IEC 62683:2015 establishes the reference dictionary of the general description of low-voltage switchgear and controlgear classes based on defined properties. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This present edition includes the following significant technical changes with respect to the first edition:
a) new descriptions of 41 classes for the families of circuit-breakers and their associated devices (ACC2xx), switches and disconnectors (ACC3xx), control switches (ACC5xx) and terminal blocks (ACC7xx) in addition to 14 classes for motor-starters of the first edition;
b) new associated properties and value lists necessary for the new classes;
c) three new blocks of properties: ACC017 Head of the control circuit device, ACC018 Light block of the control circuit device and ACC041 Over-current release;
d) use of LEVEL_TYPE for replacing minimum and maximum properties into a single property with two values.