{"id":12479,"date":"2023-01-12T20:58:00","date_gmt":"2023-01-12T19:58:00","guid":{"rendered":"https:\/\/b3v39j.myrdbx.io\/ul-wissen\/ul-blog\/things-to-keep-in-mind-when-accepting-switchgear-in-the-u-s\/"},"modified":"2026-07-31T18:53:52","modified_gmt":"2026-07-31T16:53:52","slug":"things-to-keep-in-mind-when-accepting-switchgear-in-the-u-s","status":"publish","type":"blog","link":"https:\/\/krayer.de\/en\/ul-wissen\/ul-blog\/things-to-keep-in-mind-when-accepting-switchgear-in-the-u-s\/","title":{"rendered":"Things to Keep in Mind When Accepting Switchgear in the U.S."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Anyone seeking to have a <strong>control panel<\/strong> for a machine or system approved by <strong>U.S.<\/strong> authorities for the first time will find that the procedure differs significantly from the one typically followed in Europe. In our blog post, we explain why this is the case and whether obtaining <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-blog\/where-is-the-control-cabinet-ul-certified\/\" data-type=\"blog\" data-id=\"1218\">UL certification<\/a> can simplify the approval process. <\/p>\n\n<h2 id=\"bezug-zur-ul\" class=\"wp-block-heading\">Relation to UL<\/h2>\n\n<p class=\"wp-block-paragraph\">A control cabinet that already bears the UL label allows the competent authority to immediately see that it was built by an expert. This means the <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/authority-having-jurisdiction\/\" data-type=\"wiki\" data-id=\"1239\">competent authority can even <\/a>forego inspecting the control cabinet altogether, since compliance is already demonstrated by the <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/ul-listing\/\" data-type=\"wiki\" data-id=\"1473\">UL label<\/a>. <\/p>\n\n<p class=\"wp-block-paragraph\"><div class=\"hw-ray\"><div class=\"hw-ray__text\"><\/p>\n\n<h2 id=\"brandschutz-ist-fur-schaltanlagen-in-den-usa-wichtiger\" class=\"wp-block-heading\">Fire safety is more important for switchgear in the U.S.<\/h2>\n\n<p class=\"wp-block-paragraph\">When the first electrical safety regulations were enacted in the United States, they were aimed not only at preventing accidents but, in particular, at eliminating the hazards associated with <strong>electricity as a source of fire<\/strong>. These historical roots are still evident in the relevant laws today. Anyone who has previously dealt only with switchgear for the European market will notice that <strong>fire protection<\/strong> still plays a significantly greater role in U.S. regulations today. This is also reflected in the requirements that are verified during the system\u2019s acceptance testing.   <\/p>\n\n<p class=\"wp-block-paragraph\"><\/div><div class=\"hw-ray__media\"><img src=\"https:\/\/krayer.de\/wp-content\/uploads\/2024\/03\/ray_nachdenklich_wiki.webp\" alt=\"Ray, the Krayer Systemtechnik mascot, with a thoughtful expression\" width=\"150\" loading=\"lazy\" decoding=\"async\"><\/div><\/div><\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1500\" height=\"1000\" src=\"https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/Elektrofachkraft-bei-Krayer.webp\" alt=\"Control cabinet for delivery to the U.S. is being inspected\" class=\"wp-image-5991\" style=\"width:1235px;height:auto\" title=\"Fire Protection for Control Cabinets: Central to the U.S.\" srcset=\"https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/Elektrofachkraft-bei-Krayer.webp 1500w, https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/Elektrofachkraft-bei-Krayer-768x512.webp 768w, https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/Elektrofachkraft-bei-Krayer-300x200.webp 300w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/figure>\n\n<h2 id=\"wer-nimmt-eine-schaltanlage-in-den-usa-ab\" class=\"wp-block-heading\">Who inspects and accepts switchgear in the U.S.?<\/h2>\n\n<p class=\"wp-block-paragraph\">The acceptance inspection of the switchgear is conducted as part of the acceptance inspection of the entire machine or system at <strong>the site of installation<\/strong> in the United States. An <strong>inspector<\/strong> from the locally responsible authority (Authority Having Jurisdiction, AHJ) is responsible for this process. Exactly which authority this is and who serves as the inspector on its behalf varies from state to state. In some cases, the inspectors are qualified <strong>professionals<\/strong>, such as electrical engineers; however, particularly in rural areas, the acceptance inspection in some states is also conducted by <strong>members of the fire department<\/strong> or the <strong>mayor<\/strong>.   <\/p>\n\n<p class=\"wp-block-paragraph\">Whoever the inspector may be, one thing always remains the same: He is ultimately responsible if a system he has approved has a <strong>defect<\/strong> and damage results as a consequence. For this reason alone, the AHJ inspector will take his duties very seriously and verify <strong>compliance with the relevant regulations<\/strong>. But which regulations does the AHJ inspector actually check for <strong>compliance<\/strong> with?  <\/p>\n\n<p class=\"wp-block-paragraph\">\t\t<div data-elementor-type=\"container\" data-elementor-id=\"12627\" class=\"elementor elementor-12627 elementor-10849\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-583d9e7d red-diamond-left e-con-full e-flex e-con e-parent\" data-id=\"583d9e7d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1945e052 e-con-full foto e-flex e-con e-child\" data-id=\"1945e052\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d282b64 elementor-widget elementor-widget-heading\" data-id=\"2d282b64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Questions about UL?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3129aa26 elementor-widget elementor-widget-text-editor\" data-id=\"3129aa26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Our experts are here to help you, whether you need a quick answer or detailed information. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1a80b7b0 e-con-full e-flex e-con e-child\" data-id=\"1a80b7b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-410efe7d elementor-widget elementor-widget-button\" data-id=\"410efe7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/krayer.de\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get in touch<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-575c39ec elementor-align-end elementor-widget__width-initial elementor-mobile-align-start elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"575c39ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"tel:00497176998880\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\" fill=\"currentColor\" class=\"bi bi-arrow-right\" viewBox=\"0 0 16 16\" style=\"\"><path fill-rule=\"evenodd\" d=\"M1.885.511a1.745 1.745 0 0 1 2.61.163L6.29 2.98c.329.423.445.974.315 1.494l-.547 2.19a.678.678 0 0 0 .178.643l2.457 2.457a.678.678 0 0 0 .644.178l2.189-.547a1.745 1.745 0 0 1 1.494.315l2.306 1.794c.829.645.905 1.87.163 2.611l-1.034 1.034c-.74.74-1.846 1.065-2.877.702a18.634 18.634 0 0 1-7.01-4.42 18.634 18.634 0 0 1-4.42-7.009c-.362-1.03-.037-2.137.703-2.877L1.885.511z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">+49 7176 99 888 - 0<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68ca4c83 elementor-align-end elementor-widget__width-initial elementor-mobile-align-start elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"68ca4c83\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"mailto:office@krayer.de\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\" fill=\"currentColor\" class=\"bi bi-arrow-right\" viewBox=\"0 0 16 16\"><path d=\"M.05 3.555A2 2 0 0 1 2 2h12a2 2 0 0 1 1.95 1.555L8 8.414.05 3.555ZM0 4.697v7.104l5.803-3.558L0 4.697ZM6.761 8.83l-6.57 4.027A2 2 0 0 0 2 14h12a2 2 0 0 0 1.808-1.144l-6.57-4.027L8 9.586l-1.239-.757Zm3.436-.586L16 11.801V4.697l-5.803 3.546Z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">office@krayer.de<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/p>\n\n<h2 id=\"massgebliche-vorschriften-fur-schaltanlagen-in-den-usa\" class=\"wp-block-heading\">Applicable Regulations for Switchgear in the United States<\/h2>\n\n<p class=\"wp-block-paragraph\">As mentioned earlier, the acceptance of a system always takes place as a whole, and the inspection of <a href=\"https:\/\/krayer.de\/en\/ul-508a\/\">the control cabinet<\/a> is part of this process. The <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/nfpa\/\" data-type=\"wiki\" data-id=\"1452\">National Fire Protection Association\u2019s<\/a> <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/nfpa-79\/\">NFPA 79<\/a> standard and the <strong>National Electrical Code<\/strong> (NEC) generally apply here. In addition, individual states and even individual counties may enact their own regulations. The legal situation is therefore not straightforward, and the local authority will insist on <strong>corrective measures<\/strong> if not all regulations are met. But there is an easier way.    <\/p>\n\n<h2 id=\"so-gelingt-die-abnahme-der-schaltanlage-schneller\" class=\"wp-block-heading\">How to Speed Up the Acceptance Process for Switchgear in the U.S.<\/h2>\n\n<p class=\"wp-block-paragraph\">The <strong>acceptance testing of switchgear in the United States<\/strong> can be significantly simplified if its compliance is confirmed in advance by an <strong>OSHA-recognized testing laboratory<\/strong> (<a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/nrtl\/\" data-type=\"wiki\" data-id=\"1461\">Nationally Recognized Test Laboratory, NRTL<\/a>). Since the NRTL standards are based on legal regulations, the local authority having jurisdiction (AHJ) can be confident that a switchgear cabinet with the appropriate certification complies with applicable laws. <\/p>\n\n<h3 class=\"wp-block-heading\">What does UL have to do with the decline in the U.S.?