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Description
MK137-4DK.20.U ZIEHL-ABEGG Centrifugal Motor Fan 1.96kW 3~230/400V 4.5/7.8A 1410/1710rpmZIEHL ABEGG MK137 4DK. 20. U Centrifugal Fan 1. 96kW Dual Speed Industrial Grade MADE IN GERMANY ENERGY SAVING DUAL SPEED CENTRIFUGAL FAN ZIEHL ABEGG MK137 4DK. 20. U Centrifugal Fan German engineered for 10+ years of continuous operation, whisper quiet dual speed performance (1410 1710rpm), energy saving 1. 96kW motor, and high static pressure centrifugal airflow the ideal high power cooling solution for demanding industrial and commercial systems.
🇩🇪 MADE IN GERMANY | ENERGY-SAVING DUAL-SPEED CENTRIFUGAL FAN
ZIEHL-ABEGG MK137-4DK.20.U Centrifugal Fan
German-engineered for 10+ years of continuous operation, whisper-quiet dual-speed performance (1410/1710rpm), energy-saving 1.96kW motor, and high-static pressure centrifugal airflow – the ideal high-power cooling solution for demanding industrial and commercial systems.
📄 DOWNLOAD OFFICIAL DATASHEET (PDF)Core Performance Advantages
10+ Years Industrial Durability
ZIEHL-ABEGG German engineering with premium ball bearings, reinforced housing, and robust 21kg build. Exceeds 10+ years of continuous operation in harsh environments with minimal maintenance.
Ultra-Quiet Operation
Advanced aerodynamic blade profiling and precision dynamic balancing drastically reduce turbulence and noise at both speed settings. Ideal for noise-sensitive environments.
Energy Efficient Low Power
Consumes only 1.96kW with 4.5/7.8A current draw (3~230/400V). Dual-speed operation optimizes energy usage – perfect for 24/7 continuous duty cycles.
High-Volume Centrifugal Airflow
Powerful dual-speed centrifugal airflow (1410/1710 rpm) delivers exceptional static pressure and directional air movement. Provides superior heat dissipation for large industrial systems.
Industry Applications
The MK137-4DK.20.U 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 | MK137-4DK.20.U (177744) GENUINE | 'Condition | Original new from manufacturer | ')
| Power | 1.96 kW ENERGY EFFICIENT | ')||
| Voltage | 3~230/400V THREE PHASE | ')||
| Current | 4.5 / 7.8 A DUAL SPEED | ')||
| Speed | 1410 / 1710 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 | 21 kg HEAVY DUTY | ')||
| Shipping Dimension | 45*45*40 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 MK137-4DK.20.U features German-engineered construction with premium ball bearings, reinforced housing, and robust 21kg build. Designed for continuous industrial duty with minimal wear, ensuring a service life exceeding a decade.
🔹 Q2: How quiet is the dual-speed operation?
A: Despite its high airflow capacity, the aerodynamically optimized impeller and precision balancing drastically reduce noise at both speed settings. Well-suited for noise-sensitive environments such as hospitals, labs, and office buildings.
🔹 Q3: How does the dual-speed motor save energy?
A: With optimized current draw of 4.5/7.8A and high efficiency across 230/400V three-phase power, you can select lower speed for reduced energy consumption or higher speed for maximum cooling, lowering operational costs especially in 24/7 applications.
🔹 Q4: What cooling performance can I expect?
A: The dual-speed centrifugal airflow (1410/1710 RPM) delivers exceptional static pressure and volumetric flow, ensuring superior heat dissipation for large 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 HVAC Engineer
"Outstanding German quality from ZIEHL-ABEGG. The MK137-4DK.20.U runs incredibly quiet at both 1410 and 1710rpm while delivering massive centrifugal airflow. The dual-speed 1.96kW motor provides excellent energy flexibility – we use lower speed for overnight cooling and higher speed for peak industrial demand. Build quality is exceptional at 21kg, clearly designed for 10+ years of heavy-duty service. Perfect for our large-scale ventilation system. Highly recommended for any demanding industrial application."
