IEC 60335-2-4:2008 deals with the safety of spin extractors incorporated in washing machines that have separate containers for washing and spin extraction for household and similar purposes that have a capacity not exceeding 10 kg of dry cloth and a drum peripheral speed not exceeding 50 m/s, their rated voltages being not more than 250 V for single-phase appliances and 480 V for other appliances. The principal changes in the this edition as compared with the fifth edition of IEC 60335-2-4 are as follows: aligns the text with 60335-1:2001, and its Amendments 1 and 2; clarifies criteria for the protection against mechanical hazards for double lid appliances (20.103 and 20.104); some notes have been converted to normative text (clause 1, 20.102 and Annex AA).