{"id":46623,"date":"2025-03-17T07:11:47","date_gmt":"2025-03-17T07:11:47","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=46623"},"modified":"2025-03-17T12:53:38","modified_gmt":"2025-03-17T12:53:38","slug":"nema-3-vs-3r-enclosure","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/","title":{"rendered":"NEMA 3 \u3068 3R \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3 \u2013 \u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u4e3b\u306a\u9055\u3044"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u96fb\u6c17\u6a5f\u5668\u7528\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u9078\u3076\u969b\u306b\u306f\u3001NEMA 3\u3068NEMA 3R\u306e\u4e21\u65b9\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u8a2d\u8a08\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u3057\u304b\u3057\u3001NEMA\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306f\u3001\u5404NEMA\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6a5f\u80fd\u3001\u7279\u5fb4\u3001\u4fdd\u8b77\u30ec\u30d9\u30eb\u3001\u305d\u3057\u3066\u3069\u306e\u30bf\u30a4\u30d7\u3092\u3044\u3064\u4f7f\u7528\u3067\u304d\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30ac\u30a4\u30c9\u3092\u8aad\u307f\u7d42\u3048\u308b\u9803\u306b\u306f\u3001\u3069\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u304c\u304a\u5ba2\u69d8\u306e\u30cb\u30fc\u30ba\u306b\u6700\u9069\u3067\u3042\u308b\u304b\u304c\u5206\u304b\u308b\u3067\u3057\u3087\u3046\u3002<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 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\">\u76ee\u6b21<\/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=\"\u76ee\u6b21\u3092\u5207\u308a\u66ff\u3048\u308b\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u30c8\u30b0\u30eb<\/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\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Understanding_NEMA_3_Enclosures_and_NEMA_3R_Enclosures\" >NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3068NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306b\u3064\u3044\u3066<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#NEMA_3_Enclosures\" >NEMA 3 \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#NEMA_3R_Enclosures\" >NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/a><\/li><\/ul><\/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\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Key_Differences_Between_NEMA_3_And_NEMA_3R\" >NEMA 3\u3068NEMA 3R\u306e\u4e3b\u306a\u9055\u3044<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Protection_Level\" >\u4fdd\u8b77\u30ec\u30d9\u30eb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Construction_and_Durability\" >\u69cb\u9020\u3068\u8010\u4e45\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Cost_and_Maintenance\" >\u30b3\u30b9\u30c8\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Compliance_and_Standards\" >\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3068\u6a19\u6e96<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Applications_and_Use_Cases\" >\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#NEMA_3_Enclosures-2\" >NEMA 3 \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#NEMA_3R_Enclosures-2\" >NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Environmental_Considerations\" >\u74b0\u5883\u3078\u306e\u914d\u616e<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Weather_Conditions\" >\u6c17\u8c61\u6761\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Dust_and_Debris\" >\u307b\u3053\u308a\u3068\u30b4\u30df<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Temperature_and_Humidity\" >\u6e29\u5ea6\u3068\u6e7f\u5ea6<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Conclusion\" >\u7d50\u8ad6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#FAQs\" >\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/#Are_NEMA_3R_enclosures_suitable_for_use_under_severe_weather_conditions\" >NEMA 3R \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u53b3\u3057\u3044\u6c17\u8c61\u6761\u4ef6\u4e0b\u3067\u306e\u4f7f\u7528\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304b?