— Jürgen S., Plant Operations Director
✅ Verified Purchase · Reviewed on May 29, 2026
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Beautiful
Format: Kindle
I love omegaverses I had looked at this one multiple times thinking it's just another book about cocky rock star guys that let fame get to their heads and there are parts like that so I wasn't 100% off. I started reading the second book and met the fmc Astraea from the first one,after she had a run in with the aphla from the gym.😁 it gave me the push to stop and read book one first and im so glad I did this book was amazing their was so many characters I fell in love with hoping they will find their happily ever after. the guys were great, the plot was 🎯, and the ending had me 😭😭😭. I was wondering how nate could ever redeem himself, and he did. the last scene with him was sad, but I also felt it was beautiful. thank you to the author for making a beautiful omegaverse book that gave me all the feels. now I'm jumping straight into book two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2025
★★★★★ 4
Knot their Omega
Format: Kindle
It took me a day to really get into the book, there is a lot happening in the beginning of the story. I wish there was more of a time frame because I felt like something’s happened quickly but they were farther away than I thought so that was a little confusing to me. I felt like there was so much happening but also not enough.
As for the story itself I enjoyed it, it was different than other OV I’ve read. Bring the tissues, you will need them. They guys were great, I wish we saw more of Kai and Kenjis relationship. As for Nate…… IYKYK.
I enjoyed this book, my first from this author and look forward to reading about Kamaris story.
Book: ⭐️⭐️⭐️⭐️/5
Spice: 🌶️.5/5
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
★★★★★ 2
Has Potential, Poorly Executed
Format: Kindle
I really really wanted to enjoy this book and was looking forward to reading it. However there were just one too many convoluted plot points, sentences just did not flow nicely at times, and I was left with a lot of confusion on my end. I think it has the bones of being a great story but seems like it was rushed and I had to push myself to finish the last of the book and was left with an unsatisfying ending. It’s definitely different from other omegaverse novels I’ve read but not for good reasons. I really think it could be great but needs some serious tweaking and editing before I’d read it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2025
★★★★★ 5
Secrets, Seduction, and Rockstars!
Format: Kindle
Rockstars, secrets, and off-the-charts chemistry? Sign me up!
Cinder Blaze takes us on a rollercoaster of passion and peril with Knot Their Omega. Blair Vesper, a secret Omega masquerading as an Alpha, strikes a risky deal to tour with Blooming Salvation, a band teetering on the edge of chaos. Enter Icarus Morrigan, the enigmatic manager, and his three complicated and irresistibly sexy rockstars: wild Kenji, icy Kaiser, and fiery Nathaniel.
This book delivers steamy Omegaverse drama, sizzling slow-burn romance, and just the right dash of angst. The tension between Blair and the band crackles like electricity onstage, while the societal stakes add depth to the spicy dynamics.
Short, sharp, and oh-so-sinful Knot Their Omega will have you hooked from the first note!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2024
★★★★★ 5
Wow.
Format: Kindle
Okay I’m usually not one for stand-alone’s I’m an avid series reader but my goodness am I so happy I read this! This story was brilliant & so absolutely mesmerizing. I loved reading about each character and their struggles as well as what helped them to move forward. The ending definitely brought tears to my eyes so hard. I truly wasn’t expecting some of what happened in this story. There is about to be a spoiler I am going to reveal so please stop reading if you don’t want the spoiler !!!! ⚠️ ⛔️ ‼️
I loved that the author didn’t do what most authors do with irredeemable male characters. I truly was hoping that Nate Jr. would be apart of the pack after the way he treated Astrea bc he truly didn’t deserve it. Though I must say you did a wonderful job or redeeming him as a person. I cried my eyes out when he walked into the story. I was truly terrified he was going to be a bad guy to the end. However you truly did him such a justice by having him realize his faults & having him redeem himself in the most wonderful way. I’m so sad that he didn’t get to hear how much his brother loved him & forgave him before dying. But again you wrote that ending so beautifully & I just can’t express how much I loved this story & how you took a different route than most authors I have read have. You are a remarkable author Cinder Blaze & I thank you generously for creating such a masterpiece.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2025
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