{"id":3256,"date":"2026-04-27T07:07:03","date_gmt":"2026-04-27T07:07:03","guid":{"rendered":"https:\/\/niunielec.com\/?post_type=product&#038;p=3256"},"modified":"2026-04-27T07:10:42","modified_gmt":"2026-04-27T07:10:42","slug":"nu-fh-12-1250-25-gas-insulated-load-switch","status":"publish","type":"product","link":"https:\/\/niunielec.com\/pt\/product\/nu-fh-12-1250-25-gas-insulated-load-switch\/","title":{"rendered":"NU-FH-12-1250-25 Interruptor de corte de carga para quadro de distribui\u00e7\u00e3o isolado a g\u00e1s de 12 kV"},"content":{"rendered":"<h2 id=\"h2-1\"><span style=\"font-size: 75%;\"><strong>Interruptor de carga NU-FH-12-1250-25 de alta capacidade para sistemas de comuta\u00e7\u00e3o isolados a g\u00e1s<\/strong><\/span><\/h2>\n<h3><strong><span style=\"font-size: 75%;\">Descri\u00e7\u00e3o do produto<\/span><\/strong><\/h3>\n<p>O interruptor de carga NU-FH-12-1250-25 \u00e9 uma solu\u00e7\u00e3o de comuta\u00e7\u00e3o robusta e vers\u00e1til, concebida especificamente para quadros de distribui\u00e7\u00e3o isolados a g\u00e1s (GIS) de 12 kV\/1250 A e unidades de anel de alta tens\u00e3o. Concebido para uma instala\u00e7\u00e3o f\u00e1cil e estabilidade mec\u00e2nica a longo prazo, este interruptor de corte de carga (LBS) gere de forma eficiente as necessidades de distribui\u00e7\u00e3o de energia em ambientes industriais e de servi\u00e7os p\u00fablicos de alta exig\u00eancia. Cumpre integralmente as normas de seguran\u00e7a internacionais e nacionais, incluindo a GB 3804-2017 e a GB 16926-2009, tornando-o um componente essencial para unidades combinadas de interruptor de carga e fus\u00edvel de alta tens\u00e3o CA.<\/p>\n<h3><strong><span style=\"font-size: 75%;\">Aplica\u00e7\u00f5es<\/span><\/strong><\/h3>\n<ul>\n<li>Interruptor principal de controlo e prote\u00e7\u00e3o para quadros el\u00e9tricos isolados a g\u00e1s de 12 kV e subesta\u00e7\u00f5es modulares.<\/li>\n<li>Componente essencial para unidades combinadas de disjuntor-fus\u00edvel em redes de distribui\u00e7\u00e3o secund\u00e1rias.<\/li>\n<li>Controlo de energia fi\u00e1vel para redes urbanas, centrais de energia renov\u00e1vel e instala\u00e7\u00f5es industriais de grande escala.<\/li>\n<\/ul>\n<h3><strong><span style=\"font-size: 75%;\">Condi\u00e7\u00f5es ambientais<\/span><\/strong><\/h3>\n<ul>\n<li>Altitude n\u00e3o superior a 2000 m; intensidade s\u00edsmica n\u00e3o superior a 8 graus;<\/li>\n<li>N\u00edvel de polui\u00e7\u00e3o: II;<\/li>\n<li>Intervalo de temperatura ambiente: -40 \u00b0C a +40 \u00b0C; humidade relativa: m\u00e9dia di\u00e1ria n\u00e3o superior a 90 %; m\u00e9dia mensal n\u00e3o superior a 90 %;<\/li>\n<li>N\u00e3o \u00e9 adequado para instala\u00e7\u00e3o em locais sujeitos a vibra\u00e7\u00f5es intensas e frequentes, ou onde o vapor de \u00e1gua, gases, dep\u00f3sitos quimicamente corrosivos, n\u00e9voa salina, poeira ou sujidade afetem significativamente o desempenho do mecanismo, ou onde exista risco de inc\u00eandio ou explos\u00e3o.<\/li>\n<\/ul>\n<h3><strong><span style=\"font-size: 75%;\">Par\u00e2metros t\u00e9cnicos<\/span><\/strong><\/h3>\n<table style=\"border-collapse: collapse; width: 355.52pt;\" border=\"0\" width=\"711\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et3\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">N\u00e3o.<\/td>\n<td class=\"et3\" style=\"width: 204.50pt;\" width=\"409\">Item<\/td>\n<td class=\"et3\" style=\"width: 36.00pt;\" width=\"72\">Unidade<\/td>\n<td class=\"et3\" style=\"width: 89.00pt;\" width=\"178\">Valor<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">1<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Tens\u00e3o nominal<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">kV<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">12<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">2<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Corrente nominal<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">A<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">1250<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">3<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Corrente de resist\u00eancia nominal de curta dura\u00e7\u00e3o<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">kA\/S<\/td>\n<td class=\"et5\" style=\"width: 89.00pt;\" width=\"178\">25\/3<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">4<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Corrente suport\u00e1vel de pico nominal<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">kA<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">50\/63<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">5<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Corrente nominal de fecho de curto-circuito<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">kA<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">50\/63<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">6<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Frequ\u00eancia