NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Standards [CURRENT]

DIN VDE 0100-430 ; VDE 0100-430:2010-10
Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent (IEC 60364-4-43:2008, modified + corrigendum Oct. 2008); German implementation HD 60364-4-43:2010

Title (German)

Errichten von Niederspannungsanlagen - Teil 4-43: Schutzmaßnahmen - Schutz bei Überstrom (IEC 60364-4-43:2008, modifiziert + Corrigendum Okt. 2008); Deutsche Übernahme HD 60364-4-43:2010


This standard contains requirements for protection of active conductors and, thus, of cables and lines regarding the effects of overcurrent and describes how active conductors are to be protected in cases of overload and short-circuiting through one or more installations for the automatic disconnection of the power supply. Safety coordination during overload and short-circuiting is also dealt with. With respect to DIN VDE 0100-430 (VDE 0100-430):1991-11, the following essential changes have been made: a) addition of new informative Annexes A and B; b) information regarding flexible cables/lines has been added to the Scope; c) addition of requirements for overload detection in neutral conductors for harmonic currents; d) addition of requirements that installations for protection against short-circuit currents shall be able to disconnect short-circuit currents and, in the case of circuit breakers, also connect; e) expansion of requirements for protection against overcurrent of parallel switched conductors; f) expansion of requirements when installations for protection against overload currents do not need to be provided; g) insertion of further examples where installations for protection against overcurrent may not be necessary; h) expansion of requirements when installations for protection against short-circuit do not need to be provided; i) addition of requirements for short-circuit rated currents of busbar trunking systems; j) adjustment of the formal structure/clause numbering to the currently valid standards of the groups 100 to 600 of the series DIN VDE 0100 (VDE 0100); k) update of references. The responsible Committee is Subcommittee UK 221.2 "Schutz gegen thermische Auswirkungen/Sachschutz" ("Protection against thermal effects/property protection") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.

Document: referenced in other documents

Responsible national committee

DKE/K 221 - Elektrische Anlagen und Schutz gegen elektrischen Schlag  

Responsible international committee

IEC/TC 64 - Electrical installations and protection against electric schock  

Edition 2010-10
Original language German
Price from 77.18 €
Table of contents


Dipl.-Ing. (FH)

Dirk Barthel

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63069 Offenbach am Main

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