<\/h3>\n\n<p class=\"wp-block-paragraph\">The best-known NRTL in the U.S. is <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/ul\/\" data-type=\"wiki\" data-id=\"1498\">Underwriters Laboratories<\/a><strong> (UL)<\/strong>, which has its own <strong>standard for switchgear<\/strong>, <a href=\"https:\/\/krayer.de\/en\/ul-508a\/\" data-type=\"page\" data-id=\"629\">UL 508A<\/a>. Of course, it would be too expensive for a German company manufacturing for the North American market to have every control cabinet tested individually by UL. It is much more efficient to order UL-compliant switchgear from a <strong>certified manufacturer<\/strong>.  <\/p>\n\n<p class=\"wp-block-paragraph\">The switchgear manufacturer can flexibly design and build the cabinet according to the <strong>customer\u2019s requirements<\/strong> while complying with UL 508A, and affix a <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/ul-listing\/\" data-type=\"wiki\" data-id=\"1749\">UL label<\/a> to it while it is still in Germany. After <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/industrial-installation\/\">industrial assembly<\/a>, the local building authority inspector at the site in North America can immediately verify that the electrical switchgear complies with <strong>legal requirements<\/strong>. This approach also applies to products or systems manufactured in limited quantities or as one-offs. A <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/limited-production-certification\/\">Limited Production Certification<\/a>, which is issued in Germany by a recognized NRTL such as UL, is ideal for this purpose.     <\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1920\" height=\"882\" src=\"https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/UL508A-Fokus.png\" class=\"wp-image-6910\" alt=\"Automatisierte Steuerungssysteme mit Robotik und Kabelmanagement.\" style=\"width:1242px;height:auto\" title=\"UL 508A certification makes approval in the U.S. easier\" srcset=\"https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/UL508A-Fokus.png 1920w, https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/UL508A-Fokus-768x353.png 768w, https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/UL508A-Fokus-300x138.png 300w, https:\/\/krayer.de\/wp-content\/uploads\/2024\/04\/UL508A-Fokus-1536x706.png 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/> <\/figure>\n\n<h3 class=\"wp-block-heading\">UL standards are not laws\u2014and yet they are almost indispensable<\/h3>\n\n<p class=\"wp-block-paragraph\">In this context, people often refer to <strong>\u201cUL approval,\u201d<\/strong> even though this does not constitute an official authorization of a system. From a strictly legal standpoint, a UL label is not required for the <strong>commissioning of the switchgear<\/strong> or the <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/custom-machine-building\/\">(special-purpose) machines<\/a> it controls. UL is also not the only NRTL that certifies switchgear for the U.S., but it is <strong>the oldest and best known<\/strong>. This accounts for <a href=\"https:\/\/krayer.de\/en\/ul-wissen\/ul-blog\/the-importance-of-ul-in-the-united-states\/\">UL\u2019s prominent position in the U.S.<\/a> compared to its competitors.   <\/p>\n\n<p class=\"wp-block-paragraph\">UL is a familiar name to virtually every AHJ inspector, and many of these inspectors rely on the <strong>UL label as <\/strong>a visible sign of certification in their daily work. But it\u2019s not just government officials\u2014 <strong>insurance companies<\/strong> and <strong>wholesalers<\/strong> also place great importance on UL certification. Anyone who forgoes it for a switchgear system is making their path into the U.S. unnecessarily difficult.  <\/p>\n\n<p class=\"wp-block-paragraph\"><h2 class=\"wp-block-heading\"><strong>Zusammenfassung<\/strong><\/h2><p class=\"wp-block-paragraph\"><\/p>\n\n<p class=\"wp-block-paragraph\">Even our brief review has shown that the regulatory approval of equipment and machinery in the <strong>U.S.<\/strong> is no simple matter, since not only must national laws be observed\u2014which differ significantly from our European regulations\u2014but local specifics may also come into play. Nevertheless, it is a significant help if the machine\u2019s <strong>control panel<\/strong> has UL certification. This can speed up the entire process considerably.  <\/p>\n\n<p class=\"wp-block-paragraph\"><\/p><\/p>\n","protected":false},"author":4,"featured_media":12480,"template":"","class_list":["post-12479","blog","type-blog","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/blog\/12479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/types\/blog"}],"author":[{"embeddable":true,"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/users\/4"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/media\/12480"}],"wp:attachment":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/media?parent=12479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}