Longwell LWAA2E250B-5MEB-19 AC Axial Fan: Current Specifications and Replacement Guide
The Longwell LWAA2E250B-5MEB-19 AC axial fan delivers robust performance for critical HVAC and industrial ventilation applications. Designed for reliability and operational efficiency, this fan model is a direct solution for engineers specifying new installations or replacing existing units in demanding environments.
Key Technical Specifications
The following nominal data defines the operational parameters of the LWAA2E250B-5MEB-19 fan:
| Parameter | Unit | Rating |
|---|---|---|
| Model No. | — | LWAA2E250B-5MEB-19-00 |
| Nominal Voltage | [VAC] | 220 |
| Voltage Range | [VAC] | 198~242 |
| Frequency | [Hz] | 60 |
| Speed | [rpm] | 2600 |
| Current | [A] | 0.65 |
| Power input | [W] | 130 |
| Air flow (Max) | [m³/h] | 1854 |
| Air flow (Max) | [CFM] | 1091 |
| Noise level | dB(A) | 67 |
| Capacitor | µF | 3 |
| Max ambient Temp | °C | 60 |
| Min ambient Temp | °C | -30 |
| Insulation Class | — | Class F |
| Protection Type | — | IP44 |
| Work system | — | S1 |
Design and Operational Features
The LWAA2E250B-5MEB-19 axial fan incorporates features engineered for extended service life and consistent performance:
- Service Environment: Operates efficiently in temperatures from -30°C to 60°C, with operating humidity up to 90% RH. Applicable at altitudes up to 1000m.
- Life Expectancy: 30,000 hours (L10) at 40°C, 15%-65% RH.
- Balancing: Manufactured and balanced according to JB/T 9101-1999 requirements.
- Vibration: Tested in accordance with JB/T 8689 standards.
- Installation: Designed for flexible horizontal or vertical installation.
- Materials: Impeller constructed from aluminum and magnesium alloys for durability and reduced weight.
- Bearings: Equipped with maintenance-free deep groove ball bearings.
- Motor Protection: Features thermal protection with a disconnection temperature of 150-160°C and a reset temperature of 90-120°C, compliant with GB12350.
- Certifications: CE certified, RoHS and Reach compliant.
Dimensional Data and Airflow Direction
Precise integration requires accurate dimensional planning. The fan features a Ø250mm diameter. Refer to the official LWAA2E250B-5MEB-19 specification sheet (PDF) for detailed product drawings and specific mounting dimensions. Airflow is designated as “Blowing” with the direction indicated on the drawing.
Performance Curve
The fan’s Pressure-Quantity (P-Q) curve provides critical performance data for system design. This curve, found in the full specification document, illustrates the relationship between static air pressure and air volume, enabling engineers to match fan output to specific application requirements.
Important Considerations for Replacements
When specifying the LWAA2E250B-5MEB-19 as a replacement for previous versions (e.g., units procured in 2023), engineers and procurement managers must verify current specifications against legacy models. While nominal voltage (220VAC vs. 230VAC on older labels) falls within the operating range, the ingress protection (IP) rating has been updated. Earlier models may have featured an IP54 rating, whereas the current LWAA2E250B-5MEB-19 specification lists an IP44 rating. Confirm the required IP rating for your specific application before deployment.
For complete technical details, including wiring diagrams and safety warnings, download the comprehensive LWAA2E250B-5MEB-19 Specification Sheet.
Technical Documentation & Resources
Project Gallery & Technical Drawings
Project Item: 6924389546 – Issue specification sheet for LWAA2E250B-5MEB-19
Project Date: 2026-03-21 07:51:44
