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.
- ImpellerØ355 mm14.0 in
- Max airflow2,421 m³/h1,425 CFM
- Max static pressure499 Pa2.00 in. wg
- Voltage48 V
- Speed1,600 rpm
- Input power205 W
- Noise75 dB(A)
LWBD3G355-102NH-04 DC Backward Curved Centrifugal Fan Ø355 mm
Ø355 mm | DC | Max airflow 2,421 m³/h | Max static pressure 499 Pa | 75 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Downloads for LWBD3G355-102NH-04
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBD3G355-102NH-04 is a LONGWELL DC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø355 mm, rated 48 V DC, maximum airflow 2,421 m³/h, maximum static pressure 499 Pa, noise 75 dB(A), input power 205 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWBD3G355-102NH-04 |
|---|---|
| Series | LWBD3G355 |
| Motor type | DC |
| Rated voltage | 48 V |
| Current | 4.3 A |
| Input power | 205 W |
| Speed | 1,600 rpm |
| Max. airflow | 2,421 m³/h |
| Max. airflow (CFM) | 1,410 CFM |
| Max. static pressure | 499 Pa |
| Noise | 75 dB(A) |
| Ambient temperature | -15 ~ 60 °C |
| Storage temperature | -15 ~ 60℃ |
| Humidity | 5 ~ 90 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø355 mm |
| Rotor diameter | 102 |
| Impeller material | ( Impeller ) |
| Protection class | IP44 |
| Insulation class | F |
| Bearing | Maintenance-free deep groove ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 20,000(h)min, At 25 °Croom, humidity 15%~65%RH |
| Rotation | Clockwise,seen on rotor |
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 LWBD3G355: 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.
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Adjacent sizesOne size up when airflow is short, one size down when it is too much
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