ImpellerØ190 mm7.5 in
Max airflow505 m³/h297 CFM
Max static pressure412 Pa1.65 in. wg
Voltage48 V
Speed3,300 rpm
Input power85 W
Noise73 dB(A)

LWBD3G190-092NH-07 DC Backward Curved Centrifugal Fan Ø190 mm

Ø190 mm | DC | Max airflow 505 m³/h | Max static pressure 412 Pa | 73 dB(A)

SKU: LWBD3G190-092NH-07 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø133–225 mm

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18-month warranty
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Required airflow Required static pressure

Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.

LWBD3G190-092NH-07 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBD3G190-092NH-07 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Downloads for LWBD3G190-092NH-07

PDFDatasheet · 1.8 MB

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

LWBD3G190-092NH-07 is a LONGWELL DC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø190 mm, rated 48 V DC, maximum airflow 505 m³/h, maximum static pressure 412 Pa, noise 73 dB(A), input power 85 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWBD3G190-092NH-07
Series	LWBD3G190
Motor type	DC
Rated voltage	48 V
Current	1.8 A
Input power	85 W
Speed	3,300 rpm
Max. airflow	505 m³/h
Max. static pressure	412 Pa
Noise	73 dB(A)
Ambient temperature	-25 ~ 60 °C
Impeller diameter	Ø190 mm
Rotor diameter	92
Impeller material	Plastic PA66+25%GF
Protection class	IP42
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
Rotation	Clockwise,seen on rotor

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 LWBD3G190: 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 (Ø190 mm · DC)

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

Model	Max airflow	Max static pressure	Speed	Power	Noise	Voltage
LWBD3G190-092NH-07 this model	505 m³/h	412 Pa	3,300 rpm	85 W	73 dB(A)	48 V
LWBD3G190-092NM-06	505 m³/h	412 Pa	3,300 rpm	85 W	73 dB(A)	24 V	View
LWBD3G190-072NH-05	731 m³/h	453 Pa	3,100 rpm	75 W	70 dB(A)	48 V	View
LWBD3G190-072NM-04	731 m³/h	453 Pa	3,100 rpm	75 W	70 dB(A)	24 V	View