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ANSI/UL 1449 | Mersen
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class="hero__text__surtitle">ANSI/UL 1449 Codes and Standards</div> <h1 class="title">ANSI/UL 1449</h1> <p class="field field--name-field-resume field--type-string-long field--label-hidden field__item">A reference page on ANSI/UL 1449.</p> </div> </div> </div> <ul class="paragraphs"> <li> <div class="paragraph paragraph--type--text paragraph--view-mode--default"> <div class="paragraph__header"> <h2 class="paragraph__header__title">ANSI/UL 1449, 5th Edition, 2021</h2> </div> <div class="clearfix text-formatted field field--name-field-text field--type-text-long field--label-hidden field__item"><p>This is the UL standard for safety and performance for Surge Protective Devices – SPD, for use of end-users, manufacturers, and specifiers.</p> <p><br>As a generalization, UL addresses electrical product safety in areas that involve a risk of fire, electric shock, or injury to persons. UL verifies the safe operation of SPDs through a listing or component recognition process including a series of stringent destructive and non-destructive tests. These ensure safe operation during normal operation and at the unit’s end of life.</p> <p><br>End-of-life characteristics are particularly important because SPDs are placed in harm’s way and can affect the rest of the electrical distribution system. Areas of interest include fault current testing, thermal issues, touch-safety, etc.</p> <p><br>Nationally Recognized Testing Laboratories (NRTLs – such as UL, CSA, Intertek, MET Labs, etc.) provide a valuable service to specifiers and end-users by testing the performance of all SPDs the same way. This is the only ‘common’ testing format in the industry, making it an important barometer of performance.</p> </div> </div> </li> </ul> </div> </article> </div> </div> </div> <a href="#main-content" id="back-to-top"> <i class="icon icon-small-up"></i> <span class="sr-only">Back to top</span> </a> </main> <footer class="footer" role="contentinfo"> <div class="footer__primary"> <div class="region region-footer"> <div id="block-mersen-configpage-footer-main" class="block block-config-pages block-config-pages-block"> <div class="config_pages footer__primary__informations config_pages--type--footer-elements config_pages--view-mode--main-informations config_pages--footer-elements--main-informations"> <img src="/themes/custom/mersen/assets/images/logo-footer.svg" alt="Mersen logo" class="image-style-footer-logo"> <div class="footer__primary__wrapper"> <div class="footer__primary__txt"> <div class="field field--name-field-text-under-logo field--type-string-long field--label-hidden 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