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DIN EN IEC 61400-4 VDE 0127-4:2026-04

Wind energy generation systems

Part 4: Design requirements for wind turbine gearboxes

(IEC 61400-4:2025); German version EN IEC 61400-4:2025
Class/Status: Standard, valid
Released: 2026-04
VDE Art. No.: 0100908

Note: You can pre-order this document (delivery subject to availability). Valid from 2026-04-01.

IEC 61400-4 outlines minimum requirements for specification, design, and verification of gearboxes in wind turbines. It is intended for use by experienced gear designers capable of selecting reasonable design factors, based on knowledge of similar designs and the effects of such items as lubrication, deflection, manufacturing tolerances, metallurgy, residual stress, and system dynamics.

Replacement for:
DIN EN 61400-4 VDE 0127-4:2013-10

This Document is related to the following Topics (in bold):

21	MECHANICAL SYSTEMS AND COMPONENTS FOR GENERAL USE
21.020	Characteristics and design of machines, apparatus, equipment
21.200	Gears
27	ENERGY AND HEAT TRANSFER ENGINEERING
27.010	Energy and heat transfer engineering in general
27.015	Energy efficiency. Energy conservation in general
27.060	Burners. Boilers
27.070	Fuel cells
27.075	Hydrogen technologies
27.080	Heat pumps
27.100	Power stations in general
27.120	Nuclear energy engineering
27.140	Hydraulic energy engineering
27.160	Solar energy engineering
27.180	Wind turbine energy systems
27.190	Biological sources and alternative sources of energy
27.200	Refrigerating technology

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DIN EN IEC 61400-4 VDE 0127-4:2026-04

Wind energy generation systems

Part 4: Design requirements for wind turbine gearboxes

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