National Electrical Manufactures classifications

There are a number of electric motor types available. These motors are classified by the National Electrical Manufacturers Association (NEMA). These electric motor classifications are presented in the NEMA standards [7]. [Pg.401]

Classification of Motors. Motor and control selection is strongly influenced by the ambient conditions under which they will be operating. The National Electric Manufacturers Association has classified motors according to mechanical features, particularly cooling methods as related to surrounding conditions ... [Pg.138]

One of the first classifications of base materials for printed drcnits (and other electrical components) was completed by the National Electrical Manufacturers Association (NEMA). NEMA s industrial laminating thermosetting products standard documents many of the materials used in printed circuits as well as specifications for some of their properties. Historical NEMA grades are outlined in Table 6.1 and cross-referenced with IPC-4101 in Table 6.2. Some of the commonly used materials have been FR-2, CEM-1, CEM-3, and, of course, FR-4. [Pg.118]

National Electrical Manufacturers Association (NEMA) Classifications... [Pg.421]

Appendix B-3 National Electrical Manufactures Association (NEMA) NEMA Classifications 425... [Pg.425]

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