GR31M-2DK.5H.2R Ziehl-Abegg Centrifugal Fans 800W 2820 Rpm 50/60Hz 0.9A

1.Overview of the GR31M-2DK.5H.2R Ziehl-Abegg

The Ziehl-Abegg GR31M-2DK.5H.2R is a high-performance external rotor blower embodying cutting-edge German engineering. It is designed for ventilation and air conditioning (HVAC) systems where energy efficiency, reliability, and quiet operation are crucial. Its innovative aerodynamic design and high-quality materials ensure powerful airflow while significantly reducing energy consumption and operating noise, making it an ideal choice for modern building technology and industrial applications.

Technical Advantages:
Energy Efficiency: Advanced fluid dynamics design increases airflow while reducing energy consumption.
Low-Noise Operation: Optimized impeller structure and motor design ensure quiet operation.
Modular Design: Easy installation and maintenance, compatible with a variety of system configurations.
High Reliability: Suitable for long-term, high-load operation, with a long lifespan and low maintenance costs.

2.Core Features:

Model: GR31M-2DK.5H.2R
Brand: ZIEHL-ABEGG
Origin: Germany
Type: Centrifugal Fan
Motor: MK115-2DK.12U (available in some configurations)
Connection: Cable

Electrical Data
Rated Voltage: 3-500-690 V ±10%
Frequency: 50 Hz (60 Hz operation permitted)
Rated Power: 800 W
Rated Current: 0.9 A
Speed: 2,820 rpm (50 Hz)
Insulation Class: F, with overheat protection
Aerodynamic Data
Impeller Diameter: 310 mm (Backward Curved Blades)
Maximum Air Flow: ≈ 1,650 m³/h (Free Field)
Maximum Static Pressure: 1,500 Pa (Zero Air Flow Point)
Sound Pressure Level: 73 dB(A) @ 1 m (Free Field)
Construction and Materials
Casing: Galvanized Steel + Powder coating
Impeller: High-performance aluminum alloy, two-stage dynamically balanced
Air inlet: Standard φ310 mm flange, 360° rotatable
Air outlet: Rectangular 100 × 92 mm with standard flange hole spacing
Bearings: Maintenance-free sealed ball bearings, L10 ≥ 40,000 h (40°C)
Environmental specifications
Operating temperature: -25 … +70°C (air)
Protection rating: IP 44 (motor), IP 54 optional
Corrosion resistance: C3 (standard), C5-M optional
Certifications: CE, UL, RoHS, REACH

Energy Efficiency and Low Noise: Biomimetic blade designs (such as the ZAplus nozzle or FE2owlet fan technology) optimize airflow, achieving high ventilation efficiency while significantly reducing operating noise. This means it delivers powerful airflow while maintaining a relatively quiet operating environment.

Sturdy and Reliable Motor: The compact outer rotor motor design helps dissipate heat and extend its lifespan. The motor also features a built-in thermal protector to effectively prevent damage from overload and high temperatures.

Robust Mechanical Performance: The fan impeller is dynamically balanced to G2.5, ensuring smooth and low-vibration operation at high speeds, enhancing overall reliability and durability. Some information also indicates that the fan system has obtained various international certifications, including VDE, UL, CCC, EAC, and CE.

Wide Applications: This fan is suitable for a variety of ventilation and air handling applications, including:

Heating, Ventilation, and Air Conditioning (HVAC) systems: such as air handling units and air conditioning modules.

Industrial Applications: Equipment cooling, refrigeration equipment, and machine and system technology.

Special environments: clean rooms, heat pumps and supporting cooling for some ABB inverters.

3.Product details pictures

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