IEC 62613-1:2019 applies to accessories with
- three phases and earth with pilot contacts,
- one pole for neutral.
These accessories have rated currents not exceeding 500 A and rated operating voltages not exceeding 12 kV 50/60 Hz.
This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) extension of the scope to an unlimited number of pilot contacts (previously limited to 3);
b) update of the Figures and deletion of their embedded texts;
c) insertion of tables of keys whenever required by the Figures.