Description
The ebm-papst 4656 N is a heavy-duty compact AC axial fan engineered for demanding thermal regulation across industrial electrical enclosures, process control cabinets, and power distribution systems. Built with an all-metal construction featuring a die-cast aluminum housing and a sheet steel impeller, this unit offers exceptional mechanical resilience, dimensional stability, and resistance to environmental stress. The integrated dual precision ball-bearing assembly ensures prolonged operational service life and continuous duty performance across horizontal, vertical, and tilted orientations.
TECHNICAL SPECIFICATIONS
Manufacturer: ebm-papst
Model: 4656 N
Device Type: AC Axial Compact Cooling Fan
Nominal Voltage: 230 V AC
Voltage Range: 195 to 265 V AC
Operating Frequency: 50 / 60 Hz
Power Input (50 Hz): 19.0 W
Power Input (60 Hz): 18.0 W
Nominal Current (50 Hz): 0.12 A
Nominal Current (60 Hz): 0.11 A
Nominal Rotational Speed (50 Hz): 2650 min⁻¹
Nominal Rotational Speed (60 Hz): 3100 min⁻¹
Maximum Airflow Rate (50 Hz): 160 m³/h
Maximum Airflow Rate (60 Hz): 180 m³/h
Sound Pressure Level (50 Hz): 37 dB(A)
Sound Pressure Level (60 Hz): 42 dB(A)
Sound Power Level (50 Hz): 5.0 Bel(A)
Sound Power Level (60 Hz): 5.5 Bel(A)
Bearing Type: Precision Ball Bearings
Motor Type: Shaded-pole motor with external rotor
Motor Protection: Impedance protection against overload and locked rotor
Housing Material: Die-cast aluminum
Impeller Material: Sheet steel, directly welded onto rotor
Direction of Airflow: Air exhaust over struts
Direction of Rotation: Clockwise (viewed facing rotor)
Electrical Connection: 2 flat plug terminals (2.8 x 0.5 mm)
Operating Temperature Range: -10 °C to +75 °C
Storage Temperature Range: -40 °C to +85 °C
Service Life L10 (at 40 °C): 37,500 hours
Physical Dimensions: 119 mm x 119 mm x 38 mm
Mounting Hole Pitch: 104.8 mm ± 0.2 mm
Mounting Hole Diameter: Ø 4.3 mm
Weight: 0.550 kg
Compliance and Certifications: VDE, CSA, UL, CE, RoHS
INDUSTRIAL APPLICATION PROFILE
The 4656 N is tailored for high back-pressure cooling in sealed industrial environments where plastic components degrade under thermal or chemical exposure. Key application sectors include:
– Industrial Automation: Variable frequency drives (VFDs), servo drives, and PLC control cabinets.
– Power Electronics: Rectifiers, industrial UPS systems, and photovoltaic inverters.
– Telecommunications: Outdoor base stations and data transmission cabinets requiring continuous heat extraction.
– Medical & Laboratory Equipment: High-load diagnostic devices and imaging machines requiring consistent convective cooling.
INTEGRATION & PROCUREMENT
Technical Compatibility: Direct drop-in fit for standard 119×38 mm and 120×38 mm mounting footprints with standard 2.8 mm Faston terminal interface.
Original Engineering: Authentic manufacturer design delivering verified aeromechanical efficiency and stable long-term operation.
Procurement: Standardized inventory profile with immediate fulfillment options to minimize factory maintenance downtime.













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