AS/NZS 60335.2.90:2017 deals with the safety of microwave ovens with a cavity door intended for commercial use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances. This Standard will supersede AS/NZS 60335.2.90:2015 three years from the date of publication (i.e. on 13 January 2020).