280-102PS-07 Backward Curved Centrifugal Fans

LONGWELL 102mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 3193 m³/h Airflow, 1442 Pa Static Pressure – LWFE3G280-102PS-07

Air Flow 3193 m³/h

Static Pressure 1442 Pa

Inlet Ø 102 mm

Voltage 230 V

ISO / CE / UL / ETL Factory & Test Lab OEM / ODM ebm-papst alternative

Control input 0-10VDC/PWM,Tach output,Locked-Rotor protection,Reverse Polarity Over-voltage protection,Soft Start Protection.

Specifications

Noise: 75 dB(A)
Protection: IP55
Motor: EC
Speed: 3000 RPM
Power Input: 500 W
Impeller: Aluminum Alloy
Frequency: 50/60
Ambient Temp: -25℃～+60℃

Category: Backward Curved Centrifugal Fans Tags: Backward Curved Centrifugal Fan, EC Motor, Industrial Ventilation

CategoryBackward Curved Centrifugal Fans

TagsBackward Curved Centrifugal Fan EC Motor Industrial Ventilation

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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.

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Description
Additional information

Description

Technical Description

Impeller Material	Aluminum Alloy
Mode of Operation	S1
Protection Class	IP55
Insulation Class	F
Bearing	Maintenance-free ball bearings
Technical Feature	Control input 0-10VDC/PWM,Tach output,Locked-Rotor protection,Reverse Polarity Over-voltage protection,Soft Start Protection.

Nominal data

Type of Voltage	EC
Diameter of Rotor	102mm
Nominal Voltage	230V
Frequency	50/60Hz
Current	2.3A
Power Input	500W
Speed	3000RPM
Static Pressure(Max)	1442Pa
Air Flow(Max)	3193m³/h
Noise	75dB(A)
Min.ambient Temp	-25℃
Max.ambient Temp	60℃

Curves

280-102PS-07 Backward Curved Centrifugal Fans Curve

Drawing

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Additional information

Insulation Class	F
type	EC
speed	3000
Bearing	Maintenance-free ball bearings
frequency	50/60
current	2.3
sound power	500.0
noise	75
Min.ambient Temp Max.ambient Temp	-25℃～+60℃
sound pressure	1442
airflow	3193
ac dc ec	EC
Impeller Material	Aluminum Alloy
voltage	230
Protection Class	IP55
Mode of Operation	S1
dimensions	102

ErP 2026 scope check — Regulation (EU) 2024/1834

This model's estimated electrical input power is about 529 W, which falls inside the 125 W – 500 kW band covered by Regulation (EU) 2024/1834, applicable to fans first placed on the EU market from 24 July 2026.

Compliance is determined at your duty point, not by the model alone. The same fan can meet the requirement in one project and miss it in another, because the regulation evaluates efficiency across the real operating range rather than at the best efficiency point only.

Check this model at your duty point → Request test data & documentation →

Input power is estimated from rated voltage and current for scope indication only. Final selection must be confirmed against the duty point (airflow / static pressure / voltage / control method) and project verification. See the ErP 2026 requirements guide.