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IEC 60938-2 Ed. 3.0 b:2021

Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification on power line chokes
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IEC 60938-2 Ed. 3.0 b:2021

Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification on power line chokes

PUBLISH DATE 2021
PAGES 74
IEC 60938-2 Ed. 3.0 b:2021
Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification on power line chokes
IEC 60938-2:2021 applies to fixed inductors designed for electromagnetic interference suppression, which will be connected to an AC mains or other supply with a nominal voltage not exceeding 1 000 V AC RMS or 1 500 V DC with a nominal frequency not exceeding 400 Hz.
This sectional specification is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory tests of Annex A is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required.
The object of this document is to prescribe standard requirements for safety tests, preferred ratings and characteristics, to select from IEC 60938-1 the appropriate methods of test and to give general performance requirements for suppression inductors.
This edition includes the following significant technical changes with respect to the previous edition:
- the test plan for performance testing has been removed; mandatory safety tests and optional performance tests are listed in one test plan in Annex B;
- requirements for Thyristor-Chokes have been withdrawn;
- material requirements are harmonized with IEC 60939-3 and UL 60939-3;
- AC chokes up to 1 000 V and DC chokes up to 1 500 V are now in the Scope.
SDO IEC: International Electrotechnical Commission
Document Number IEC 60938
Publication Date July 1, 2021
Language b - English & French
Page Count 74
Revision Level 3.0
Supercedes
Committee 40
Publish Date Document Id Type View
July 1, 2021 IEC 60938-2 Ed. 3.0 b:2021 Revision
July 1, 2021 Revision