IEC 60670-24:2011 PDF Download

IEC 60670-24:2011 is a standard that specifies the requirements for enclosures used to house protective devices and other electrical equipment that dissipates power. It applies to enclosures 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 of the standard replaces the first edition published in 2005 and includes several revisions.

One of the major changes is the introduction of new definitions for two types of enclosures: general purpose enclosures (GP enclosures) and enclosures for pre-determined equipment (PD enclosures). The standard also includes a new classification and marking system for these enclosures. Additionally, the standard specifies the required data for instruction sheets and documentation based on the type of enclosure.

The standard also emphasizes the need for adequate space within the enclosures to allow for the mounting and connection of accessories as declared by the manufacturer. It includes specific requirements for both GP enclosures and PD enclosures, outlined in Clause 101 and Clause 102 respectively. The standard also provides instructions for manufacturers to instruct installers on integrating accessories into the enclosures.

It is important to note that this standard should be read in conjunction with IEC 60670-1:2002, which provides general requirements for enclosures for electrical accessories for household and similar fixed electrical installations.