Product Description
LD Factory Customization EC3G120 Φ120 EC Centrifugal Fan，The core positioning is a compact centrifugal fan with medium-low pressure, high airflow, ultra-low noise, and energy-saving inverter technology, primarily targeting commercial HVAC, fresh air purification, precision equipment, and medical cleanroom applications that have extremely high requirements for noise and energy efficiency.
I. Electrical and Performance Parameters
Rated voltage: 110V;
Frequency: 50/60 Hz;
Input current: 0.90 A (±10%);
Input power: 60.00 W (±10%);
Speed: 2200 rpm (±10%);
Airflow: 240 m³/h (±10%);
Static pressure: 290 Pa;
Noise level: 62 dBA;
Operating temperature: -25 ~ +60 ℃ ；
Speed control method: 0-10V DC / PWM speed control, with speed signal output;
Protection functions: stall protection, current limiting protection, soft start;
Protection level: IP44;
Insulation class: F class;
Bearing type: Ball bearing;
Impeller material: galvanized steel plate;
Rotation direction: viewed from the lead wire, it is counterclockwise;
II. Mechanical Dimensions Parameters (Unit: mm)
1. Axial length (total length direction)
Total length of the fan body: 99.0
Installation flange section length: 26.0
Shell / Outlet section length: 73.0
Effective length of the air outlet section: 62.0
Effective inner length of the air outlet section: 61.0
Distance from the outlet end to the flange face: 6.0
Terminal group spacing: 8.5
Distance from the outermost end of the terminal to the flange face: 45.0
2. Radial diameter
Maximum outer diameter of the fan: Ø120.0
Outer diameter of the volute outlet: Ø96.0
Shell outlet inner diameter: Ø72.0
Motor / Flange Section Outer Diameter: Ø115.0
Motor / Flange Section Inner Hole 1: Ø93.0
Motor / Flange Section Inner Hole 2: Ø80.0
3. Installation Flange Dimensions
Flange mounting hole distribution circle diameter: Ø105.0
Flange Positioning / Inner Ring Diameter: Ø58.0
Installation screw specifications: 4-M4, depth 6mm (4 M4 screw holes, hole depth 6mm)
III. Core Application Areas (Precise Matching, Low Noise + Forward Tilt + EC Characteristics)
1. Fresh Air Purification and Residential/Commercial HVAC (Most Popular)
Full Heat Exchanger, Fresh Air Handling Unit (HRV/ERV)
Household / Commercial Wall-Mounted / Cabinet-Type Fresh Air Ventilators, Air Purifiers
Fan coil unit, indoor air conditioner, ducted air supply, air curtain
Advantages: Low noise (≤35–45dB (A)), variable frequency speed control, high efficiency and energy saving
2. Precision Electronics and Industrial Control
Cabinet Air Conditioners, Inverters, UPS, Energy Storage Cabinets, Charging Station Cooling
Server chassis, communication base stations, testing equipment cooling
Advantages: Compact external rotor structure, IP54/55 protection, long lifespan
3. Healthcare and Clean Environments
Medical ventilators, anesthesia machines, clean workstations, biological safety cabinets
Laboratory Ventilation, Pharmaceutical / Food Workshop Purification and Air Supply
Advantages: Brushless and oil-free, clean airflow, low vibration, controllable speed
4. Dehumidification / Cooling / Cold Chain Equipment
Industrial Dehumidifiers, Constant Temperature and Humidity Machines, Commercial Freezers, Cold Chain Units
Heat pumps, drying equipment, heat recovery units
Advantages: Wide temperature range (-25~60) ℃ ), stable in wide voltage and high humidity environments
5. Rail Transit and Onboard Equipment
High-speed rail / subway air conditioning units, onboard control cabinet cooling
New Energy Vehicle Battery Thermal Management, Bus Air Conditioningh Air Purification and Residential/Commercial HVAC (Most Popular)
Full Heat Exchanger, Fresh Air Handling Unit (HRV/ERV)
Household / Commercial Wall-Mounted / Cabinet-Type Fresh Air Ventilators, Air Purifiers
Fan coil unit, indoor air conditioner, ducted air supply, air curtain
Advantages: Low noise (≤35–45dB (A)), variable frequency speed control, high efficiency and energy saving
2. Precision Electronics and Industrial Control
Cabinet Air Conditioners, Inverters, UPS, Energy Storage Cabinets, Charging Station Cooling
Server chassis, communication base stations, testing equipment cooling
Advantages: Compact external rotor structure, IP54/55 protection, long lifespan
3. Healthcare and Clean Environments
Medical ventilators, anesthesia machines, clean workstations, biological safety cabinets
Laboratory Ventilation, Pharmaceutical / Food Workshop Purification and Air Supply
Advantages: Brushless and oil-free, clean airflow, low vibration, controllable speed
4. Dehumidification / Cooling / Cold Chain Equipment
Industrial Dehumidifiers, Constant Temperature and Humidity Machines, Commercial Freezers, Cold Chain Units
Heat pumps, drying equipment, heat recovery units
Advantages: Wide temperature range (-25~60) ℃ ), stable in wide voltage and high humidity environments
5. Rail Transit and Onboard Equipment
High-speed rail / subway air conditioning units, onboard control cabinet cooling
New Energy Vehicle Battery Thermal Management, Bus Air Conditioning
