{"id":3244,"date":"2026-04-27T05:33:41","date_gmt":"2026-04-27T05:33:41","guid":{"rendered":"https:\/\/niunielec.com\/?post_type=product&#038;p=3244"},"modified":"2026-04-27T05:33:41","modified_gmt":"2026-04-27T05:33:41","slug":"nu-gfv-12-630-20-gas-insulated-vacuum-circuit-breaker","status":"publish","type":"product","link":"https:\/\/niunielec.com\/ru\/%d0%bf%d1%80%d0%be%d0%b4%d1%83%d0%ba%d1%82\/nu-gfv-12-630-20-gas-insulated-vacuum-circuit-breaker\/","title":{"rendered":"NU-GFV-12-630-20 Semi-Enclosed Circuit Breaker for Eco-Friendly GIS"},"content":{"rendered":"<h2 id=\"h2-1\"><span style=\"font-size: 75%;\"><strong>Integrated NU-GFV-12-630-20 Circuit Breaker for Modern GIS Cabinets<\/strong><\/span><\/h2>\n<h3><span style=\"font-size: 75%;\"><strong>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0442\u043e\u0432\u0430\u0440\u0430<\/strong><\/span><\/h3>\n<p>The NU-GFV-12-630-20 Circuit Breaker is a high-performance vacuum arc-extinguishing solution designed specifically for 12kV\/630A environmentally friendly gas-insulated switchgear. This switch features an innovative integrated structure that combines an isolating switch and a circuit breaker, significantly simplifying installation and maintenance. By utilizing a vacuum chamber for arc suppression, it ensures high safety, stable performance, and the ability to interrupt short-circuit currents up to 20kA, meeting the rigorous standards of GB\/T1984-2014.<\/p>\n<h3><span style=\"font-size: 75%;\"><strong>Applications<\/strong><\/span><\/h3>\n<ul>\n<li>Core component for 12kV eco-friendly gas-insulated switchgear (GIS) cabinets.<\/li>\n<li>Designed to interrupt load currents and protect against short-circuit faults in industrial and grid networks.<\/li>\n<li>Flexible configurations (Isolator top\/VCB bottom or vice versa) to meet diverse power supply needs.<\/li>\n<\/ul>\n<h3><span style=\"font-size: 75%;\"><strong>\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b<\/strong><\/span><\/h3>\n<table style=\"border-collapse: collapse; width: 747.02pt;\" border=\"0\" width=\"1494\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et3\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">\u041d\u0435\u0442.<\/td>\n<td class=\"et3\" style=\"width: 344.50pt;\" width=\"689\">\u0410\u0440\u0442\u0438\u043a\u0443\u043b<\/td>\n<td class=\"et3\" style=\"width: 44.50pt;\" width=\"89\">\u0415\u0434\u0438\u043d\u0438\u0446\u0430<\/td>\n<td class=\"et3\" style=\"width: 91.50pt;\" width=\"183\">\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/td>\n<td class=\"et3\" style=\"width: 241.00pt;\" width=\"482\">Remark<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">1<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u043a\u0412<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">12<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">2<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">A<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">630<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">3<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Rated short-time withstand current<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">kA\/s<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">20\/4, 25\/4<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">4<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a \u043a\u043e\u0440\u043e\u0442\u043a\u043e\u0433\u043e \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u044f<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">kA<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">20<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">5<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u043f\u0438\u043a\u043e\u0432\u044b\u0439 \u0432\u044b\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u0442\u043e\u043a<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">kA<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">50\/63<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">6<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u044f \u043f\u0440\u0438 \u043a\u043e\u0440\u043e\u0442\u043a\u043e\u043c \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u0438<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">kA<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">50\/63<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">7<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Short-circuit closing times<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u0440\u0430\u0437<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">30<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">8<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Power frequency withstand voltage: Ground\/Phase-to-Phase<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u043a\u0412<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">42<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><span class=\"font1\">In dry air or N<\/span><span class=\"font3\">\u2082<\/span><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">9<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Power frequency withstand voltage: Fracture<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u043a\u0412<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">48<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><span class=\"font1\">In dry air or N<\/span><span class=\"font3\">\u2082<\/span><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">10<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Lightning impulse withstand voltage: Ground\/Phase-to-Phase<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u043a\u0412<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">75<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><span class=\"font1\">In dry air or N<\/span><span class=\"font3\">\u2082<\/span><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">11<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Lightning impulse withstand voltage: Fracture<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u043a\u0412<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">85<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><span class=\"font1\">In dry air or N<\/span><span