LONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 24V PWM Control, Galvanized Steel, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems

$ 20

Get a Fast Quote from an Engineer Send your airflow, static pressure & voltage — we reply within one working day with a matching model.
✓ 1-day reply ✓ STEP / CAD on request ✓ Factory-direct

Your specifications go straight to a sales engineer — no spam, never shared.

Prefer a datasheet?
Download Product Catalog (PDF)
Need the exact model with a measured or digitised curve? This page describes the Backward Curved Centrifugal Fans range. The Fan Selector lists every LONGWELL backward-curved centrifugal fan model with airflow, static pressure, power, noise, drawing and datasheet.
Search backward-curved centrifugal fan models →
Have your duty point?

See every LONGWELL model whose P-Q curve covers it — margins, noise and power included. No login.

Library: Ø25–1,000 mm, single units up to about 52,000 m³/h — larger duties go straight to an engineer. Prefer to talk it through? Send your specs to an engineer

Description

Types :

250mm DC 24V 48V BLDC 0~10V PWM Plastic DC backward curved centrifugal ventilation fan blower
Voltage Ranges :

24v,48v
Frequency :

50/60 Hz
Diamter :

250mm ( impeller diameters )
Motor Types :

BLDC 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

Reviews

There are no reviews yet.

Be the first to review “LONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 24V PWM Control, Galvanized Steel, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems”

Your email address will not be published. Required fields are marked *

More in this series

LONGWELL 355mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 120V 0–10V/PWM Control, Aluminum Alloy, for AHU, Cold Storage, Air PurifiersLONGWELL 355mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 120V 0–10V/PWM Control, Aluminum Alloy, for AHU, Cold Storage, Air Purifiers120V/230V/400V4000rpmBLEC external rotor motorView & InquireLONGWELL 175mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, 85 W, Low Noise, for AHU, FFU, Data Center CoolingLONGWELL 175mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, 85 W, Low Noise, for AHU, FFU, Data Center Cooling4 in230 V4000 RPMView & InquireLONGWELL LWBE3G355-102PS-17 EC Backward-Curved Centrifugal Fan — Ø355 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G355-102PS-17 EC Backward-Curved Centrifugal Fan — Ø355 mm Impeller, 230 VAC, With bracket102 mm3142 m³/h230 VDatasheet, curve & drawing →LONGWELL 133mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 220V IP55 PWM Control, for FFU, Fan Coil Units, HVAC SystemsLONGWELL 133mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 220V IP55 PWM Control, for FFU, Fan Coil Units, HVAC Systems220VEC external rotor motorView & InquireLONGWELL LWBE3G133-072NS-08 EC Backward-Curved Centrifugal Fan — Ø133 mm Impeller, 230 VAC, Without housing / bracketLONGWELL LWBE3G133-072NS-08 EC Backward-Curved Centrifugal Fan — Ø133 mm Impeller, 230 VAC, Without housing / bracket72 mm432.6 m³/h230 VDatasheet, curve & drawing →LONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for AHU, FFU, Data Center CoolingLONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for AHU, FFU, Data Center Cooling250mm230 V3500rpmView & InquireLONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44 – LWBA2E220-092NS-08LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44 – LWBA2E220-092NS-0892 mm824/773/690 m³/h230 VDatasheet, curve & drawing →LONGWELL LWBE3G175-072NS-08 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, Without housing / bracketLONGWELL LWBE3G175-072NS-08 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, Without housing / bracket72 mm700.4 m³/h230 VDatasheet, curve & drawing →LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 1833 m³/h Airflow, 773 Pa Static Pressure – LWBA2D280-102NT-06LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 1833 m³/h Airflow, 773 Pa Static Pressure – LWBA2D280-102NT-06102 mm1833 m³/h380 VDatasheet, curve & drawing →LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 535.6 m³/h Airflow, 453.2 Pa Static Pressure – LWFE3G175-072PS-01LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 535.6 m³/h Airflow, 453.2 Pa Static Pressure – LWFE3G175-072PS-0172 mm535.6 m³/h230 VDatasheet, curve & drawing →

Related for the same application

LONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, PWM Control, for HVAC Systems, Cold Storage, Air Purifiers – LWDC-250MM-METALLONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, PWM Control, for HVAC Systems, Cold Storage, Air Purifiers – LWDC-250MM-METAL24VDC/ 48VDC4000rpmBLDC External Rotor motorView & InquireLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for FFU, Heat Pumps, Air PurifiersLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for FFU, Heat Pumps, Air Purifiers280mm230 V3500rpmView & InquireLONGWELL 40x10mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD4010MD-05LONGWELL 40x10mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD4010MD-0540x10|0.15 m³/h24 VDatasheet, curve & drawing →LONGWELL 80x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 48V – LWAD8025HH-11LONGWELL 80x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 48V – LWAD8025HH-1180x252.89 m³/h48 VDatasheet, curve & drawing →LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 494 m³/h Airflow, 371 Pa Static Pressure – LWBA2E180-092NS-02LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 494 m³/h Airflow, 371 Pa Static Pressure – LWBA2E180-092NS-0292 mm494 m³/h230 VDatasheet, curve & drawing →LONGWELL 355mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for AHU, FFU, Data Center CoolingLONGWELL 355mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for AHU, FFU, Data Center Cooling280mm230 V3500rpmView & InquireLONGWELL EC Double Inlet Forward Curved Centrifugal Fan, Double Inlet Blower Fan, 220V, Low Noise, for HVAC Systems, AHU, FFULONGWELL EC Double Inlet Forward Curved Centrifugal Fan, Double Inlet Blower Fan, 220V, Low Noise, for HVAC Systems, AHU, FFU4 in220 V4000 RPMView & InquireLONGWELL 50mm DC Cross Flow Fan, Tangential Blower Fan, 24V 0–10V/PWM Control, 198 m³/h Airflow – LWCD-50350MN-07LONGWELL 50mm DC Cross Flow Fan, Tangential Blower Fan, 24V 0–10V/PWM Control, 198 m³/h Airflow – LWCD-50350MN-0750 mm198 m³/h24 VDatasheet, curve & drawing →LONGWELL 70x20mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD7020MD-05LONGWELL 70x20mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD7020MD-0570x200.57 m³/h24 VDatasheet, curve & drawing →LONGWELL 80x38mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8038MM-10LONGWELL 80x38mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8038MM-1080x382.18 m³/h24 VDatasheet, curve & drawing →
Explore related
Free engineering calculators for this fan