These requirements cover household and commercial microwave cooking appliances operated in the Industrial@ Scientific and Medical (ISM) bands of 915 ??25 and 2450 ??50 MHz@ for use in ordinary locations in accordance with the National Electrical Code@ NFPA 70@ and rated not more than 600 V. These requirements also cover microwave cooking appliances intended for built-in installation@ side-by-side mounting@ stacking@ wall mounting and installation over ranges. For the purpose of these requirements@ commercial microwave cooking equipment is that usually found in commercial kitchens@ restaurants@ or other business establishments where food may be dispensed. Household microwave cooking equipment is that intended for household use. These requirements also cover the microwave cooking portion of a household electric range. The combination is to comply with the Standard for Household Electric Ranges@ UL 858.
2022UL 923 CRD-2022 UL Standard for Safety Microwave Cooking Appliances - Section / Paragraph Reference: 36A.1, 36A.3, 72.4 Subject: Clarification for Two-step opening requirement for Child Resistant Microwave Oven Door
2020UL 923-2020 UL Standard for Safety Microwave Cooking Appliances (Seventh Edition; Reprint with Revisions Through and Including July 19@ 2017)
2018UL 923 BULLETIN-2018 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: September 17@ 2018)
2017UL 923 BULLETIN-2017 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: July 10@ 2017)
2016UL 923 BULLETIN-2016 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: October 31@ 2016)
2015UL 923 BULLETIN-2015 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: August 3@ 2015)
2014UL 923 BULLETIN-2014 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: May 19@ 2014)
2013UL 923 CRD-2013 UL Standard for Safety Microwave Cooking Appliances - Section/Paragraph Reference: 11.2 Subject: Clarification on Electrical Connections of Interlock Monitor (Edition 6: April 01@ 2008)
2013UL 923 BULLETIN-2013 UL Standard for Safety Microwave Cooking Appliances (COMMENTS DUE: March 04@ 2013)