IEC 62423:2009 

Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses


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The scope of IEC 61008-1 and IEC 61009-1 applies with the following additions. IEC 62423:2009 specifies requirements and tests for Type F and Type B RCDs (Residual Current Devices). Requirements and tests given in this standard are in addition to the requirements of Type A residual current devices. This standard can only be used together with IEC 61008-1 and IEC 61009-1. Type F RCCBs (Residual Current Circuit Breaker) and Type F RCBOs (Residual current Circuit Breaker with Overcurrent protection) with rated frequency 50 Hz or 60 Hz are intended for installations when frequency inverters are supplied between phase and neutral or phase and earthed middle conductor and are able to provide protection in case of alternating residual sinusoidal at the rated frequency, pulsating direct residual currents and composite residual currents that may occur. Type B RCCBs and Type B RCBOs are able to provide protection in case of alternating residual sinusoidal currents up to 1 000 Hz, pulsating direct residual currents and smooth direct residual currents. This second edition cancels and replaces the first edition published in 2007 and constitutes a technical revision. The main changes from the first edition are as follows:
- requirements and tests for Type F RCD have been introduced;
- requirements and test for two-pole Type B RCD have been introduced;
- new additional requirements and tests for Type B RCDs have been introduced to cover requirements for Type F too. The contents of the corrigendum 1 of December 2011 have been included in this copy and the corrigendum 2 of July 2021 applies to the French language only.

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Additional information

Publication typeInternational Standard
Publication date2009-11-20
Available language(s)English/French, Spanish
TC/SCTC 23/SC 23E - Circuit-breakers and similar equipment for household userss
ICS29.120.01 - Electrical accessories in general
29.120.50 - Fuses and other overcurrent protection devices
Stability date  2024
File size1456 KB

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