{"id":119269,"date":"2026-11-02T11:05:18","date_gmt":"2026-11-02T10:05:18","guid":{"rendered":"https:\/\/www.reerlighting.com\/?page_id=119269"},"modified":"2026-11-02T11:41:49","modified_gmt":"2026-11-02T10:41:49","slug":"insulation-classes","status":"publish","type":"page","link":"https:\/\/www.reerlighting.com\/en\/insulation-classes\/","title":{"rendered":"Insulation Classes"},"content":{"rendered":"\n\n\t<section class=\"section\" id=\"section_2146007588\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1259906847\">\n\n\n\t<div id=\"col-1363758202\" class=\"col small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-1789263679\" class=\"text\">\n\t\t\n\n<h2>Electrical Insulation Classes: Protection against indirect contact<\/h2>\n\t\t\n<style>\n#text-1789263679 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1599216829\">\n\n\n\t<div id=\"col-506452418\" class=\"col pb-0 medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"3\">In addition to protecting the enclosure against water, dust (IP rating), and impacts (IK rating), a lighting fixture must prevent the risk of electric shock to the user\u2014especially in outdoor environments or conditions with high humidity. The <strong>CEI EN 60598-1<\/strong> standard classifies fixtures based on the safety measures implemented for electrical insulation against indirect contact.<\/p>\r\n<p>There are three insulation classes most commonly used in architectural and outdoor lighting, each identified by a specific symbol shown on the label:<\/p>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-585803686\" class=\"col pb-0 medium-6 small-12 large-6\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_353356851\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"574\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-1024x576.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-1024x576.png 1024w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-300x169.png 300w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-768x432.png 768w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-1536x864.png 1536w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento-500x281.png 500w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classi-di-isolamento.png 1672w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_353356851 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_2146007588 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1037564148\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1263425476\">\n\n\n\t<div id=\"col-460112597\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Class I (Basic insulation + Earthing)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-835035096\">\n\n\n\t<div id=\"col-962921079\" class=\"col col-block-effetti medium-8 small-12 large-8\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"6\">In Class I appliances, safety is entrusted to the main insulation and the <b data-path-to-node=\"6\" data-index-in-node=\"85\">mandatory connection to the earthing<\/b> of the electrical system. All accessible metal parts of the appliance, which could become live in the event of a fault, are connected to the earth conductor. If the insulation fails, the current is discharged to the ground, causing the upstream residual current circuit breakers to trip.<\/p>\r\n<ul data-path-to-node=\"7\">\r\n<li>\r\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Symbol:<\/b> A circle with the earth symbol inside (three horizontal lines).<\/p>\r\n<\/li>\r\n<li>\r\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Typical application:<\/b> Standard metal appliances where the installation has a reliable earthing system.<\/p>\r\n<\/li>\r\n<\/ul>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-962921079 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-982623442\" class=\"col col-block-effetti medium-2 small-12 large-2\"  >\n\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1075272986\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"1020\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-1024x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-1024x1024.jpg 1024w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-300x300.jpg 300w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-150x150.jpg 150w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-768x768.jpg 768w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-500x500.jpg 500w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I-100x100.jpg 100w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_I.jpg 1483w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1075272986 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-982623442 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1037564148 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_365662053\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1424314530\">\n\n\n\t<div id=\"col-1428296057\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Class II (Double Insulation)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1863517089\">\n\n\n\t<div id=\"col-761945690\" class=\"col col-block-effetti medium-8 small-12 large-8\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"9\">Class II appliances are designed so that they do not require a ground connection. Safety is ensured by <b data-path-to-node=\"9\" data-index-in-node=\"138\">double insulation<\/b> or <b data-path-to-node=\"9\" data-index-in-node=\"164\">reinforced insulation<\/b> covering the live parts. Even in the event of a failure of the primary insulation, the user remains protected by a second insulating layer.