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NEMA Publishes New Guide for Permanent Magnet Motors

03/7/2018 9:00AMSign-up to receive press releases.

ROSSLYN, Va.—Today, the National Electrical Manufacturers Association (NEMA) published a new standard NEMA SM 1-2017 Guide to General-Purpose Synchronous Motors without Excited Rotor Windings. This guide covers general-purpose synchronous motors without excited rotor windings, and provides design metrics for polyphase alternating-current permanent magnet motors rated 500 horsepower and less.  

"This new set of operation and construction guidelines for permanent magnet motors gives us a much needed set of metrics for designing these types of motors, and gives the marketplace confidence that compliant motors will perform reliably for their particular application," said Tim Schumann, service manager of SEW-Eurodrive and chair of the NEMA Motor and Generator Technical Committee.  

NEMA SM 1-2017 is available in hard copy and as an electronic download for $285 on the NEMA website.


The National Electrical Manufacturers Association (NEMA) represents nearly 350 electrical equipment and medical imaging manufacturers that make safe, reliable, and efficient products and systems. Our combined industries account for 360,000 American jobs in more than 7,000 facilities covering every state. Our industry produces $106 billion shipments of electrical equipment and medical imaging technologies per year with $36 billion exports.

Press contact:
Tracy Cullen


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