Product details
Product Description
The YWF-4E-550-S-137/50-G is a high-performance external rotor axial fan designed for HVAC/R and ventilation applications. Equipped with a 4-pole single-phase motor, it delivers strong airflow while maintaining energy efficiency and stable operation.
Built with a durable structure and precision-balanced impeller, this fan ensures long service life and reliable performance. It 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 both indoor and outdoor environments.
Key Features
- External rotor motor design
- 4-pole motor for high airflow performance
- Single-phase operation (220–240V)
- Durable metal impeller (SPCC steel)
- 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-4E-550-S-137/50-G |
| Fan Type | Axial Fan (External Rotor) |
| Diameter | 550 mm |
| Voltage | 220–240V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |
| Power | 550 W |
| Current | ~2.55 A |
| Speed | ~1300 / 1380 RPM |
| Air Flow | ~7500 – 8500 m³/h |
| Noise Level | ~72–75 dB |
| Protection Class | IP54 |
| Insulation Class | Class F |
| Capacitor | ~12 µF |
| Ambient Temp | -30°C to +60°C |
| Weight | ~12 kg |
Applications
- Condensing units
- Cold rooms & freezer rooms
- Evaporators
- Air-cooled chillers
- Ventilation systems
- Refrigeration equipment
FAQs
Q1: Is this fan suitable for single-phase power supply?
Yes, it is designed for 220–240V single-phase operation.
Q2: What type of motor does it use?
It uses a 4-pole single-phase external rotor motor for strong airflow.
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 HVAC systems, cold storage, and refrigeration applications.