{"id":5298,"date":"2019-09-23T00:59:46","date_gmt":"2019-09-23T00:59:46","guid":{"rendered":"http:\/\/www.kdmsteel.com\/?p=5298"},"modified":"2026-07-29T00:02:53","modified_gmt":"2026-07-29T00:02:53","slug":"cotes-nema","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/","title":{"rendered":"Classifications NEMA : le guide ultime des questions fr\u00e9quemment pos\u00e9es"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Basculer la table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/#What_is_a_NEMA_Rating\" >Qu&#039;est-ce qu&#039;une classification NEMA ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/#What_is_IEC_60529_for_Electrical_Enclosure\" >Qu&#039;est-ce que la norme IEC 60529 relative aux bo\u00eetiers \u00e9lectriques ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/#Does_NEMA_Rating_Define_Enclosure_Size_Specifications\" >La classification NEMA d\u00e9finit-elle les sp\u00e9cifications de taille du bo\u00eetier\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/#NEMA_Environment_Pre-Selector\" >Pr\u00e9s\u00e9lecteur environnemental NEMA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/fr\/nema-ratings\/#Can_You_Submit_Electrical_Enclosure_to_NEMA_for_Approval\" >Pouvez-vous soumettre un bo\u00eetier \u00e9lectrique \u00e0 la NEMA pour approbation\u00a0?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_NEMA_Rating\"><\/span>Qu&#039;est-ce qu&#039;une classification NEMA ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/www.nema.org\/pages\/default.aspx\">Association nationale des fabricants d&#039;\u00e9quipements \u00e9lectriques<\/a> (NEMA) repr\u00e9sente environ 325 fabricants d&#039;\u00e9quipements \u00e9lectriques visant \u00e0 fabriquer des \u00e9quipements s\u00fbrs, efficaces et fiables.<\/p>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"Nous sommes NEMA\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Hu3GeiMyne4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>En tant qu&#039;association leader des fabricants am\u00e9ricains, la NEMA promeut la normalisation des <a href=\"http:\/\/www.kdmsteel.com\/fr\/boitier-electrique\/\">bo\u00eetiers \u00e9lectriques<\/a>.<\/p>\n<p>Il d\u00e9crit les crit\u00e8res de performance des bo\u00eetiers \u00e9lectriques pour diff\u00e9rentes conditions environnementales.<\/p>\n<p>Par cons\u00e9quent, les bo\u00eetiers \u00e9lectriques sont class\u00e9s de type NEMA 1 \u00e0 type NEMA 13, en fonction des crit\u00e8res de performance dans diff\u00e9rents environnements.<\/p>\n<p>Aujourd&#039;hui, les crit\u00e8res de performance des bo\u00eetiers NEMA servent de ligne directrice \u00e0 d&#039;autres organisations telles que <a href=\"https:\/\/www.ul.com\/\">Laboratoires Underwriters<\/a> (UL), <a href=\"https:\/\/www.scc.ca\/en\/agl-csa\">Association canadienne de normalisation<\/a>(CSA), etc.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_IEC_60529_for_Electrical_Enclosure\"><\/span>Qu&#039;est-ce que la norme IEC 60529 relative aux bo\u00eetiers \u00e9lectriques ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/webstore.iec.ch\/publication\/64427\">Norme IEC 60529<\/a>, \u00e9galement appel\u00e9 <strong><em>Protection contre les intrusions,\u00a0<\/em><\/strong>est d\u00e9fini par 2 chiffres \u2013 <strong><em>IP 56, IP 55, <\/em><\/strong>etc.<\/p>\n<p>Le premier chiffre fait r\u00e9f\u00e9rence au degr\u00e9 de protection contre les objets ou pi\u00e8ces solides, tandis que le deuxi\u00e8me chiffre fait r\u00e9f\u00e9rence au degr\u00e9 de protection contre l&#039;eau.