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Professional dual-speed centrifugal fan engineered by ZIEHL-ABEGG for exceptional durability (10+ years), whisper-quiet operation, ultra-low 0.60/0.76A dual-current draw, and high-volume airflow delivering superior heat dissipation for industrial and commercial applications.
📄 DOWNLOAD DATASHEETGerman-engineered by ZIEHL-ABEGG with robust 4.5kg 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 1260/1330 RPM operation with advanced centrifugal fan design delivers exceptionally quiet performance across both speed settings. Precision-balanced impeller, vibration-damping technology, and aerodynamically optimized housing minimize noise, making it ideal for noise-sensitive environments.
Dual-power rating (0.14/0.17kW) with ultra-low dual-current consumption (0.60/0.76A) provides exceptional energy flexibility and efficiency. This innovative design allows optimal operation at different power levels, significantly reducing energy consumption while maintaining excellent performance.
Dual-speed 1260/1330 RPM operation combined with optimized centrifugal impeller generates powerful directional airflow with excellent volume capacity and high static pressure. Superior air movement provides remarkable heat dissipation, making it perfect for industrial applications requiring significant cooling performance.
The ZIEHL-ABEGG RH31L-4EP.WD.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 1260 RPM setting offers ultra-quiet, energy-efficient operation for normal conditions, while the 1330 RPM setting delivers enhanced airflow and static pressure when increased performance is needed.
Intelligent dual-current design provides outstanding energy efficiency with only 0.60A draw at 1260 RPM and 0.76A at 1330 RPM. This automatically optimizes power consumption based on operational requirements, minimizing costs and reducing electrical infrastructure needs.
Standard single-phase 230V operation provides easy integration into existing electrical systems without requiring three-phase power infrastructure. Perfect for commercial, residential, and light industrial applications where three-phase power is not available.
4.5kg lightweight yet robust construction with 36×36×35cm dimensions provides easy installation and excellent portability. German engineering ensures reliable performance with 10+ year lifespan and minimal maintenance requirements.
| Model Number | RH31L-4EP.WD.1R |
| Manufacturer | ZIEHL-ABEGG GERMANY |
| Product Type | Centrifugal Fan DUAL-SPEED |
| Condition | Original new from manufacturer |
| Rated Power | 0.14 / 0.17 kW DUAL POWER |
| Rated Voltage | 1~230 V SINGLE PHASE |
| Frequency | 50/60 Hz |
| Rated Current | 0.60 / 0.76 A DUAL CURRENT |
| Speed | 1260 / 1330 rpm DUAL-SPEED |
| Net Weight | 4.5 kg COMPACT |
| Shipping Dimension | 36 × 36 × 35 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 4.5kg 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 1260 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: 1260 RPM offers energy-efficient airflow for normal conditions, while 1330 RPM delivers enhanced high-volume airflow when increased cooling is needed. This ensures optimal thermal management across varying operational requirements.
A: The RH31L-4EP.WD.1R features an advanced motor design with dual-power ratings (0.14/0.17kW) and ultra-low dual-current draw (0.60/0.76A), significantly reducing operational costs. This allows optimal power consumption based on actual cooling requirements, 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 1260rpm, powerful airflow at 1330rpm, and ultra-low 0.60/0.76A power draw. The 4.5kg German build quality is outstanding—perfect for our laboratory ventilation upgrade! Highly recommended!"
— Dr. Sarah Chen, Laboratory Operations Manager
Research Facility Solutions • Reviewed on: August 27, 2026
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
US$40
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