Product details
Product Description
The YWF-6D-550-S-137/50-G is a high-efficiency external rotor axial fan designed for HVAC/R and industrial cooling applications where low noise and stable airflow are critical. Equipped with a 6-pole three-phase motor, it operates at lower speed compared to 4-pole models, ensuring quieter performance while maintaining consistent airflow.
Built with a compact and durable structure, this fan offers energy-efficient operation and long service life. It is widely used in condensing units, cold rooms, evaporators, and ventilation systems.
With IP54 protection, Class F insulation, and a wide operating temperature range, it is suitable for demanding indoor and outdoor environments.
Key Features
- External rotor motor design
- 6-pole motor for low speed & reduced noise
- Stable and energy-efficient airflow
- Durable metal impeller
- Wide operating temperature range (-30°C to +60°C)
- IP54 protection (dust & splash resistant)
- Ball bearing motor for long service life
- Suitable for suction or blowing configurations
Technical Specifications
| Parameter | Value |
|---|---|
| Model | YWF-6D-550-S-137/50-G |
| Fan Type | Axial Fan (External Rotor) |
| Diameter | 550 mm |
| Voltage | 380–415V |
| Phase | 3 Phase |
| Frequency | 50/60 Hz |
| Power | ~550–600 W |
| Current | ~1.20 A |
| Speed | ~900 RPM |
| Air Flow | ~8000 – 8500 m³/h |
| Noise Level | ~70–72 dB |
| Protection Class | IP54 |
| Insulation Class | Class F |
| Ambient Temp | -30°C to +60°C |
| Weight | ~11–12 kg |
Applications
- Condensing units
- Cold rooms & freezer rooms
- Evaporators
- Air-cooled chillers
- Industrial ventilation systems
- Refrigeration equipment
FAQs
Q1: What is the advantage of a 6-pole motor?
It provides lower speed, reduced noise, and smoother airflow compared to 4-pole models.
Q2: Is this fan suitable for industrial use?
Yes, it is a 3-phase fan designed for commercial and industrial HVAC systems.
Q3: Does this model include a safety grill?
Yes, the “G” variant includes a protective grill.
Q4: Can it operate continuously?
Yes, it is designed for continuous-duty operation.
Q5: What environments can it operate in?
It works reliably in -30°C to +60°C ambient conditions.


