{"id":926,"date":"2021-04-29T07:49:05","date_gmt":"2021-04-29T07:49:05","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&#038;p=926"},"modified":"2026-05-20T13:43:37","modified_gmt":"2026-05-20T05:43:37","slug":"gn30-12-12kv-rotary-indoor-high-voltage-disconnect-switch","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/th\/product\/gn30-12-12kv-rotary-indoor-high-voltage-disconnect-switch\/","title":{"rendered":"GN30-12 12kV Rotary Indoor High-voltage Disconnect Switch"},"content":{"rendered":"<p data-start=\"432\" data-end=\"636\">The GN30-12 series indoor disconnect switch is a <strong data-start=\"481\" data-end=\"513\">rotary-type isolating switch<\/strong> developed for indoor medium-voltage systems with rated voltage up to 12kV and frequency of 50\/60Hz. It is mainly used for:<\/p>\n<ul data-start=\"637\" data-end=\"789\">\n<li data-section-id=\"hsaqq\" data-start=\"637\" data-end=\"676\">opening and closing no-load circuits,<\/li>\n<li data-section-id=\"14vo0lj\" data-start=\"677\" data-end=\"714\">providing visible isolation points,<\/li>\n<li data-section-id=\"sii4nu\" data-start=\"715\" data-end=\"745\">ensuring maintenance safety,<\/li>\n<li data-section-id=\"f6qzp7\" data-start=\"746\" data-end=\"789\">grounding de-energized circuits (D type).<\/li>\n<\/ul>\n<p data-start=\"791\" data-end=\"819\">The switch can be installed:<\/p>\n<ul data-start=\"820\" data-end=\"913\">\n<li data-section-id=\"1fqkivr\" data-start=\"820\" data-end=\"836\">independently,<\/li>\n<li data-section-id=\"1kk2s7z\" data-start=\"837\" data-end=\"877\">inside high-voltage switchgear panels,<\/li>\n<li data-section-id=\"gpb4an\" data-start=\"878\" data-end=\"913\">in RMU and distribution cabinets.<\/li>\n<\/ul>\n<p data-start=\"915\" data-end=\"1056\">The <strong data-start=\"919\" data-end=\"931\">GN30-12D<\/strong> version includes an additional grounding knife switch for enhanced operational safety.<\/p>\n<h2 data-section-id=\"7jig15\" data-start=\"1058\" data-end=\"1074\">Main Features<\/h2>\n<ul data-start=\"1076\" data-end=\"1384\">\n<li data-section-id=\"1snvig\" data-start=\"1076\" data-end=\"1097\">Rated voltage: 12kV<\/li>\n<li data-section-id=\"1gwd3ap\" data-start=\"1098\" data-end=\"1130\">Rotary contact knife structure<\/li>\n<li data-section-id=\"14hph1y\" data-start=\"1131\" data-end=\"1158\">Compact installation size<\/li>\n<li data-section-id=\"1cst8xn\" data-start=\"1159\" data-end=\"1189\">Strong insulation capability<\/li>\n<li data-section-id=\"l8q2do\" data-start=\"1190\" data-end=\"1222\">Reliable visible isolation gap<\/li>\n<li data-section-id=\"v4un2\" data-start=\"1223\" data-end=\"1257\">Easy installation and adjustment<\/li>\n<li data-section-id=\"hmri40\" data-start=\"1258\" data-end=\"1296\">Optional grounding switch (GN30-12D)<\/li>\n<li data-section-id=\"jst4w6\" data-start=\"1297\" data-end=\"1337\">Suitable for indoor switchgear systems<\/li>\n<li data-section-id=\"26n3tf\" data-start=\"1338\" data-end=\"1384\">Stable mechanical and electrical performance<\/li>\n<\/ul>\n<p data-start=\"1386\" data-end=\"1423\">\n<h2 data-section-id=\"1cgu054\" data-start=\"1425\" data-end=\"1452\">Technical Specifications<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 601px;\" width=\"870\" data-start=\"1454\" data-end=\"1927\">\n<thead data-start=\"1454\" data-end=\"1478\">\n<tr