On July 20, 2026, LONGWELL opened a project to prepare a Chinese technical specification sheet for the LWAA6D900S-5MEB-09 AC axial fan assembly. The engineering team released the technical specification document on July 22, 2026.
Electrical and Air Performance Parameters
The LWAA6D900S-5MEB-09 AC axial fan operates on a 380 V 50 Hz supply with an allowable voltage range of 342 V to 418 V. The unit supports dual-speed operation via star (Y) and delta (Δ) wiring configurations on its two motor windings. Under max free-air conditions, the specified airflow reaches up to 27,089 m3/h at high speed and 20,600 m3/h at low speed.
| Parameter | High Speed (Δ) | Low Speed (Y) |
|---|---|---|
| Rotational Speed (RPM) | 900 | 700 |
| Input Power (W) | 1650 | 1200 |
| Current (A) | 3.9 | 2.5 |
| Max Airflow (m3/h) | 27089 | 20600 |
| Max Airflow (CFM) | 15935 | 12118 |
| Noise Level (dBA) | 80 | 77 |
Mechanical Specifications and Environmental Limits
The assembly features plastic fan blades and maintenance-free deep groove ball bearings rated for S1 continuous operation. Environmental and structural limits documented in the specification include:
- Operating Temperature Range: -30°C to 60°C
- Operating Humidity Range: 0% to 85% RH
- Ingress Protection Rating: IP54
- Insulation Class: Class F
- Expected Lifetime: 30,000 hours (L10 rating at 40°C room temperature, 15% to 65% RH)
- Installation Orientation: Horizontal or vertical installation
The engineering deliverable provides a revised drawing and specification sheet for customer fit evaluation.
View the LWAA6D900S-5MEB-09 technical drawing (PDF)
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