ZKSJ DC45E Brushless DC Aquarium Return Pump 1350L/H
ZKSJ DC45E Brushless DC Aquarium Return Pump 1350L/H
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ZKSJ DC45E brushless DC return pump for reef & freshwater aquariums.
✅ Adjustable flow speed via external controller
✅ Ultra‑quiet brushless motor, low power draw
✅ IP68 waterproof, submersible or inline installation
Great for aquarium return lines, water circulation and DIY water projects.

Product Overview
The ZKSJ DC45E is a versatile low‑voltage brushless centrifugal circulation pump favored by DIY hobbyists, aquarium keepers and commercial wholesale buyers. Built with PPS+30%GF corrosion‑resistant housing and magnetic‑isolation drive structure, it reaches IP68 waterproof rating and supports full submersible or inline land‑based installation.
Delivering max flow from 900‑1350L/H and static head ranging 2.5M‑9M, with certified continuous service life ≥30,000 hours. This multi‑purpose DC pump fits nano reef aquarium circulation, rockery landscape circulation, small indoor fountain, household water transfer & irrigation, custom PC liquid cooling loops, residential floor‑heating hot‑water circulation, as well as EV electronic thermal management. It is the reliable cost‑effective solution for 24/7 non‑stop continuous running projects.
Why Choose ZKSJ DC Water Pumps
🏆 Quiet‑Oriented Sine‑Wave Control Tech We pioneered sine‑wave silent motor control technology back in 2015, specializing in low‑noise brushless circulation pumps for consumer & industrial scenarios.
🔧 15+ Years Specialized In DC Pump R&D & Manufacturing In‑house development and production for brushless DC water pumps, mature process for stable long‑run performance.
🛡️ Global Distributor & After‑sales Support Complete worldwide distributor network to deliver responsive local after‑sales support for end‑users and bulk partners.
🌍 Trusted OEM & ODM Manufacturer Long‑term OEM supplier for multiple international pump brands, customizable parameters, logo and driving solutions for wholesale orders.
Key Features & Benefits
| # | Icon | Feature | Practical Benefit |
|---|---|---|---|
| 1 | ⚡ | Brushless EC Magnetic‑Isolation Motor | No carbon‑brush wear, high energy efficiency, zero carbon contamination, truly maintenance‑free continuous operation |
| 2 | 📏 | Compact Light‑Weight Build | 89×68×76 mm, only 0.3 kg net weight. Small footprint, easy mounting inside tight DIY loops, equipment cabinets or fountain structures |
| 3 | 💰 | Optimized Low‑Power Consumption | Working power 7‑40W. Great power‑saving performance for day‑and‑night non‑stop circulation tasks |
| 4 | ⏱️ | ≥30,000 Hours Continuous Lifespan | Specially engineered for 24‑7 running; ideal for reef tanks, liquid cooling, floor‑heating and thermal management systems |
| 5 | 🛡️ | Safe 12V / 24V Low‑Voltage DC | Spark‑free low‑voltage design, safe for indoor aquariums, fountains, home DIY and enclosed electronic cooling projects |
| 6 | 🔇 | Ultra‑Quiet ≤35dB Operation | Library‑level low noise. Will not disturb fish, coral, household rest or office environments |
| 7 | 💧 | IP68 Full Submersible Waterproof | Supports complete underwater submersion for fountain / rockery / aquarium; also works inline out‑of‑water |
| 8 | ☀️ | Wide Working Voltage Compatibility | 12V & 24V stock versions; broad working range 5‑28V DC, perfectly compatible with solar panel & battery power supply |
| 9 | 🧪 | PPS+30%GF Reinforced Housing | High‑temperature tolerant, resists weak acid & weak alkali, handles diverse common circulating medium |
| 10 | 🛡️ | Built‑in Multi‑Directional Protection | Impeller jam protection, dry‑run protection, overload protection, prevent motor burnout under unexpected working conditions |
Complete Product Specifications
| Parameter | Specification |
|---|---|
| Model | DC45E Series |
| Pump Type | Brushless DC Centrifugal Circulation Pump |
| Inlet / Outlet Thread | G1/2" (20mm) |
| Static Max Head | 2.5 M ‑ 9 M (model‑dependent) |
| Max Flow Rate | 900 ‑ 1350 L/H (model‑dependent) |
| Rated Voltage | 12V DC / 24V DC |
| Working Voltage Range | 5V‑28V DC |
| Input Power | 7W‑40W |
| Physical Dimension | 89×68×76 mm |
| Net Weight | 0.3 kg |
| Housing Material | PPS+30%GF |
| Waterproof Grade | IP68 (submersible available) |
| Rated Continuous Lifespan | ≥30 000 Hours |
| Noise Level | ≤35 dB |
| Certifications | CE, RoHS |
| Optional Function | PWM / 0‑5V analog / potentiometer speed‑control for custom orders |
Note: Multiple sub‑models under DC45E deliver different flow‑head performance. Speed‑control signal versions are available for project customization.
Built‑in Multi‑Protection Functions
| Protection | Working Description |
|---|---|
| 🛑 Impeller Jam Protection | Automatically cuts output power when impeller gets stuck by impurities, avoiding coil burnout |
| 💧 Dry‑Run Protection | Activates auto stop‑restart cycle when pump operates without water; protection logic adjustable for bulk OEM orders |
| ⚡ Overload Protection | Power‑limiting auto‑shutdown triggered under over‑load circumstance to safeguard internal electronic driver |
Main Application Scenarios
⛰️ Rockery & Landscape Circulation — Garden rockery water feature, landscape ornamental water circulation
⛲ Small Indoor Fountain — Ultra‑quiet decorative table‑top & floor fountain water pump
🏠 Household Water Transfer — Home water circulation, balcony irrigation, domestic water circulation system
💻 PC Liquid Cooling & Equipment Cooling — Custom PC water‑cooling loop, industrial small‑device liquid cooling
🌡️ Floor‑Heating Hot‑Water Circulation — Household floor heating circulating hot‑water pump
🚗 EV Electronics Thermal Management — New‑energy vehicle electronic component auxiliary cooling
☀️ Solar‑Powered Circulation System — Solar water heating circulation powered by battery / solar panel
❓ FAQ — Frequently Asked Questions
| Question | Answer |
|---|---|
| Q: What benefits does PPS+30%GF pump housing bring? | A: Excellent high‑temperature resistance plus weak acid & alkali corrosion resistance, adapts to many kinds of circulating liquid media. |
| Q: Is DC45E really ≤35dB quiet in operation? | A: Yes. Nominal running noise ≤35dB, quiet enough for home aquarium, indoor fountain and bedroom‑near installation. |
| Q: What voltage options are offered? | A: Stock 12V DC and 24V DC versions. Wide operating input 5‑28V DC supports solar and battery‑driven projects. |
| Q: Does DC45E include dry‑run protection? | A: Yes. Integrated dry‑run protection, impeller jam protection and overload protection out‑of‑box. Custom protection logic is acceptable for large‑volume orders. |
| Q: Do you support OEM logo modification and bulk wholesale? | A: Yes. We provide full‑set OEM / ODM service: custom logo, parameter tuning, different speed‑control options, large‑volume wholesale for distributors and project integrators. Contact our sales team for quotation. |

👇 Contact Us for ZKSJ DC45E · Wholesale Welcome · OEM/ODM Available
💬 Bulk orders get discounted pricing. Distributors, brands, and project contractors – welcome to partner with us!
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