Deals with the safety of electric instantaneous water heaters for household and similar purposes and intended for heating water below boiling temperature.The rated voltage being not more than 250 V for single phase and 480 V for other appliances. The contents of the corrigendum of April 2007 have been included in this copy.This consolidated version consists of the fourth edition (2002) and its amendment 1 (2006). Therefore, no need to order amendment inaddition to this publication.