{"id":46312,"date":"2025-03-07T02:30:10","date_gmt":"2025-03-07T02:30:10","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=46312"},"modified":"2026-07-17T07:40:45","modified_gmt":"2026-07-17T07:40:45","slug":"nema-3-vs-nema-4","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/","title":{"rendered":"\u4e86\u89e3 NEMA 3 \u4e0e NEMA 4 \u5916\u58f3\u4e4b\u95f4\u7684\u5dee\u5f02"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u5fc5\u987b\u6ce8\u610f\u7684\u662f\uff0c\u5728\u9009\u62e9\u65f6\uff0c\u786e\u4fdd\u514d\u53d7\u73af\u5883\u56e0\u7d20\u7684\u5f71\u54cd\u975e\u5e38\u91cd\u8981<\/span><a href=\"https:\/\/kdmfab.com\/electrical-enclosure\/\"> <span style=\"font-weight: 400;\">\u7535\u6c14\u5916\u58f3<\/span><\/a><span style=\"font-weight: 400;\">\u5c24\u5176\u9002\u7528\u4e8e\u6237\u5916\u6216\u5de5\u4e1a\u8bbe\u5907\u3002NEMA 3 \u548c NEMA 4 \u5916\u58f3\u786e\u5b9e\u4e0d\u9519\uff0c\u4f46\u4e3a\u4e86\u627e\u5230\u7b26\u5408\u60a8\u9700\u6c42\u7684\u6b63\u786e\u4ea7\u54c1\uff0c\u60a8\u5e94\u8be5\u4e86\u89e3\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u3002\u672c\u6307\u5357\u5c06\u5e26\u60a8\u4e86\u89e3\u6bcf\u4e2a\u6807\u51c6\u7684\u542b\u4e49\uff0c\u4ece\u800c\u5e2e\u52a9\u60a8\u6839\u636e\u5e94\u7528\u9009\u62e9\u5408\u9002\u7684\u5916\u58f3\u3002<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\u5f55<\/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=\"\u5207\u6362\u76ee\u5f55\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u5207\u6362<\/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\/zh\/nema-3-\u4e0e-nema-4\/#What_is_NEMA_3_IP54\" >\u4ec0\u4e48\u662f NEMA 3 (IP54)\uff1f<\/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\/zh\/nema-3-\u4e0e-nema-4\/#What_is_NEMA_4_IP66\" >\u4ec0\u4e48\u662fNEMA 4\uff1f\uff08IP66\uff09<\/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\/zh\/nema-3-\u4e0e-nema-4\/#Key_Differences_Between_NEMA_IP54_and_NEMA_IP66\" >NEMA IP54 \u548c NEMA IP66 \u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Protection_against_Weather_Elements\" >\u25cf \u9632\u98ce\u96e8\u63aa\u65bd\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Material_and_Construction\" >\u25cf \u6750\u6599\u548c\u7ed3\u6784\uff1a<\/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\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Environmental_Suitability\" >\u25cf \u73af\u5883\u9002\u5e94\u6027\uff1a<\/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\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Cost_Considerations\" >\u25cf \u6210\u672c\u8003\u8651\uff1a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Applications_of_NEMA_3_Enclosures\" >NEMA 3 \u5916\u58f3\u7684\u5e94\u7528<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Outdoor_Environments\" >\u25cf \u5ba4\u5916\u73af\u5883\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Industrial_and_Telecommunication_Equipment\" >\u25cf \u5de5\u4e1a\u548c\u7535\u4fe1\u8bbe\u5907\uff1a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Applications_of_NEMA_4_Enclosures\" >NEMA 4 \u5916\u58f3\u7684\u5e94\u7528<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Harsh_Industrial_Settings\" >\u25cf \u6076\u52a3\u7684\u5de5\u4e1a\u73af\u5883\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Regular_Cleaning_and_Protection\" >\u25cf \u5b9a\u671f\u6e05\u6d01\u548c\u4fdd\u62a4\uff1a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Choosing_Between_NEMA_3_and_NEMA_4_Enclosures\" >\u5728 NEMA 3 \u548c NEMA 4 \u5916\u58f3\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Evaluating_Your_Environmental_Needs\" >\u25cf \u8bc4\u4f30\u60a8\u7684\u73af\u5883\u9700\u6c42\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Protection_Requirements\" >\u25cf \u9632\u62a4\u8981\u6c42\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#%E2%97%8F_Cost_vs_Protection\" >\u25cf \u6210\u672c\u4e0e\u4fdd\u62a4\uff1a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Get_High_Quality_NEMA_3_and_NEMA_4_Enclosures_from_KDM\" >\u4ece KDM \u83b7\u53d6\u9ad8\u54c1\u8d28 NEMA 3 \u548c NEMA 4 \u5916\u58f3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Conclusion\" >\u7ed3\u8bba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Frequently_Asked_Questions\" >\u5e38\u89c1\u95ee\u9898<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Can_IP54_enclosures_be_used_in_wet_environments\" >IP54 \u5916\u58f3\u53ef\u4ee5\u5728\u6f6e\u6e7f\u73af\u5883\u4e2d\u4f7f\u7528\u5417\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#Is_NEMA_4_more_suitable_for_harsh_industrial_settings\" >NEMA 4 \u662f\u5426\u66f4\u9002\u5408\u6076\u52a3\u7684\u5de5\u4e1a\u73af\u5883\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#What_are_the_typical_materials_used_in_IP54_and_IP66_enclosures\" >IP54 \u548c IP66 \u5916\u58f3\u901a\u5e38\u4f7f\u7528\u54ea\u4e9b\u6750\u6599\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/zh\/nema-3-\u4e0e-nema-4\/#What_industries_typically_use_NEMA_4_enclosures\" >\u54ea\u4e9b\u884c\u4e1a\u901a\u5e38\u4f7f\u7528 NEMA 4 \u5916\u58f3\uff1f<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_NEMA_3_IP54\"><\/span><b>\u4ec0\u4e48\u662f NEMA 3 (IP54)\uff1f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46317\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-3-IP54.jpg\" alt=\"\u4ec0\u4e48\u662fNEMA 3\uff08IP54\uff09\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-3-IP54.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-3-IP54-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-3-IP54-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-3-IP54-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">These enclosures serve <a href=\"https:\/\/www.kdmsteel.com\/zh\/\u6237\u5916\u7535\u6c14\u5916\u58f3\/\">\u6237\u5916\u5e94\u7528<\/a> to safeguard enclosed equipment from rain falls along with snow and sleet during average weather periods. Ideal for moderate industrial or telecommunication applications.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_NEMA_4_IP66\"><\/span><b>\u4ec0\u4e48\u662fNEMA 4\uff1f\uff08IP66\uff09<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46318\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-4-IP66.jpg\" alt=\"\u4ec0\u4e48\u662fNEMA 4\uff08IP66\uff09\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-4-IP66.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-4-IP66-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-4-IP66-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/What-is-NEMA-4-IP66-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.kdmsteel.com\/zh\/ip66-\u5916\u58f3\/\">IP66<\/a> enclosures will offer better protection than NEMA 3. The enclosure will protect equipment from falling rain, sleet, snow, splashing water, and hose-directed water. Rugged and reliable, these enclosures are ideally suited for harsh applications typically encountered on industrial sites.