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  • On-demand Webinar

2021 Update: Short-Circuit Current Rating for Machinery

Learn how a short-circuit current rating (SCCR) is determined for machinery per the 2021 edition of the National Fire Protection Association (NFPA) 79.

Industrial machinery with open control panel

Join UL and Eaton's Bussmann division experts as they delve deeper into how a short-circuit current rating (SCCR) is determined for machinery per the 2021 edition of the National Fire Protection Association (NFPA) 79. The focus will be on the key requirements in NFPA 79 related to SCCR. 

This webinar will discuss the requirements of the 2021 edition of NFPA 79 to help you navigate their intricacies. Determining the SCCR for machinery may not be as simple as determining the SCCR for a single control panel. The process can be quite complex.

In this webinar, you will learn about:

  • SCCR and its benefits for industrial machinery
  • Important definitions related to machinery
  • Meeting industrial machinery codes and standards for SCCR requirements
  • SCCR and available fault current with multipanel machines
  • Labeling SCCR on machinery
  • SCCR versus arc flash

This webinar will also cover a basic understanding of SCCR and how it relates to both control panels and machinery. Included will be a discussion on the importance of having an adequate SCCR for machinery based on the available fault current of the source supplying the machine. Finally, the webinar will conclude with an explanation of how arc flash relates to the selection of proper personal protective equipment (PPE) and the significance of selecting proper PPE for worker safety. 

Speakers:

  • John Kovacik, principal engineer, industrial control equipment, UL
  • Joe Pavia, professional engineer (P.E.), field application engineer, Bussmann division, Eaton

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