Rosenberg USA Backward Curved Fan N43-28006

Rosenberg GKHM 280-CIE.065.4EA IE MX E-series backward curved EC fan with a 280 mm polyamide (PA66), glass fiber-reinforced, black impeller, seven backward-curved blades, and a circumferential diffuser. The impeller is statically and dynamically balanced to DIN ISO 1940 quality level G6.3. Mounted with an external rotor EC motor, it delivers 2044 m³/h airflow at 1058 Pa static pressure, 4000 r/min speed, 1.02 kW input power, and 65% efficiency at 380-480 V, 50/60 Hz. It meets IP54 protection, IE4 efficiency rating, and has an A-weighted sound power level of 77 dB(A) at 1 m distance. The inlet cone is galvanized steel. Performance is certified per AMCA 211 and 311 for installation type A with free inlet and outlet.