RD25S-4DW.4N.2L ZIEHL-ABEGG Centrifugal Fan 3~230/400V 0.31/0.37kW 0.68/1.35A 880/1560rpm

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padding: 28px 20px; } .specs-table td { padding: 12px 16px; } } 🇩🇪 MADE IN GERMANY | ENERGY-SAVING CENTRIFUGAL FAN ZIEHL-ABEGG RD25S-4DW.4N.2L Centrifugal Fan German-engineered for 10+ years of continuous operation, whisper-quiet dual-speed performance (880/1560rpm), energy-saving 0.31/0.37kW motor, and high-static pressure centrifugal airflow – the ideal 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 28kg 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. Ideal for hospitals, offices, residential areas, and noise-sensitive facilities. ⚡ Energy Efficient Low Power Consumes only 0.31/0.37kW with 0.68/1.35A 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 (880/1560 rpm) delivers exceptional static pressure and directional air movement. Provides superior heat dissipation for data centers, power electronics, and industrial systems. Industry Applications The RD25S-4DW.4N.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 RD25S-4DW.4N.2L GENUINE Article No 210474 FACTORY CODE Motor No RZ25S-4DW.4N.2L MOTOR CODE Condition Original new from manufacturer Power 0.31 / 0.37 kW DUAL SPEED Voltage 3~230/400V THREE PHASE Current 0.68 / 1.35 A OPTIMIZED DRAW Speed 880 / 1560 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 28 kg HEAVY DUTY Shipping Dimension 55*55*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 RD25S-4DW.4N.2L features German-engineered construction with premium ball bearings, reinforced housing, and robust 28kg 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. It is 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 0.68/1.35A 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 (880/1560 RPM) 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 – Industrial HVAC Engineer "Exceptional German quality from ZIEHL-ABEGG. The RD25S-4DW.4N.2L runs incredibly quiet at both 880 and 1560rpm while delivering powerful centrifugal airflow. The dual-speed 0.31/0.37kW motor provides excellent energy flexibility. Build quality is outstanding at 28kg – clearly designed for 10+ years of heavy-duty service. Perfect for our industrial ventilation and server room cooling. Highly recommended." — Stefan W., Facility Operations Director ✅ Verified Purchase · Reviewed on May 28, 2026 Show more