Description
The ebmpapst R4D500-AT03-08 is a high-performance 400VAC AC Centrifugal Fan featuring a backward-curved, single-intake impeller, specifically engineered for mission-critical cooling in Industrial Frequency Converters and large-scale ventilation systems. Driven by a 3-phase 4-pole M4D138-HF external rotor motor with maintenance-free ball bearings, this 22.3 kg unit operates on a 400 VAC supply delivering a Max. Power Consumption of 1430 / 2250 W and a Max. Current Draw of 3.0 / 3.88 A at a rated speed of 1375 / 1550 RPM. This High-performance unit achieves a Max. Air Flow of 4414.3 / 4944.1 CFM (7500.0 / 8400.0 m³/h / 125.00 / 140.00 m³/min) and a Max. Static Pressure of 54.04 / 68.32 mmH₂O (530.0 / 670.0 Pa / 2.13 / 2.74 inAq). Featuring integrated thermal overload protection and Class F insulation, this 9-blade unit with sheet aluminum construction is optimized for industrial VFD systems requiring massive airflow and robust static pressure in any installation position at the end.
R4D500-AT03-08 Fan Parameters
Model Number: R4D500-AT03-08
Motor Model: M4D138-HF
Manufacturer: ebmpapst
Type: AC Centrifugal Fan (Backward-curved, single-intake)
Impeller Size: 500 mm
Dimensions: 505 x 505 x 249 mm
Weight: 22.3 kg
Bearing Type: Ball bearing
Phase: 3~
Nominal Voltage: 400 VAC
Wiring: Y (Star)
Frequency: 50 / 60 Hz
Method of Obtaining Data: ml (Max. load)
Max. Current Draw: 3.0 / 3.88 A
Max. Power Consumption: 1430 / 2250 W
Rated Speed: 1375 / 1550 RPM
Max. Safe Operating Speed: 1900 / 1900 RPM
Max. Air Flow: 4414.3 / 4944.1 CFM (7500.0 / 8400.0 m³/h / 125.00 / 140.00 m³/min)
Max. Static Pressure: 54.04 / 68.32 mmH₂O (530.0 / 670.0 Pa / 2.13 / 2.74 inAq)
Working Air Flow: 7500.0 / 8400.0 m³/h
Static Pressure Increase: 530.0 / 670.0 Pa
Starting Current: 14.0 / 12.0 A
Number of Blades: 9
Touch Current (IEC 60990): <= 3.5 mA
Motor Protection: Thermal overload protector (TOP) internally connected
Insulation Class: Class F
Degree of Protection: IP20
Environmental Protection Class: F0
Impeller Material: Sheet aluminum
Rotor Surface: Cast in aluminum
Direction of Rotation: Clockwise (viewed toward rotor)
Installation Position: Any
Mode: S1 (Continuous operation)
Ambient Temperature (Max.): 80 / 45 °C
Min. Operating Temperature: -40 °C
Standard Compliance: EN 61800-5-1; EN 60034; CE; EAC
Application
The ebmpapst R4D500-AT03-08 centrifugal fan is the primary cooling component for industrial frequency converters and high-capacity air handling units requiring massive 3-phase AC airflow performance.
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