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Key_Differences_Between_NEMA_IP54_and_NEMA_IP66\"><\/span><b>NEMA IP54 \u548c NEMA IP66 \u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46319\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-IP54-and-NEMA-IP66.jpg\" alt=\"NEMA IP54 \u548c NEMA IP66 \u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-IP54-and-NEMA-IP66.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-IP54-and-NEMA-IP66-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-IP54-and-NEMA-IP66-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Key-Differences-Between-NEMA-IP54-and-NEMA-IP66-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Protection_against_Weather_Elements\"><\/span><b>\u25cf<\/b> <b>\u9632\u98ce\u96e8\u63aa\u65bd\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The rain and snow along with sleet gives devices protection under <a href=\"https:\/\/www.kdmsteel.com\/zh\/ip54-\u5916\u58f3\/\">IP54<\/a> classification but NEMA IP66 provides complete waterproof protection through hose spraying and exposure to snow and sleet. NEMA IP66 enclosures offer maximum defense against rain, snow, sleet weather conditions as well as direct spraying of water.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Material_and_Construction\"><\/span><b>\u25cf<\/b> <b>\u6750\u6599\u548c\u7ed3\u6784\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3 \u5916\u58f3\u901a\u5e38\u7531<\/span><a href=\"https:\/\/kdmfab.com\/stainless-steel-fabrication\/\"> <span style=\"font-weight: 400;\">\u4e0d\u9508\u94a2<\/span><\/a><span style=\"font-weight: 400;\"> \u6216\u8005<\/span><a href=\"https:\/\/kdmfab.com\/aluminum-fabrication\/\"> <span style=\"font-weight: 400;\">\u94dd<\/span><\/a><span style=\"font-weight: 400;\"> \u63d0\u4f9b\u8db3\u591f\u7684\u9632\u62a4\uff0c\u4ee5\u62b5\u5fa1\u5404\u79cd\u73af\u5883\u56e0\u7d20\u3002\u53e6\u4e00\u65b9\u9762\uff0cNEMA 4 \u5916\u58f3\u91c7\u7528\u4e0d\u9508\u94a2\u7b49\u6750\u6599\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u6750\u6599\u53ef\u4ee5\u5e94\u5bf9\u66f4\u6076\u52a3\u7684\u73af\u5883\u3002\u5b83\u4eec\u4e0d\u8150\u8680\uff0c\u5e76\u4e14\u8bbe\u8ba1\u7528\u4e8e\u6297\u51b2\u51fb\u6216\u8010\u78e8\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Environmental_Suitability\"><\/span><b>\u25cf<\/b> <b>\u73af\u5883\u9002\u7528\u6027\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5982\u679c\u60a8\u7684\u8bbe\u5907\u5b89\u88c5\u7684\u5ba4\u5916\u6761\u4ef6\u4e00\u822c\uff0c\u5e76\u4e14\u53ea\u6709\u5076\u5c14\u7684\u7070\u5c18\u548c\u6e7f\u6c14\uff0c\u90a3\u4e48 NEMA 3 \u5916\u58f3\u5c31\u8db3\u591f\u4e86\u3002\u56e0\u6b64\uff0c\u5728\u4e25\u82db\u7684\u5de5\u4e1a\u73af\u5883\u4e2d\uff0c\u6709\u5fc5\u8981\u8003\u8651\u4f7f\u7528 NEMA 4 \u5916\u58f3\uff0c\u8fd9\u79cd\u5916\u58f3\u53ef\u4ee5\u5728\u673a\u5668\u66b4\u9732\u4e8e\u5316\u5b66\u54c1\u6216\u9891\u7e41\u51b2\u6d17\u7684\u60c5\u51b5\u4e0b\u63d0\u4f9b\u5fc5\u8981\u7684\u4fdd\u62a4\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Cost_Considerations\"><\/span><b>\u25cf<\/b> <b>\u6210\u672c\u8003\u8651\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5728\u6e29\u548c\u73af\u5883\u4e0b\uff0cNEMA 3 \u5916\u58f3\u6210\u672c\u4f4e\u5ec9\uff0c\u4e14\u80fd\u63d0\u4f9b\u826f\u597d\u7684\u9632\u62a4\u3002\u53e6\u4e00\u65b9\u9762\uff0cNEMA 4 \u5916\u58f3\u7684\u6210\u672c\u4e0d\u65ad\u4e0a\u6da8\uff0c\u5176\u989d\u5916\u6210\u672c\u6e90\u4e8e\u5176\u575a\u56fa\u8010\u7528\u7684\u7279\u6027\uff0c\u8fd9\u4e9b\u7279\u6027\u786e\u5b9e\u80fd\u786e\u4fdd\u6700\u4f73\u9632\u62a4\u3002\u867d\u7136 NEMA 4 \u4ef7\u683c\u7565\u9ad8\uff0c\u4f46\u5728\u6076\u52a3\u73af\u5883\u4e0b\uff0c\u5c24\u5176\u662f\u9700\u8981\u989d\u5916\u9632\u62a4\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u4ecd\u7136\u662f\u4e00\u9879\u975e\u5e38\u4e0d\u9519\u7684\u6295\u8d44\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_NEMA_3_Enclosures\"><\/span><b>NEMA 3 \u5916\u58f3\u7684\u5e94\u7528<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46320\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-3-Enclosures.jpg\" alt=\"NEMA 3 \u5916\u58f3\u7684\u5e94\u7528\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-3-Enclosures.