IEC 60034-8:2026/COR1:2026

INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
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IEC 60034-8 IEC 60034-8
Edition 4.0  2026-06 Édition 4.0  2026-06

Rotating electrical machines - Machines électriques tournantes -
Part 8: Terminal markings and direction of Partie 8 : Marquages des bornes et sens de
rotation rotation
CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

3.8
separate windings
Replace the definition with the following:
two or more separate, non-interconnected windings, each used independently
4.3 AC machines without commutator
Replace the last paragraph with the following:
The primary and secondary symbol allocations are irrespective of whether the primary winding
is located in the stator or rotor. Different symbols can be used on custom machines as agreed
between manufacturer and the purchaser once the nomenclature is clearly identified and does
not pose a risk of incorrect connections.
4.4 Auxiliary devices
Replace the last paragraph with the following:
The above list standardizes the most commonly used auxiliary devices. The designation of other
devices may be chosen by the manufacturer in agreement with the manufacturer and purchaser.
Different symbols may be used on custom machines as agreed between the manufacturer and
the purchaser once the nomenclature is clearly identified and does not pose a risk of incorrect
connections.
IEC 60034-8:2026-06/COR1:2026-07(en-fr)

5 Direction of rotation
Add, in the last paragraph, at the end of the last sentence, the following:
“marked in accordance with IEC 60034-1”.
6.4.1 Three-phase machines
Replace the last paragraph with the following:
Different symbols can be used on custom machines as agreed between manufacturer and the
purchaser once the nomenclature is clearly identified and does not pose a risk of incorrect
connections.
6.4.4 Multiple three-phase group (for example, six-phase) machines
Replace, in the last paragraph, “value” with “level”:
6.8.2 Three-phase electrical machines
Replace the title with the following:
6.8.2 Three-phase machines
7.1 General
Replace the last paragraph with the following:
Different symbols can be used on custom machines as agreed between manufacturer and the
purchaser once the nomenclature is clearly i
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