![](https://hecoinc.com/wp-content/uploads/2023/12/Understanding-Frame-Number-Suffixes-in-NEMA-Standards.png)
NEMA Standards, Part 3 – Understanding Frame Number Suffixes
December 6, 2023
By defining how motors are designed, built, and referred to on their respective nameplates, standards from the National Electrical Manufacturers Association apply to all electric motor manufacturers to ensure that all manufacturers follow identical dimension data and naming conventions. Known as NEMA frame sizes or electric motor frame sizes, these electric motor dimensions assist operators, manufacturers, …