Standard IEC 60947-3-ed.4.1+Amd.1-CSV 25.4.2025 preview

IEC 60947-3-ed.4.1+Amd.1-CSV

Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units

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STANDARD published on 25.4.2025


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The information about the standard:

Designation standards: IEC 60947-3-ed.4.1+Amd.1-CSV
Publication date standards: 25.4.2025
SKU: NS-1219860
The number of pages: 217
Approximate weight : 682 g (1.50 lbs)
Country: International technical standard
Category: Technical standards IEC

The category - similar standards:

SwitchesLow voltage switchgear and controlgear

Annotation of standard text IEC 60947-3-ed.4.1+Amd.1-CSV :

IEC 60947-3:2020+AMD1:2025 CSV applies to switches, disconnectors, switch-disconnectors and fuse-combination units and their dedicated accessories to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC. This fourth edition cancels and replaces the third edition published in 2008, Amendment 1:2012 and Amendment 2:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of critical load current tests for DC switches (see 9.3.9); - addition of requirements for a conditional short-circuit rating for disconnectors, switches, and switch-disconnectors protected by circuit-breakers (see 9.3.7.2); - addition of new categories for high-efficiency motors switching (see Annex A); - addition of new Annex E for connection to aluminium conductors; - addition of new Annex F for power losses measurement. The contents of the corrigendum of October 2021 have been included in this copy.

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