RH63M-6DK.6N.1R Ziehl-Abegg 230/400V AC Centrifugal Fan

Description

The Ziehl-Abegg RH63M-6DK.6N.1R (Article No. 130157) is a high-performance 3-phase AC Centrifugal Fan featuring a 630 mm backward-curved aluminum impeller. Powered by the MK137-6DK.20.U external rotor motor, this 28.20 kg unit is designed for versatile global integration, supporting 230V Delta (Δ) or 400V Star (Y) power supplies. It delivers a maximum air flow of 5474 m³/h at its optimum efficiency point with a pressure increase of 370 Pa, operating at a rated speed of 910 RPM (50 Hz). The unit features IP54 protection, a thermal class 155 (F) rating, and is specialized for moisture and hot climate protection. With its RAL 7032 pebble grey painted motor and G 6.3 balance quality, the RH63M-6DK.6N.1R provides a reliable and efficient air-moving solution for mission-critical industrial ventilation and AHU systems requiring 230V/400V 3-phase power.

RH63M-6DK.6N.1R Fan Parameters
Manufacturer: Ziehl-Abegg
Type: RH63M-6DK.6N.1R
Motor Model: MK137-6DK.20.U (6-Pole)
Phase: 3~
Designation: Single inlet impeller with backward curved blades
Impeller Size: 630 mm
Weight: 28.20 kg

[Electrical Data – 50 Hz]
Nominal Voltage: 230 VAC (Δ) / 400 VAC (Y) ±10%
Power Input (P1): 1.15 kW
Current Draw: 5.20 A (Δ) / 3.00 A (Y)
Speed: 910 RPM
Power Factor (COSY): 0.55
Max. Ambient Temp: 70 °C

[Electrical Data – 60 Hz]
Nominal Voltage: 265 VAC (Δ) / 460 VAC (Y) ±10%
Power Input (P1): 1.90 kW
Current Draw: 6.30 A (Δ) / 3.60 A (Y)
Speed: 1060 RPM
Power Factor (COSY): 0.66
Max. Ambient Temp: 60 °C

[ErP 2015 Data]
Air Flow (qv) at Eta opt: 5474 m³/h
Pressure Increase (pfs) at Eta opt: 370 Pa
Input Power (P1) at Eta opt: 1147 W
Static Efficiency (ηstatA): 52.5 %
Efficiency Grade: Nactual = 62.4 / Ntarget = 62
Frequency Inverter Required: Yes

[Materials & Construction]
Impeller Material: Aluminum
Motor Painting: 1 coat paint resistance class 1 (L-TI-0596)
Motor Colour: RAL 7032 (Pebble grey)
Balance Quality: G 6.3
Degree of Protection: IP54
Thermal Class: 155 (Class F)
Min. Operating Temp: -40 °C
Motor Protection: Thermal contact
Quality of Bearings: Ball bearing with long-time lubrication
Electrical Connection: Supply cable side, 9x 0.82mm² (AWG18) x 105cm
Connection Diagram: 1360-106XA
Installation/Fitting Position: H/Vu/Vo (Any position)

Application
The Ziehl-Abegg RH63M-6DK.6N.1R is a high-duty industrial centrifugal fan engineered for large-scale Air Handling Units (AHU), commercial HVAC systems, and industrial process ventilation. Unlike standard composite models, this specific variant features a robust 630 mm aluminum impeller, making it exceptionally suited for environments with extreme temperature fluctuations (operating from -40 °C to +70 °C) or where metal construction is required for fire safety and mechanical durability.

With its 6-pole MK137-6DK.20.U motor, the unit is optimized for high-volume airflow (8710 m³/h at optimum efficiency) while maintaining high static pressure (370 Pa), effectively overcoming resistance from dense filter banks or long ducting networks. The dual-voltage (230V Delta / 400V Star) flexibility allows for seamless integration into diverse global power grids, particularly in 230V 3-phase industrial sites requiring the 5.20 A high-torque performance. Rated with an efficiency grade of Nactual 62.4, this fan is an ideal choice for energy-conscious FanGrid arrays and pharmaceutical clean rooms where reliable, S1 continuous-duty performance and precise air displacement are mission-critical.