The company’s Speed-Plus™ motors are the only certified corona-free motors on the market, the company says. The inverter-duty line also boasts a wide speed range, making the units adaptable to meet a variety of requirements, the manufacturer says. Speeds are available at 20:1 at constant torque, standard, and 1,000:1 at constant torque with an additional blower kit. Also available are provisions for mounting various encoders; 120-V a/c blower kits; drive end C-face; drive end D-flange; field convertibility to F-2 conduit box; and brake kits.

A.O. Smith Electrical Products Co., 531 N. Fourth St., Tipp City, OH 45371; 937-667-2431; 937-667-5030 (fax); (Web site).