data-start=\"1454\" data-end=\"1478\">\n<th class=\"last:pe-10\" data-start=\"1454\" data-end=\"1461\" data-col-size=\"sm\">Item<\/th>\n<th class=\"last:pe-10\" data-start=\"1461\" data-end=\"1478\" data-col-size=\"sm\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1489\" data-end=\"1927\">\n<tr data-start=\"1489\" data-end=\"1513\">\n<td data-start=\"1489\" data-end=\"1505\" data-col-size=\"sm\">Rated Voltage<\/td>\n<td data-start=\"1505\" data-end=\"1513\" data-col-size=\"sm\">12kV<\/td>\n<\/tr>\n<tr data-start=\"1514\" data-end=\"1540\">\n<td data-start=\"1514\" data-end=\"1532\" data-col-size=\"sm\">Maximum Voltage<\/td>\n<td data-start=\"1532\" data-end=\"1540\" data-col-size=\"sm\">12kV<\/td>\n<\/tr>\n<tr data-start=\"1541\" data-end=\"1570\">\n<td data-start=\"1541\" data-end=\"1559\" data-col-size=\"sm\">Rated Frequency<\/td>\n<td data-start=\"1559\" data-end=\"1570\" data-col-size=\"sm\">50\/60Hz<\/td>\n<\/tr>\n<tr data-start=\"1571\" data-end=\"1618\">\n<td data-start=\"1571\" data-end=\"1587\" data-col-size=\"sm\">Rated Current<\/td>\n<td data-start=\"1587\" data-end=\"1618\" data-col-size=\"sm\">400A \/ 630A \/ 1000A \/ 1250A<\/td>\n<\/tr>\n<tr data-start=\"1619\" data-end=\"1676\">\n<td data-start=\"1619\" data-end=\"1650\" data-col-size=\"sm\">Short-Time Withstand Current<\/td>\n<td data-start=\"1650\" data-end=\"1676\" data-col-size=\"sm\">12.5kA \/ 20kA \/ 31.5kA<\/td>\n<\/tr>\n<tr data-start=\"1677\" data-end=\"1726\">\n<td data-start=\"1677\" data-end=\"1702\" data-col-size=\"sm\">Peak Withstand Current<\/td>\n<td data-start=\"1702\" data-end=\"1726\" data-col-size=\"sm\">31.5kA \/ 50kA \/ 80kA<\/td>\n<\/tr>\n<tr data-start=\"1727\" data-end=\"1758\">\n<td data-start=\"1727\" data-end=\"1752\" data-col-size=\"sm\">Short-Circuit Duration<\/td>\n<td data-start=\"1752\" data-end=\"1758\" data-col-size=\"sm\">4s<\/td>\n<\/tr>\n<tr data-start=\"1759\" data-end=\"1803\">\n<td data-start=\"1759\" data-end=\"1795\" data-col-size=\"sm\">Power Frequency Withstand Voltage<\/td>\n<td data-start=\"1795\" data-end=\"1803\" data-col-size=\"sm\">42kV<\/td>\n<\/tr>\n<tr data-start=\"1804\" data-end=\"1857\">\n<td data-start=\"1804\" data-end=\"1842\" data-col-size=\"sm\">Lightning Impulse Withstand Voltage<\/td>\n<td data-start=\"1842\" data-end=\"1857\" data-col-size=\"sm\">75kV \/ 85kV<\/td>\n<\/tr>\n<tr data-start=\"1858\" data-end=\"1896\">\n<td data-start=\"1858\" data-end=\"1876\" data-col-size=\"sm\">Mechanical Life<\/td>\n<td data-start=\"1876\" data-end=\"1896\" data-col-size=\"sm\">\u22652000 operations<\/td>\n<\/tr>\n<tr data-start=\"1897\" data-end=\"1927\">\n<td data-start=\"1897\" data-end=\"1917\" data-col-size=\"sm\">Installation Type<\/td>\n<td data-start=\"1917\" data-end=\"1927\" data-col-size=\"sm\">Indoor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"1929\" data-end=\"1966\">\n<h2 data-section-id=\"7ofzv1\" data-start=\"1968\" data-end=\"1984\">Model Meaning<\/h2>\n<p data-start=\"1986\" data-end=\"2009\">Typical models include:<\/p>\n<ul data-start=\"2011\" data-end=\"2087\">\n<li data-section-id=\"kzeowy\" data-start=\"2011\" data-end=\"2029\">GN30-12\/400-12.5<\/li>\n<li data-section-id=\"1s0apw9\" data-start=\"2030\" data-end=\"2046\">GN30-12\/630-20<\/li>\n<li data-section-id=\"1ul10xi\" data-start=\"2047\" data-end=\"2066\">GN30-12\/1000-31.5<\/li>\n<li