IEC 60947-1:2020 PDF Download

IEC 60947-1:2020 is a standard that applies to low-voltage switchgear and controlgear, which are devices used to control and protect electrical circuits. The equipment covered by this standard is intended to be connected to circuits with a rated voltage not exceeding 1,000 V AC or 1,500 V DC.

The standard lays out general rules and common safety requirements for this type of equipment. It provides definitions, specifies characteristics of the equipment, and outlines the information that should be supplied with the equipment. It also covers topics such as normal service conditions, mounting and transport, decommissioning, and dismantling.

Additionally, the standard sets constructional and performance requirements, and provides guidelines for verifying the characteristics and performance of the equipment. It also addresses energy efficiency and environmental aspects.

This sixth edition of the standard replaces the previous edition from 2007 along with its two amendments. It includes various technical changes, such as improvements in testing DC values, updates in EMC tests, and the deletion of Annex B. It also introduces new examples in Annex R, updates requirements for environmental tests, and includes a new annex for co-ordination between short-circuit protective devices in the same circuit.