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}/* End custom CSS */</style>{"id":12689,"date":"2024-03-21T07:08:49","date_gmt":"2024-03-21T06:08:49","guid":{"rendered":"https:\/\/b3v39j.myrdbx.io\/ul-wissen\/ul-wiki\/ul-approval\/"},"modified":"2026-07-31T19:57:19","modified_gmt":"2026-07-31T17:57:19","slug":"ul-approval","status":"publish","type":"wiki","link":"https:\/\/krayer.de\/en\/ul-wissen\/ul-wiki\/ul-approval\/","title":{"rendered":"UL Approval"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">In English-speaking countries, &#8221; <strong>UL Approval<\/strong> &#8221; refers to the certification of a product or component by UL, the best-known government-recognized testing laboratory in the United States.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"bezug-zur-ul\">Relation to UL<\/h2>\n\n<p class=\"wp-block-paragraph\">Since many regulatory authorities and facility operators require UL certification, UL approval is an important factor for exporting products to the United States.<\/p>\n\n<p class=\"wp-block-paragraph\"><div class=\"hw-ray\"><div class=\"hw-ray__text\"><\/p>\n\n<h2 class=\"wp-block-heading\" id=\"das-ul-approval-als-kennzeichen-fur-sicherheit-und-qualitat\">UL Approval as a Mark of Safety and Quality<\/h2>\n\n<p class=\"wp-block-paragraph\">To be eligible for UL approval, products or components must be tested in accordance <strong>with UL standards<\/strong>. UL is a private testing laboratory recognized by the U. <strong>S<\/strong>. Occupational <strong>Safety<\/strong> and Health <strong>Administration<\/strong> ( <a href=\"https:\/\/krayer.de\/wiki-ul-steuerschraenke\/osha\/\">OSHA<\/a>). Any private testing laboratory can offer tests based on its own standards. However, government recognition as <a href=\"https:\/\/krayer.de\/wiki-ul-steuerschraenke\/nrtl\/\"><strong>a Nationally Recognized Testing Laboratory<\/strong> (NRTL)<\/a> is only possible if the service provider\u2019s standards are aligned with the requirements of national laws.   <\/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=\"\" width=\"150\" loading=\"lazy\" decoding=\"async\"><\/div><\/div><\/p>\n\n<h3 class=\"wp-block-heading\">UL is the most widely recognized NRTL in the United States<\/h3>\n\n<p class=\"wp-block-paragraph\">Currently, only <strong>19 private testing laboratories<\/strong> meet the strict requirements for recognition as an NRTL. UL is not only the oldest of these laboratories, but also the best known. A UL approval therefore carries significant weight among private and commercial end users as well as government officials. This goes so far that <strong>UL\u2019s standards<\/strong> are sometimes even referenced when a law such as the National Electrical Code ( <a href=\"https:\/\/krayer.de\/wiki-ul-steuerschraenke\/nfpa\/#nfpa79\">NEC\/NFPA 79<\/a>) is to be revised. Given such authority, it is surprising that UL approval does not actually officially exist.    <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"warum-es-eigentlich-kein-ul-approval-gibt\">Why There Isn&#8217;t Actually a UL Approval<\/h2>\n\n<p class=\"wp-block-paragraph\">In colloquial speech in the U.S. and Canada, people often say that a product or component is \u201cUL approved,\u201d just as we in German often use the term <strong>\u201cUL certification.\u201d<\/strong> However, both terms are <strong>incorrect<\/strong>. UL does not grant approvals for products; rather, it issues its own labels, which serve as an <strong>externally visible indication<\/strong> that the tested product meets the requirements set forth in UL standards. These labels can be issued for virtually any product.   <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"welche-produkte-konnen-ein-ul-approval-tragen\">Which products are eligible for UL approval?<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong>Underwriters Laboratories<\/strong> was originally founded with the goal of better managing the hazards posed by electricity\u2014which was a novelty at the time\u2014namely electric shock and fire hazards. This is still evident in UL today, as <strong>electrical safety<\/strong> and <strong>fire protection<\/strong> remain the organization\u2019s core competencies. Unlike in the past, UL now offers a wide range of certifications, ranging from software solutions and financial products to solar power systems and the environmental sustainability of landfills.  <\/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 class=\"wp-block-heading\" id=\"welche-arten-des-ul-approvals-gibt-es\">What types of UL approvals are there?<\/h2>\n\n<p class=\"wp-block-paragraph\">Given such a wide variety of <strong>certifiable products<\/strong>, it stands to reason that there cannot be just one type of UL approval for all applications. This overview is therefore limited to the certification marks and UL approvals that are most widely used in <strong>industrial settings<\/strong>. <\/p>\n\n<h3 class=\"wp-block-heading\">UL Listing<\/h3>\n\n<p class=\"wp-block-paragraph\">A <strong>UL listing<\/strong> is granted for finished products when representative samples have demonstrated that the product complies with the relevant UL standards. This label is therefore primarily intended for <strong>customers<\/strong>, who can thus be confident that the product they have purchased fully meets UL\u2019s safety requirements. It is the <strong>best-known certification mark<\/strong> and is therefore usually what is meant when people refer to a UL approval or UL certification. Such <strong>UL certification<\/strong> can also be granted for components intended for on-site assembly.   <\/p>\n\n<h3 class=\"wp-block-heading\">UL-Recognized Component<\/h3>\n\n<p class=\"wp-block-paragraph\">A <a href=\"https:\/\/krayer.de\/wiki-ul-steuerschraenke\/ul-recognized-components\/\"><strong>UL Recognized<\/strong><\/a><strong>label,<\/strong> on the other hand, can only be granted to components that are <em>not <\/em>intended <em>for <\/em>installation by the end user. This UL approval is therefore of little relevance to consumers. For <strong>manufacturers<\/strong> of <strong>UL-certified products<\/strong>, however, it is all the more important, as the use of such components facilitates the approval of the finished product. UL inspectors can immediately verify that the components installed in the product meet the institute\u2019s requirements. If components are installed by the end user in violation of the regulations, the UL listing may be revoked.    <\/p>\n\n<h3 class=\"wp-block-heading\">UL Classified<\/h3>\n\n<p class=\"wp-block-paragraph\">A <strong>UL Classified label<\/strong> is awarded when a product has been successfully tested to <strong>ensure it meets specific requirements<\/strong>. However, the testing applies only to this one characteristic, not to the safety of the product as a whole. A product that is UL Classified may be labeled as such, but it must be clearly indicated that it is <em>not<\/em> a fully tested product. This is stipulated <strong>in UL\u2019s marketing guidelines<\/strong>.   <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"das-ul-approval-in-der-praxis\">UL Approval in Practice<\/h2>\n\n<p class=\"wp-block-paragraph\">But why go to all the <strong>trouble of obtaining UL approval<\/strong> in the first place? After all, it isn\u2019t even a government-issued certification mark. To wrap things up, let\u2019s take a look at the reasons for pursuing UL approval and which parts of a system or machine actually need to be UL-certified.  <\/p>\n\n<h3 class=\"wp-block-heading\">What are the benefits of UL approval?<\/h3>\n\n<p class=\"wp-block-paragraph\">UL certification is not required by law to market a product in the United States. For that reason alone, it is misleading to refer to UL\u2019s safety testing as \u201capproval.\u201d <\/p>\n\n<p class=\"wp-block-paragraph\">However, <strong>in practice<\/strong>, it is <strong>often impossible<\/strong> to sell a product to the U.S. that has not undergone UL testing. This applies not only to consumer products but also when a <strong>machine or piece of equipment<\/strong> is to be exported to the U.S. <\/p>\n\n<h3 class=\"wp-block-heading\">Simplified Acceptance Thanks to UL Approval<\/h3>\n\n<p class=\"wp-block-paragraph\"><strong>Local authorities<\/strong> are responsible for the safety of these systems. Their inspectors must approve each system before it is put into operation. This process can be time-consuming and complex. In this context, UL approval can make the <strong>process significantly easier<\/strong>. By looking at the corresponding label, the responsible inspector can immediately see that the system complies with UL standards.    <\/p>\n\n<h3 class=\"wp-block-heading\">Alternative: UL Approval for the control cabinet<\/h3>\n\n<p class=\"wp-block-paragraph\">Since the high regard in which UL approval is held by government officials is widely known in the U.S., many companies specify UL certification in <strong>their requirements specifications<\/strong>. Whether the entire system must be certified or whether a <strong>control cabinet<\/strong> that is \u201cUL approved\u201d is sufficient varies from case to case. The control cabinet typically accounts for the <strong>majority of the total inspection effort<\/strong>, which is why the added value of inspecting the entire system may be questionable.  <\/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\"><strong>&#8220;UL Approval<\/strong> &#8221; is the colloquial term for the certification of a product or component by UL, a private, government-recognized testing laboratory in the United States. Such <strong>approval<\/strong> is virtually indispensable if a product is to be marketed in the United States. <\/p>\n\n<p class=\"wp-block-paragraph\"><\/p><\/p>\n","protected":false},"author":4,"featured_media":12690,"template":"","categories":[163],"tags":[165,169,164],"class_list":["post-12689","wiki","type-wiki","status-publish","has-post-thumbnail","hentry","category-ul-wiki","tag-certification","tag-standard","tag-ul"],"_links":{"self":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/wiki\/12689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/types\/wiki"}],"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\/12690"}],"wp:attachment":[{"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/media?parent=12689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/categories?post=12689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/krayer.de\/en\/wp-json\/wp\/v2\/tags?post=12689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}