Description
The ZIEHL-ABEGG RH28M-2DK.3F.1R is a high-performance 400VAC three-phase AC Centrifugal Fan featuring a 280 mm high-efficiency Cpro composite impeller, specifically engineered for mission-critical cooling in Industrial Frequency Converters and specialized AHU systems. Driven by a high-torque 2-pole external rotor motor with maintenance-free ball bearings, this 7.00 kg unit operates at 400/460 VAC across 50/60 Hz frequencies, delivering a Max. Power Consumption of 0.53 / 0.86 kW and a Max. Current Draw of 0.95 / 1.25 A at a rated speed of 2750 / 3220 RPM. This High-performance unit features a 7-blade aerodynamic Cpro impeller achieving a Max. Air Flow of 2450.0 / 2880.0 m³/h (1441.9 / 1695.0 CFM / 40.83 / 48.00 m³/min) and a Max. Static Pressure of 81.57 / 112.16 mmH₂O (800.0 / 1100.0 Pa / 3.21 / 4.42 inAq). Featuring a “Made in Germany” robust construction with integrated thermal contacts (TB) for motor protection, this IP10-rated fan is optimized for environments requiring high pressure stability and extreme reliability in industrial VFD systems at the end.
RH28M-2DK.3F.1R Fan Parameters
Model Number: RH28M-2DK.3F.1R
Manufacturer: ZIEHL-ABEGG
Type: AC Centrifugal Fan (Backward-curved)
Impeller Size: 280 mm
Weight: 7.00 kg
Origin: Made in Germany
Bearing Type: Ball bearing (Long-time lubrication)
Phase: 3~
Nominal Voltage: 400 / 460 VAC
Voltage Range: 360 – 506 VAC
Connection Type: Delta / Star (D/Y)
Frequency: 50 / 60 Hz
Max. Current Draw: 0.95 / 1.25 A
Max. Power Consumption: 0.53 / 0.86 kW
Rated Speed: 2750 / 3220 RPM
Max. Air Flow: 1441.9 / 1695.0 CFM (2450.0 / 2880.0 m³/h / 40.83 / 48.00 m³/min)
Max. Static Pressure: 81.57 / 112.16 mmH₂O (800.0 / 1100.0 Pa / 3.21 / 4.42 inAq)
Working Air Flow: 2450.0 / 2880.0 m³/h
Static Pressure Increase: 800.0 / 1100.0 Pa
Motor Protection: Thermal contact (TB) integrated
Insulation Class: Thermal class 155 (Class F / THCL 155)
Degree of Protection: IP54
Number of Blades: 7
Direction of Rotation: Clockwise (viewed toward rotor)
Impeller Material: Cpro Zamid (High-performance composite material)
Ambient Temperature (Max.): 70 / 50 °C
Min. Operating Temperature: -20 °C
Balancing Quality: G6.3
Standard Compliance: CE; UL; EAC; ErP 2015
Application
The ZIEHL-ABEGG RH28M-2DK.3F.1R centrifugal fan is the primary cooling component for industrial frequency converters, cabinet ventilation units, and high-efficiency heat exchangers requiring multi-frequency pressure stability in 400V/460V three-phase environments.
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