CHARLOTTE, NC – High-efficiency Rosenberg backward curved fans with single-phase electronically commutated (EC) motors are now available in 10 sizes from 250 to 710 mm (10 to 28 inches). These fans deliver up to 6.75 inches of static pressure or up to 11,000 CFM of airflow, perfect for a wide range of HVAC and air movement applications.

Rosenberg’s full range of sizes includes 250 mm, 280 mm, 315 mm, 355 mm, 400 mm, 450 mm, 500 mm, 560 mm, 630 mm and 710 mm fans, available with or without housings for greater design flexibility.

Rosenberg backward curved EC fans feature extended-life, low-temperature brushless DC motors that are controlled by maintenance-free electronic circuitry. Because of reduced mechanical content, electronically commutated (EC) Rosenberg fan motors run cooler and quieter.

Their external rotor motors are 100 percent speed controllable. Thermal contacts provide standard motor protection. All are CE, UL and RoHS approved. Different input voltages are available.

Rosenberg backward curved fans are available to meet customer-defined specifications including airflow, power, rotational speeds, noise level, overall dimensions and finish.

The Rosenberg family of companies employs more than 1,400 individuals worldwide. Rosenberg USA is headquartered 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