data-section-id=\"cpcn91\" data-start=\"2067\" data-end=\"2087\">GN30-12D\/1250-31.5<\/li>\n<\/ul>\n<p data-start=\"2089\" data-end=\"2097\">Meaning:<\/p>\n<ul data-start=\"2098\" data-end=\"2336\">\n<li data-section-id=\"1qwvxr3\" data-start=\"2098\" data-end=\"2133\"><strong data-start=\"2100\" data-end=\"2106\">GN<\/strong> = Indoor disconnect switch<\/li>\n<li data-section-id=\"97plon\" data-start=\"2134\" data-end=\"2165\"><strong data-start=\"2136\" data-end=\"2142\">30<\/strong> = Design serial number<\/li>\n<li data-section-id=\"85c59q\" data-start=\"2166\" data-end=\"2195\"><strong data-start=\"2168\" data-end=\"2174\">12<\/strong> = Rated voltage (kV)<\/li>\n<li data-section-id=\"3jnpdw\" data-start=\"2196\" data-end=\"2227\"><strong data-start=\"2198\" data-end=\"2203\">D<\/strong> = With grounding switch<\/li>\n<li data-section-id=\"6jc74j\" data-start=\"2228\" data-end=\"2277\"><strong data-start=\"2230\" data-end=\"2257\">400 \/ 630 \/ 1000 \/ 1250<\/strong> = Rated current (A)<\/li>\n<li data-section-id=\"9e7ui8\" data-start=\"2278\" data-end=\"2336\"><strong data-start=\"2280\" data-end=\"2300\">12.5 \/ 20 \/ 31.5<\/strong> = Short-time withstand current (kA)<\/li>\n<\/ul>\n<p data-start=\"2338\" data-end=\"2375\">\n<h2 data-section-id=\"1cshqw4\" data-start=\"2377\" data-end=\"2398\">Working Conditions<\/h2>\n<ul data-start=\"2400\" data-end=\"2695\">\n<li data-section-id=\"koyoym\" data-start=\"2400\" data-end=\"2437\">Ambient temperature: -10\u00b0C to +40\u00b0C<\/li>\n<li data-section-id=\"14442p6\" data-start=\"2438\" data-end=\"2456\">Altitude: \u22641000m<\/li>\n<li data-section-id=\"ktn6sm\" data-start=\"2457\" data-end=\"2525\">Relative humidity:\n<ul data-start=\"2480\" data-end=\"2525\">\n<li data-section-id=\"1ouc9j3\" data-start=\"2480\" data-end=\"2500\">Daily average \u226495%<\/li>\n<li data-section-id=\"1umxtza\" data-start=\"2503\" data-end=\"2525\">Monthly average \u226490%<\/li>\n<\/ul>\n<\/li>\n<li data-section-id=\"2ue1sk\" data-start=\"2526\" data-end=\"2559\">Earthquake intensity: \u22648 degree<\/li>\n<li data-section-id=\"13gigoy\" data-start=\"2560\" data-end=\"2695\">Installation site should be free from:\n<ul data-start=\"2603\" data-end=\"2695\">\n<li data-section-id=\"14m1nyz\" data-start=\"2603\" data-end=\"2625\">explosive materials,<\/li>\n<li data-section-id=\"vtdwct\" data-start=\"2628\" data-end=\"2646\">corrosive gases,<\/li>\n<li data-section-id=\"11t5hnk\" data-start=\"2649\" data-end=\"2663\">severe dust,<\/li>\n<li data-section-id=\"bpvujh\" data-start=\"2666\" data-end=\"2695\">frequent violent vibration.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p data-start=\"2697\" data-end=\"2734\">\n<h2 data-section-id=\"mu966k\" data-start=\"2736\" data-end=\"2751\">Applications<\/h2>\n<ul data-start=\"2753\" data-end=\"2924\">\n<li data-section-id=\"1bii01l\" data-start=\"2753\" data-end=\"2780\">Medium-voltage switchgear<\/li>\n<li data-section-id=\"1xyx80k\" data-start=\"2781\" data-end=\"2801\">Indoor substations<\/li>\n<li data-section-id=\"1poxyi7\" data-start=\"2802\" data-end=\"2825\">Ring main units (RMU)<\/li>\n<li data-section-id=\"zwftoh\" data-start=\"2826\" data-end=\"2857\">Transformer isolation systems<\/li>\n<li data-section-id=\"5irm6i\" data-start=\"2858\" data-end=\"2889\">Industrial power distribution<\/li>\n<li data-section-id=\"19i5lgf\" data-start=\"2890\" data-end=\"2924\">Electrical maintenance isolation<\/li>\n<\/ul>\n<h2 data-section-id=\"dysc5y\" data-start=\"2926\" data-end=\"2947\">Product Advantages<\/h2>\n<h3 data-section-id=\"1ey7rn4\" data-start=\"2949\" data-end=\"2974\">Compact Rotary Design<\/h3>\n<p data-start=\"2975\" data-end=\"3079\">The rotary blade structure minimizes installation space and is suitable for compact switchgear cabinets.