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-3-Enclosures-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-3-Enclosures-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-3-Enclosures-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Outdoor_Environments\"><\/span><b>\u25cf <\/b><b>\u6237\u5916\u73af\u5883\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3 \u5916\u58f3\u7684\u6700\u4f73\u5e94\u7528\u9886\u57df\u662f\u6237\u5916\u7535\u6c14\u8bbe\u5907\u7684\u5b89\u88c5\u3002\u5e38\u89c1\u7684\u5e94\u7528\u5305\u62ec\u516c\u7528\u7535\u8868\u3001<\/span><a href=\"https:\/\/www.sciencedirect.com\/topics\/computer-science\/traffic-control-system\"> <span style=\"font-weight: 400;\">\u4ea4\u901a\u63a7\u5236\u7cfb\u7edf<\/span><\/a><span style=\"font-weight: 400;\">\u4ee5\u53ca\u7535\u4fe1\u8bbe\u5907\u3002\u5b83\u4eec\u53ef\u4ee5\u9632\u6b62\u843d\u5c18\u3001\u96e8\u6c34\u548c\u96e8\u5939\u96ea\u8fdb\u5165\u5916\u58f3\uff0c\u8fd9\u4e9b\u843d\u5c18\u3001\u96e8\u6c34\u548c\u96e8\u5939\u96ea\u4e0d\u5e94\u4ee5\u4efb\u4f55\u6709\u5bb3\u7684\u91cf\u6d41\u5165\u5916\u58f3\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Industrial_and_Telecommunication_Equipment\"><\/span><b>\u25cf<\/b> <b>\u5de5\u4e1a\u548c\u7535\u4fe1\u8bbe\u5907\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5982\u679c\u60a8\u5728\u5de5\u4e1a\u6216\u7535\u4fe1\u73af\u5883\u4e2d\u5de5\u4f5c\uff0c\u8bbe\u5907\u66b4\u9732\u5728\u591a\u5c18\u6f6e\u6e7f\u7684\u73af\u5883\u4e2d\uff0c\u4f46\u4e0d\u76f4\u63a5\u63a5\u89e6\u6c34\uff0c\u90a3\u4e48 NEMA 3 \u5916\u58f3\u5c06\u662f\u6700\u4f73\u9009\u62e9\u3002\u8be5\u9762\u677f\u65e8\u5728\u9632\u6b62\u4e2d\u7b49\u7a0b\u5ea6\u7684\u73af\u5883\u66b4\u9732\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_NEMA_4_Enclosures\"><\/span><b>NEMA 4 \u5916\u58f3\u7684\u5e94\u7528<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46321\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-4-Enclosures.jpg\" alt=\"NEMA 4 \u5916\u58f3\u7684\u5e94\u7528\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-4-Enclosures.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-4-Enclosures-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-4-Enclosures-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Applications-of-NEMA-4-Enclosures-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Harsh_Industrial_Settings\"><\/span><b>\u25cf<\/b> <b>\u6076\u52a3\u7684\u5de5\u4e1a\u73af\u5883\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">IP66 \u5916\u58f3\u5e94\u7528\u53ef\u6709\u6548\u5e94\u5bf9\u6781\u7aef\u5de5\u4e1a\u73af\u5883\u3002IP66 \u5916\u58f3\u5728\u6d89\u53ca\u5b9a\u671f\u6e05\u6d01\u7a0b\u5e8f\u3001\u6c34\u6d41\u7ba1\u7406\u6216\u5316\u5b66\u54c1\u4f7f\u7528\u7684\u64cd\u4f5c\u4e2d\uff0c\u5177\u6709\u5f3a\u5927\u7684\u9632\u62a4\u80fd\u529b\u3002\u8fd9\u7c7b\u4ea7\u54c1\u5728\u5236\u9020\u4e1a\u3001\u98df\u54c1\u52a0\u5de5\u6216\u5316\u5de5\u5382\u4e2d\u975e\u5e38\u5e38\u89c1\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Regular_Cleaning_and_Protection\"><\/span><b>\u25cf<\/b> <b>\u5b9a\u671f\u6e05\u6d01\u548c\u4fdd\u62a4\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 