nominal<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">HZ<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">50<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 26.00pt;\" width=\"52\" height=\"40\">7<\/td>\n<td class=\"et4\" style=\"width: 204.50pt;\" width=\"409\">Funcionamento te\u00f3rico<\/td>\n<td class=\"et4\" style=\"width: 36.00pt;\" width=\"72\">hora<\/td>\n<td class=\"et4\" style=\"width: 89.00pt;\" width=\"178\">5000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"font-size: 75%;\"><strong>Desenho<\/strong><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3260\" src=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-648x768.webp\" alt=\"nu fh 12 1250 25 interruptor de corte de carga para quadro de distribui\u00e7\u00e3o isolado a g\u00e1s de 12 kV\" width=\"648\" height=\"768\" srcset=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-648x768.webp 648w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-864x1024.webp 864w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-371x440.webp 371w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-768x910.webp 768w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing-600x711.webp 600w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-fh-12-1250-25-lbs-mechanical-layout-drawing.webp 940w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<h3><strong><span style=\"font-size: 75%;\">Perguntas frequentes sobre seccionadores de carga isolados a g\u00e1s<\/span><\/strong><\/h3>\n<ul>\n<li>P: Por que raz\u00e3o a classifica\u00e7\u00e3o de 1250 A \u00e9 importante para este interruptor de carga GIS?<\/li>\n<\/ul>\n<p>R: A classifica\u00e7\u00e3o de 1250 A garante que o interruptor consegue suportar cargas de pot\u00eancia mais elevadas sem sobreaquecimento, proporcionando uma margem de seguran\u00e7a significativa para aplica\u00e7\u00f5es em circuitos principais num quadro de distribui\u00e7\u00e3o isolado a g\u00e1s.<\/p>\n<ul>\n<li>P: Este mecanismo consegue resistir a condi\u00e7\u00f5es ambientais adversas?<\/li>\n<\/ul>\n<p>R: Sim. O dispositivo foi testado para garantir um desempenho est\u00e1vel em temperaturas entre -40 \u00b0C e +40 \u00b0C. No que diz respeito \u00e0s termina\u00e7\u00f5es dos cabos externos ligados a este comutador, considere utilizar o nosso <a href=\"https:\/\/niunielec.com\/pt\/product-category\/metal-clad-switchgear-components\/cable-clamp\/\">Bra\u00e7adeira para cabos industriais<\/a> para uma fixa\u00e7\u00e3o segura.<\/p>\n<ul>\n<li>P: \u00c9 compat\u00edvel com diferentes configura\u00e7\u00f5es de disjuntores no mesmo projeto?<\/li>\n<\/ul>\n<p>R: Sem d\u00favida. Para as sec\u00e7\u00f5es de prote\u00e7\u00e3o a v\u00e1cuo do seu projeto GIS, este interruptor funciona na perfei\u00e7\u00e3o em conjunto com o nosso <a href=\"https:\/\/niunielec.com\/pt\/product-category\/gas-insulated-switchgear-components\/circuit-bearker\/\">Disjuntor de v\u00e1cuo GIS<\/a>.<\/p>\n<p><strong>Solicite agora o cat\u00e1logo t\u00e9cnico completo ou um or\u00e7amento personalizado para o seu projeto de distribui\u00e7\u00e3o GIS.<\/strong><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Otimizado para GIS: Conce\u00e7\u00e3o para alta corrente (1250 A) destinada a arm\u00e1rios isolados a g\u00e1s.<\/li>\n<li>Desempenho est\u00e1vel: Em conformidade com a norma GB 3804-2017, garantindo fiabilidade a longo prazo.<\/li>\n<li>F\u00e1cil integra\u00e7\u00e3o: estrutura compacta, ideal para unidades combinadas de interruptores e fus\u00edveis.<\/li>\n<\/ul>","protected":false},"featured_media":3259,"comment_status":"open","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"NU-FH-12-1250-25 Load Switch | Gas-Insulated Switchgear LBS","_seopress_titles_desc":"Industrial-grade NU-FH-12-1250-25 Load Break Switch for 12kV\/1250A gas-insulated switchgear. Reliable power control for GIS cabinets and combined switch-fuse units.","_seopress_robots_index":""},"product_brand":[],"product_cat":[26,60],"product_tag":[280,268,282,281,279],"class_list":{"0":"post-3256","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gas-insulated-switchgear-components","7":"product_cat-load-switch-gas-insulated-switchgear-components","8":"product_tag-12kv-load-switch","9":"product_tag-gas-insulated-switchgear","10":"product_tag-gis-components","11":"product_tag-lbs-1250a","12":"product_tag-nu-fh-12-1250-25","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product\/3256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/comments?post=3256"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/media\/3259"}],"wp:attachment":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/media?parent=3256"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_brand?post=3256"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_cat?post=3256"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_tag?post=3256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}