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 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. This second edition cancels and replaces the first edition published in 2005 and constitutes a technical revision. The following major changes from the first edition are introduced:

- new definition for basic, general purpose enclosures (GP enclosure) and enclosures for pre-determined equipment (PD enclosure);

- new classification and marking for general purpose enclosure (GP enclosure) and enclosure for pre-determined equipment (PD enclosure);

- required data for instruction sheet and/or documentation according to the type of enclosure;

- adequate space to allow mounting and connection of the accessories (fully equipped) as declared by the manufacturer;

- requirements for general purpose enclosure (GP enclosure) as in Clause 101;

- requirements for enclosure for pre-determined equipment (PD enclosure) as in Clause 102;

- instructions to be given by the manufacturer of