DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 60670-24
; VDE 0606-24:2024-12
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment (IEC 60670-24:2011, modified); German version EN 60670-24:2013 + A11:2023
Dosen und Gehäuse für elektrische Installationsgeräte für Haushalt und ähnliche ortsfeste elektrische Installationen - Teil 24: Besondere Anforderungen für Gehäuse zur Aufnahme von Schutzgeräten und ähnlichen energieverbrauchenden Geräten (IEC 60670-24:2011, modifiziert); Deutsche Fassung EN 60670-24:2013 + A11:2023
Overview
This part of the IEC 60670 series of standards applies to enclosures and parts of them for housing protective devices and other power dissipating electrical equipment intended to be used with a rated voltage not exceeding 400 V and a total incoming load current not exceeding 125 A for household and similar fixed electrical installations. These enclosures are intended to be installed in locations where unskilled persons have access. They are intended to be equipped with electrical equipment by skilled persons (installers). These enclosures are intended to be installed where the prospective short circuit current does not exceed 10 kA unless they are protected by current limiting protective devices with a cut-off current not exceeding 17 kA. Enclosures complying with this document are suitable for use at ambient temperature not normally exceeding 40 °C, but their average temperature over a period of 24 h does not exceed 35 °C, with a lower limit of the ambient air temperature of -5 °C. An enclosure which is an integral part of an electrical accessory and provides protection against external influences (for example, mechanical impacts, ingress of solid objects or of water), is covered by the relevant standard for such an accessory. This document does not apply to a low-voltage switchgear and controlgear assembly as defined in the IEC 60439 series or IEC 61439 series nor to a main entrance panel which can be part of the distribution board. This document does not apply to surface type boxes, flush and semi-flush type boxes suitable for the housing of accessories for household and similar use such as switches, electronic switches, socket-outlets, which are covered by IEC 60670-1 only. This document does not apply to low-voltage switchgear assemblies as defined in the IEC 60439 or IEC 61439 series of standards, nor to service entrance distribution boards, which may or may not be part of a distribution board. This document does not apply to surface type boxes, flush and semi-flush type boxes suitable for the housing of accessories for household and similar use such as switches, electronic switches, socket-outlets, which are covered by IEC 60670-1 only. The standard differs from DIN EN 60670-24 (VDE 0606-24):2014-03 as follows: a) the scope excludes type boxes, flush and semi-flush type boxes suitable for the housing of accessories for household and similar use such as switches, electronic switches, socket-outlets, which are covered by IEC 60670-1 only; b) The clauses "8 Markings", "10 Protection against electric shock", "12 Construction", "15 Mechanical strength", "16 Resistance to heat", "18 Resistance of insulating materials to abnormal heat and to fire", "101 Verification of the maximum capability to dissipate power", "102 Verification of temperature rise", and Annex AA and Annex BB have been revised or updated; c) Clause 21 with requirements for electromagnetic compatibility has been added. This document describes the necessary requirements and test methods for dimensions, strength, and other material properties relevant to products falling within the scope of this document.