IEC 60269-4:2009+A1:2012+A2:2016 This Part 4 supplements or modifies the corresonding clauses or subclauses of Part 1. Fuse-links for the protection of semiconductor devices shall comply with all requirements of IEC 60269-1, if not otherwise indicated hereinafter, and shall also comply with the supplementary requirements laid down below. This fifth edition cancels and replaces the fourth edition published in 2006. It constitutes a technical revision. The significant technical changes to the fourth edition are: - the introduction of voltage source inverter fuse-links, including test requirements; - coverage of the tests on operating characteristics for a.c. by the breaking capacity tests; - the updating of examples of standardised fuse-links for the protection of semiconductor devices. This publication is to be read in conjunction with IEC 60269-1:2006. This consolidated version consists of the fifth edition (2009), its amendment 1 (2012) and its amendment 2 (2016). Therefore, no need to order amendments in addition to this publication.