Product details
Product Description
The YWF-4D-550-S-137/50-G is a high-performance external rotor axial fan designed for HVAC/R and industrial cooling applications. Featuring a 4-pole three-phase motor, it delivers strong airflow, making it ideal for medium to large-scale refrigeration and ventilation systems.
Its rugged construction and precision-balanced impeller ensure efficient performance, durability, and long operational life. This model is widely used in condensing units, cold rooms, evaporators, and air-cooled 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
- 4-pole motor for high airflow performance
- Designed for medium to heavy-duty applications
- Durable metal impeller
- Wide operating temperature range (-30°C to +60°C)
- IP54 protection (dust & splash resistant)
- Ball bearing motor for long lifespan
- Suitable for suction or blowing configurations
Technical Specifications
| Parameter | Value |
|---|---|
| Model | YWF-4D-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 W (50Hz) |
| Current | ~1.30 A |
| Speed | ~1320 RPM |
| Air Flow | ~9000 m³/h |
| Noise Level | ~75 dB |
| Protection Class | IP54 |
| Insulation Class | Class F |
| Ambient Temp | -30°C to +60°C |
| Weight | ~12 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 use?
Yes, it is a 3-phase heavy-duty fan, suitable for commercial and industrial HVAC systems.
Q2: What type of motor does it use?
It uses a 4-pole three-phase external rotor motor for high airflow output.
Q3: Does this model include a safety grill?
Yes, the “G” variant includes a protective grill.
Q4: Can it run continuously?
Yes, it is designed for continuous-duty operation.
Q5: Where is this fan commonly used?
It is widely used in condensing units, cold storage, and HVAC systems.