<\/p>\n<h3 data-section-id=\"18navqy\" data-start=\"3081\" data-end=\"3103\">Reliable Isolation<\/h3>\n<p data-start=\"3104\" data-end=\"3172\">Provides a clear visible disconnection point for maintenance safety.<\/p>\n<h3 data-section-id=\"srobkt\" data-start=\"3174\" data-end=\"3207\">Strong Insulation Performance<\/h3>\n<p data-start=\"3208\" data-end=\"3271\">Designed for stable operation in medium-voltage indoor systems.<\/p>\n<h3 data-section-id=\"1jlur85\" data-start=\"3273\" data-end=\"3293\">Easy Maintenance<\/h3>\n<p data-start=\"3294\" data-end=\"3379\">Simple mechanical structure allows convenient installation and long-term maintenance.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Outline Drawing<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-929\" src=\"http:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1.jpg\" alt=\"\" width=\"680\" height=\"1000\" srcset=\"https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1.jpg 680w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-204x300.jpg 204w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-600x882.jpg 600w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-930\" src=\"http:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-1.jpg\" alt=\"\" width=\"680\" height=\"152\" srcset=\"https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-1.jpg 680w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-1-300x67.jpg 300w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2021\/04\/GN30-indoor-high-voltage-disconnect-switch-1-1-600x134.jpg 600w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>GN30-12 rotary indoor high-voltage disconnect switch is designed for 12kV indoor AC distribution systems.<\/p>\n<p>It provides reliable no-load isolation, compact installation, and safe operation for switchgear and substations.<\/p>","protected":false},"featured_media":932,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"GN30-12 Rotary Indoor High Voltage Disconnect Switch | 12kV Isolating Switch","_seopress_titles_desc":"GN30-12 rotary indoor high-voltage disconnect switch for 12kV medium-voltage systems. Compact indoor isolating switch with reliable rotary contact structure and optional grounding switch.","_seopress_robots_index":""},"product_brand":[],"product_cat":[46],"product_tag":[],"class_list":{"0":"post-926","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-high-voltage-disconnect-switch","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product\/926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/media\/932"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/media?parent=926"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_brand?post=926"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_cat?post=926"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_tag?post=926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}