Current stage: 50.00 Effective date: Aug 17, 2026
Next stage: RFDIS Next stage date: Sep 7, 2026
Originator: IEC
Owner: TC 69
Type: International Standard
ICS: 43.120
PUBLISHED IEC 61851-1:2017 ED3
PUBLISHED IEC 61851-1:2017/COR1:2023 ED3
PROJECT IEC 61851-1 ED4 50.00 Final text received or FDIS registered for formal approval Aug 17, 2026