LONGWELL 102mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 5047 m³/h Airflow, 1009.4 Pa Static Pressure – LWFE3G355-102PS-03

Air Flow 5047 m³/h
Static Pressure 1009.4 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
2200 RPM
Power Input
700 W
Impeller
Aluminum Alloy
Frequency
50/60
Ambient Temp
-25℃~+60℃
Get a Fast Quote from an Engineer Send your airflow, static pressure & voltage — we reply within one working day with a matching model.
✓ 1-day reply ✓ STEP / CAD on request ✓ Factory-direct

Your specifications go straight to a sales engineer — no spam, never shared.

Prefer a datasheet?
Download Product Catalog (PDF)
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.
Search backward-curved centrifugal fan models →
Have your duty point?

See every LONGWELL model whose P-Q curve covers it — margins, noise and power included. No login.

Library: Ø25–1,000 mm, single units up to about 52,000 m³/h — larger duties go straight to an engineer. Prefer to talk it through? Send your specs to an engineer

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 2200RPM
Static Pressure(Max) 1009.4Pa
Air Flow(Max) 5047m³/h
Noise 85dB(A)
Min.ambient Temp -25℃
Max.ambient Temp 60℃

Curves

355-102PS-03 Backward Curved Centrifugal Fans Curve

Drawing

355-102PS-03 Backward Curved Centrifugal Fans drawing

Download

The Company Longwell Leading Fan and Motor Innovator Worldwide

As a leading supplier of ventilation and drive technology, LONGWELL is a highly respected engineering partner in many industries. With over than 20,000 different products, we provide the right solution for every need. And we have always worked according to the highest economic and ecological standards.

As part of the logical next step in the development of our high-efficiency BLEC MOTOR technology, we believe that industrial digitalization offers the best prospects for our customers in the future. LONGWELL already offers intelligently interconnected complete solutions that are second to none worldwide and ensure that our customers always remain that decisive step ahead.

LONGWELL Product Line

LONGWELL product line

LONGWELL Certificate

LONGWELL Certificate

Trusted by top Brands

LONGWELL Trusted by top Brands

Additional information

Insulation Class

F

type

EC

speed

2200

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

1009.4

airflow

5047

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.

More in this series

LONGWELL LWBE3G190-072PS-12 EC Backward-Curved Centrifugal Fan — Ø190 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G190-072PS-12 EC Backward-Curved Centrifugal Fan — Ø190 mm Impeller, 230 VAC, With bracket72 mm851 m³/h230 VDatasheet, curve & drawing →LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 945 m³/h Airflow, 515 Pa Static Pressure – LWBA2E220-092NS-02LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 945 m³/h Airflow, 515 Pa Static Pressure – LWBA2E220-092NS-0292 mm945 m³/h230 VDatasheet, curve & drawing →LONGWELL 92mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 24V 0–10V/PWM Control, 2266 m³/h Airflow, 391 Pa Static Pressure – LWBD3G310-092NM-01LONGWELL 92mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 24V 0–10V/PWM Control, 2266 m³/h Airflow, 391 Pa Static Pressure – LWBD3G310-092NM-0192 mm2266 m³/h24 VDatasheet, curve & drawing →LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 1236 m³/h Airflow, 515 Pa Static Pressure – LWFE3G250-072PS-02LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 1236 m³/h Airflow, 515 Pa Static Pressure – LWFE3G250-072PS-0272 mm1236 m³/h230 VView & InquireLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for FFU, Heat Pumps, Air PurifiersLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, Stainless Steel, for FFU, Heat Pumps, Air Purifiers280mm230 V3500rpmView & InquireLONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 1957 m³/h Airflow, 309 Pa Static Pressure – LWBA4E315-102NS-05LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 1957 m³/h Airflow, 309 Pa Static Pressure – LWBA4E315-102NS-05102 mm1957 m³/h230 VDatasheet, curve & drawing →LONGWELL 180mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, 66 W, Low Noise, for Cold Storage, Air Purifiers, HVAC SystemsLONGWELL 180mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V, 66 W, Low Noise, for Cold Storage, Air Purifiers, HVAC SystemsView & InquireLONGWELL 138mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 6077 m³/h Airflow, 618 Pa Static Pressure – LWBA4E450-138NS-02LONGWELL 138mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 6077 m³/h Airflow, 618 Pa Static Pressure – LWBA4E450-138NS-02138 mm6077 m³/h230 VDatasheet, curve & drawing →LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 1833 m³/h Airflow, 773 Pa Static Pressure – LWBA2E280-102NS-05LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP54, 1833 m³/h Airflow, 773 Pa Static Pressure – LWBA2E280-102NS-05102 mm1833 m³/h230 VDatasheet, curve & drawing →LONGWELL 175mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, for Cold Storage, Air Purifiers, HVAC SystemsLONGWELL 175mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, for Cold Storage, Air Purifiers, HVAC SystemsView & Inquire

