DIN EN 60670-24:2014-03

This part of IEC 60670 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 where unskilled persons have access. They are intended to be integrated with electrical equipment on site by skilled persons (installers). They 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 standard are suitable for use, after installation, at ambient temperature not normally exceeding 25 °C, but occasionally reaching 35 °C over 24 h, 40 °C maximum and -5 °C minimum. The responsible committee is DKE/UK 543.4 "Verlegungs- und Verbindungsmaterial" ("Distribution and joining material") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.