Product details
Product Description
The YWF-4D-420-S-102/47-G is a high-performance external rotor axial fan designed for demanding HVAC/R and industrial ventilation applications. Engineered with a robust motor and precision-balanced blades, it ensures powerful airflow, energy efficiency, and long-term durability.
This model is ideal for large condensing units, cold rooms, evaporators, and air-cooled systems, delivering consistent performance even under heavy-duty conditions.
With IP54 protection, Class F insulation, and a wide operating temperature range, it is suitable for both indoor and outdoor installations.
Key Features
- External rotor motor design
- High airflow for large-scale applications
- Low noise and vibration operation
- Durable metal impeller
- Wide operating temperature range (-30°C to +60°C)
- IP54 protection (dust & splash resistant)
- Ball bearing motor for extended service life
- Suitable for suction or blowing configurations
Technical Specifications
| Parameter | Value |
|---|---|
| Model | YWF-4D-420-S-102/47-G |
| Fan Type | Axial Fan (External Rotor) |
| Diameter | 420 mm |
| Voltage | 380–415V |
| Phase | 3 Phase |
| Frequency | 50/60 Hz |
| Power | ~370 / 550 W |
| Speed | ~1350 / 1500 RPM |
| Air Flow | ~5000 – 6200 m³/h |
| Noise Level | ~70 dB |
| Protection Class | IP54 |
| Insulation Class | Class F |
| Ambient Temp | -30°C to +60°C |
| Weight | ~8–9 kg |
Applications
- Condensing units
- Cold rooms & freezer rooms
- Evaporators
- Air-cooled chillers
- Industrial ventilation systems
- Refrigeration equipment
FAQs
Q1: Is this fan suitable for industrial applications?
Yes, this is a 3-phase heavy-duty fan, ideal for industrial HVAC systems.
Q2: Can it operate continuously?
Yes, it is designed for continuous operation with stable performance.
Q3: Does this model include a safety grill?
Yes, the “G” variant comes with a protective grill.
Q4: What is the difference between 4E and 4D models?
4D indicates a 3-phase motor, while 4E is single-phase.
Q5: Where is this fan commonly used?
It is used in large HVAC systems, condensing units, and industrial cooling setups.




