National Electrical Manufacturers Association published NEMA MG 1-2011 Condensed Information Guide for General Purpose Industrial AC Small and Medium Squirrel-Cage Induction Motor Standards. Condensing standard NEMA MG 1-2011 Motors and Generators, document has parts of original reprinted in entirety while others have been combined or abbreviated. Changes include Feb 2011 revision of Premium Efficiency Motor tables for medium motors adding efficiency values for 8-pole premium efficiency ...This story is related to the following:Trade Associations