Description
The ebmpapst K3G280-RR03-H4 (Siemens A5E37084871) is a high-performance 230 VAC EC centrifugal fan with dimensions of Ø 280 x 156 mm. Custom-engineered in Germany as an OEM cooling component for Siemens drive systems, this single-phase backward-curved fan features an integrated Variable Speed Drive (VSD), dual ball bearings, and an upgraded IP55 degree of protection for demanding industrial environments. Delivering a Working Air Flow of 1589.00 CFM (2700.0 m³/h / 45.00 m³/min) and a Static Pressure Increase of 71.40 mmH₂O (700.0 Pa / 2.81 inH₂O) at a rated speed of 2,550 RPM, it operates on a nominal voltage of 230 VAC within an operating voltage range of 200 – 277 VAC (50/60 Hz). At rated operation (230 V), it features a Max. Current Draw of 2.0 A with a Max. Power Consumption of 460 W and achieves an overall static efficiency of 56.2%. Built for continuous heavy-duty service, it operates in ambient temperatures up to +60 °C and holds safety certifications including CE, EAC, and RoHS.
K3G280-RR03-H4 (A5E37084871) Fan Parameters
Manufacturer: ebmpapst / Siemens
Model Number: K3G280-RR03-H4
Siemens Part Number: A5E37084871
Type: EC Centrifugal Fan (Backward-Curved)
Phase: 1~
Nominal Voltage: 230 VAC
Operating Voltage Range: 200 – 277 VAC (50/60 Hz)
Dimensions: Ø 280 x 156 mm
Impeller Size: 280 mm
Motor Features: VSD Integrated
Bearing Type: Ball Bearing
Degree of Protection: IP55
Rated Speed: 2,550 RPM (min⁻¹)
Max. Current Draw: 2.0 A (@ 230 VAC)
Max. Power Consumption: 460 W (@ 230 VAC)
Max. Air Flow: 1589.00 CFM (2700.0 m³/h / 45.00 m³/min)
Max. Static Pressure: 71.40 mmH₂O (700.0 Pa / 2.81 inH₂O)
Overall Static Efficiency (η): 56.2%
Efficiency Grade: N61 (N=70.4)
Max. Operating Temperature: +60 °C
Country of Origin: Made in Germany
Safety Approvals: CE, EAC, RoHS
Application
The ebmpapst K3G280-RR03-H4 (Siemens A5E37084871) is deployed in Siemens SINAMICS S120 / G120 frequency converters, industrial variable speed drive (VSD) cabinets, high-power inverter enclosures, air handling units (AHU), and heavy-duty automation systems requiring IP55-rated forced-air thermal management.
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