<\/p>\n<p>Bien que la norme IEC 60529 soit principalement associ\u00e9e \u00e0 l\u2019Union europ\u00e9enne, elle a \u00e9t\u00e9 adopt\u00e9e \u00e0 l\u2019\u00e9chelle mondiale.<\/p>\n<p>Avec la classification NEMA et la norme IEC 60529 (indice IP), ces deux normes jouent un r\u00f4le essentiel dans l&#039;\u00e9valuation de la qualit\u00e9 et des performances des bo\u00eetiers \u00e9lectriques dans diff\u00e9rents environnements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Does_NEMA_Rating_Define_Enclosure_Size_Specifications\"><\/span>La classification NEMA d\u00e9finit-elle les sp\u00e9cifications de taille du bo\u00eetier\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Non.<\/p>\n<p>La norme NEMA 250 d\u00e9finit les exigences de performance dans diff\u00e9rents environnements en :<\/p>\n<ul>\n<li>\u00c9noncer les exigences du test<\/li>\n<li>Exigences de construction<\/li>\n<\/ul>\n<p>Cependant, chaque fabricant de bo\u00eetiers NEMA peut avoir ses propres conceptions et tailles de bo\u00eetiers \u00e9lectriques.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5299\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2019\/09\/Figure-1-Electrical-enclosure-sizes.jpg\" alt=\"Dimensions des bo\u00eetiers \u00e9lectriques\" width=\"550\" height=\"550\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2019\/09\/Figure-1-Electrical-enclosure-sizes.jpg 550w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2019\/09\/Figure-1-Electrical-enclosure-sizes-150x150.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2019\/09\/Figure-1-Electrical-enclosure-sizes-66x66.jpg 66w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/p>\n<p style=\"text-align: center;\"><em>Dimensions des bo\u00eetiers \u00e9lectriques<\/em><\/p>\n<section id=\"kdm-nema-selector\" data-kdm-tool=\"nema-selector-v1\">\n<style>\n#kdm-nema-selector{box-sizing:border-box;margin:32px 0;padding:28px;border:1px solid #d8e0e8;border-radius:16px;background:#f7f9fb;color:#243447;font-family:Arial,sans-serif}#kdm-nema-selector *{box-sizing:border-box}#kdm-nema-selector h2{margin:0 0 8px;color:#163a63;font-size:28px}#kdm-nema-selector p{margin:0 0 16px;line-height:1.6}#kdm-nema-selector .kdm-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}#kdm-nema-selector label{display:block;margin-bottom:6px;font-weight:700;font-size:14px}#kdm-nema-selector select{width:100%;padding:10px;border:1px solid #b8c5d1;border-radius:8px}#kdm-nema-selector button{margin-top:16px;padding:11px 20px;border:0;border-radius:8px;background:#0b5fa5;color:#fff;font-weight:700}#kdm-nema-selector .kdm-result{display:none;margin-top:16px;padding:15px;border-left:4px solid #0b5fa5;border-radius:9px;background:#eaf4fb}#kdm-nema-selector .kdm-note{margin-top:14px;font-size:13px;color:#526474}@media(max-width:680px){#kdm-nema-selector .kdm-fields{grid-template-columns:1fr}}\n<\/style>\n<h2><span class=\"ez-toc-section\" id=\"NEMA_Environment_Pre-Selector\"><\/span>Pr\u00e9s\u00e9lecteur environnemental NEMA<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Identifier une famille de types de bo\u00eetiers NEMA \u00e0 discuter avec le fournisseur en fonction de l&#039;exposition environnementale.