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Date: 2.16.05
Title: ECOFIT Low-Noise Backward Curved Impellers Are Perfect Fit In Uninterruptible Power Supplies |
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CHARLOTTE, NC – Rosenberg’s ECOFIT® brand motorized fans with backward
impellers are designed to deliver low-noise and highly efficient heat
discharge in today's uninterruptible power supply (UPS) units.
The fans, all with IP44 protection, are produced in a
variety of sizes with maximum airflows of more than 880 CFM. Their
compact wheel is an easy fit in free blowing designs (with screening) in
circular, rectangular and scroll-shaped housings.
Ideal for systems operating in the RRE range, ECOFIT motorized
backward fans have a rated life expectancy of L10 with a minimum 50,000
hours of operation. The fans handle air temperatures up to 158°F.
In UPS applications, ECOFIT offers two popular options. The
first is a tachometer with hall effect sensor plugged into the motor's
three-wire cable. The device monitors the rotation speed of the motor,
switching it off-line when airflow falls below required levels. The
ECOFIT backward impeller fans can also be fitted with a thermal
protection feature. Wired on two leads, the feature sends a signal when
the motor reaches its temperature limit.
In addition to the popular 225 mm (8.9 inch) and 250 mm (9.8 inch) wheel
diameters, ECOFIT fans are available in 192 mm (7.6 inch) and 220 mm
(8.7 inch) sizes. The fans are compact enough to be custom-fit into a
broad variety of brackets from different manufacturers. Some designers
incorporate the fans into their UPS design's inlet cone. Available
accessories include inlet cones, inlet guards and UL listed capacitors.
The Rosenberg family of companies employs more than 900
individuals in Germany, France and the U.S. Rosenberg U.S.A. is
headquartered near Charlotte, N.C. For more information, contact
Rosenberg USA by phone at (704) 289-5423, fax (704) 283-7170 or e-mail sales@rosenbergusa.com.
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