W2E143-AA09-02 ebm-papst: Precision Thermal Management
The W2E143-AA09-02 is a high-performance AC axial fan designed for applications requiring a specific form factor (typically 172mm diameter round housing) and reliable continuous operation. This model is engineered with a focus on longevity and stable airflow, making it ideal for medical devices, optical equipment cooling, and compact heat exchangers. The unit features a 5-blade sheet steel impeller that is directly welded onto the external rotor motor, ensuring perfect balance and minimal vibration—a key requirement for precision instruments.
Key Technical Data
- Size: 172 mm diameter (Round housing).
- Supply: 230 VAC (Single-phase).
- Motor: M2E052-CA.
- Input Power: 24W – 30W.
- Protection: IP20 / IP44 (depending on installation).
Maintenance & Compatibility for Engineers
Lifecycle State: Active. Frequently sourced for retrofitting legacy cooling systems in 19-inch rack units. Diagnosis Tips: Use a multimeter to check the resistance of the windings if the fan is dead. An open circuit usually indicates a thermal fuse trip within the windings due to overheating (blocked rotor). Installation Advice: Ensure the side mounting holes are used with appropriate vibration dampeners if the fan is mounted on a resonant sheet metal surface. Automation: While it is a fixed-speed AC fan, its operation can be monitored via current sensing relays connected to a TIA Portal managed PLC, triggering an alarm if the current drops (indicating belt/fan failure, though this is direct drive) or spikes (locked rotor).
| Metric | Specification |
|---|---|
| Nominal Speed | 2800 RPM |
| Airflow Max | 375 m³/h |
| Mass | 1.0 kg |
| Temp Range | -25°C to +75°C |
Pro-Tip
For dusty environments, we recommend installing a filter guard. While this slightly reduces airflow, it significantly extends the bearing life by preventing grit intrusion.
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