Related for the same application

LONGWELL 92mm DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 48V, 556 m³/h Airflow, 649 Pa Static Pressure – LWFD3G160-092SH-02LONGWELL 92mm DC Centrifugal Blower Fan, Industrial Centrifugal Fan, 48V, 556 m³/h Airflow, 649 Pa Static Pressure – LWFD3G160-092SH-0292 mm556 m³/h48 VDatasheet, curve & drawing →LONGWELL 188mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 13125 m³/h Airflow, 798 Pa Static Pressure – LWBA4D560-188NT-05LONGWELL 188mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 13125 m³/h Airflow, 798 Pa Static Pressure – LWBA4D560-188NT-05188 mm13125 m³/h380 VDatasheet, curve & drawing →LONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V, for Cold Storage, HVAC Systems – LW-175MMLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V, for Cold Storage, HVAC Systems – LW-175MM115v /220v/24V/48Vexternal rotor motorView & InquireLONGWELL 125mm EC Axial Fan, Industrial Axial Ventilation Fan, 120V – LWDE-125LONGWELL 125mm EC Axial Fan, Industrial Axial Ventilation Fan, 120V – LWDE-125120V/60HZDuct FanView & InquireLONGWELL 225mm EC Plug Fan, EC Centrifugal Blower Fan, 230V IP55, 170 W, for AHU, FFU, Data Center CoolingLONGWELL 225mm EC Plug Fan, EC Centrifugal Blower Fan, 230V IP55, 170 W, for AHU, FFU, Data Center Cooling4 in230 V4000 RPMView & InquireLONGWELL 185mm AC Axial Fan, Industrial Axial Ventilation Fan, 380/400V IP44, 742 m³/h Airflow – LWAA2D185S-7MNW-04LONGWELL 185mm AC Axial Fan, Industrial Axial Ventilation Fan, 380/400V IP44, 742 m³/h Airflow – LWAA2D185S-7MNW-04185 mm742 m³/h380/400 VDatasheet, curve & drawing →LONGWELL Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, for AHU, FFU, Fan Coil Units – LWLONGWELL Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, for AHU, FFU, Fan Coil Units – LW24VDC/ 48VDC(as requiremnts)4000rpmOtherView & InquireLONGWELL EC Inline Duct Fan, Exhaust Ventilation Fan, 110V, for Control Cabinet Cooling, Duct Ventilation, HVAC SystemsLONGWELL EC Inline Duct Fan, Exhaust Ventilation Fan, 110V, for Control Cabinet Cooling, Duct Ventilation, HVAC Systems110v-240v4000rpmEC/AC external rotor motorView & InquireLONGWELL LWBE3G310-138PT-10 EC Backward-Curved Centrifugal Fan — Ø310 mm Impeller, 380 VAC, With bracketLONGWELL LWBE3G310-138PT-10 EC Backward-Curved Centrifugal Fan — Ø310 mm Impeller, 380 VAC, With bracket138 mm5593 m³/h400 VDatasheet, curve & drawing →LONGWELL 138mm EC Centrifugal Blower Fan, Industrial Centrifugal Fan, 380V, 4223 m³/h Airflow, 917 Pa Static Pressure – LWFE3G280-138DS-01LONGWELL 138mm EC Centrifugal Blower Fan, Industrial Centrifugal Fan, 380V, 4223 m³/h Airflow, 917 Pa Static Pressure – LWFE3G280-138DS-01138 mm4223 m³/h380 VDatasheet, curve & drawing →
Explore related
Free engineering calculators for this fan