{"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":"classificacoes-nema","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/pt\/nema-ratings\/","title":{"rendered":"Classifica\u00e7\u00f5es NEMA: O guia de perguntas frequentes definitivo"},"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\">\u00cdndice<\/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=\"Alternar \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/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\/pt\/nema-ratings\/#What_is_a_NEMA_Rating\" >O que \u00e9 uma classifica\u00e7\u00e3o 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\/pt\/nema-ratings\/#What_is_IEC_60529_for_Electrical_Enclosure\" >O que \u00e9 a norma IEC 60529 para gabinete el\u00e9trico?<\/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\/pt\/nema-ratings\/#Does_NEMA_Rating_Define_Enclosure_Size_Specifications\" >A classifica\u00e7\u00e3o NEMA define as especifica\u00e7\u00f5es de tamanho do gabinete?<\/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\/pt\/nema-ratings\/#NEMA_Environment_Pre-Selector\" >Pr\u00e9-seletor ambiental 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\/pt\/nema-ratings\/#Can_You_Submit_Electrical_Enclosure_to_NEMA_for_Approval\" >Voc\u00ea pode enviar um gabinete el\u00e9trico para aprova\u00e7\u00e3o da NEMA?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_NEMA_Rating\"><\/span>O que \u00e9 uma classifica\u00e7\u00e3o NEMA?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/www.nema.org\/pages\/default.aspx\">Associa\u00e7\u00e3o Nacional de Fabricantes de Eletricidade<\/a> (NEMA) representa cerca de 325 fabricantes de equipamentos el\u00e9tricos que visam fabricar equipamentos seguros, eficientes e confi\u00e1veis.<\/p>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"N\u00f3s somos 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>Como uma associa\u00e7\u00e3o l\u00edder de fabricantes dos EUA, a NEMA promove a padroniza\u00e7\u00e3o de <a href=\"http:\/\/www.kdmsteel.com\/pt\/gabinete-eletrico\/\">gabinetes el\u00e9tricos<\/a>.<\/p>\n<p>Ele descreve os crit\u00e9rios de desempenho de gabinetes el\u00e9tricos para diferentes condi\u00e7\u00f5es ambientais.<\/p>\n<p>Consequentemente, os gabinetes el\u00e9tricos s\u00e3o classificados como NEMA tipo 1 a NEMA tipo 13, dependendo dos crit\u00e9rios de desempenho em diferentes ambientes.<\/p>\n<p>Hoje, os crit\u00e9rios de desempenho do gabinete NEMA funcionam como uma diretriz para outras organiza\u00e7\u00f5es, como <a href=\"https:\/\/www.ul.com\/\">Laborat\u00f3rios Underwriters<\/a> (UL), <a href=\"https:\/\/www.scc.ca\/en\/agl-csa\">Associa\u00e7\u00e3o Canadense de Normas<\/a>(CSA), etc.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_IEC_60529_for_Electrical_Enclosure\"><\/span>O que \u00e9 a norma IEC 60529 para gabinete el\u00e9trico?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/webstore.iec.ch\/publication\/64427\">Norma IEC 60529<\/a>, tamb\u00e9m chamado <strong><em>Prote\u00e7\u00e3o de entrada,\u00a0<\/em><\/strong>\u00e9 definido por 2 d\u00edgitos \u2013 <strong><em>IP56, IP55, <\/em><\/strong>etc.<\/p>\n<p>O primeiro d\u00edgito se refere ao grau de prote\u00e7\u00e3o contra objetos ou pe\u00e7as s\u00f3lidas, enquanto o segundo d\u00edgito se refere ao grau de prote\u00e7\u00e3o contra \u00e1gua.<\/p>\n<p>Embora a norma IEC 60529 tenha sido associada principalmente \u00e0 Uni\u00e3o Europeia, ela foi adotada globalmente.<\/p>\n<p>Juntamente com a classifica\u00e7\u00e3o NEMA e a norma IEC 60529 (classifica\u00e7\u00e3o IP), as duas desempenham um papel fundamental na avalia\u00e7\u00e3o da qualidade e do desempenho de gabinetes el\u00e9tricos em diferentes ambientes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Does_NEMA_Rating_Define_Enclosure_Size_Specifications\"><\/span>A classifica\u00e7\u00e3o NEMA define as especifica\u00e7\u00f5es de tamanho do gabinete?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u00e3o.<\/p>\n<p>O padr\u00e3o NEMA 250 define requisitos de desempenho em diferentes ambientes por:<\/p>\n<ul>\n<li>Declarando os requisitos do teste<\/li>\n<li>Requisitos de constru\u00e7\u00e3o<\/li>\n<\/ul>\n<p>No entanto, cada fabricante de gabinetes NEMA pode ter seus pr\u00f3prios projetos e tamanhos de gabinetes el\u00e9tricos.<\/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=\"Tamanhos de gabinetes el\u00e9tricos\" 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>Tamanhos de gabinetes el\u00e9tricos<\/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\u00e9-seletor ambiental NEMA<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Identifique uma fam\u00edlia de tipos de inv\u00f3lucro NEMA para discutir com o fornecedor, com base na exposi\u00e7\u00e3o ambiental.<\/p>\n<div class=\"kdm-fields\">\n<div><label for=\"kdm-ne-location\">Localiza\u00e7\u00e3o<\/label><select id=\"kdm-ne-location\"><option value=\"indoor\">Interior<\/option><option value=\"outdoor\">Ar livre<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-water\">\u00c1gua<\/label><select id=\"kdm-ne-water\"><option value=\"none\">\u00c1gua n\u00e3o direcionada<\/option><option value=\"rain\">Chuva \/ granizo<\/option><option value=\"hose\">\u00c1gua direcionada por mangueira<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-dust\">P\u00f3<\/label><select id=\"kdm-ne-dust\"><option value=\"low\">Baixo<\/option><option value=\"dust\">Poeira circulante<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-corrosion\">Corros\u00e3o<\/label><select id=\"kdm-ne-corrosion\"><option value=\"normal\">Normal<\/option><option value=\"corrosive\">Ambiente corrosivo<\/option><\/select><\/div>\n<div><label for=\"kdm-ne-ice\">Gelo externo<\/label><select id=\"kdm-ne-ice\"><option value=\"no\">N\u00e3o era esperado<\/option><option value=\"yes\">Poss\u00edvel<\/option><\/select><\/div>\n<\/div>\n<p><button id=\"kdm-ne-btn\" type=\"button\">An\u00e1lise da fam\u00edlia de tipos NEMA<\/button><\/p>\n<div id=\"kdm-ne-result\" class=\"kdm-result\" aria-live=\"polite\"><\/div>\n<p class=\"kdm-note\"><strong>Sele\u00e7\u00e3o apenas para refer\u00eancia:<\/strong> As classifica\u00e7\u00f5es NEMA incluem requisitos de constru\u00e7\u00e3o e ambientais. Esta ferramenta n\u00e3o certifica um produto nem fornece uma convers\u00e3o exata de IP.<\/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>Voc\u00ea pode enviar um gabinete el\u00e9trico para aprova\u00e7\u00e3o da NEMA?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u00e3o, os padr\u00f5es s\u00e3o volunt\u00e1rios.<\/p>\n<p>Portanto, a NEMA n\u00e3o testa nem certifica gabinetes el\u00e9tricos.<\/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\/pt\/classificacoes-nema\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\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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