Rotating electrical machines - Dimensions and output series - Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080

IEC 60072-1:2022 is applicable for the majority of rotating electrical machines for industrial purposes within the dimension range and output powers.

- Foot- mounted: shaft heights: 56 mm to 400 mm

- Flange- mounted: pitch circle diameter of flange: 55 mm to 1 080 mm.

This seventh edition cancels and replaces the sixth edition published in 1991. This edition includes the following significant technical changes with respect to the previous edition:

a. modification of the series title;

b. complete revision on the basis of EN 50347;

c. integration of the relationships between frame size, shaft extensions, rated outputs and flange numbers;

d. additional tolerances and measurements for shafts;

e. modification of Annex A with additional frame numbers and relationships between frame size and rated power.