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Lead Time: Usually ship in 5 days, Ship international
Base in Hongkong, Ship from HongKong
Delivery time around 5-8 days by UPS
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Professional 0.69/1.05KW centrifugal fan designed specifically for Siemens SINAMICS S120 series frequency converters, featuring 1360/1440 RPM dual-speed operation and 1~230V single-phase compatibility. Engineered for exceptional durability exceeding 10 years, ultra-quiet performance, energy-efficient operation with substantial airflow, and reliable pressure development for demanding commercial and industrial drive applications.
Specially engineered as a direct cooling solution for Siemens SINAMICS S120 series frequency converters. The centrifugal design provides optimal airflow and pressure characteristics for cooling S120 power modules, control units, and heat sinks. Compatible mechanical and electrical interfaces ensure seamless integration as a replacement or upgrade fan for S120 drive systems in industrial automation, machinery, and process control applications.
German-engineered ZIEHL-ABEGG construction with 16kg robust centrifugal design ensures reliable, long-term operation exceeding 10+ years in demanding S120 drive environments. Premium industrial-grade materials, precision-balanced centrifugal impeller, heavy-duty single-phase motor components, and reinforced scroll housing guarantee exceptional lifespan for continuous operation in industrial drive applications requiring maximum reliability with single-phase power compatibility.
Optimized 1360/1440 RPM dual-speed operation provides exceptionally quiet performance for Siemens S120 frequency converter cooling, ideal for noise-sensitive industrial environments. Advanced centrifugal aerodynamics with optimized impeller and scroll design minimize turbulence and operational noise across both speed settings. Precision balancing ensures smooth, vibration-free operation critical for maintaining S120 system stability and component longevity.
Dual power rating (0.69KW/1.05KW) with efficient 3.0/4.5A current draw provides optimal energy efficiency for Siemens S120 cooling applications. Advanced single-phase motor design maximizes efficiency while delivering substantial airflow and pressure performance for effective heat dissipation from S120 power components. Single-phase 230V operation ensures compatibility with standard industrial power systems without requiring three-phase installation.
The RG28P-4EK.4I.1R is engineered specifically for Siemens S120 series frequency converters while also serving demanding commercial and industrial applications requiring reliable, efficient single-phase 230V airflow solutions with substantial power, minimal noise, and exceptional performance in pressure-critical environments.
| Model Number | RG28P-4EK.4I.1R |
| Manufacturer | ZIEHL-ABEGG GERMANY |
| Product Type | Centrifugal Fan HIGH-PERFORMANCE |
| Primary Application | Siemens SINAMICS S120 Series Frequency Converters DEDICATED |
| Condition | Original new from manufacturer |
| Rated Power | 0.69/1.05 KW DUAL POWER |
| Rated Voltage | 1~230 V SINGLE PHASE |
| Frequency | 50/60 Hz |
| Rated Current | 3.0/4.5 A |
| Speed | 1360/1440 rpm DUAL SPEED |
| Net Weight | 16 kg INDUSTRIAL GRADE |
| Shipping Dimension | 60 × 40 × 35 cm OPTIMIZED SIZE |
| Country of Origin | Germany |
| HS Code | 8414599099 |
| Warranty | 1 Year Manufacturer Warranty |



Shipping Hub: Dispatched from Hong Kong for efficient global distribution.
Processing Time: Orders are processed and ready to ship within 5 business days.
Express Delivery: Estimated delivery in 3-8 business days worldwide via DHL or UPS.
Warranty: Backed by a full 1-year manufacturer's warranty from ZIEHL-ABEGG.
S120 Compatibility: Guaranteed compatibility and performance for Siemens SINAMICS S120 series frequency converters.
Customer Satisfaction: Enjoy a 30-day return policy and our commitment to 100% customer satisfaction.
For S120 System Integrators & Large Quantity Inquiries: Please contact our sales team at sales@axialfanz.com for volume pricing and custom quotations for ZIEHL-ABEGG S120 cooling solutions.
