LONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems – LWDC-250MM

Voltage 24VDC/ 48VDC
ISO / CE / UL / ETL Factory & Test Lab OEM / ODM ebm-papst alternative

$ 20

Specifications
Speed
4000rpm, 500RPM, 800RPM, 1500RPM, 600RPM, 900rpm, 2000RPM
Impeller
Propylene with glass fiber reinforced
Category: Tags: , ,
CategoryBackward Curved Centrifugal Fans
TagsBackward Curved Centrifugal FanDC FanDuct Ventilation
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

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

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

Additional information

Voltage

24VDC/ 48VDC
speed

4000rpm, 500RPM, 800RPM, 1500RPM, 600RPM, 900rpm, 2000RPM
Blade Material

ABS+ GF
customized support

OEM, ODM, OBM
mounting

Wall Fan
place of origin

Zhejiang, China
brand name

LONGWELL
model number

LWDC-250mm
warranty

1 Year
After-sales Service Provided

Video technical support
Material

Stainless Steel, Plastic, aluminum alloy, Steel
Power input

DC24/48 ; 50/60 Hz
Impeller material

Propylene with glass fiber reinforced
Direction

Clockwise seen from Rotor
Bearing Type

Ball Bearing
Amb,Temp

-25 to +60℃
Insulation

B/F
Protection Classs

IP 44
Technical Feature

Tech out put /Over voltage protection /Over loading protection
Speed control

0~10V/ PWM
Type

Centrifugal Fan
Selling units

Single item
Single package size

40X40X40 cm
Single gross weight

5.000 kg

Reviews

There are no reviews yet.

Be the first to review “LONGWELL 250mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems – LWDC-250MM”

Your email address will not be published.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

More in this series

LONGWELL DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 220V, Stainless Steel, for Cold Storage, Air Purifiers, HVAC SystemsLONGWELL DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 220V, Stainless Steel, for Cold Storage, Air Purifiers, HVAC Systems4 in220 V4000 RPMView & InquireLONGWELL LWBE3G250-072NS-08 EC Backward-Curved Centrifugal Fan — Ø250 mm Impeller, 230 VAC, Without housing / bracketLONGWELL LWBE3G250-072NS-08 EC Backward-Curved Centrifugal Fan — Ø250 mm Impeller, 230 VAC, Without housing / bracket72 mm1184.5 m³/h230 VDatasheet, curve & drawing →LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 741.6 m³/h Airflow, 535.6 Pa Static Pressure – LWFE3G175-072PS-02LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 741.6 m³/h Airflow, 535.6 Pa Static Pressure – LWFE3G175-072PS-0272 mm741.6 m³/h230 VView & InquireLONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115/230V IP55, 800 W, for AHU, Cold Storage, Air PurifiersLONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115/230V IP55, 800 W, for AHU, Cold Storage, Air Purifiers115/230V4000 RPMOtherView & InquireLONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115/230V 0–10V/PWM Control, for AHU, Cold Storage, Air PurifiersLONGWELL 250mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115/230V 0–10V/PWM Control, for AHU, Cold Storage, Air Purifiers115/230V4000rpmBLEC external rotor motorView & InquireLONGWELL LWBE3G250-072NU-32 EC Backward-Curved Centrifugal Fan — Ø250 mm Impeller, 115 V, Without housing / bracketLONGWELL LWBE3G250-072NU-32 EC Backward-Curved Centrifugal Fan — Ø250 mm Impeller, 115 V, Without housing / bracket72 mm1184.5 m³/h115 VDatasheet, curve & drawing →LONGWELL 188mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 13125 m³/h Airflow, 798 Pa Static Pressure – LWBA4D560-188NT-05LONGWELL 188mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 13125 m³/h Airflow, 798 Pa Static Pressure – LWBA4D560-188NT-05188 mm13125 m³/h380 VDatasheet, curve & drawing →LONGWELL LWBE3G500-188PT-02 EC Backward-Curved Centrifugal Fan — Ø500 mm Impeller, 380 VAC, With bracketLONGWELL LWBE3G500-188PT-02 EC Backward-Curved Centrifugal Fan — Ø500 mm Impeller, 380 VAC, With bracket188 mm12243 m³/h400 VDatasheet, curve & drawing →LONGWELL LWBE3G310-092NU-29 EC Backward-Curved Centrifugal Fan — Ø310 mm Impeller, 115 V, Without housing / bracketLONGWELL LWBE3G310-092NU-29 EC Backward-Curved Centrifugal Fan — Ø310 mm Impeller, 115 V, Without housing / bracket92 mm2523.5 m³/h115 VDatasheet, curve & drawing →LONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V, for Cold Storage, HVAC Systems – LW-175MMLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V, for Cold Storage, HVAC Systems – LW-175MM115v /220v/24V/48Vexternal rotor motorView & Inquire

