LONGWELL 102mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 4120 m³/h Airflow, 1081.5 Pa Static Pressure – LWFE3G310-102PS-03

Air Flow 4120 m³/h
Static Pressure 1081.5 Pa
Inlet Ø 102 mm
Voltage 230 V

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

Specifications
Noise
85 dB(A)
Protection
IP55
Motor
EC
Speed
2960 RPM
Power Input
700 W
Impeller
Aluminum Alloy
Frequency
50/60
Ambient Temp
-25℃~+60℃
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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 3.1A
Power Input 700W
Speed 2960RPM
Static Pressure(Max) 1081.5Pa
Air Flow(Max) 4120m³/h
Noise 85dB(A)
Min.ambient Temp -25℃
Max.ambient Temp 60℃

Curves

310-102PS-03 Backward Curved Centrifugal Fans Curve

Drawing

310-102PS-03 Backward Curved Centrifugal Fans drawing

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Additional information

Insulation Class

F

type

EC

speed

2960

Bearing

Maintenance-free ball bearings

frequency

50/60

current

3.1

sound power

700.0

noise

85

Min.ambient Temp Max.ambient Temp

-25℃~+60℃

sound pressure

1081.5

airflow

4120

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 713 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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