Description
The ebmpapst S4D420-AU02-03 is a high-performance industrial AC axial fan with a nominal voltage of 400 VAC and an impeller size of 420 mm, specifically engineered for reliable thermal management in commercial refrigeration and industrial cooling systems. Driven by a robust three-phase M4D094-EA external rotor motor with power ratings ranging from 185 W to 385 W depending on wiring configuration (Δ/Y) and frequency, this unit features a heavy-duty ball bearing system designed for long-term mechanical stability and continuous S1 duty. Its aerodynamic design with 5 blades, constructed from a press-fitted sheet steel blank sprayed with PP plastic, delivers a powerful airflow of 3205 m³/h at its optimum efficiency point while maintaining an overall static efficiency of 32.3%. Built with a black-painted rotor surface and an ABS plastic terminal box, this 6 kg fan provides a dependable and weather-resistant cooling solution with IP54 protection and F4-1 humidity class for industrial condensers, dry coolers, and heat pump infrastructure at the end.
S4D420-AU02-03 Fan Parameters
Model Number: S4D420-AU02-03
Manufacturer: ebmpapst
Motor Model: M4D094-EA
Series: S Series
Type: AC Axial Fan
Impeller Size: 420 mm
Weight: 6 kg
Bearing Type: Ball bearing
Nominal Voltage: 400 VAC (3-phase)
Wiring: Delta (Δ) / Star (Y)
Frequency: 50 / 60 Hz
Power Consumption: 260 W (50Hz Δ) / 185 W (50Hz Y) / 385 W (60Hz Δ) / 220 W (60Hz Y)
Nominal Current: 0.52 A (50Hz Δ) / 0.31 A (50Hz Y) / 0.65 A (60Hz Δ) / 0.37 A (60Hz Y)
Speed: 1360 RPM (50Hz Δ) / 1060 RPM (50Hz Y) / 1490 RPM (60Hz Δ) / 970 RPM (60Hz Y)
Max. Air Flow: 62.23 CFM (105.7 m³/h / 1.76 m³/min)
Max. Static Pressure: 9.81 mmH₂O (96.24 Pa / 0.39 inH₂O)
Actual Air Flow: 3205 m³/h (@ optimum efficiency)
Actual Static Pressure: 95 Pa (Max. back pressure @ 50Hz Δ)
Overall Efficiency (ηes): 32.3 %
Motor Design: Three-phase AC external rotor motor
Motor Protection: Thermal overload protector (TOP) brought out
Insulation Class: Class F
Electrical Hookup: Terminal box
Number of Blades: 5
Direction of Rotation: Counter-clockwise, viewed toward rotor
Airflow Direction: “V” (Exhaust over struts)
Blade Material: Press-fitted sheet steel blank, sprayed with PP plastic
Terminal Box Material: ABS plastic, black
Guard Grille Material: Steel, phosphated and coated in black plastic
Installation Position: Shaft horizontal or rotor on bottom
Degree of Protection: IP54
Humidity Class: F4-1
Operating Temperature: -40 – +60 °C (50 Hz) / -40 – +55 °C (60 Hz)
Storage Temperature: -40 – +80 °C
Standard Compliance: EN 60034-1; CE
Approval Agency: CCC; GOST
Application
The ebmpapst S4D420-AU02-03 AC fan is primarily utilized in industrial refrigeration condensers, dry coolers, air conditioning units, and commercial heat exchangers.
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