A: The RG28P-4EK.4I.1R is engineered specifically as a dedicated cooling solution for Siemens S120 drives. Its design parameters (airflow, pressure, electrical characteristics) are optimized to match the thermal management requirements of S120 power modules, control units, and heat sinks. Advantages over generic fans include: 1) Precise airflow and static pressure performance matching S120 cooling requirements; 2) Compatible mounting interfaces and dimensions for seamless S120 integration; 3) Electrical characteristics (single-phase 230V, dual power settings) designed for S120 electrical environments; 4) Reliability and durability standards meeting Siemens drive system expectations; 5) Ultra-quiet operation suitable for S120 installations in noise-sensitive areas. This dedicated design ensures optimal thermal performance, system reliability, and longevity for S120 frequency converters.
A: The 16kg heavy-duty centrifugal construction with reinforced components is specifically designed for the continuous, demanding operation of Siemens S120 drives in industrial environments. Key durability features include: 1) Industrial-grade ball bearings rated for minimum 50,000 hours of continuous operation at S120 typical duty cycles; 2) Thermally optimized single-phase motor windings with Class F or higher insulation for reliable operation in the elevated temperature environments of drive cabinets; 3) Reinforced scroll housing in heavy-gauge materials to withstand pressure forces and resist deformation; 4) Precision-balanced centrifugal impeller with reinforced blade geometry to handle continuous operation without fatigue; 5) Corrosion-resistant materials and coatings suitable for industrial atmospheres. This robust construction ensures the fan meets the rigorous demands of S120 cooling throughout its extended service life.
A: The dual-speed and dual-power capability provides significant operational flexibility for S120 cooling: 1) Lower speed/power setting (1360 RPM, 0.69KW) offers energy-efficient cooling during lighter load conditions, cooler ambient temperatures, or when reduced noise is prioritized; 2) Higher speed/power setting (1440 RPM, 1.05KW) delivers maximum cooling capacity during heavy S120 loads, high ambient temperatures, or demanding process conditions; 3) The ability to switch between settings allows adaptation to seasonal temperature variations without oversizing the cooling system; 4) Dual-speed operation can extend component life by reducing wear during periods of reduced cooling demand; 5) Single-phase 230V operation simplifies installation in facilities without three-phase power. This flexibility makes it ideal for S120 applications with variable operating conditions.
A: Key considerations for S120 cooling fan replacement with RG28P-4EK.4I.1R include: 1) Verify mechanical compatibility with your specific S120 module version regarding mounting hole patterns, overall dimensions, and airflow direction; 2) Ensure electrical compatibility with your S120 cabinet's single-phase 230V supply, including connector type if replacing an existing fan; 3) Confirm that the airflow and pressure characteristics match or exceed the original S120 cooling requirements for your specific drive configuration and load profile; 4) Consider the dual-speed capability and how it will be controlled (manual switch, temperature sensor, or S120 control signal if available); 5) Plan for the 16kg weight during installation, ensuring proper support; 6) Verify that the acoustic performance meets your facility's noise requirements. For specific compatibility questions, consult the datasheet or contact technical support with your S120 model details.
Contact our technical specialists for S120 compatibility verification, application-specific recommendations, performance data, or volume pricing for your drive cooling requirements.
Request S120 Technical Support Request Volume Pricing
Gurantee genuine products from manufacturer
One Year Warranty
AXIALFAN One Year Warranty protects your purchase from Failure during normal use Up to one Year from the date of your purchase.
One Year Coverage from the date of Purchase - Included in the items Price 100% Coverage for Parts and Labor - No deductibles - Included in the items price Items repairs or the full price is refunded to you if we are unable to fix or repair One Year Warranty covers ALL items listed on our website Buyer pay shipping fees at your side when return products, seller pay replacement products' shipping fees.How can I get AXIALFAN One Year Warranty?
AXIALFAN One Year Warranty is included in the items price, you do not need to buy extra protection plan or additional warranties.
How do I purchase a AXIALFAN One Year Warranty?
When you complete the purchase from our website your warranty will be included with the purchase.
How long does coverage last?
Coverage is one year from the date of your purchase
When does coverage start?
Your coverage begins on the date of purchase. If the item you receive is not as it was described, you can return it for a full refund during the first 30 days from payment.
How much is covered?
For replacement payments: You are covered up to the maximum value you paid for the item. Once that amount has been paid out, your warranty is considered fulfilled.
For repairs: You're covered for multiple repairs, up to the maximum value of your item. Once the cost of repairs meets the full purchase price of the item, your warranty is considered fulfilled.
Software: Software issues are not covered.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.




