Current stage: 20.99 Effective date: Aug 7, 2026
Next stage: CD Next stage date: Dec 31, 2026
Originator: IEC
Owner: TC 17/SC 17C
Type: International Standard
ICS: 29.130.10
PUBLISHED IEC 62271-209:2019 ED2
PUBLISHED IEC 62271-209:2019/AMD1:2022 ED2
IN_DEVELOPMENT IEC 62271-209 ED3 20.99 WD approved for registration as CD Aug 7, 2026