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LWFA4D280-188NT-01 product photo
LWFA6E280-138NS-04 product photo
LWFA6E280-138NS-04 product photo
  • ImpellerØ280 mm
  • Max airflow3,502 m³/h
  • Max static pressure463.5 Pa
  • Voltage380 V
  • Speed1,360 rpm
  • Input power1,700 W
  • Noise77 dB(A)

LWFA4D280-188NT-01 AC Forward Curved Centrifugal Fan Ø280 mm

Ø280 mm | AC | Max airflow 3,502 m³/h | Max static pressure 463.5 Pa | 77 dB(A)

SKU: LWFA4D280-188NT-01 Categories: , ,
  • Factory direct
  • OEM / ODM
  • Samples in 1–3 days
  • Production 15–30 days
  • 18-month warranty
  • CE · ETL · RoHS
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Dimensional drawingDimensions in mm. Confirm against the final approval drawing before machining cut-outs.
LWFA4D280-188NT-01 Dimensional drawing
Performance curve (P-Q)Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.
LWFA4D280-188NT-01 Performance curve (P-Q)

Series catalogue

PDFLWFA LWFA Series Direct Driven centrifugal blower · 1.4 MB

Covers the whole series, not only this model.

Need a non-standard size or another format? Ask an engineer or search the download center.

LWFA4D280-188NT-01 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø280 mm, rated 380 V AC, maximum airflow 3,502 m³/h, maximum static pressure 463.5 Pa, noise 77 dB(A), input power 1,700 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model LWFA4D280-188NT-01
Series LWFA4D280
Motor type AC
Phase 3-phase
Rated voltage 380 V
Frequency 50 Hz
Current 3.2 A
Input power 1,700 W
Speed 1,360 rpm
Max. airflow 3,502 m³/h
Max. static pressure 463.5 Pa
Noise 77 dB(A)
Ambient temperature -30 ~ 60 °C
Impeller diameter Ø280 mm
Rotor diameter 188
Insulation class F
Bearing Maintenance-free ball bearings
Duty S1

Typical applications

  • Air handling units (AHU) and rooftop units (RTU)
  • Data-center CRAH / CRAC units and fan walls
  • Dust extraction and process ventilation
  • Fan filter units and air purifiers

Series LWFA4D280: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.

Alternatives with the same impeller (Ø280 mm · AC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

ModelMax airflowMax static pressureSpeedPowerNoiseVoltage
LWFA4D280-188NT-01 this model 3,502 m³/h463.5 Pa 1,360 rpm1,700 W77 dB(A)380 V
LWBA4E280-092NS-04 1,442 m³/h288 Pa 1,500 rpm100 W66 dB(A)230 V View
LWEA280S(T)M-155E 1,605 m³/h60 Pa 1,450 rpm180 W—220 V View
LWBA2D280-102NT-06 1,833 m³/h773 Pa 2,650 rpm250 W80 dB(A)380 V View
LWBA2E280-102NS-05 1,833 m³/h773 Pa 2,650 rpm250 W80 dB(A)230 V View
LWFA-E-280-02 2,100 m³/h220 Pa ——64 dB(A)— View
LWBA2D280-102NT-08 2,163 m³/h773 Pa 2,700 rpm330 W80 dB(A)380 V View
LWBA2E280-102NS-07 2,163 m³/h773 Pa 2,700 rpm330 W80 dB(A)230 V View
LWFA4E280-188NS-02 2,284 m³/h391.4 Pa 1,360 rpm1,600 W77 dB(A)220 V View
LWFA6E280-138NS-04 2,318 m³/h247.2 Pa 900 rpm450 W65 dB(A)220 V View
LWFA6D280-138NT-03 2,318 m³/h247.2 Pa 900 rpm450 W65 dB(A)380 V View
LWFA-E-280-01 2,600 m³/h490 Pa ——69 dB(A)— View
LWBA2D280-138NT-09 2,678 m³/h917 Pa 2,750 rpm500 W78 dB(A)380 V View
LWBA2D280-138NT-10 2,833 m³/h927 Pa 2,900 rpm680 W80 dB(A)380 V View
LWEA280S(T)M-156E 3,202 m³/h232 Pa 2,900 rpm250 W—220 V View

Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.

Related products

Other models in the LWFA4D280 seriesSame impeller, different speed grade or wiring

LWFA4D280-188ST-01 product photoLWFA4D280-188ST-01Ø280 mm · 3,811 m³/h · 463.5 Pa · ACsame series

Adjacent sizesOne size up when airflow is short, one size down when it is too much

LWBE3G270-092NU-01 product photoLWBE3G270-092NU-01Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent sizeLWBE3G270-092NS-02 product photoLWBE3G270-092NS-02Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent sizeLWFA6E300-138DS-01 product photoLWFA6E300-138DS-01Ø300 mm · 1,596 m³/h · 368 Pa · ACadjacent sizeLWBE3G310-072NS-21 product photoLWBE3G310-072NS-21Ø310 mm · 2,266 m³/h · 618 Pa · ECadjacent sizeLWBE3G310-092NS-22 product photoLWBE3G310-092NS-22Ø310 mm · 2,678 m³/h · 607.7 Pa · ECadjacent sizeLWBE3G310-092NU-28 product photoLWBE3G310-092NU-28Ø310 mm · 2,678 m³/h · 607.7 Pa · ECadjacent size

Alternatives at a similar dutySimilar airflow, different construction or motor platform

LWAA2E300S-5MBW-08 product photoLWAA2E300S-5MBW-08Ø300 mm · 3,502 m³/h · ACsimilar dutyLWAA6D450S-5MEB-08 product photoLWAA6D450S-5MEB-08Ø450 mm · 3,502 m³/h · ACsimilar dutyLWAA2E300S-5MEW-08 product photoLWAA2E300S-5MEW-08Ø300 mm · 3,502 m³/h · ACsimilar dutyLWFE3G225-138DS-03 product photoLWFE3G225-138DS-03Ø225 mm · 3,502 m³/h · 371 Pa · ECsimilar dutyLWDE-400 (16")S-MWN-04 product photoLWDE-300 (12")S-MWN-04Ø300 mm · 3,500 m³/h · ECsimilar dutyLWDE-300 (12")S-MWN-02 product photoLWDE-300 (12")S-MWN-02Ø300 mm · 3,500 m³/h · ECsimilar duty

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