Description
Used product. Original ebm-papst 4656 N axial fan, designed for forced cooling of electrical and electronic equipment, electrical panels, inverters, power supplies, and industrial systems.
The photographed component is a compact axial fan directly powered by 230 V AC, with a metal frame, black-painted sheet-steel impeller, motor with impedance protection, and ball bearings. The fan is mounted together with a ventilation grille/front panel with slots, visible in the photographs.
⚙️ Technical Specifications
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Manufacturer: ebm-papst
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Model: 4656 N
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Series: 4000 N
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Type: compact AC axial fan
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Power supply: 230 V AC
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Frequency: 50 / 60 Hz
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Current at 50 Hz: 120 mA
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Power at 50 Hz: 19 W
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Current at 60 Hz: 115 mA
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Power at 60 Hz: 18 W
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Speed: approx. 2650 rpm at 50 Hz; approx. 2950 rpm at 60 Hz
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Airflow: approx. 160 m³/h at 50 Hz
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Airflow: approx. 94 CFM
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Static pressure: approx. 90 Pa
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Noise level: approx. 47 dB(A)
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Fan dimensions: 119 × 119 × 38 mm
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Bearings: ball bearings
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Impeller material: black-painted sheet steel
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Frame material: die-cast aluminum
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Motor type: external-rotor AC motor
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Motor protection: impedance protected
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Insulation class: F
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Operating temperature: approx. −40…+85 °C
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Rotation direction: clockwise, viewed from the rotor side
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Airflow direction: suction through the side with the spokes
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Connection: 2 terminals
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Protection rating: IP20 for the catalog version 4656 N
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Weight: approx. 0.55 kg
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Certifications: VDE, CSA, UL, CE
The dimensional and performance data of the 4656 N model are confirmed by ebm-papst technical documentation: 119 × 119 × 38 mm, 230 V, 2650 rpm, 19 W, 160 m³/h, and 47 dB(A).
⚡ Function in the Electrical System
The function of the ebm-papst 4656 N is to provide forced cooling of the internal components of electrical and electronic equipment.
The fan draws air through the ventilation assembly and directs it through the equipment, helping to control the temperature of:
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photovoltaic inverters;
- power supplies;
- power converters;
- electrical panels;
- automation systems;
- industrial electronic equipment;
- telecommunications systems;
- electrical cabinets and control systems.
The airflow of approximately 160 m³/h provides significant air exchange for a fan of this size.
🔧 Faults, Errors and Symptoms
Fan malfunction can cause:
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increased internal equipment temperature;
- overtemperature alarms;
- reduced performance;
- inverter or equipment shutdown;
- fan failure to start;
- irregular rotation;
- vibrations;
- abnormal bearing noises;
- reduced airflow;
- intermittent shutdown;
- overheating of electronic components.
If the fan is not working, 230 V AC power supply, wiring, terminals, and control circuit must also be checked, together with the mechanical condition of the motor and bearings.
🏭 Construction and Product Condition
The photographed fan is used and shows normal signs of previous installation, use, and handling.
The assembly consists of the ebm-papst 4656 N fan with metal frame and a front ventilation structure visible in the photographs. The impeller and frame appear generally intact, with no evident structural breaks.
🌐 Applications
The ebm-papst 4656 N is suitable for cooling:
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photovoltaic inverters;
- converters and power systems;
- industrial power supplies;
- electrical panels;
- automation cabinets;
- electronic equipment;
- industrial systems;
- telecommunications equipment;
- electronic ventilation systems.
The model is specifically designed as an industrial AC axial fan and is normally used where a direct 230 V AC power supply is available.
🛡️ Safety and Installation
The fan operates directly at 230 V AC and must therefore be treated as an electrical component operating at mains voltage.
Installation, replacement, and testing must only be carried out with the equipment disconnected from the power supply and secured.
During operation, contact with the rotating impeller must be avoided. Adequate airflow through the grille must also be ensured, and foreign objects that could reach the blades must be prevented.
📦 Package Contents
1 × ebm-papst 4656 N axial fan, 230 V AC, 19 W / 18 W, with front ventilation assembly as shown in the photographs.
🚀 Final Description
The ebm-papst 4656 N is a 119 × 119 × 38 mm industrial AC axial fan, powered by 230 V AC, with power consumption of 19 W at 50 Hz and 18 W at 60 Hz. The speed reaches approximately 2650 rpm at 50 Hz, with an airflow of approximately 160 m³/h.
The construction with metal frame, sheet-steel impeller, ball bearings, and impedance motor protection makes it suitable for cooling systems for industrial and electronic equipment.
The photographed component therefore represents an original ebm-papst 4656 N 230 V AC replacement fan, particularly suitable for cooling applications in inverters, electrical panels, power supplies, and industrial equipment.