4 \u5916\u58f3\u9002\u7528\u4e8e\u9700\u8981\u5b9a\u671f\u55b7\u6c34\u6e05\u6d01\u7684\u8bbe\u5907\u3002\u5982\u679c\u8bbe\u5907\u9700\u8981\u6bcf\u5929\u591a\u6b21\u51b2\u6d17\uff0c\u4f8b\u5982\u5728\u98df\u54c1\u548c\u996e\u6599\u5904\u7406\u5382\u6216\u536b\u751f\u6807\u51c6\u4e25\u683c\u7684\u73af\u5883\u4e2d\uff0cNEMA 4 \u5916\u58f3\u53ef\u80fd\u662f\u7406\u60f3\u7684\u9009\u62e9\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Choosing_Between_NEMA_3_and_NEMA_4_Enclosures\"><\/span><b>\u5728 NEMA 3 \u548c NEMA 4 \u5916\u58f3\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46322\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Choosing-Between-NEMA-3-and-NEMA-4-Enclosures.jpg\" alt=\"\u5728 NEMA 3 \u548c NEMA 4 \u5916\u58f3\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Choosing-Between-NEMA-3-and-NEMA-4-Enclosures.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Choosing-Between-NEMA-3-and-NEMA-4-Enclosures-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Choosing-Between-NEMA-3-and-NEMA-4-Enclosures-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Choosing-Between-NEMA-3-and-NEMA-4-Enclosures-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Evaluating_Your_Environmental_Needs\"><\/span><b>\u25cf<\/b> <b>\u8bc4\u4f30\u60a8\u7684\u73af\u5883\u9700\u6c42\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5728 IP54 \u548c IP66 \u5916\u58f3\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9\u65f6\uff0c\u5173\u952e\u6b65\u9aa4\u662f\u786e\u5b9a\u6240\u9700\u7684\u73af\u5883\u6761\u4ef6\u3002IP54 \u5916\u58f3\u7b49\u7ea7\u53ef\u5728\u8f7b\u5fae\u5929\u6c14\u6761\u4ef6\u4e0b\uff08\u4f8b\u5982\u4e0b\u96e8\u6216\u8f7b\u5fae\u7070\u5c18\uff09\u63d0\u4f9b\u5fc5\u8981\u7684\u9632\u62a4\u3002IP66 \u5916\u58f3\u5219\u53ef\u5728\u9891\u7e41\u51b2\u6d17\u3001\u66b4\u96e8\u548c\u6c34\u7ba1\u55b7\u6c34\u7b49\u6076\u52a3\u6761\u4ef6\u4e0b\u63d0\u4f9b\u5353\u8d8a\u7684\u9632\u62a4\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Protection_Requirements\"><\/span><b>\u25cf<\/b> <b>\u4fdd\u62a4\u8981\u6c42\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u68c0\u67e5\u60a8\u7684\u9632\u62a4\u63aa\u65bd\u8981\u6c42\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cNEMA 3 \u53ef\u4ee5\u9632\u96e8\u9632\u5c18\uff1b\u7136\u800c\uff0c\u5728\u7ecf\u5e38\u76f4\u63a5\u63a5\u89e6\u6c34\u7684\u5730\u65b9\uff0c\u8fd9\u53ef\u80fd\u4e0d\u591f\u3002\u56e0\u6b64\uff0cNEMA 4 \u7684\u8bbe\u8ba1\u53ef\u4ee5\u5e94\u5bf9\u66f4\u4e25\u82db\u7684\u6761\u4ef6\uff0c\u4f8b\u5982\u55b7\u6c34\u548c\u7269\u7406\u51b2\u51fb\uff0c\u56e0\u6b64\u9002\u7528\u4e8e\u8981\u6c42\u66f4\u9ad8\u7684\u5de5\u4e1a\u5e94\u7528\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%97%8F_Cost_vs_Protection\"><\/span><b>\u25cf<\/b> <b>\u6210\u672c\u4e0e\u4fdd\u62a4\uff1a<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u8003\u8651\u4e00\u4e0b\u6210\u672c\u548c\u9632\u62a4\u4e4b\u95f4\u7684\u6743\u8861\u3002NEMA 3 \u7684\u6210\u672c\u8f83\u4f4e\uff0c\u800c\u5982\u679c\u8bbe\u5907\u9700\u8981\u66f4\u9ad8\u7ea7\u522b\u7684\u9632\u62a4\uff0cNEMA 4 \u5219\u975e\u5e38\u91cd\u8981\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5b83\u5c31\u80fd\u786e\u4fdd\u8bbe\u5907\u5728\u672a\u6765\u5f88\u957f\u4e00\u6bb5\u65f6\u95f4\u5185\u7684\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Get_High_Quality_NEMA_3_and_NEMA_4_Enclosures_from_KDM\"><\/span><b>\u4ece KDM \u83b7\u53d6\u9ad8\u54c1\u8d28 NEMA 3 \u548c NEMA 4 \u5916\u58f3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46323\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Get-High-Quality-NEMA-3-and-NEMA-4-Enclosures-from-KDM.jpg\" alt=\"\u4ece KDM \u83b7\u53d6\u9ad8\u54c1\u8d28 NEMA 3 \u548c NEMA 4 \u5916\u58f3\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Get-High-Quality-NEMA-3-and-NEMA-4-Enclosures-from-KDM.