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Understanding_NEMA_3_Enclosures_and_NEMA_3R_Enclosures\"><\/span><b>NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3068NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306b\u3064\u3044\u3066<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46628\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Understanding-NEMA-3-Enclosures-and-NEMA-3R-Enclosures.jpg\" alt=\"NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3068NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306b\u3064\u3044\u3066\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Understanding-NEMA-3-Enclosures-and-NEMA-3R-Enclosures.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Understanding-NEMA-3-Enclosures-and-NEMA-3R-Enclosures-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Understanding-NEMA-3-Enclosures-and-NEMA-3R-Enclosures-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Understanding-NEMA-3-Enclosures-and-NEMA-3R-Enclosures-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"NEMA_3_Enclosures\"><\/span><b>NEMA 3 \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u96fb\u6c17\u6a5f\u5668\u3092\u904e\u9177\u306a\u74b0\u5883\u8981\u56e0\u304b\u3089\u4fdd\u8b77\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u307b\u3053\u308a\u3060\u3051\u3067\u306a\u304f\u3001\u96e8\u3084\u843d\u4e0b\u3059\u308b\u571f\u57c3\u304b\u3089\u3082\u4fdd\u8b77\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306b\u307b\u3053\u308a\u306e\u7c92\u5b50\u304c\u4fb5\u5165\u3059\u308b\u3068\u3044\u3046\u6700\u60aa\u306e\u4e8b\u614b\u3092\u56de\u907f\u3059\u308b\u306e\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u6c37\u7d50\u306b\u3082\u5f37\u3044\u305f\u3081\u3001\u5bd2\u51b7\u5730\u3092\u542b\u3080\u5c4b\u5916\u3067\u306e\u4f7f\u7528\u306b\u3082\u6700\u9069\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"NEMA_3R_Enclosures\"><\/span><b>NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u3053\u308c\u3089\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u5c4b\u5916\u3067\u306e\u4f7f\u7528\u3092\u76ee\u7684\u3068\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u96e8\u3001\u5f37\u98a8\u3001\u307f\u305e\u308c\u306a\u3069\u3078\u306e\u8010\u6027\u306f\u9650\u5b9a\u7684\u3067\u3059\u3002\u98a8\u3067\u821e\u3044\u4e0a\u304c\u308b\u57c3\u306e\u554f\u984c\u3082NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u304c\u89e3\u6c7a\u3067\u304d\u308b\u554f\u984c\u3067\u3059\u304c\u3001NEMA 3\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u308c\u3089\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u9632\u5875\u69cb\u9020\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u5fae\u7d30\u306a\u57c3\u306e\u7c92\u5b50\u304c\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306b\u4fb5\u5165\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Key_Differences_Between_NEMA_3_And_NEMA_3R\"><\/span><b>NEMA 3\u3068NEMA 3R\u306e\u4e3b\u306a\u9055\u3044<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46629\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-3-And-NEMA-3R.jpg\" alt=\"NEMA 3\u3068NEMA 3R\u306e\u4e3b\u306a\u9055\u3044\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-3-And-NEMA-3R.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-3-And-NEMA-3R-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-3-And-NEMA-3R-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-3-And-NEMA-3R-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u3067\u306f\u306a\u304fNEMA 3\u3092\u9078\u3076\u304b\u3069\u3046\u304b\u306f\u3001\u5b8c\u5168\u306b\u3042\u306a\u305f\u306e\u30cb\u30fc\u30ba\u6b21\u7b2c\u3067\u3059\u3002\u8010\u74b0\u5883\u6027\u3001\u30b3\u30b9\u30c8\u3001\u6750\u8cea\u3001\u4fdd\u8b77\u30ec\u30d9\u30eb\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u305d\u306e\u9055\u3044\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Protection_Level\"><\/span><b>\u4fdd\u8b77\u30ec\u30d9\u30eb<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3068\u6bd4\u8f03\u3057\u3066\u3001NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3088\u308a\u9ad8\u3044\u30ec\u30d9\u30eb\u306e\u4fdd\u8b77\u6027\u80fd\u3092\u5099\u3048\u3001\u5b8c\u5168\u306a\u9632\u5875\u6027\u3082\u5099\u3048\u3066\u3044\u308b\u305f\u3081\u3001\u5efa\u8a2d\u73fe\u5834\u3084\u5de5\u5834\u306a\u3069\u306b\u6700\u9069\u3067\u3059\u3002NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u96e8\u3084\u6c37\u306b\u3082\u8010\u3048\u3089\u308c\u307e\u3059\u304c\u3001\u3088\u308a\u7a4f\u3084\u304b\u306a\u6761\u4ef6\u4e0b\u3067\u3088\u308a\u52b9\u679c\u7684\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Construction_and_Durability\"><\/span><b>\u69cb\u9020\u3068\u8010\u4e45\u6027<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3084 <\/span><a href=\"https:\/\/www.kdmsteel.com\/ja\/\u4e9c\u925b\u30e1\u30c3\u30ad\u92fc\u7bb1\/\"><span style=\"font-weight: 400;\">\u4e9c\u925b\u30e1\u30c3\u30ad\u92fc\u3002<\/span><\/a><span style=\"font-weight: 400;\"> \u3053\u308c\u3089\u306e\u7d20\u6750\u306f\u975e\u5e38\u306b\u5f37\u5ea6\u304c\u9ad8\u304f\u3001\u8010\u8150\u98df\u6027\u306b\u3082\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u7b50\u4f53\u306b\u306f\u958b\u9589\u53ef\u80fd\u306a\u6249\u304c\u4ed8\u3044\u3066\u304a\u308a\u3001\u9632\u5875\u30fb\u9632\u6c34\u52a0\u5de5\u304c\u65bd\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7b50\u4f53\u306b\u3088\u3063\u3066\u306f\u3001\u6e29\u5ea6\u8abf\u7bc0\u7528\u306e\u901a\u6c17\u53e3\u304c\u4ed8\u3044\u3066\u3044\u308b\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u3088\u308a\u8efd\u91cf\u306a\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u307e\u305f\u306f\u8edf\u92fc\u3067\u4f5c\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u5f37\u5ea6\u306f\u3084\u3084\u52a3\u308a\u307e\u3059\u304c\u3001\u4fa1\u683c\u3082\u5b89\u4fa1\u3067\u3059\u3002NEMA 3\u306e\u3088\u3046\u306a\u9ad8\u5ea6\u306a\u30b7\u30fc\u30eb\u3084\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u3001\u904e\u9177\u306a\u74b0\u5883\u3067\u306e\u4f7f\u7528\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cost_and_Maintenance\"><\/span><b>\u30b3\u30b9\u30c8\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u9ad8\u54c1\u8cea\u306e\u6750\u6599\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4fa1\u683c\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5fc5\u8981\u6027\u304c\u5c11\u306a\u304f\u3001\u904e\u9177\u306a\u74b0\u5883\u306b\u8a2d\u7f6e\u3057\u3066\u3082\u9577\u5bff\u547d\u3067\u3042\u308b\u305f\u3081\u3001\u901a\u5e38\u306f\u4fa1\u683c\u306b\u898b\u5408\u3046\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u77f3\u6cb9\u30fb\u30ac\u30b9\u7523\u696d\u306a\u3069\u3001\u6a5f\u5668\u306e\u6a5f\u80fd\u6027\u304c\u91cd\u8981\u306a\u7523\u696d\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u4f4e\u4fa1\u683c\u3067\u3042\u308b\u305f\u3081\u3001\u4e88\u7b97\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u9069\u3057\u305f\u9078\u629e\u80a2\u3068\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u8a2d\u8a08\u304c\u30b7\u30f3\u30d7\u30eb\u306a\u305f\u3081\u3001\u57c3\u3063\u307d\u3044\u74b0\u5883\u3084\u6e7f\u6c17\u306e\u591a\u3044\u74b0\u5883\u3067\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u6e29\u6696\u306a\u6c17\u5019\u3067\u3042\u308c\u3070\u3001NEMA 3R\u306f\u8cbb\u7528\u5bfe\u52b9\u679c\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Compliance_and_Standards\"><\/span><b>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3068\u6a19\u6e96<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u9632\u5875\u30fb\u9632\u6ef4\u306b\u95a2\u3059\u308b\u53b3\u683c\u306aNEMA\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001UL\u898f\u683c\uff08\u5371\u967a\u5834\u6240\u5411\u3051\uff09\u306a\u3069\u306e\u8ffd\u52a0\u8a8d\u8a3c\u3082\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u53ef\u71c3\u6027\u84b8\u6c17\u307e\u305f\u306f\u30ac\u30b9\u304c\u5b58\u5728\u3059\u308b\u5834\u6240\u3067\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u307f\u305e\u308c\u4fdd\u8b77\u306b\u95a2\u3059\u308bNEMA\u57fa\u672c\u898f\u683c\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u5371\u967a\u533a\u57df\u306e\u8a8d\u8a3c\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u975e\u5371\u967a\u533a\u57df\u3067\u306e\u307f\u3054\u4f7f\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_and_Use_Cases\"><\/span><b>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46630\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-and-Use-Cases.jpg\" alt=\"\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-and-Use-Cases.