Blower — 110V / 220V/400V, blade material Aluminum Alloy. The complete factory specification follows. Made by Ningbo Longwell Electric Technology Co., Ltd. (8 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Blower
- Model Number: LWBE 450mm
- Voltage: 110V / 220V/400V
- Blade Material: Aluminum Alloy
- Material: Plastic + GF
- Speed Control: PWM / 0~10v signal
- Warranty: 1 Year
Technical Specifications
| Mounting | Duct Fan |
|---|---|
| Voltage | 110V / 220V/400V |
| Blade Material | Aluminum Alloy |
| Electric Current Type | EC |
| Warranty | 1 Year |
| After-Sales Service Provided | Video Technical Support |
| Customized Support | OEM, ODM |
| Place Of Origin | Zhejiang, China |
| Brand Name | LONGWELL |
| Model Number | LWBE 450mm |
| Product Name | EC Fans for AHU |
| Diameter Of Impellers | 450mm diameter |
| Motor | BLEC motor |
| Frequency | 50 / 60 Hz |
| Speed Control | PWM / 0~10v signal |
| Material | Plastic + GF |
| Application | Server Cooling & Ventilation |
| Operating Temperature | -25℃~ +60℃ |
| OEM /ODM | Factory directly sale |
| Selling Units | Single item |
| Single Package Size | 7X6X6 cm |
| Single Gross Weight | 20.0 kg |
Product Details


Types : | R3G450mm EC Blower Backward Exhaust ventilation fan with Modbus RS485 FUNCTION for AHU,HVAC ,ventilation syste |
Voltage Ranges : | 400V |
Frequency : | 50/60 Hz |
Diamter : | 450mm ( impeller diameters ) |
Motor Types : | BLEC External Rotor Motor ( EC ) |
Speed Control : | 0-10V Signal / PWM / RS485(Optional) |
Max.ambient Temp: | -25℃~ +60℃ |
Certificating : | All necessary certifications suitable for USA & Europe , ETL,UL ,CE ,RoHS, ISO19001,ISO 14001,BSCI |
Protection Level: | IP44 ,IP54,IP55 |
Electronic Protection: | Current limiting protection ,Over-temperature protection,Over-current protection,Locked-rotor protection,Soft start |
Operating temperature:-25~60℃;Operating humidity:0 ~ 85 % RH Storing temperature:-25 ~ 70℃;Storing humidity:0 ~ 95 % RH Applicable altitude range:<1000m | |
Balancing | According to JB/T 9101-1999 requirements G6.3 |
Product Standards : | LVD EN60950-1 EMC EN61000-6-3,EN61000-4-2, EN61000-4-3 |
AUH/ AIR PURIFIER / Server Cooling & Ventilation / Grow Tent / Medical equipments/Ventilation SYSTEM/ Equipments Cooling / Refrigerator ,etc;ventilation fan cooling;ventilation exhaust fans |
















































Ordering and Pricing
- Minimum order quantity: 50 piece
- Volume pricing:
- 50+ piece: US $300 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this blower?
The standard minimum order quantity is 50 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Can the blower be supplied for my local voltage?
The standard configuration is 110V / 220V/400V. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Ningbo Longwell Electric Technology Co., Ltd., based in China. The company 8 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Ningbo Longwell Electric Technology Co., Ltd. range on HVACR Nexus.
See more in EC Inline Duct Fans on HVACR Nexus.























