Product details
Product Description
The YWF-4E-400-S-102/47-G is a high-performance external rotor axial fan designed for HVAC/R and industrial ventilation applications. Built with a robust motor structure and optimized blade design, it delivers reliable airflow with low noise and energy-efficient operation.
This model is widely used in condensing units, cold rooms, evaporators, air-cooled systems, and refrigeration equipment, ensuring stable performance even in demanding environments.
With IP54 protection, Class F insulation, and a wide operating temperature range, it is ideal for both indoor and outdoor installations.
Key Features
- External rotor motor design
- High airflow with stable performance
- Low noise operation (~67 dB)
- Durable metal impeller
- Wide operating temperature range (-30°C to +60°C)
- IP54 protection (dust & splash resistant)
- Ball bearing motor for long life
- Suitable for suction or blowing configurations
Technical Specifications
| Parameter | Value |
|---|---|
| Model | YWF-4E-400-S-102/47-G |
| Fan Type | Axial Fan (External Rotor) |
| Diameter | 400 mm |
| Voltage | 220–240V |
| Frequency | 50/60 Hz |
| Power | 180 / 250 W |
| Current | 0.82 / 1.20 A |
| Speed | 1380 / 1520 RPM |
| Air Flow | 3540 – 4165 m³/h |
| Noise Level | ~67 dB |
| Protection Class | IP54 |
| Insulation Class | Class F |
| Capacitor | 6 µF / 450V |
| Ambient Temp | -30°C to +60°C |
| Weight | ~6 kg |
Applications
- Condensing units
- Cold rooms & freezer rooms
- Evaporators
- Air-cooled chillers
- Ice machines
- Ventilation systems
- HVAC equipment
FAQs
Q1: Is this fan suitable for outdoor use?
Yes, it comes with IP54 protection, making it suitable for outdoor environments.
Q2: Can this fan be used for both suction and blowing?
Yes, it supports both configurations depending on installation.
Q3: Does this model include a safety grill?
Yes, the “G” variant includes a protective grill.
Q4: What type of motor is used?
It uses a single-phase external rotor motor (4-pole).
Q5: Where is this fan commonly used?
It is widely used in condensing units, evaporators, cold rooms, and HVAC systems.

