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Professional dual-speed centrifugal fan engineered by ZIEHL-ABEGG for exceptional durability (10+ years), whisper-quiet operation, ultra-low 0.89/0.47A current draw, and high-volume airflow delivering superior heat dissipation for industrial and commercial applications.
German-engineered by ZIEHL-ABEGG with robust 11kg construction ensures reliable operation exceeding 10+ years. Premium materials, high-quality ball bearings, and precision manufacturing guarantee exceptional lifespan in demanding environments with minimal maintenance requirements.
Dual-speed 870/570 RPM operation with advanced centrifugal fan design delivers exceptionally quiet performance across both speed settings. Precision engineering, vibration-damping technology, and aerodynamically optimized housing minimize noise, making it ideal for noise-sensitive environments.
Dual-power rating (0.40/0.22kW) with ultra-low dual-current consumption (0.89/0.47A) provides exceptional energy flexibility. This innovative design allows optimal operation at different power levels, significantly reducing energy consumption while maintaining excellent performance.
Dual-speed 870/570 RPM operation combined with optimized centrifugal impeller design generates powerful directional airflow with excellent volume capacity and high static pressure. Superior air movement provides remarkable heat dissipation, perfect for industrial applications requiring significant cooling performance.
The ZIEHL-ABEGG RH50M-SDK.4F.1R is engineered for versatile applications across multiple industries requiring reliable, energy-efficient centrifugal airflow solutions.
Innovative dual-speed design provides exceptional operational flexibility for varying application requirements. The 570 RPM setting offers ultra-quiet, energy-efficient operation for normal conditions, while the 870 RPM setting delivers enhanced airflow and static pressure when increased performance is needed.
Intelligent dual-current design provides outstanding energy efficiency with only 0.47A draw at 570 RPM and 0.89A at 870 RPM. This automatically optimizes power consumption based on operational requirements, minimizing costs and reducing electrical infrastructure needs.
Advanced three-phase 400V motor provides smooth, efficient power delivery with superior reliability for industrial applications. Three-phase technology offers better power factor, smoother torque delivery, and higher efficiency compared to single-phase alternatives.
11kg robust construction with 55×55×40cm dimensions provides excellent stability and durability. German engineering ensures reliable performance with 10+ year lifespan and minimal maintenance requirements.
| Model Number | RH50M-SDK.4F.1R |
| Manufacturer | ZIEHL-ABEGG GERMANY |
| Product Type | Centrifugal Fan DUAL-SPEED |
| Condition | Original new from manufacturer |
| Rated Power | 0.40 / 0.22 kW DUAL POWER |
| Rated Voltage | 3~400 V THREE PHASE |
| Frequency | 50/60 Hz |
| Rated Current | 0.89 / 0.47 A DUAL CURRENT |
| Speed | 870 / 570 rpm DUAL-SPEED |
| Net Weight | 11 kg MEDIUM DUTY |
| Shipping Dimension | 55 × 55 × 40 cm |
| Country of Origin | Germany |
| HS Code | 8414599099 |
| Warranty | 1 Year Manufacturer Warranty |
Shipping, Warranty & ServiceShipping From: 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.
Product Guarantee: We sell only genuine ZIEHL-ABEGG products guaranteed to meet all factory specifications for fit, form, and function.
Customer Satisfaction: Enjoy a 30-day return policy and our commitment to 100% customer satisfaction.
For Large Quantity Inquiries: Please contact our sales team at [email protected] for volume pricing and custom quotations.
A: The robust 11kg German-engineered construction incorporates premium materials, precision manufacturing standards, high-quality industrial ball bearings, and reinforced components. The centrifugal fan features a dynamically balanced impeller and enhanced motor protection, ensuring long-term reliability in demanding continuous operation environments.
A: This centrifugal fan is engineered for ultra-quiet operation with dual-speed flexibility. At 570 RPM, it delivers near-silent performance ideal for noise-sensitive environments. The advanced aerodynamic impeller design, precision balancing, and vibration-damping technology minimize noise across both speed settings.
A: The dual-speed operation provides exceptional flexibility: 570 RPM offers energy-efficient airflow for normal conditions, while 870 RPM delivers enhanced high-volume airflow when increased cooling is needed. This ensures optimal thermal management across varying operational requirements.
A: The RH50M-SDK.4F.1R features an advanced motor design with dual-power ratings (0.40/0.22kW) and ultra-low dual-current draw (0.89/0.47A), significantly reducing operational costs. Three-phase 400V operation provides superior power factor and smoother operation, resulting in exceptional energy savings.
Contact our technical specialists for application-specific recommendations, performance data, or volume pricing for your industrial ventilation and cooling requirements.
Request Technical Support Request Volume Pricing"Excellent ZIEHL-ABEGG dual-speed centrifugal fan! Incredibly quiet at 570rpm, powerful 870rpm airflow, and ultra-low 0.89/0.47A power draw. The 11kg German build quality is outstanding—perfect for our noise-sensitive HVAC application!"
— Markus Weber, HVAC Systems Engineer
Commercial Climate Solutions • Reviewed on: June 8, 2026
Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
US$40
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