: Relates specific frame sizes to preferred rated output powers (kW), ensuring consistent performance expectations for a given physical size. iTeh Standards 3. Practical Industry Resources
Related to the "H" dimension (the distance from the center of the shaft to the bottom of the feet). Shaft Dimensions: Diameter and length.
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However, the IEC strictly enforces copyright. Unlike government-issued building codes (which are often free), IEC 60072-1 is a commercially published document. That means a truly unauthorized “free download” is likely illegal, outdated, or of poor quality. Iec 60072-1 Pdf Free Download
The search for an is understandable, especially for independent engineers and students. However, truly free, legal, and complete copies are rare. The good news is that most practical dimension data is available through previews, manufacturer excerpts, and library access.
Once a new edition supersedes an old one, some standards bodies release the previous version for free reference. Check the or the IEC Just Published area. You won’t get the 2022 edition free, but the 2003 edition might be available on less formal academic repositories.
The official source is the IEC Webstore . A current PDF of IEC 60072-1 (the latest edition is from 2022, consolidating amendments) costs approximately 250-300 CHF (Swiss Francs). This is expensive for individuals but standard for corporations. : Relates specific frame sizes to preferred rated
is an international standard titled: “Dimensions and output series for rotating electrical machines – Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080.”
: Specific pitch circle diameters for flange-mounted machines. Output Power Assignments
IEC 60072-1 is an international standard published by the International Electrotechnical Commission (IEC). The full title is generally cited as Shaft Dimensions: Diameter and length
In simpler terms, this standard is the "universal language" of motor dimensions. It defines the physical geometry of electric motors to ensure that a motor from a manufacturer in Germany fits a pump base manufactured in the United States or a conveyor belt system assembled in Japan.
The IEC offers a feature on its webstore. You can view the table of contents, scope, and first few pages for free. This often includes the critical dimension tables (frame numbers 56-400), which might be all you actually need.