentiometer Speed Control

Connect the red and black wires to both ends of the potentiometer, and connect the yellow wire to the middle of the potentiometer. Turn the potentiometer to adjust speed.

📌 Speed control function is optional/customizable. Standard models do not include speed control. Please contact us if you need this feature.

Product Features

Feature	Description
✅ Small Size, High Efficiency	Compact design, powerful performance
✅ Ceramic Shaft + Carbon Fiber Sleeve	Wear-resistant, maintenance-free
✅ IP68 Waterproof	Fully waterproof – submersible installation
✅ Brushless & Pollution-Free	No carbon brushes, long lifespan
✅ OEM/ODM Service	Pump control system design available

Selection Guide

Need	Recommended Series	Description
Normal temp media, low power	T Series (2-Phase)	4M head, 32L/MIN, ≤60°C
High temp media, high head	S/A Series (3-Phase)	8M head, 40L/MIN, ≤100°C
PWM speed control needed	S/A Series + PWM	Supports PWM signal speed control
Potentiometer control needed	S/A Series + VR	Supports 0-5V potentiometer speed control

Applications

Category	Applications
🏭 Industrial Circulation	Equipment cooling, water circulation systems
☀️ Solar Systems	Soft start – direct solar panel connection
🧪 Chemical/Laboratory	Acid/alkaline liquid transfer
🐟 Aquarium/Ponds	High flow circulation, quiet operation
🔥 High Temperature Circulation	S/A series up to 100°C
💻 PC Water Cooling	Quiet, efficient cooling

❓ FAQ – Frequently Asked Questions

Question	Answer
What's the difference between T and S/A series?	T series is 2-phase Hall drive with internal PCB, 60°C max. S/A series is 3-phase sensor-less intelligent drive with external PCB, 100°C max, supports speed control.
Is 3-phase DC the same as 3-phase AC?	No. 3-phase DC means 3 pairs of magnetic polarity + sensor-less – power supply is same as common DC pump.
What speed control options are available?	PWM (50-800HZ/5V), 0-5V analog signal, and potentiometer (optional/customizable).
Can it be submerged?	Yes. IP68 waterproof – fully submersible.
What's the advantage of the housing material?	PPS+30%GF optional – acid/alkali resistant, high temperature resistant, corrosion resistant.
Do you offer customization?	Yes! OEM/ODM services available – pump control system design offered.