Description
The ZIEHL-ABEGG RH50E-4DK.6K.1R is a professional-grade 230/400 V 3-Phase Backward Curved Centrifugal Fan with a 500 mm impeller diameter, specifically engineered for variable speed operation (VSD required) in high-static pressure air handling units. Driven by a high-torque 4-pole external rotor motor with THCL 155 (Class F) insulation and moisture protection, this unit features a dual-voltage Delta/Star (Δ/Y) configuration, delivering a precise Power Consumption of 1.60 kW at 1300 RPM (50 Hz). Optimized for high-resistance industrial ventilation, it achieves a maximum air flow of 8500.0 m³/h (5003.0 CFM) with a static efficiency (η statA) of 48.6%, fully compliant with ErP 2013 standards (N=59.0). Constructed with a high-strength aluminum impeller and a 22.00 kg heavy-duty assembly, this German-engineered motorized impeller provides IP54 protection and ensures maximum mechanical stability for mission-critical HVAC applications at the end.
RH50E-4DK.6K.1R Fan Parameters
Model Number: RH50E-4DK.6K.1R
Manufacturer: ZIEHL-ABEGG
Series: RH Series (C-series backward curved)
Impeller Size: 500.0 mm
Weight: 22.00 kg
Bearing Type: Ball bearing with long-time lubrication
Nominal Voltage: 3~ 230/400 VAC +10% (Δ / Y)
Phase: 3~
Frequency: 50 Hz
Rated Performance (Delta Δ, 230V): 1.60 kW | 5.0 A | 1300 RPM | cos φ 0.76 | 60 °C
Rated Performance (Star Y, 400V): 1.60 kW | 2.9 A | 1300 RPM | cos φ 0.76 | 60 °C
Max. Air Flow: 5003.0 CFM (8500.0 m³/h / 141.67 m³/min)
Max. Static Pressure: 3.01 inAq (750.0 Pa / 76.5 mmH₂O)
Working Air Flow: 8500.0 m³/h
Static Pressure Increase: 750.0 Pa
Efficiency Grade: Nactual = 59.0 (Ntarget = 58 / ErP 2013 compliant)
Static Efficiency (η statA): 48.6 %
Motor Type: External rotor motor (4-pole)
Motor Protection: Thermal contact (Thermostatschalter) wired internally
Insulation Class: THCL 155 (Class F)
Degree of Protection: IP54
Speed Control: VSD required (Variable Speed Drive)
Electrical Hookup: Terminal box
Connection Diagram: 1360-108XA (Δ / Y connection)
Number of Blades: 7
Direction of Rotation: Clockwise (viewed toward suction side)
Impeller Material: Aluminum (AlMg3)
Operation Mode: S1 (Continuous operation)
Sound Power Level: 79.0 dB(A)
Service Life (L10): 40,000 h (at 40 °C)
Operating Temperature: -20 – +60 °C
Standard Compliance: CE; EN 60335-1; ErP 2013
Application
The ZIEHL-ABEGG RH50E-4DK.6K.1R centrifugal fan is the primary cooling component for industrial air handling units (AHU), variable air volume (VAV) systems, and large-scale ventilation modules requiring VSD-based precision speed control and high-static pressure in 400V environments.
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