Current stage: 40.60 Effective date: Nov 21, 2025
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 40.60 Close of voting Nov 21, 2025