On July 20, 2026, LONGWELL opened a project to address a technical specification request for a blowing-configuration AC axial fan based on model requirements. The engineering team reviewed the technical specifications and completed the formal engineering drawing and specification document for model LWAA4E250B-7MKW-48-00 on July 22, 2026.
Documented Engineering Specifications
The standard technical specification defines the electrical, aerodynamic, and physical operating parameters for model LWAA4E250B-7MKW-48-00. The unit uses a single-phase AC drive system equipped with maintenance-free deep groove ball bearings and a cold-rolled sheet impeller.
| Parameter | Value / Specification |
|---|---|
| Model Number | LWAA4E250B-7MKW-48-00 (Version A0) |
| Nominal Voltage & Frequency | 230 VAC, 50 Hz (Range: 198–242 VAC) |
| Speed & Power Input | 1400 rpm, 50 W |
| Rated Current | 0.25 A |
| Max Airflow (Free Air) | 979 m³/h (576 CFM) |
| Noise Level | 53 dB(A) |
| Capacitor Rating | 2 μF |
| Protection Rating & Insulation | IP44, Class F |
| Operating Temperature Range | -30 °C to +60 °C |
Engineering Scope and Deliverables
The technical output includes the completed specification sheet, dimensional drawings showing blowing airflow orientation, terminal wiring diagrams, and specified performance curves. The revised drawing and model documentation were issued to enable customer fit and technical evaluation.
Discuss a similar requirement
For custom AC axial fan specifications or application engineering inquiries, provide your duty point requirements (airflow and static pressure), nominal voltage, operating temperature environment, and mounting dimensions to LONGWELL technical support via our contact page or explore models using the LONGWELL Fan Selector.
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