Join UL and Eaton Bussman Division for a Series of Three Live Webinars

EIN eaton UL 400

Sept 12, 2019

Determining SCCR for Industrial Control Panels and Industrial Machinery

A short-circuit current rating (SCCR) for equipment is required by NEC® 409.110(4) and 670.3(A). SCCR represents the maximum amount of current that the assembly can safely withstand under short-circuit conditions. Additionally, the following general statement related to SCCR is included in NEC 110.10:

“The overcurrent protective devices, the total impedance, the equipment short-circuit current ratings, and other characteristics of the circuit to be protected shall be selected and coordinated to permit the circuit protective devices used to clear a fault to do so without extensive damage to the electrical equipment of the circuit.”

Understanding how the SCCR of an industrial control panel is determined and what the markings on the product signify will help ensure that the industrial control panel is adequate for the available fault current at the point of installation.

Join UL and Eaton’s Bussmann division experts for a live webinar on October 30th at 10am CST as they delve further into determining SCCR for industrial control panels as per the 3rd edition of UL 508A. 

Go HERE to register

Common Misapplications of Components in Industrial Control Panels

Each component in an industrial control panel must be properly applied for safe and reliable operation. The application requirements for each component are often quite complex and unique to the component, resulting in erroneous interpretation, leading to improper use of the component. We will review some of the most common misapplications of components within the panel.

Join UL and Eaton’s Bussmann division experts for a live webinar on November 20th at 2:30pm CST as they delve further into how to avoid common misapplications in industrial control panels.

Go HERE to register

Short-Circuit Current Rating Versus Arc Flash

How does arc flash relate to SCCR? 

Equipment SCCR represents the maximum amount of short-circuit (fault) current that the assembly can safely withstand under short-circuit conditions.  When the industrial control panel or industrial machinery does not have an adequate SCCR for the available short-circuit (fault) current an electrical hazard exists.

Want to learn more? Join UL and Eaton’s Bussmann division experts for a live webinar on December 3rd at 10am CST as they delve further into how arc flash is different from SCCR.
 
Go HERE to register

Related Articles

Sophie Brochu

Sophie Brochu to leave Hydro-Québec on April 11

January 12, 2023 Sophie Brochu, Hydro-Québec’s President and Chief Executive Officer, has informed the Chair of the Board, Jacynthe Côté, that she will be stepping down on April 11, 2023. “Sophie’s contribution—marked by her human approach, strong communication skills and vast experience in the energy sector—will stand the test of time,” declared Jacynthe Côté. “Under her…

Latest Articles

  • Declines in Ontario and Manitoba Construction Intentions Push Down the Non-Residential Sector

    Declines in Ontario and Manitoba Construction Intentions Push Down the Non-Residential Sector

    December 16, 2024 The total value of building permits issued in Canada decreased by $399.1 million (-3.1%) to $12.6 billion in October. This comes on the heels of a strong September, during which construction intentions rose by $1.3 billion to the second-highest level in the series. Despite the monthly decline in October, the total value of building permits… Read More…

  • Lighting Control Basics for Home Automation

    Lighting Control Basics for Home Automation

    By Matthew Biswas Do your eyes roll when you hear terms like Smart home technology?  Or are you a true believer?  As it turns out controlling electrical devices via low-voltage technology can be easier to implement and use than many of us thought. The Lutron Caseta system uses the internet and Radio Frequency to instantly… Read More…

  • Grounded in Ontario: The Future of Energy Storage Systems

    Grounded in Ontario: The Future of Energy Storage Systems

    December 16, 2024 Technical Advisor Trevor Tremblay explains why following best practices and relying on licensed professionals will ensure a smooth and secure transition when integrating this exciting new technology. Energy Storage Systems (ESS) are revolutionizing the way individuals and businesses manage energy, providing cost-saving opportunities, increased energy reliability, and a pathway toward sustainability. In… Read More…

  • 4 in 5 Canadians See Electrifying Public Transit as Key to Advancing Climate Action, Schneider Electric Survey Finds

    4 in 5 Canadians See Electrifying Public Transit as Key to Advancing Climate Action, Schneider Electric Survey Finds

    December 13, 2024 Schneider Electric has released new survey findings showing Canadians are increasingly concerned about the environmental impact of traditional public transit emissions. According to the survey, 83 per cent of Canadians recognize the need for electrified transit to support a sustainable future and are seeking actionable and innovative solutions to ease the nation’s… Read More…

Changing Scene