Standards as High as Your Own
NECA Online Help Desk Please leave a message
Can you shed some light on a situation I have always thought to be fine. I have a #6-3 Romex wall oven circuit that is stand alone in the kitchen. I also have a built in microwave in the cabinet above. As I read it 210.19(A)(3) exept1 allows me to tap off of the oven circuit to supply that microwave. As long as the requirements are met in exception 1 overriding 240.21
Hey Donny thanks for your question. Actually 240.21(A) references 210.19 so you are not really "overriding" it. Conductors, for household cooking appliances, that have an ampacity of at least 20 amperes can be tapped from a 50 ampere branch circuit meeting all the conditions of 210.19(A)(3). The words used are "wall mounted" electric ovens so the microwave would need to be that type. Make sure that if a protective device rating is marked on the appliance it is not exceeded as stated in 422.11(A) and that any instructions are complied with as stated in 110.3(B).
ABOUT CQD: NECA’s Code Question of the Day (CQD) is a leading National Electrical Code® forum for NECA and the industry. The CQD generates a lively dialogue and relative practical and Code-based responses to an ever-increasing and interactive audience.
IMPORTANT NOTICE: All answers are based on the latest edition of the National Electrical Code®, unless the question requests a response based on a specific edition. This correspondence is not a formal interpretation of the NEC®. Any responses expressed to the questions are opinions and do not necessarily represent the official position of NECA, NFPA, or any technical committee. In addition, this correspondence is neither intended, nor should it be relied upon, to provide professional consultation or services.
ABOUT CHARLIE: Charles M. Trout, better known as Charlie, was a nationally known NEC® expert and author. He served on several NEC® technical committees and is past chairman of CMP-12. In 2006 Charlie was awarded the prestigious Coggeshall Award for outstanding contributions to the electrical contracting industry, codes and standards development, and technical training. Charlie was also a member of NECA’s Academy of Electrical Contracting. Charlie’s experienced team of industry experts keep the CQD dialogue and discussions active and informative in the spirit of the man himself, as he wanted.
NECA STANDARDS: NECA publishes the National Electrical Installation Standards™ (NEIS™), a series of ANSI-approved performance and quality standards for electrical construction. Visit NECA-NEIS.org for more information. NEISÃ” can be purchased in three formats: as paper books, on CD, or as electronic downloads.
NECA SAFETY PRODUCTS: NECA publishes valuable electrical safety books and CDs for the industry. Visit necanet.org/store to view or purchase NECA safety products.
CONTACT US: To submit a Code question, subscribe, or unsubscribe from this list, please e-mail: email@example.com.
© 1999 – 2014 National Electrical Installation Standards. All rights reserved.
Brought to you by NECA. NECA is the voice of the electrical contracting industry NATIONAL ELECTRICAL INSTALLATION STANDARDS, NEIS and the NEIS logo are registered trademarks of the National Electrical Contractors Association.
Created by Matrix Group International, Inc.