Related for the same application

LONGWELL 110mm DC Cross Flow Fan, Tangential Blower Fan, 24V PWM Control, Aluminum Alloy, for Air Curtains, Ovens, Floor HeatingLONGWELL 110mm DC Cross Flow Fan, Tangential Blower Fan, 24V PWM Control, Aluminum Alloy, for Air Curtains, Ovens, Floor HeatingDC 24V4000rpmDC brushless external MotorView & InquireLONGWELL DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 230V, for Control Cabinet Cooling, AHU, FFU – LWFA-140LONGWELL DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 230V, for Control Cabinet Cooling, AHU, FFU – LWFA-1404in230V4000rpmView & InquireLONGWELL 400mm Centrifugal Blower Fan, Industrial Centrifugal Fan, 110V, for HVAC SystemsLONGWELL 400mm Centrifugal Blower Fan, Industrial Centrifugal Fan, 110V, for HVAC Systems110v /220v 24VDC/ 48VDCDC external rotor motorView & InquireLONGWELL LWBE3G280-102PS-16 EC Backward-Curved Centrifugal Fan — Ø280 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G280-102PS-16 EC Backward-Curved Centrifugal Fan — Ø280 mm Impeller, 230 VAC, With bracket102 mm2318 m³/h230 VDatasheet, curve & drawing →LONGWELL 92x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD9225MX-03LONGWELL 92x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD9225MX-0392x252.84 m³/h24 VDatasheet, curve & drawing →LONGWELL 198mm EC Industrial Fan, Industrial Ventilation Fan, 110/240V, 1453 m³/h Airflow – LWDE3G200-IS-01LONGWELL 198mm EC Industrial Fan, Industrial Ventilation Fan, 110/240V, 1453 m³/h Airflow – LWDE3G200-IS-01198 mm1453 m³/h110-240 VDatasheet, curve & drawing →LONGWELL DC Industrial Fan, Industrial Ventilation Fan, 12V – LWCC-DC245LONGWELL DC Industrial Fan, Industrial Ventilation Fan, 12V – LWCC-DC24512V2500rpmBall BearingView & InquireLONGWELL LWBE3G175-072PS-03 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G175-072PS-03 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, With bracket72 mm700.4 m³/h230 VView & InquireLONGWELL 92x38mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 48V – LWAD9238HD-05LONGWELL 92x38mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 48V – LWAD9238HD-0592x382.41 m³/h48 VDatasheet, curve & drawing →LONGWELL 80x10mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8010ML-04LONGWELL 80x10mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8010ML-0480x100.83 m³/h24 VDatasheet, curve & drawing →
Explore related
Free engineering calculators for this fan
🧭 Duct Size & Static Pressure Calculator🎯 Fan Specific Speed & Type Selector⚡ Fan Motor Amps & Power Calculator (kW, HP, FLA)📊 Fan Efficiency Calculator (Static, Total & Wire-to-Air)🧱 Fan Wall & N+1 Redundancy CalculatorAll tools →