class=\"font3\">\u2082<\/span><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">12<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Main circuit resistance<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u00b5\u03a9<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">\u2264 65<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\">Circuit breaker switch + Isolation switch<\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">13<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Mechanical life of the interrupter<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u0440\u0430\u0437<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">10000<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<tr style=\"height: 20.00pt;\">\n<td class=\"et4\" style=\"height: 20.00pt; width: 25.50pt;\" width=\"51\" height=\"40\">14<\/td>\n<td class=\"et4\" style=\"width: 344.50pt;\" width=\"689\">Mechanical life of isolation\/earthing switch<\/td>\n<td class=\"et4\" style=\"width: 44.50pt;\" width=\"89\">\u0440\u0430\u0437<\/td>\n<td class=\"et4\" style=\"width: 91.50pt;\" width=\"183\">5000<\/td>\n<td class=\"et4\" style=\"width: 241.00pt;\" width=\"482\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"font-size: 75%;\"><strong>\u0420\u0438\u0441\u043e\u0432\u0430\u043d\u0438\u0435<\/strong><\/span><\/h3>\n<p><strong>Upper<\/strong> isolation breaker switch outline and mounting dimensions<\/p>\n<figure id=\"attachment_3250\" aria-describedby=\"caption-attachment-3250\" style=\"width: 497px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3250\" src=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-497x768.webp\" alt=\"nu gfv 12 630 20 semi enclosed circuit breaker for eco friendly gis\" width=\"497\" height=\"768\" srcset=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-497x768.webp 497w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-663x1024.webp 663w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-285x440.webp 285w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-768x1187.webp 768w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-994x1536.webp 994w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-1325x2048.webp 1325w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-600x927.webp 600w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-upper-vcb-isolator-integrated-drawing-scaled.webp 1657w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><figcaption id=\"caption-attachment-3250\" class=\"wp-caption-text\"><strong>Lower<\/strong> isolation breaker switch outline and mounting dimensions<\/figcaption><\/figure>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3249\" src=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-562x768.webp\" alt=\"nu gfv 12 630 20 semi enclosed circuit breaker for eco friendly gis\" width=\"562\" height=\"768\" srcset=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-562x768.webp 562w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-749x1024.webp 749w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-322x440.webp 322w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-768x1049.webp 768w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-1124x1536.webp 1124w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-1499x2048.webp 1499w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-600x820.webp 600w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/04\/nu-gfv-12-630-20-lower-vcb-isolator-integrated-drawing-scaled.webp 1874w\" sizes=\"auto, (max-width: 562px) 100vw, 562px\" \/><\/p>\n<h3><span style=\"font-size: 75%;\"><strong>FAQ for Integrated GIS Circuit Breakers<\/strong><\/span><\/h3>\n<ul>\n<li>Q: What are the installation benefits of this Integrated VCB and Isolator?<\/li>\n<\/ul>\n<p>A: The integrated structure reduces the cabinet footprint, simplifies the linkage mechanism, and allows for much faster on-site installation.<\/p>\n<ul>\n<li>Q: How does the &#8220;Vacuum Arc-Extinguishing&#8221; benefit the switchgear?<\/li>\n<\/ul>\n<p>A: It ensures a maintenance-free arc suppression process with high electrical life and zero environmental pollution, perfectly matching &#8220;eco-friendly&#8221; GIS requirements.<\/p>\n<ul>\n<li>Q: Is the NU-GFV-12-630-20 suitable for environmentally demanding sites?<\/li>\n<\/ul>\n<p>A: While designed for gas-insulated cabinets, if you need measurement capabilities in the same cabinet, consider adding our NU-GFPT-12-630 PT Switch.<\/p>\n<p><a href=\"https:\/\/niunielec.com\/ru\/contact-us\/\">Inquire Now<\/a> for technical specifications and bulk pricing for the NU-GFV-12-630-20.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Integrated Structure: Combines isolating switch and circuit breaker for easy installation.<\/li>\n<li>High Safety: Vacuum interrupter ensures reliable short-circuit current interruption.<\/li>\n<li>Versatile Layout: Available in top-bottom or bottom-top configurations.<\/li>\n<\/ul>","protected":false},"featured_media":3248,"comment_status":"open","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"NU-GFV-12-630-20 Circuit Breaker | 12kV 630A VCB for GIS","_seopress_titles_desc":"High-performance NU-GFV-12-630-20 Vacuum Circuit Breaker for 12kV gas-insulated switchgear. Integrated structure with isolation for maximum reliability.","_seopress_robots_index":""},"product_brand":[],"product_cat":[26,61],"product_tag":[273,274,272,275,271],"class_list":{"0":"post-3244","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gas-insulated-switchgear-components","7":"product_cat-circuit-bearker","8":"product_tag-12kv-vcb","9":"product_tag-environmentally-friendly-switchgear","10":"product_tag-gas-insulated-circuit-breaker","11":"product_tag-integrated-switch","12":"product_tag-nu-gfv-12-630-20","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product\/3244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/comments?post=3244"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/media\/3248"}],"wp:attachment":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/media?parent=3244"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_brand?post=3244"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_cat?post=3244"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_tag?post=3244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}