LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 1478.1 m³/h Airflow, 927 Pa Static Pressure – LWFE3G250-072PS-04

Air Flow 1478.05 m³/h
Static Pressure 927 Pa
Inlet Ø 72 mm
Voltage 230 V

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

Specifications
Noise
71 dB(A)
Protection
IP55
Motor
EC
Speed
2570 RPM
Power Input
169 W
Impeller
PA6+GF
Frequency
50/60
Ambient Temp
-25℃~+60℃
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Description

Technical Description

Impeller Material PA6+GF
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 72mm
Nominal Voltage 230V
Frequency 50/60Hz
Current 1.27A
Power Input 169W
Speed 2570RPM
Static Pressure(Max) 927Pa
Air Flow(Max) 1478.05m³/h
Noise 71dB(A)
Min.ambient Temp -25℃
Max.ambient Temp 60℃

Curves

250-072PS-04 Backward Curved Centrifugal Fans Curve

Drawing

250-072PS-04 Backward Curved Centrifugal Fans drawing

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Additional information

Insulation Class

F

type

EC

speed

2570

Bearing

Maintenance-free ball bearings

frequency

50/60

current

1.27

sound power

169.0

noise

71

Min.ambient Temp Max.ambient Temp

-25℃~+60℃

sound pressure

927

airflow

1478.05

ac dc ec

EC

Impeller Material

PA6+GF

voltage

230

Protection Class

IP55

Mode of Operation

S1

dimensions

72

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

This model's estimated electrical input power is about 292 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.

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