CHARLOTTE, NC – Rosenberg’s ECOFIT® brand motorized backward-curved motorized impellers deliver low-noise and highly efficient air cooling in uninterruptible power supply (UPS), variable frequency drive (VFD), and other rectifier or inverter applications. Both AC and electronically commutated EC models are available.

These fans are ideal for air conditioning, supplemental cooling, rack or in-row equipment cooling. They feature a rated life expectancy L10 with a minimum 50,000 hours of operation at air temperatures up to 158°F. IP44 protection is standard.

The ECOFIT backward curved line includes fans with diameters of 180 mm (7.09 inches), 192 mm (7.56 inches), 220 mm (8.7 inch), 225 mm (8.9 inch), 250 mm (9.8 inch), 280 mm (11 inch), and 315 mm (12.4 inch) offering maximum airflow of more than 1,200 CFM.

The innovative blade design ensures noise is reduced to a minimum. Their compact design and wide range of sizes make the fans a perfect fit in a broad variety of equipment. Available accessories include inlet cones, inlet guards, and UL listed capacitors. ECOFIT also offers popular options such as thermal protection and a tachometer to monitor the rotation speed of the motor.

In addition to standard products, ECOFIT fans can be built to specifically meet customers’ unique needs such as special finishes, voltages, or frequencies.

About Rosenberg

The Rosenberg family of companies is headquartered in Künzelsau, Germany and employs more than 1,400 individuals worldwide. Rosenberg fans and blowers can be found in HVAC systems, as well as industrial and portable air conditioning; in air cooling for variable frequency drives (VFD), wind power generators and power converters, solar inverters, uninterruptable power supplies (UPS), transformers, heat sinks, fan coils, telecom racks and other industrial equipment; in air handling units and fan filter units (FFU); and in data center, railway, marine, military and avionics equipment.

Rosenberg USA is located just outside Charlotte in Indian Trail, N.C. For more information, or to place an order, contact Rosenberg USA by phone at (704) 893-0883; fax (704) 882-0755 or e-mail