Weiguang YWF4E-550S-137/50-G 550mm Axial Fan with Grille
The Weiguang YWF4E-550S-137/50-G is a 550mm single-phase external-rotor axial fan supplied complete with a protective mounting grille. Designed for commercial refrigeration, condenser and HVAC applications, it delivers approximately 8,452m³/h of high-volume suction airflow.
Features
550mm axial fan and motor assembly
Protective mounting grille included
Single-phase external-rotor motor
Four-pole, 1,300 RPM operation
Approximately 8,452m³/h maximum airflow
Suction airflow configuration
High-performance 550W motor
IP54 dust and moisture protection
Class F motor insulation
Integrated thermal protection
Maintenance-free ball bearings
Terminal-box electrical connection
Suitable for continuous-duty operation
Horizontal or vertical mounting
Specifications
| Specification | Details |
|---|
| Brand | Weiguang |
| Model | YWF4E-550S-137/50-G |
| Fan Type | AC external-rotor axial fan |
| Fan Diameter | 550mm |
| Airflow Direction | Suction |
| Maximum Airflow | Approx. 8,452m³/h at 0Pa |
| Airflow at 20Pa | Approx. 8,173m³/h |
| Supply Voltage | 220–240V AC |
| Nominal Voltage | 230V AC |
| Phase | Single phase |
| Frequency | 50Hz |
| Motor Poles | 4 |
| Rated Speed | 1,300 RPM |
| Input Power | 550W |
| Rated Current | 2.55A |
| Sound Pressure Level | Approx. 72dB(A) at 1 metre |
| Capacitor | 12µF |
| Protection Rating | IP54 |
| Insulation Class | Class F |
| Impeller Material | SPCC steel |
| Rotor Material | Die-cast aluminium |
| Motor Protection | Thermal contact, approximately 150°C |
| Bearing Type | Ball bearing |
| Duty Rating | S1 continuous duty |
| Electrical Connection | Terminal box |
| Mounting Position | Horizontal or vertical |
| Operating Temperature | -30°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Protective Grille | Included |
| Approvals | CE and CCC |
Model Code Identification
YWF – External-rotor axial fan
4 – Four-pole motor
E – Single-phase capacitor motor
550 – 550mm fan diameter
S – Suction airflow
137 – 137mm rotor diameter
50 – 50mm motor lamination thickness
G – Protective grille assembly
Typical Applications
Commercial refrigeration condensers
Condensing units
Cold rooms and freezer rooms
Evaporators and unit coolers
Ice-making equipment
Chillers and dehumidifiers
Heat exchangers
HVAC and industrial ventilation systems
Sources: Weiguang product information
