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LEIPOLE 355FLW4A1 industrial backward centrifugal fan, aluminum impeller, IP44 protection, IEC Grade F insulation, high airflow industrial ventilation and HVAC unit

LEIPOLE 355FLW4A1 355x162mm Centrifugal Fan, 380V 3 Phase

Ø355x162mm heavy-duty 3-phase centrifugal fan with aluminum impeller, 380V AC power supply, 2580m³/h high airflow, IP44 protection, IEC Grade F insulation, automatic thermal protection for industrial HVAC and large enclosure ventilation.

  • Part number: 355FLW4A1
  • Order code: 2019.021
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Product Overview

LEIPOLE 355FLW4A1 is a heavy-duty high-airflow centrifugal fan from the 355FLW series. It is specially engineered for large-scale forced ventilation, intensive heat evacuation and stable airflow circulation for industrial HVAC systems, large power enclosures and heavy industrial equipment. Its robust structure delivers massive airflow output and stable operation under harsh industrial environmental conditions.

Core Product Features

  • Capacitor Start Induction Motor drive, with built-in automatic recovery thermal protection for motor overload safety
  • High-strength aluminum impeller, ensuring structural stability and long service life under high-speed operation
  • IP44 ingress protection rating, with wide adaptive temperature & humidity range: -40℃~+80℃, 0%~95% humidity
  • Compliant with IEC61858 Grade F insulation standard, with excellent withstand voltage performance
  • Qualified safety certification, supporting long-term unattended continuous heavy-duty industrial operation

Electrical & Operational Attributes

  • Rated power input: AC 380V, 50/60Hz, 3 phase
  • Input power: 158/215W, rated current: 0.44/0.43A
  • Rotational speed: 1400/1600 r/min, free-blowing airflow capacity: 43/49 m³/min (2580 m³/h)
  • Static pressure: 410/580Pa, operational noise level: 65/69dB
  • Unit net weight: 4750g
  • Overall dimension: Ø355x162mm

Applicable Industries

This heavy-duty centrifugal fan meets large-scale ventilation demands across extensive industrial scenarios:
  • Industrial HVAC system and workshop large-scale air circulation ventilation
  • Large power cabinet, inverter and high-voltage equipment intensive heat dissipation
  • Industrial oven, energy storage station and large mechanical equipment airflow cooling
  • Air purification and environmental ventilation system supporting units
  • Industrial ventilation system retrofitting and large airflow fan upgrading projects
Product Attribute Value
355FLW4A1 Parameters
Model 355FLW4A1
Order Code 2019.021
Dimensions (WxH) Ø355x162mm
Motor Capacitor Start Induction Motor
Impeller Aluminum
Rated Voltage (V) 380
Frequency (Hz) 50/60
Phase 3
Input Power (W) 158/215
Current (A) 0.44/0.43
Speed (r/min) 1400/1600
Air Flow (m³/min) 43/49
Static Pressure (Pa) 410/580
Noise (dB) 65/69
Weight (g) 4750
Capacitance –
Operation temp & humidity range -40℃~+80℃ (temperature) 0%~95% (humidity)
Protection Motor Internal with automatic recovery thermal protection
Withstand Voltage AC 1,800V, 1 min at 0.5mA, 50/60 Hz
Insulation Grade design according to IEC61858 Grade F
Certification CCC
IP rating IP44

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