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-and-Use-Cases-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-and-Use-Cases-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-and-Use-Cases-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3 \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3068 NEMA 3R \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u9055\u3044\u306f\u3001\u305d\u306e\u7528\u9014\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"NEMA_3_Enclosures-2\"><\/span><b>NEMA 3 \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u88fd\u9020\u5de5\u5834: \u5236\u5fa1\u30d1\u30cd\u30eb\u3092\u307b\u3053\u308a\u3001\u6e7f\u6c17\u3001\u904e\u9177\u306a\u7269\u7406\u7684\u6d3b\u52d5\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5316\u5b66\u51e6\u7406\u65bd\u8a2d: \u5f37\u529b\u306a\u5316\u5b66\u7269\u8cea\u3084\u84b8\u6c17\u304b\u3089\u96fb\u6c17\u6a5f\u5668\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u77f3\u6cb9\u7cbe\u88fd\u6240\u304a\u3088\u3073\u30ac\u30b9\u30d7\u30e9\u30f3\u30c8: \u307b\u3053\u308a\u3001\u904e\u9177\u306a\u5929\u5019\u3001\u53ef\u71c3\u6027\u30ac\u30b9\u3001\u304a\u3088\u3073\u304b\u306a\u308a\u306e\u6e7f\u5ea6\u306b\u3055\u3089\u3055\u308c\u308b\u91cd\u8981\u306a\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5ec3\u6c34\u51e6\u7406\u30d7\u30e9\u30f3\u30c8: \u6c34\u3001\u6e7f\u6c17\u3001\u8150\u98df\u6027\u30ac\u30b9\u304b\u3089\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u98df\u54c1\u52a0\u5de5\u65bd\u8a2d: \u885b\u751f\u6d17\u6d44\u7528\u5316\u5b66\u85ac\u54c1\u3084\u98df\u54c1\u7c92\u5b50\u304b\u3089\u6a5f\u5668\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5efa\u8a2d\u73fe\u5834: \u4e00\u6642\u7684\u306a\u96fb\u6c17\u5de5\u4e8b\u3092\u96e8\u3001\u307b\u3053\u308a\u3001\u7269\u7406\u7684\u640d\u50b7\u306e\u5f71\u97ff\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u63a1\u6398\u4f5c\u696d: \u6e7f\u6c17\u3084\u307b\u3053\u308a\u306e\u591a\u3044\u904e\u9177\u306a\u74b0\u5883\u304b\u3089\u96fb\u6c17\u6a5f\u5668\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u8fb2\u696d\u65bd\u8a2d: \u7d0d\u5c4b\u3001\u6e29\u5ba4\u3001\u52a0\u5de5\u30e6\u30cb\u30c3\u30c8\u5185\u306e\u6a5f\u5668\u3092\u6e7f\u6c17\u3001\u5316\u5b66\u7269\u8cea\u3001\u307b\u3053\u308a\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5bd2\u51b7\u5730\u8a2d\u7f6e: \u7a4d\u96ea\u307e\u305f\u306f\u51cd\u7d50\u304c\u6fc0\u3057\u3044\u5730\u57df\u3067\u3082\u9069\u5207\u306a\u6a5f\u80fd\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u6d17\u8eca\u30b5\u30fc\u30d3\u30b9: \u81ea\u52d5\u6d17\u8eca\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u5316\u5b66\u85ac\u54c1\u3084\u6c34\u6f0f\u308c\u306b\u8010\u3048\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u6d77\u6d0b\u5730\u57df\uff1a\u6d77\u6c34\u3084\u6e7f\u6c17\u306b\u3088\u308b\u6a5f\u5668\u306e\u640d\u50b7\u3092\u9632\u304e\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4f4f\u5b85\u8a2d\u5099\u306e\u8a2d\u7f6e: \u96e8\u6c34\u3001\u307b\u3053\u308a\u3001\u98a8\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u3044\u5909\u5727\u5668\u3001\u914d\u96fb\u88c5\u7f6e\u3001\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u56f2\u307f\u307e\u3059\u3002<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"NEMA_3R_Enclosures-2\"><\/span><b>NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4fee\u5fa9\u3055\u308c\u305f\u5c4b\u5916\u96fb\u6c17\u30d1\u30cd\u30eb: \u6e29\u6696\u306a\u6c17\u5019\u306e\u5bb6\u5ead\u306e\u96fb\u6c17\u7cfb\u7d71\u3092\u96e8\u3084\u307f\u305e\u308c\u304b\u3089\u5b88\u308a\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30c4\u30fc\u30eb \u30e1\u30fc\u30bf\u30fc: \u8efd\u3044\u4f4f\u5b85\u5730\u3084\u5546\u696d\u5730\u306e\u30e1\u30fc\u30bf\u30fc\u3092\u5929\u5019\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u7167\u660e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb: \u5ead\u5712\u3084\u99d0\u8eca\u5834\u306e\u7167\u660e\u30bf\u30a4\u30de\u30fc\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HVAC \u30b7\u30b9\u30c6\u30e0\u5236\u5fa1: \u4f4f\u5b85\u30a8\u30ea\u30a2\u306e\u6696\u623f\u304a\u3088\u3073\u51b7\u623f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3078\u306e\u96e8\u3084\u6e7f\u6c17\u306b\u3088\u308b\u640d\u50b7\u3092\u9632\u304e\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4e2d\u5c0f\u4f01\u696d: \u5c0f\u58f2\u5e97\u3001\u30aa\u30d5\u30a3\u30b9\u3001\u30ab\u30d5\u30a7\u306e\u96fb\u6c17\u30d1\u30cd\u30eb\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5c0f\u58f2\u5e97: \u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u3068\u3068\u3082\u306b\u3001\u5c4b\u5916\u306e\u770b\u677f\u5236\u5fa1\u3092\u5c0f\u96e8\u3084\u307b\u3053\u308a\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb: \u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u767a\u96fb\u6a5f\u307e\u305f\u306f\u516c\u5171\u306e\u96fb\u529b\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4e2d\u7a0b\u5ea6\u306e\u6c17\u5019\u306e\u8a2d\u7f6e: \u6975\u7aef\u306b\u6c17\u6e29\u304c\u9ad8\u304f\u306a\u304f\u3001\u5c0f\u96e8\u304c\u964d\u308b\u5730\u57df\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u7d4c\u6e08\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8: \u975e\u5e38\u306b\u4f4e\u4e88\u7b97\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3084\u4e00\u6642\u7684\u306a\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u3082\u3001\u624b\u9803\u306a\u4fa1\u683c\u3067\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u77ed\u671f\u8a2d\u7f6e: \u77ed\u671f\u9593\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u5fc5\u8981\u306a\u5c4b\u5916\u30d5\u30a7\u30b9\u30c6\u30a3\u30d0\u30eb\u3084\u305d\u306e\u4ed6\u306e\u30a4\u30d9\u30f3\u30c8\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5c4b\u5916\u7167\u660e: \u8857\u8def\u3001\u99d0\u8eca\u5834\u3001\u901a\u8def\u306e\u7167\u660e\u306f\u3059\u3079\u3066\u96e8\u3084\u307f\u305e\u308c\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4f4f\u5b85\u7528 HVAC \u30e6\u30cb\u30c3\u30c8: \u5c4b\u5916\u306e\u30a8\u30a2\u30b3\u30f3 \u30e6\u30cb\u30c3\u30c8\u306f\u7a4f\u3084\u304b\u306a\u5929\u5019\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Environmental_Considerations\"><\/span><b>\u74b0\u5883\u3078\u306e\u914d\u616e<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46634\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Environmental-Considerations.jpg\" alt=\"\u74b0\u5883\u3078\u306e\u914d\u616e\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Environmental-Considerations.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Environmental-Considerations-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Environmental-Considerations-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Environmental-Considerations-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3\u304a\u3088\u3073NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u9078\u5b9a\u3092\u3054\u691c\u8a0e\u3044\u305f\u3060\u304f\u969b\u306b\u306f\u3001\u74b0\u5883\u306b\u5fdc\u3058\u3066\u3053\u308c\u3089\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u7406\u7531\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u70b9\u306b\u3054\u7559\u610f\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Weather_Conditions\"><\/span><b>\u6c17\u8c61\u6761\u4ef6<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u6a5f\u5668\u304c\u6fc0\u3057\u3044\u96e8\u3001\u96ea\u3001\u6c37\u306b\u3055\u3089\u3055\u308c\u308b\u5834\u5408\u306f\u3001NEMA 3 \u3092\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u7b50\u4f53\u306f\u5bc6\u9589\u6027\u306b\u512a\u308c\u3066\u304a\u308a\u3001\u904e\u9177\u306a\u6c17\u8c61\u6761\u4ef6\u306b\u3082\u3088\u308a\u9069\u3057\u3066\u3044\u307e\u3059\u3002NEMA 3R \u306f\u5c0f\u96e8\u3084\u307f\u305e\u308c\u306a\u3069\u3067\u3082\u52d5\u4f5c\u3057\u307e\u3059\u304c\u3001\u3088\u308a\u904e\u9177\u306a\u74b0\u5883\u306b\u306f\u8010\u3048\u3089\u308c\u307e\u305b\u3093\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dust_and_Debris\"><\/span><b>\u307b\u3053\u308a\u3068\u30b4\u30df<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5efa\u8a2d\u73fe\u5834\u3084\u5de5\u5834\u306a\u3069\u3001\u4f5c\u696d\u30a8\u30ea\u30a2\u304c\u57c3\u3063\u307d\u3044\u5834\u5408\u306f\u3001\u9632\u5875\u6027\u306b\u512a\u308c\u305fNEMA 