SKU: 4118986652

RD28S-4DW.4R.2L ZIEHL-ABEGG Centrifugal Fan 3~400V 1.75kW 3.1A 1130rpm

$947.25 $1052.50
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Description

RD28S-4DW.4R.2L ZIEHL-ABEGG Centrifugal Fan 3~400V 1.75kW 3.1A 1130rpmMADE IN GERMANY CENTRIFUGAL INDUSTRIAL FAN ZIEHL ABEGG RD28S 4DW. 4R. 2L Centrifugal Fan German engineered for 10+ years of continuous operation, whisper quiet 1130rpm performance, energy saving 1. 75kW motor, and high static pressure the ultimate cooling solution for demanding industrial systems. DOWNLOAD OFFICIAL DATASHEET (PDF) Core Performance Advantages 10+ Years Industrial Durability ZIEHL ABEGG German engineering with premium ball bearings,

🇩🇪 MADE IN GERMANY | CENTRIFUGAL INDUSTRIAL FAN

ZIEHL-ABEGG RD28S-4DW.4R.2L Centrifugal Fan

German-engineered for 10+ years of continuous operation, whisper-quiet 1130rpm performance, energy-saving 1.75kW motor, and high static pressure – the ultimate cooling solution for demanding industrial systems.

📄 DOWNLOAD OFFICIAL DATASHEET (PDF)

Core Performance Advantages

🏆
10+ Years Industrial Durability
ZIEHL-ABEGG German engineering with premium ball bearings, reinforced housing, and robust 25kg build. Exceeds 10+ years of continuous operation in harsh environments with minimal maintenance.
🔇
Ultra-Quiet Operation
Advanced aerodynamic impeller profiling and precision dynamic balancing drastically reduce turbulence and noise. Ideal for hospitals, offices, residential areas, and noise-sensitive facilities.
⚡
Energy Efficient Low Power
Optimized 1.75kW consumption with 3.1A current draw (3~400V). Cuts energy costs significantly vs conventional fans – perfect for 24/7 continuous duty cycles.
💨
High-Volume Centrifugal Airflow
Powerful 1130 rpm centrifugal airflow delivers exceptional static pressure and directional cooling. Provides superior heat dissipation for data centers, power electronics, and industrial systems.

Industry Applications

The RD28S-4DW.4R.2L is trusted across multiple sectors requiring reliable, high-efficiency centrifugal ventilation.

🏭Industrial Ventilation
❄️Commercial Air Conditioning
🧊Industrial Refrigeration
🔥Heating Systems
⚙️Electrical Automation
🔌Frequency Converters
🚄Rail Transportation HVAC
🏢HVAC (FFU/AHU)
🌫️Air Purification Systems
🚗New Energy Vehicles
💻Data Center Cooling
🏥Hospital HVAC Systems
🔬Laboratory Ventilation
📡Telecom Equipment Cooling
🔋Battery Storage Systems
🚢Marine & Shipboard HVAC

Technical Specifications

Model No RD28S-4DW.4R.2L GENUINE
Article No 209904 FACTORY CODE
Motor No RZ28S-4DW.4R.2L MOTOR CODE
Condition Original new from manufacturer
Power 1.75 kW ENERGY EFFICIENT
Voltage 3~400V THREE PHASE
Current 3.1 A OPTIMIZED DRAW
Speed 1130 rpm HIGH AIRFLOW
Frequency 50/60 Hz
Manufacturer ZIEHL-ABEGG GERMANY
HS Code 8414599099
Country of Origin Germany MADE IN GERMANY
Product Type Centrifugal fan INDUSTRIAL GRADE
Warranty 1 year PEACE OF MIND
Net Weight 25 kg HEAVY DUTY
Shipping Dimension 50*50*50 cm
Ship From Hong Kong
Lead Time 5 days
Delivery Time 3-8 days
Ship By DHL / UPS

📦 Shipping, Warranty & Service

Sell and ship only genuine products from factory.

Promise: Meet all factory specs, fit, form, and function.

Shipping From: Dispatched from Hong Kong – fast global distribution hub.

Processing Time: Orders are processed within 5 business days.

Express Delivery: Worldwide delivery in 3-8 business days via DHL / UPS.

