Current stage: 50.00 Effective date: Dec 17, 2025
Next stage: RFDIS Next stage date: Jan 7, 2026
Originator: IEC
Owner: TC 91
Type: International Standard
ICS: 31.180
IN_DEVELOPMENT IEC 61249-3-6 ED1 50.00 Final text received or FDIS registered for formal approval Dec 17, 2025