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Throughout Canada, all industries are associated with some governing principles and certifications. These certifications serve the purpose of maintaining the safety and quality of different industries. For highly technical and complex industries such as electrical manufacturers of control panels these certifications are all the more necessary, as maintaining certain standards in these domains is essential.

Two such commonly found certifications in the electrical industry are the ETL and UL listing. In this article, we will understand what these listings are and how they are different from each other.

What is UL listing?

UL (Underwriter Laboratories) is an association accredited by NRTL (Nationally Recognized Testing Laboratory) and the OSHA (Occupational Safety and Health Administration). As part of being recognized by the NRTL, the UL listing undertakes the task of publishing timely updates and minimal standards for products such as certain electronics, plastics, magnetic components, etc. Earlier the UL association worked as a non-profit organization, but in the year 2012, it let go of its non-profit status by getting registered as an LLC (Limited Liability Company).

You might have seen a small mark of UL on a few electrical. This mark is a sign of the product being tested and approved by the UL association for meeting the expectations of the standard of safety published by the UL. The UL listing recognizes smaller components of large products. For example, a power transformer to be used in a PLC will be UL listed.

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What is an ETL Listing?

ETL (Electrical Testing Laboratories) was earlier known as the Lamp Testing Bureau, which was started by Thomas Edison to test light bulb safety in 1896. The company extended its testing standards to other electrical components eventually. Currently, ETL is a division of Intertek Testing Laboratories. Just like UL, ETL is also accredited by the NRTL and the OSHA.

The mark of ETL is also commonly found on electrical components. The products certified by ETL are tested at the ETL laboratory and approved based on the standards of relevant NRTLs.

What is the Difference?

If we talk about the difference between the UL and ETL listings, there is not much difference except for one. Unlike UL listing, ETL does not have its own standards published. The ETL listing is dependent on other relevant NRTL standards to certify the products. And since most of the ETL certified products are tested based on the UL criteria, they both meet the same standards.

You now know that there is no difference between the UL listing and the ETL listing and that ETL marking can also be used instead of UL marking. A good example of the same is the Advanced Axis Fire Panel, which complies with UL rating and has an ETL marking. When you plan to choose a control panel for your industry, make sure to check for these standards. Rotaflow is an Advanced Fire Panel Western Canada Distributor, get in contact with us to spec your next fire system today.

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