# IEC 61400-4:2012 — Withdrawn and superseded ISO standards For IEC 61400-4:2012, item title is Wind turbines — Part 4: Design requirements for wind turbine gearboxes; status code is 9599; successor is IEC 61400-4:2025; withdrawn / published date is 2012-12-05, recorded from its source on 2026-08-05. - **Identifier:** IEC 61400-4:2012 _(verified: appears in the quote below)_ - **Item title:** Wind turbines — Part 4: Design requirements for wind turbine gearboxes _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** IEC 61400-4:2025 - **Withdrawn / published date:** 2012-12-05 _(verified: appears in the quote below)_ ## What the source says > 44298,IS,,IEC 61400-4:2012,Wind turbines — Part 4: Design requirements for wind turbine gearboxes,Aérogénérateurs — Partie 4: Exigences de conception des boîtes de vitesses d'aérogénérateurs,2012-12-05,1,"['21.200','27.180']",ISO/TC 60,9599,"[41488,43504]",[81370],['en'],146,"IEC 61400-4:2012(E) is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This standard applies to wind turbines installed onshore or offshore. It Standard provides guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this standard include such gea ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).