{"version":"1.0","provider_name":"KDM\u94a2\u94c1","provider_url":"https:\/\/www.kdmsteel.com\/zh","title":"NEMA 3 vs 3R Enclosure \u2013 Key Differences You Should Know - KDM Steel","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"hkj9I2PL77\"><a href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-3r-\u5916\u58f3-2\/\">NEMA 3 \u4e0e 3R \u5916\u58f3 \u2013 \u60a8\u5e94\u8be5\u77e5\u9053\u7684\u5173\u952e\u533a\u522b<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-3r-\u5916\u58f3-2\/embed\/#?secret=hkj9I2PL77\" width=\"600\" height=\"338\" title=\"\u300a NEMA 3 vs 3R Enclosure \u2013 Key Differences You Should Know \u300b\u2014KDM Steel\" data-secret=\"hkj9I2PL77\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.kdmsteel.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/NEMA-3-vs-3R-Enclosure-\u2013-Key-Differences-You-Should-Know.jpg","thumbnail_width":1280,"thumbnail_height":720,"description":"When it comes to selecting an enclosure for electrical equipment, both NEMA 3 and NEMA 3R enclosure designs are popular. However, it\u2019s essential to know the differences between NEMA enclosures. This guide will help you understand what each NEMA enclosure provides, their features, protection levels, and when you can use which type. By the end, [&hellip;]"}