<\/p>\r\n<ul data-path-to-node=\"10\">\r\n<li>\r\n<p data-path-to-node=\"10,0,0\"><b data-path-to-node=\"10,0,0\" data-index-in-node=\"0\">Symbol:<\/b> Two concentric squares (one inside the other).<\/p>\r\n<\/li>\r\n<li>\r\n<p data-path-to-node=\"10,1,0\"><b data-path-to-node=\"10,1,0\" data-index-in-node=\"0\">Typical application:<\/b> Widely used in outdoor, public, and street lighting. The absence of a ground connection eliminates issues related to leakage currents or galvanic corrosion in demanding environments.<\/p>\r\n<\/li>\r\n<\/ul>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-761945690 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1432257663\" class=\"col col-block-effetti medium-2 small-12 large-2\"  >\n\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_176547962\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"1020\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-1024x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-1024x1024.jpg 1024w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-300x300.jpg 300w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-150x150.jpg 150w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-768x768.jpg 768w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-500x500.jpg 500w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II-100x100.jpg 100w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_II.jpg 1458w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_176547962 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1432257663 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_365662053 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1617280704\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1651497166\">\n\n\n\t<div id=\"col-1026647375\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"title1 title-high\">Class III (Safety Extra-Low Voltage &#8211; SELV)<\/h2>\n\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-326448799\">\n\n\n\t<div id=\"col-416095993\" class=\"col col-block-effetti medium-8 small-12 large-8\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p data-path-to-node=\"12\">Class III represents the highest level of protection against electric shock. Safety is ensured by a <b data-path-to-node=\"12\" data-index-in-node=\"133\">Safety Extra-Low Voltage (SELV)<\/b> power supply\u2014less than 50V AC or 120V DC. Since this voltage is considered non-hazardous to the human body, grounding is not required, and additional protective insulation is not mandatory.<\/p>\r\n<ul data-path-to-node=\"13\">\r\n<li>\r\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">Symbol:<\/b> A rhombus containing three vertical stripes.<\/p>\r\n<\/li>\r\n<li>\r\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Typical application:<\/b> Fixtures installed in critical environments such as swimming pools (where regulations mandate the use of SELV with remote power supplies), fountains, small path lights, or ground-recessed lights subject to flooding (often combined with an IP67\/IP68 ingress protection rating).<\/p>\r\n<\/li>\r\n<\/ul>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-416095993 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-254507563\" class=\"col col-block-effetti medium-2 small-12 large-2\"  >\n\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1701524125\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"1020\" src=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-1024x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-1024x1024.jpg 1024w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-300x300.jpg 300w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-150x150.jpg 150w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-768x768.jpg 768w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-500x500.jpg 500w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III-100x100.jpg 100w, https:\/\/www.reerlighting.com\/wp-content\/uploads\/2026\/10\/Classe_III.jpg 1436w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1701524125 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\n<style>\n#col-254507563 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1617280704 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1469115286\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-2110354720\">\n\n\n\t<div id=\"col-1873881262\" class=\"col col-block-effetti small-12 large-12\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<blockquote>\r\n<p data-path-to-node=\"12\"><b data-path-to-node=\"14,0\" data-index-in-node=\"0\">A summary for design:<\/b> IP, IK, and Insulation Class form the technical &#8220;triad&#8221; for the safety of a lighting fixture. Considering these three parameters together (e.g., <i data-path-to-node=\"14,0\" data-index-in-node=\"181\">IP66, IK10, Class II fixture<\/i>) enables designers and installers to select solutions that are not only high-performing in terms of lighting technology, but also structurally safe, durable, and fully compliant with European directives.<\/p>\r\n<\/blockquote>\n\n\t\t<\/div>\n\t\t\n<style>\n#col-1873881262 > .col-inner {\n  padding: 0px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1469115286 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 80px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<div id=\"gap-343734451\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-343734451 {\n  padding-top: 70px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":10706,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-119269","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - 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