Control Panel Standards for the North American Market

The North American electrical market is predicted to grow by

0 %
  • in 2019. We support you in safely and successfully building industrial control panels for the US and Canada.

Download our White Paper on the latest changes to UL508A

UL508A 3rd Edition White Paper

Key U.S. standards

The following standards are of vital importance for machine and panel builders:

  • UL508A for Industrial Control Panels
  • NFPA 79 (Electrical Standard for Industrial Machinery) 
  • NEC (National Electrical Code, NFPA 70) for on-site electrical installation

The standards in the U.S. are rapidly changing. In fact, since 2016, all three of the major standards have undergone revision. These changes affect how engineers must design and build control panels. Below, under "More Information", you will find several White Papers and guides on these changes. Have questions? Contact one our experts using the "Contact us" button below!

Key Canadian regulations

The most important Canadian standards and regulations

The following standards are of essential importance to electrical engineers and panel builders:

  • C22.2 No. 286-17 (Industrial Control Panels and Assemblies) – released for certification since May 10, 2018. The transition period is limited and ends in January 2022. See ↗︎CSA Certification Notice
  • C22.2 No. 301-16 (Industrial Electrical Machinery) – released for certification since December 6, 2017. The transition period is limited and ends in January 2022. See ↗︎CSA Certification Notice
  • CEC – Canadian Electrical Code. The current edition 2018 already refers to the mandatory compliance with the two standards in Appendix A of the Code. 

Reliable product and system portfolio

You can rely on our extensive and reliable portfolio of products and systems that takes all North American requirements into account.


To build a control panel that will comply with standards in the USA and Canada, it is not sufficient to simply use components that are certified in accordance with UL or CSA. Right from the start it’s important to include products with the correct certification for the application in the design process. 


Whether a component can be used can be determined from the CCN codes (USA) or the Class Number (Canada). These may be found on the UL and CSA websites, and are also bundled in the Annex to our catalog LV 16.


We will help with the acceptance process by providing certificates that you can download easily using the CAx Download Manager, for example, which can be used to download bundled documents for multiple products.

More Information

Support for control panel standards

Are you aware of the recent changes to control panel standards in the US and Canada?

Control panel standards in the US and Canada are changing. In fact since 2016, all three of the major standards for industrial control panels and machinery have undergone revision in the US. Additionally, Canada also introduced new standards that will take effect in 2022. Siemens provides free resources, consulting, and training on control panel standards and their changes. Contact us to see how we can support you in meeting the standards and staying ahead of your competition!