National Electrical Installation Standards

Standards as High as Your Own

?
Tuesday, September 5, 2017

Question:

Charlie, Great work with the code question of the day.

Can you let me know if we are allowed to use clear tap connectors to wire 480 volt motors 5 HP and above?

Respectfully Submitted,

Angelo Sciandra

A

Answer:

Hey Angelo thanks for your question and the compliment. Article 430 does not have details on specific types of methods or products to be used for motor terminations. Section 110.14 has general requirements for electrical connections. Several manufactures make "clear tap connectors" and they are not prohibited from being used for motor terminations but might be too large to fit in motor terminal housings.  Some manufactures have products that are specifically designed for motor terminations which can help facilitate future motor repair and replacements, Check with the manufacturer to determine if the connector you are considering is intended or suitable for motor terminations and as always follow the instructions provided including any torqueing values.

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. NEISÔ 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: codequestion@necanet.org.