IEC 60947-3:2020+AMD1:2025 CSV
IEC 60947-3
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.
The content of amendment(s) is incorporated into the publication. The track changes mode shows where the publication has been modified by the amendment.
DiscoverTechnical committee
TC 121/SC 121A Low-voltage switchgear and controlgearCategory
Electromagnetic Compatibility| Publication type | International Standard |
| Publication date | 2020-04-22 |
| Edition | 4.0 |
| ICS | 29.120.40 29.130.20 |
| Stability date | 2028 |
| ISBN number | 9782832281536 |
| Pages | 190 |
| File size | 4.24 MB |
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