<\/p>\n<div class=\"kdm-fields\">\n<div><label for=\"kdm-ne-location\">Emplacement<\/label><select id=\"kdm-ne-location\"><option value=\"indoor\">Int\u00e9rieur<\/option><option value=\"outdoor\">De plein air<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-water\">Eau<\/label><select id=\"kdm-ne-water\"><option value=\"none\">Pas d&#039;eau dirig\u00e9e<\/option><option value=\"rain\">Pluie \/ gr\u00e9sil<\/option><option value=\"hose\">Eau dirig\u00e9e par tuyau<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-dust\">Poussi\u00e8re<\/label><select id=\"kdm-ne-dust\"><option value=\"low\">Faible<\/option><option value=\"dust\">Poussi\u00e8re en circulation<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-corrosion\">Corrosion<\/label><select id=\"kdm-ne-corrosion\"><option value=\"normal\">Normale<\/option><option value=\"corrosive\">Environnement corrosif<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-ice\">Glace ext\u00e9rieure<\/label><select id=\"kdm-ne-ice\"><option value=\"no\">Inattendu<\/option><option value=\"yes\">Possible<\/option><\/select><\/div>\n<\/div>\n<p><button id=\"kdm-ne-btn\" type=\"button\">Examiner la famille de types NEMA<\/button><\/p>\n<div id=\"kdm-ne-result\" class=\"kdm-result\" aria-live=\"polite\"><\/div>\n<p class=\"kdm-note\"><strong>S\u00e9lection de r\u00e9f\u00e9rences uniquement\u00a0:<\/strong> Les normes NEMA tiennent compte des exigences en mati\u00e8re de construction et d&#039;environnement. Cet outil ne certifie pas un produit et ne fournit pas de conversion IP exacte.<\/p>\n<p><script>\n(function(){var r=document.getElementById(\"kdm-nema-selector\");if(!r)return;r.querySelector(\"#kdm-ne-btn\").addEventListener(\"click\",function(){var loc=r.querySelector(\"#kdm-ne-location\").value,water=r.querySelector(\"#kdm-ne-water\").value,dust=r.querySelector(\"#kdm-ne-dust\").value,cor=r.querySelector(\"#kdm-ne-corrosion\").value,ice=r.querySelector(\"#kdm-ne-ice\").value,type=\"Type 1 candidate\";if(loc===\"indoor\"&&dust===\"dust\")type=\"Type 12 candidate\";if(loc===\"outdoor\"&&water===\"rain\")type=\"Type 3R candidate\";if(water===\"hose\")type=\"Type 4 candidate\";if(cor===\"corrosive\")type=\"Type 4X candidate\";var extra=ice===\"yes\"?\" Confirm external-icing requirements and operating temperature.\":\"\";var o=r.querySelector(\"#kdm-ne-result\");o.innerHTML=\"<strong>\"+type+\" for specification review<\/strong><br \/>Confirm the complete NEMA 250 application definition, finished-enclosure test evidence, material, gasket, cable entries and mounting.\"+extra;o.style.display=\"block\"})}());\n<\/script><br \/>\n<\/section>\n<h2><span class=\"ez-toc-section\" id=\"Can_You_Submit_Electrical_Enclosure_to_NEMA_for_Approval\"><\/span>Pouvez-vous soumettre un bo\u00eetier \u00e9lectrique \u00e0 la NEMA pour approbation\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Non, les normes sont volontaires.<\/p>\n<p>Par cons\u00e9quent, la NEMA ne teste ni ne certifie les bo\u00eetiers \u00e9lectriques.<\/p>\n<p>I<\/p>","protected":false},"excerpt":{"rendered":"<p>What is a NEMA Rating? National Electrical Manufacturers Association (NEMA) represents about 325 electrical equipment manufacturers aiming to make safe, efficient, and reliable equipment. As a leading association of U.S. manufacturers, NEMA promotes standardization of electrical enclosures. It outlines the performance criteria of electrical enclosures for different environmental conditions. Consequently, electrical enclosures are classified as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5298","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NEMA Ratings: The Ultimate FAQ Guide - KDM Steel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kdmsteel.com\/fr\/cotes-nema\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NEMA Ratings: The Ultimate FAQ Guide - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"What is a NEMA Rating? 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