Warranty: Full 1-year manufacturer warranty backed by ZIEHL-ABEGG.

30-Day Returns: 30-day return policy & 100% customer satisfaction commitment.

Volume Pricing: For large quantity inquiries: [email protected]

Frequently Asked Questions

🔹 Q1: What makes this fan last over 10 years?
A: The RD28S-4DW.4R.2L features German-engineered construction with premium ball bearings, reinforced housing, and robust 25kg build. Designed for continuous industrial duty with minimal wear, ensuring a service life exceeding a decade.
🔹 Q2: How quiet is the 1130 rpm operation?
A: Despite its high static pressure capability, the aerodynamically optimized impeller and precision balancing drastically reduce noise. It is well-suited for noise-sensitive environments such as hospitals, labs, and office buildings.
🔹 Q3: How does the 1.75 kW motor save energy?
A: With optimized current draw of 3.1A and high efficiency across 400V, it consumes significantly less power than traditional fans, lowering operational costs especially in 24/7 applications.
🔹 Q4: What cooling performance can I expect?
A: The 1130 RPM centrifugal airflow delivers exceptional static pressure and volumetric flow, ensuring superior heat dissipation for industrial machinery, data centers, and HVAC systems.

Need a Reliable High-Performance Centrifugal Fan?

Contact our technical team for application support, bulk quotes, or customized solutions.

📧 Request Technical Support 📊 Request Volume Pricing

⭐ Customer Reviews

★★★★★ Verified Buyer – Senior Industrial Engineer

"The ZIEHL-ABEGG RD28S-4DW.4R.2L exceeded all expectations. It runs extremely quiet at 1130 rpm, delivers powerful centrifugal airflow with excellent static pressure, and the 1.75kW motor saves us significant energy costs. Build quality is rock-solid at 25kg – clearly engineered for 10+ years of heavy-duty operation. Perfect for our industrial ventilation and VFD cooling retrofit. Highly recommended for any application requiring reliable, silent, high-static-pressure airflow."

— Jürgen H., Facility Operations Manager

✅ Verified Purchase · Reviewed on May 8, 2026

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4118986652

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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
M
Verified Purchase
Millergirl258
Birmingham, US
★★★★★ 5
Nice for small dogs
These little toothbrushes are perfect for small breed dogs. They don’t seem to mind getting their teeth brushed and they do an adequate job as long as you don’t wait in between too long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2025
B
Verified Purchase
bill586
Lake Worth, US
★★★★★ 5
Finally a super soft toothbrush made for small dogs...
The texture of the brush is very different from others I’ve tried before. It’s very soft but solid. If you’re looking for a small gentle brush, please don’t hesitate to give it a try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2024
M
Magna
Carnegie, US
★★★★★ 5
Bristles are soft and dense but a little too long for cats but still the best so far.
Very good brushes with dense but soft bristles. The pros are the excellent bristles as they are abrasive enough to actually clean my kitty's teeth. I have to work really fast to clean her teeth. These bristles make the cleaning a bit more efficient compared to the silicone bristles that I have used prior to this. The cons of these brushes is that the length of the bristles are too long. These are better suited for dogs, but for cats, their mouth is a lot smaller. There isn't a lot of space to insert this brush between the inside of my kitty's cheeks and the side teeth. I wish the bristles were shorter. There is no way for me to trim them shorter because then the bristles will no longer be soft. Having said that, these pair of brushes are still the bets so far that I have used. The bristles really makes all the difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2024
M
michael
Pawtucket, US
★★★★★ 5
Works well with cats.
The bristles are nice and soft, so it makes it easier to brush my cat's teeth. It did take a little while for my kitty to get use to the brush, but the more I brushed my cat's teeth, the more he got use to it. This is a great set of toothbrushes that will help keep your pet's teeth and gums healthy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2024
R
Reviews you can (hopefully) use
Grantham, US
★★★★★ 3
Really soft bristles, good for small dogs
My dogs are not the most cooperative when it comes to brushing their teeth. These toothbrushes are very soft which is nice. My dogs licked the toothpaste off and declined to let me brush their teeth but this is not a reflection of the product. Because the toothbrushes are small, these are best for small dogs. They come with clear storage cases which is nice. Just let the tootbrush air dry and store. The top has a pull lid to help remove it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2024

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