Centrifugal fan — 380V(as requiremnts), blade material Iron. The complete factory specification follows. Made by Ningbo Longwell Electric Technology Co., Ltd. (9 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Centrifugal Fan
- Model Number: RLM 450MM
- Power Input: 380V(as requiremnts)
- Voltage: 380V(as requiremnts)
- Blade Material: Iron
- Impeller Material: Iron
- Speed: 4000 RPM, 500 RPM, 800 RPM, 1500 RPM, 600 RPM, 900rpm, 2000 RPM
Technical Specifications
| Mounting | Other |
|---|---|
| Voltage | 380V(as requiremnts) |
| Speed | 4000 RPM, 500 RPM, 800 RPM, 1500 RPM, 600 RPM, 900rpm, 2000 RPM |
| Blade Material | Iron |
| Warranty | 1 Year |
| After-Sales Service Provided | Video Technical Support |
| Customized Support | OEM, ODM, OBM |
| Place Of Origin | Zhejiang, China |
| Brand Name | Plug Fan |
| Model Number | RLM 450MM |
| Type | centrifugal fan |
| Power Input | 380V(as requiremnts) |
| Impeller Material | Iron |
| Direction | Clockwise |
| Bearing | Ball Bearing |
| Motor Type | Internal rotor motor |
| Insulation | B/F |
| Application | AHU,HVAC |
| Diameter Of Impeller | 450MM |
| Selling Units | Single item |
| Single Package Size | 70X70X40 cm |
| Single Gross Weight | 20.0 kg |
Product Details


Types : | RLM450 Central Air conditioning system 380V 400V backward curved impeller plenum centrifugal fan |
Frequency : | 50/60 Hz |
Diamter : | 450mm ( impeller diameters ) |
Motor Types : | BLEC External Rotor Motor |
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 |
Working & Storage | 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 |
Mainly Applications | AUH/ AIR PURIFIER / Server Cooling & Ventilation / Grow Tent /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 $120 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this centrifugal fan?
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 centrifugal fan be supplied for my local voltage?
The standard configuration is 380V(as requiremnts). 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 9 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Ningbo Longwell Electric Technology Co., Ltd. range on HVACR Nexus.
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