ImpellerØ155 mm6.1 in
Max airflow433 m³/h254 CFM
Max static pressure371 Pa1.49 in. wg
Voltage230 V
Speed3,570 rpm
Input power40 W
Noise63 dB(A)

LWBE3G155-072PS-01 EC Plug Fan Ø155 mm

Ø155 mm | EC | Max airflow 433 m³/h | Max static pressure 371 Pa | 63 dB(A)

SKU: LWBE3G155-072PS-01 Categories: Centrifugal Fans, Impeller Ø133–225 mm, Plug Fans (RLM Plenum Fans)

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18-month warranty
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Required airflow Required static pressure

Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.

LWBE3G155-072PS-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBE3G155-072PS-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBE3G155-072PS-01 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBE3G155-072PS-01

DOCXDatasheet · 472 KB PDFDatasheet · 654 KB

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LWBE3G155-072PS-01 is a LONGWELL EC Plug Fan from the Plug Fans (RLM Plenum Fans) range, impeller Ø155 mm, rated 230 V EC, maximum airflow 433 m³/h, maximum static pressure 371 Pa, noise 63 dB(A), input power 40 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.

Technical data

Model	LWBE3G155-072PS-01
Series	LWBE3G155
Motor type	EC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	0.3 A
Input power	40 W
Speed	3,570 rpm
Max. airflow	433 m³/h
Max. airflow (CFM)	254 CFM
Max. static pressure	371 Pa
Noise	63 dB(A)
Ambient temperature	-25 ~ 60 °C
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø155 mm
Rotor diameter	72
Impeller material	PA6+GF ( Impeller )
Protection class	IP44
Insulation class	B
Bearing	Maintenance-free deep groove ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
Service life	40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH
Speed control	Control input 0~10VDC / PWM
Control signal	Control signal VSP voltage range1±0.1VDC~9.5±0.2VDC(During normal operation, when the VSP voltage is below 1.0±0.1VDC, the motor switches from operating mode to standby mode)
PWM input	PWM signal: frequency 1K–10KHz, amplitude 10–12V,duty cycle 30%–70% .
Speed feedback	Tach output: 1 Pulse/R; FG internal open circuit output, external pull-up resistor 10KΩ, pull-up voltage +10V
Auxiliary output	Output 10VDC, Max Current 10 mA
Protection functions	Over-temperature protection, Over-current protection, Locked-rotor protection’
Soft start	Delay time <20 seconds to full speed

Typical applications

Air handling units (AHU) and rooftop units (RTU)
Data-center CRAH / CRAC units and fan walls
Dust extraction and process ventilation
Fan filter units and air purifiers

Series LWBE3G155: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.