ZKSJ DC40F Pump with Float Switch – 12V/24V Auto Submersible pump

$29.90

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Model & Voltage DC40F-12V (12V DC) DC40F-24V (24V DC) with power supply (12V DC) with power supply (24V DC) with speed control (24V DC) 12V DC: Built-in Overload & Dry-Run Protection 24V DC: Built-in Overload & Dry-Run Protection

Color black

Quantity

12V/24V Optional · IP68 Submersible · Quiet <40dB · 30,000hr Life – For Water, Oil, Mild Acid/Alkaline Liquids

Key Selling Points

Silent Brushless Operation (<40dB) – Three-phase sine wave control eliminates high-frequency noise, making it quieter than a refrigerator. Works in bedrooms without disturbance.

6M Head, 960L/H Max Flow – The 24V version delivers 960L/H with a 6M vertical lift. From basement to rooftop – one pump handles it.

Triple Protection for Peace of Mind – Dry-run protection, jam protection, and programmable over-current detection. The pump protects itself.

Oil & Acid/Alkaline Resistant – Housing options include PPS or PA66+30%GF. Compatible with water, oil, mild acids, and alkalis (pre-test recommended for special liquids).

Highly Customizable, OEM Friendly – Supports PWM speed control, 0-5V analog signal, constant power, constant speed, and MPPT for solar. Pay only for what you need.

Fits Anywhere – Palm-Sized – Dimensions: 88.5×64.8×43.8mm (smaller than a deck of cards). Suitable for submersible or in-line installation (non-self-priming).

Applications

Icon	Application	Description
🚤	Marine & Boats	Bilge drainage, engine cooling circulation
🔬	Lab Equipment	Acid/alkali circulation, reactor feeding
🎵	Music Fountains	High-frequency start/stop, smooth sine wave control
☀️	Solar Systems	Optional MPPT – starts even in low light
🏭	Industrial Equipment	Oil circulation, cooling, wastewater
🌱	Hydroponics & Aquariums	Silent circulation, auto water change

Quick Specs

Parameter	Value
Voltage	12V / 24V DC
Max Flow Rate	960 L/H
Max Head	6 Meters
Power Range	2.5W ~ 28.8W
Noise Level	<40dB
Waterproof Rating	IP68 (fully submersible)
Lifespan	≥30,000 hours
Max Media Temp	60°C
Inlet/Outlet	1/2" thread (M20mm)
Dimensions	88.5×64.8×43.8mm
Weight	230g

Model Selection

Model	Voltage	Max Current	Max Head	Max Flow	Power
DC40F-1240	12V	1.2A	4.0m	780 L/H	14.4W
DC40F-2460	24V	1.2A	6.0m	960 L/H	28.8W

Dimensions of pump

图片关键词

Important Notes

⚠️ 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 below).

❓ FAQ – Frequently Asked Questions

Question	Answer
Is this pump really quiet?	Yes! With three-phase sine wave control, noise is <40dB – quieter than a refrigerator. Perfect for bedrooms and quiet environments.
Can I use it for saltwater?	Yes, the pump is compatible with saltwater. For prolonged marine use, we recommend the PPS housing option for maximum corrosion resistance.
What liquids can it handle?	Water, oil, mild acids, and alkalis. For special liquids, please pre-test or consult our technical team.
Can I adjust the speed?	Yes! The pump supports PWM speed control, 0-5V analog signal, or potentiometer adjustment. We can customize it to your needs.
Is it submersible?	Yes, IP68 rated – fully submersible. You can also use it in-line (non-self-priming).
What's the difference between DC40F-1240 and DC40F-2460?	DC40F-1240 is 12V with 4.0M head and 780L/H flow. DC40F-2460 is 24V with 6.0M head and 960L/H flow.
Can I use it with solar panels?	Yes! We offer MPPT customization for solar power systems – ensures reliable startup even in low light.
Is it safe for continuous operation?	Absolutely. Designed for 24/7 continuous operation with a lifespan of ≥30,000 hours.
Do you offer custom solutions?	Yes! We provide OEM and ODM services. Customize voltage, flow, head, materials, speed control, and more.
What's the maximum liquid temperature?	60°C. For higher temperatures, please consult us – we may have alternative solutions.