IEC 61008-1 Ed. 4.0 b:2024

Current Revision
Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules

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Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules

IEC 61008-1:2024 gives general requirements and tests for residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (hereafter referred to as RCCBs), for rated operational voltages not exceeding 440 V AC, with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A, intended principally for protection against shock hazard.

This fourth edition cancels and replaces the third edition published in 2010, Amendment 1:2012 and Amendment 2:2013. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

  • harmonization of all clauses between the IEC 61008, IEC 61009 and IEC 60755 series using blocks and modules approach;
  • harmonization of all tables and figures between the IEC 61008, IEC 61009 and IEC 60755 series;
  • terms and definitions are now referred to IEC 62873-2;
  • modification of 4.1 for classification according to supply conditions;
  • new subclauses 8.17 and 9.24 for requirements and tests for the resistance to temporary overvoltages (TOV);
  • improvement of 9.8 for test of dielectric properties;
  • tests for screwless, flat-quick terminals and aluminium conductors are now referred to the IEC 62873-3 series.
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