LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 911.6 m³/h Airflow, 875.5 Pa Static Pressure – LWFE3G175-072PS-04

Air Flow 911.55 m³/h
Static Pressure 875.5 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
4760 RPM
Power Input
170 W
Impeller
PA6+GF
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

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

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 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 1.2A
Power Input 170W
Speed 4760RPM
Static Pressure(Max) 875.5Pa
Air Flow(Max) 911.55m³/h
Noise 71dB(A)
Min.ambient Temp -25℃
Max.ambient Temp 60℃

Curves

175-072PS-04 Backward Curved Centrifugal Fans Curve

Drawing

175-072PS-04 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

4760

Bearing

Maintenance-free ball bearings

frequency

50/60

current

1.2

sound power

170.0

noise

71

Min.ambient Temp Max.ambient Temp

-25℃~+60℃

sound pressure

875.5

airflow

911.55

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 276 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 LWBE3G225-092PS-12 EC Backward-Curved Centrifugal Fan — Ø225 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G225-092PS-12 EC Backward-Curved Centrifugal Fan — Ø225 mm Impeller, 230 VAC, With bracket92 mm1528 m³/h230 VDatasheet, curve & drawing →LONGWELL 560mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 400V, Low Noise, for Cold Storage, Air Purifiers, HVAC SystemsLONGWELL 560mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 400V, Low Noise, for Cold Storage, Air Purifiers, HVAC SystemsView & InquireLONGWELL 450mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V IP55, for AHU, HVAC Systems, Cold StorageLONGWELL 450mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V IP55, for AHU, HVAC Systems, Cold Storage4 in115 V4000 RPMView & InquireLONGWELL Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 110V IP68, for AHU, FFU, Fan Coil UnitsLONGWELL Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 110V IP68, for AHU, FFU, Fan Coil Units110v /220v 24VDC/ 48VDCAC external rotor motorView & InquireLONGWELL 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 560mm Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V, for AHU, HVAC Systems, Cold StorageLONGWELL 560mm Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V, for AHU, HVAC Systems, Cold Storage380V(as requiremnts)4000 RPMOtherView & InquireLONGWELL LWBE3G175-072PS-10 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, With bracketLONGWELL LWBE3G175-072PS-10 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, With bracket72 mm924 m³/h230 VDatasheet, curve & drawing →LONGWELL LWBE3G175-072NS-06 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, Without housing / bracketLONGWELL LWBE3G175-072NS-06 EC Backward-Curved Centrifugal Fan — Ø175 mm Impeller, 230 VAC, Without housing / bracket72 mm535.6 m³/h230 VDatasheet, curve & drawing →LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V IP44, 536 m³/h Airflow, 504 Pa Static Pressure – LWBA2E190-092NU-02LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 115V IP44, 536 m³/h Airflow, 504 Pa Static Pressure – LWBA2E190-092NU-0292 mm536 m³/h115 VDatasheet, curve & drawing →LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 1184.5 m³/h Airflow, 618 Pa Static Pressure – LWFE3G250-072PS-01LONGWELL 72mm EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP55, 1184.5 m³/h Airflow, 618 Pa Static Pressure – LWFE3G250-072PS-0172 mm1184.5 m³/h230 VView & Inquire

Related for the same application

LONGWELL 92mm AC Centrifugal Blower Fan, Industrial Centrifugal Fan, 230V – LWFA2E133-092DS-10LONGWELL 92mm AC Centrifugal Blower Fan, Industrial Centrifugal Fan, 230V – LWFA2E133-092DS-1092 mm773/618/474 m³/h230 VDatasheet, curve & drawing →LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 3245 m³/h Airflow, 515 Pa Static Pressure – LWBA4D355-102NT-10LONGWELL 102mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 380V IP54, 3245 m³/h Airflow, 515 Pa Static Pressure – LWBA4D355-102NT-10102 mm3245 m³/h380 VDatasheet, curve & drawing →LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 1499 m³/h Airflow, 773 Pa Static Pressure – LWBA2E250-092NS-14LONGWELL 92mm AC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 230V IP44, 1499 m³/h Airflow, 773 Pa Static Pressure – LWBA2E250-092NS-1492 mm1499 m³/h230 VDatasheet, curve & drawing →LONGWELL 92mm EC Forward Curved Centrifugal Blower, Forward Curved Blower Fan, 230V, 803 m³/h Airflow, 927 Pa Static Pressure – LWFE3G160-092NS-03LONGWELL 92mm EC Forward Curved Centrifugal Blower, Forward Curved Blower Fan, 230V, 803 m³/h Airflow, 927 Pa Static Pressure – LWFE3G160-092NS-0392 mm803 m³/h230 VDatasheet, curve & drawing →LONGWELL Industrial Fan, Industrial Ventilation Fan – LWHY-2LONGWELL Industrial Fan, Industrial Ventilation Fan – LWHY-24500-5400 m³/h380 V2120-1830 PaView & InquireLONGWELL 225mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems – LWDC-225MMLONGWELL 225mm DC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, PWM Control, PWM Control, for Cold Storage, Air Purifiers, HVAC Systems – LWDC-225MM24VDC/ 48VDC4000rpmBLDC External Rotor motorView & InquireLONGWELL AT 12-9R2 Belt-Driven Forward-Curved Centrifugal Blower — 800–10,500 m³/h, up to 1,250 PaLONGWELL AT 12-9R2 Belt-Driven Forward-Curved Centrifugal Blower — 800–10,500 m³/h, up to 1,250 Pa494×527 mm800–10Motor selected to duty — 220/380/415 V availableView & InquireLONGWELL 400mm EC Axial Fan, Industrial Axial Ventilation Fan, 220V IP54, 4944 m³/h Airflow – LWAE3G400SS-5MNW-01LONGWELL 400mm EC Axial Fan, Industrial Axial Ventilation Fan, 220V IP54, 4944 m³/h Airflow – LWAE3G400SS-5MNW-01400 mm4944 m³/h220 VDatasheet, curve & drawing →LONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 12V PWM Control, PWM Control – LWLONGWELL EC Backward Curved Centrifugal Fan, Industrial Centrifugal Blower, 12V PWM Control, PWM Control – LW12V/ 24VDC/ 48VDCexternal rotor motorView & InquireLONGWELL 80x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8025MH-16LONGWELL 80x25mm DC Axial Cooling Fan, Brushless DC Cooling Fan, 24V – LWAD8025MH-1680x251.9 m³/h24 VDatasheet, curve & drawing →
Explore related
Free engineering calculators for this fan