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Get-High-Quality-NEMA-3-and-NEMA-4-Enclosures-from-KDM-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Get-High-Quality-NEMA-3-and-NEMA-4-Enclosures-from-KDM-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Get-High-Quality-NEMA-3-and-NEMA-4-Enclosures-from-KDM-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><a href=\"https:\/\/kdmfab.com\/\"><span style=\"font-weight: 400;\">KDM\u94a2\u94c1<\/span><\/a><span style=\"font-weight: 400;\"> \u6211\u4eec\u63d0\u4f9b\u4e00\u7cfb\u5217 NEMA 3 \u548c NEMA 4 \u5916\u58f3\uff0c\u8bbe\u8ba1\u7cbe\u826f\uff0c\u80fd\u591f\u4e3a\u7535\u6c14\u8bbe\u5907\u63d0\u4f9b\u975e\u5e38\u53ef\u9760\u7684\u4fdd\u62a4\u3002\u60a8\u53ef\u4ee5\u4ece\u6700\u7b26\u5408\u60a8\u9700\u6c42\u7684\u7cfb\u5217\u4e2d\u8fdb\u884c\u9009\u62e9\uff0c\u5e76\u786e\u5b9a\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>\u7ed3\u8bba<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46325\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-5.jpg\" alt=\"\u7ed3\u8bba\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-5.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-5-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-5-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Conclusion-5-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u4e00\u65e6\u60a8\u4e86\u89e3\u4e86 NEMA 3 \u548c NEMA 4 \u4e24\u79cd\u673a\u67dc\u7c7b\u578b\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u60a8\u5c31\u80fd\u81ea\u4fe1\u5730\u9009\u62e9\u6700\u4f73\u7684\u8bbe\u5907\u4fdd\u62a4\u65b9\u5f0f\u3002\u65e0\u8bba\u662f\u9488\u5bf9\u6e29\u548c\u5929\u6c14\u7684\u57fa\u672c\u9632\u62a4\uff0c\u8fd8\u662f\u5728\u6076\u52a3\u73af\u5883\u4e0b\u7684\u989d\u5916\u5b89\u5168\u9632\u62a4\uff0cKDM Steel \u90fd\u80fd\u4ee5\u53ef\u9760\u7684\u65b9\u5f0f\u6ee1\u8db3\u60a8\u5404\u79cd\u673a\u67dc\u9700\u6c42\uff0c\u63d0\u4f9b\u6301\u4e45\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span><b>\u5e38\u89c1\u95ee\u9898<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46324\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Frequently-Asked-Questions.jpg\" alt=\"\u5e38\u89c1\u95ee\u9898\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Frequently-Asked-Questions.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Frequently-Asked-Questions-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Frequently-Asked-Questions-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Frequently-Asked-Questions-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_IP54_enclosures_be_used_in_wet_environments\"><\/span><b>IP54 \u5916\u58f3\u53ef\u4ee5\u5728\u6f6e\u6e7f\u73af\u5883\u4e2d\u4f7f\u7528\u5417\uff1f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u5de5\u4e1a IP54 \u5916\u58f3\u63d0\u4f9b\u6237\u5916\u4fdd\u62a4\uff0c\u4f7f\u60a8\u7684\u8bbe\u5907\u80fd\u591f\u62b5\u5fa1\u96e8\u96ea\u548c<\/span><a href=\"https:\/\/www.merriam-webster.com\/dictionary\/sleet\"> <span style=\"font-weight: 400;\">\u9730<\/span><\/a><span style=\"font-weight: 400;\">IP54 \u5916\u58f3\u53ef\u9632\u6f6e\uff0c\u4f46\u4e0d\u80fd\u957f\u671f\u6d78\u6c34\u3002\u9009\u62e9 IP66 \u5916\u58f3\u53ef\u4fdd\u62a4\u8bbe\u5907\u514d\u53d7\u6c34\u6d78\uff0c\u56e0\u4e3a IP54 \u5916\u58f3\u7684\u9632\u6c34\u9632\u6f6e\u6027\u80fd\u6709\u9650\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_NEMA_4_more_suitable_for_harsh_industrial_settings\"><\/span><b>NEMA 4 \u662f\u5426\u66f4\u9002\u5408\u6076\u52a3\u7684\u5de5\u4e1a\u73af\u5883\uff1f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u662f\u7684\uff0cNEMA 4 \u5916\u58f3\u57fa\u672c\u4e0a\u662f\u4e3a\u6076\u52a3\u7684\u5de5\u4e1a\u73af\u5883\u8bbe\u8ba1\u7684\u3002\u5176\u9632\u62a4\u4e0d\u4ec5\u9650\u4e8e\u5929\u6c14\u56e0\u7d20\uff0c\u8fd8\u80fd\u591f\u62b5\u5fa1\u55b7\u6c34\u3001\u8f6f\u7ba1\u55b7\u6c34\uff0c\u751a\u81f3<\/span><a href=\"https:\/\/www.ecoonline.com\/glossary\/chemical-exposure\/\"> <span style=\"font-weight: 400;\">\u5316\u5b66\u7269\u8d28\u66b4\u9732\u3002<\/span><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_are_the_typical_materials_used_in_IP54_and_IP66_enclosures\"><\/span><b>IP54 \u548c IP66 \u5916\u58f3\u901a\u5e38\u4f7f\u7528\u54ea\u4e9b\u6750\u6599\uff1f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">NEMA 3 \u5916\u58f3\u901a\u5e38\u7531\u94a2\u6216\u94dd\u5236\u6210\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u4e2d\u7b49\u73af\u5883\u6761\u4ef6\u3002\u53e6\u4e00\u65b9\u9762\uff0cNEMA 4 \u5916\u58f3\u91c7\u7528\u66f4\u575a\u56fa\u7684\u6750\u6599\uff0c\u4f8b\u5982\u4e0d\u9508\u94a2\uff0c\u53ef\u4ee5\u627f\u53d7\u66f4\u5927\u7684\u5316\u5b66\u548c\u6c34\u51b2\u51fb\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_industries_typically_use_NEMA_4_enclosures\"><\/span><b>\u54ea\u4e9b\u884c\u4e1a\u901a\u5e38\u4f7f\u7528 NEMA 4 \u5916\u58f3\uff1f<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u8fd9\u4e9b\u5916\u58f3\u901a\u5e38\u7528\u4e8e\u5236\u9020\u4e1a\u3001\u98df\u54c1\u52a0\u5de5\u3001\u5236\u836f\u3001\u5316\u5b66\u52a0\u5de5\u548c\u5e9f\u6c34\u5904\u7406\u5382\u3002\u8fd9\u4e9b\u884c\u4e1a\u9700\u8981\u9632\u6c34\u3001\u9632\u5c18\u548c\u6301\u7eed\u51b2\u6d17\u7684\u8bbe\u5907\uff1b\u56e0\u6b64\uff0cNEMA 4 \u5916\u58f3\u662f\u7406\u60f3\u7684\u9009\u62e9\u3002<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>One has to note that ensuring protection from environmental factors is very crucial when selecting the electric enclosures, especially for outdoor or industrial equipment. Indeed, NEMA 3 and NEMA 4 enclosures have been good picks, but to get the right one for your needs, you should know the difference. This guide takes you through what [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":46316,"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-46312","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 v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Understanding the Differences Between NEMA 3 vs NEMA 4 Enclosures - 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\/zh\/nema-3-\u4e0e-nema-4\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding the Differences Between NEMA 3 vs NEMA 4 Enclosures - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"One has to note that ensuring protection from environmental factors is very crucial when selecting the electric enclosures, especially for outdoor or industrial equipment. 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Indeed, NEMA 3 and NEMA 4 enclosures have been good picks, but to get the right one for your needs, you should know the difference. 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