3\u898f\u683c\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002NEMA 3R\u306f\u57c3\u306e\u5c11\u306a\u3044\u74b0\u5883\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Temperature_and_Humidity\"><\/span><b>\u6e29\u5ea6\u3068\u6e7f\u5ea6<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u3069\u3061\u3089\u306e\u7b50\u4f53\u3082\u6e29\u5ea6\u5909\u5316\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u304c\u3001\u6975\u7aef\u306a\u5834\u5408\u306b\u306fNEMA 3\u306e\u65b9\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u6e7f\u5ea6\u304c\u5909\u5316\u3059\u308b\u5834\u6240\u3084\u6e7f\u5ea6\u306e\u9ad8\u3044\u5834\u6240\u3067\u306f\u3001\u6a5f\u5668\u306e\u4fdd\u8b77\u6027\u80fd\u304c\u9ad8\u3044NEMA 3\u306e\u65b9\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002NEMA 3R\u306f\u3001\u6761\u4ef6\u304c\u305d\u308c\u307b\u3069\u53b3\u3057\u304f\u306a\u3044\u6e29\u6696\u306a\u6c17\u5019\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>\u7d50\u8ad6<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46631\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-4-4.jpg\" alt=\"\u7d50\u8ad6\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-4-4.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-4-4-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-4-4-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-4-4-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">NEMA 3\u3068NEMA 3R\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306f\u3001\u72b6\u6cc1\u3068\u7528\u9014\u3092\u8a55\u4fa1\u3059\u308b\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u975e\u5e38\u306b\u904e\u9177\u306a\u74b0\u5883\u3067\u904b\u7528\u3059\u308b\u5834\u5408\u306f\u3001NEMA 3\u304c\u6700\u9069\u3067\u3059\u3002\u4e00\u65b9\u3001\u6bd4\u8f03\u7684\u7a4f\u3084\u304b\u306a\u74b0\u5883\u3067\u306fNEMA 3R\u304c\u9069\u3057\u3066\u304a\u308a\u3001\u6700\u3082\u8cbb\u7528\u5bfe\u52b9\u679c\u304c\u9ad8\u3044\u3067\u3059\u3002\u6a5f\u5668\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3053\u3068\u304c\u3001\u6700\u7d42\u7684\u306a\u6c7a\u5b9a\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>\u3088\u304f\u3042\u308b\u8cea\u554f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46632\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/FAQs-3-2.jpg\" alt=\"\u3088\u304f\u3042\u308b\u8cea\u554f\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/FAQs-3-2.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/FAQs-3-2-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/FAQs-3-2-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/FAQs-3-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_NEMA_3R_enclosures_suitable_for_use_under_severe_weather_conditions\"><\/span><b>NEMA 3R \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u53b3\u3057\u3044\u6c17\u8c61\u6761\u4ef6\u4e0b\u3067\u306e\u4f7f\u7528\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304b?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3R\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u96e8\u3084\u307f\u305e\u308c\u306b\u306f\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u304c\u3001\u53b3\u3057\u3044\u5929\u5019\u306b\u306f\u8010\u3048\u3089\u308c\u307e\u305b\u3093\u3002\u57c3\u3001\u6c34\u3001\u6c37\u304c\u5927\u91cf\u306b\u84c4\u7a4d\u3059\u308b\u5834\u6240\u3067\u306f\u3001NEMA 3\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>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;]<\/p>\n","protected":false},"author":1,"featured_media":46627,"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":"disabled","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-46623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NEMA 3 vs 3R Enclosure \u2013 Key Differences You Should Know - 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\/ja\/nema-3-\u3068-3r-\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6bd4\u8f03\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NEMA 3 vs 3R Enclosure \u2013 Key Differences You Should Know - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"When it comes to selecting an enclosure for electrical equipment, both NEMA 3 and NEMA 3R enclosure designs are popular. 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