Weiguang YWF6E-550S-137/50-G 550 mm Single-Phase 6-Pole Axial Fan with Grille
The Weiguang YWF6E-550S-137/50-G is a low-speed axial fan featuring a single-phase external-rotor motor, 550 mm steel impeller and protective grille. Its six-pole motor provides quieter operation than the equivalent four-pole fan, making it suitable for refrigeration, HVAC and ventilation applications requiring high airflow at reduced speed.
Features
Energy-efficient external-rotor motor
Low-speed six-pole design
Single-phase capacitor-run motor
Five-blade 550 mm steel impeller
Suction airflow configuration
Protective grille included
Integrated thermal motor protection
Sealed-for-life ball bearings
IP54-rated enclosure
Continuous-duty operation
Specifications
| Specification | Details |
|---|
| Manufacturer | Weiguang |
| Model | YWF6E-550S-137/50-G |
| Fan type | Axial fan with external-rotor motor |
| Impeller diameter | 550 mm |
| Motor type | Single-phase capacitor-run |
| Number of poles | 6 |
| Supply voltage | 220–240 V AC |
| Frequency | 50 Hz |
| Input power | 310 W |
| Operating current | 1.45 A |
| Rotational speed | 900 RPM |
| Maximum airflow | Approximately 7,142 m³/h |
| Noise level | 68 dB(A) |
| Capacitor | 10 µF |
| Airflow direction | Suction |
| Number of blades | 5 |
| Impeller material | SPCC steel |
| Rotor material | Die-cast aluminium |
| Motor protection | Integrated thermal contact |
| Enclosure protection | IP54 |
| Insulation class | F |
| Bearing type | Ball bearings |
| Duty rating | S1 continuous duty |
| Operating temperature | −30°C to +60°C |
| Storage temperature | −40°C to +80°C |
| Net weight | Approximately 11 kg |
| Approvals | CE and CCC |
| Connection | Terminal box |
| Mounting arrangement | Protective grille |
Model Code Identification
YWF – External-rotor axial-fan series
6 – Six-pole motor
E – Single-phase capacitor-run motor
550 – 550 mm impeller diameter
S – Suction airflow direction
137 – 137 mm rotor diameter
50 – 50 mm laminated-core thickness
G – Protective grille assembly
Typical Applications
Commercial refrigeration systems
Cold rooms and freezer installations
Condensing units
Evaporators and air coolers
Air-cooled chillers
HVAC and air-conditioning equipment
Dehumidifiers
Side-wall ventilation systems
General industrial ventilation
Sources: Weiguang manufacturer specification
