{"id":985,"date":"2026-03-23T02:49:10","date_gmt":"2026-03-23T02:49:10","guid":{"rendered":"https:\/\/cnfuerte.com\/?post_type=product&#038;p=985"},"modified":"2026-07-08T03:18:40","modified_gmt":"2026-07-08T03:18:40","slug":"vacuum-circuit-breaker","status":"publish","type":"product","link":"https:\/\/cnfuerte.com\/id\/product\/vacuum-circuit-breaker\/","title":{"rendered":"Vacuum Circuit Breaker"},"content":{"rendered":"<h2>Product Feature<\/h2>\n<p>\u25c6Circuit breaker is composed of operation mechanism,conductive loop,transmission system,insulation system,sealing parts and box. The complete instructure is three-phase common box type.<\/p>\n<p>\u25c6Conductive loop is connected by feeding in and out conductive pole, conductive clamp, flexible link and vacuum arc-extinguished chamber.<\/p>\n<p>\u25c6Inner insulation is fulfilled mainly by three-phase separate insulating box and SF6 gas.Feeding in and out conductor bushing of outer insulation is integrally completed by epoxy resin and silicone rubber to ensure the mechanical strength and electrical insulation performance,moreover, it has features of UV-resistant, anti-pollution, etc.<\/p>\n<p>\u25c6It adopts fully enclosed structure which filled with SF6 gas,has good sealing performance and prevent dewing,suitable for use of high temperature and wet area.<\/p>\n<h2>Main Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<td width=\"72\">Rated voltage<\/td>\n<td width=\"72\">kV<\/td>\n<td width=\"151\">12<\/td>\n<\/tr>\n<tr>\n<td>1 min rated power-frequency withstand voltage (effective value)<\/td>\n<td>kV<\/td>\n<td width=\"151\">Phase to phase:42<br \/>\nPhase to ground:42<br \/>\nFracture:48<\/td>\n<\/tr>\n<tr>\n<td>Rated lightning impulse withstand voltage (peak value)<\/td>\n<td>kV<\/td>\n<td width=\"151\">Phase to phase:75<br \/>\nPhase to ground:75<br \/>\nFracture:85<\/td>\n<\/tr>\n<tr>\n<td>Rated current<\/td>\n<td>A<\/td>\n<td>630<\/td>\n<\/tr>\n<tr>\n<td>Rated frequency<\/td>\n<td>Hz<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>Rated short-circuit breaking current(effective value)<\/td>\n<td>kA<\/td>\n<td>12.5 16 20 25<\/td>\n<\/tr>\n<tr>\n<td>Rated short-circuit making current(peak value)<\/td>\n<td>kA<\/td>\n<td>31.5 40 50 63<\/td>\n<\/tr>\n<tr>\n<td>Rated peak withstand current<\/td>\n<td>kA<\/td>\n<td>31.5 40 50 63<\/td>\n<\/tr>\n<tr>\n<td>4s rated short-circuit withstand current (effective value)<\/td>\n<td>kA<\/td>\n<td>12.5 16 20 25<\/td>\n<\/tr>\n<tr>\n<td>Rated operation sequence<\/td>\n<td><\/td>\n<td>open-0.3s-close open-180s-close open<\/td>\n<\/tr>\n<tr>\n<td>Rated short-circuit breaking current breaking times<\/td>\n<td>times<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td>Mechanical life<\/td>\n<td>times<\/td>\n<td>10000<\/td>\n<\/tr>\n<tr>\n<td>Second-time circuit 1 min power-frequency withstand voltage<\/td>\n<td>V<\/td>\n<td>2000<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Kg<\/td>\n<td>145<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Main Mechanical Characteristics<\/h2>\n<table>\n<tbody>\n<tr>\n<td width=\"72\">Contact distance<\/td>\n<td width=\"72\">mm<\/td>\n<td width=\"72\">9\u00b11<\/td>\n<\/tr>\n<tr>\n<td>Contact ultra travel<\/td>\n<td>mm<\/td>\n<td>3\u00b11<\/td>\n<\/tr>\n<tr>\n<td>Contact bouncing time on closing<\/td>\n<td>ms<\/td>\n<td>\u22642<\/td>\n<\/tr>\n<tr>\n<td>Three-phase non-synchronous opening<\/td>\n<td>ms<\/td>\n<td>\u22642<\/td>\n<\/tr>\n<tr>\n<td>Average opening speed<\/td>\n<td>m\/s<\/td>\n<td>0.65\u00b10.2<\/td>\n<\/tr>\n<tr>\n<td>Average closing speed<\/td>\n<td>m\/s<\/td>\n<td>1.2\u00b10.2<\/td>\n<\/tr>\n<tr>\n<td>Closing time<\/td>\n<td>ms<\/td>\n<td>30~100<\/td>\n<\/tr>\n<tr>\n<td>Opening time<\/td>\n<td>ms<\/td>\n<td>25~60<\/td>\n<\/tr>\n<tr>\n<td>Central distance of interphase<\/td>\n<td>mm<\/td>\n<td>275<\/td>\n<\/tr>\n<tr>\n<td>Main circuit resistance<\/td>\n<td>\u03bc\u03a9<\/td>\n<td>\u2264120<\/td>\n<\/tr>\n<tr>\n<td>SF6 gas pressure<\/td>\n<td>Mpa<\/td>\n<td>0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>ZW20-12 series outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is distribution equipment of three-phase alternative current 50Hz which voltage rated at 12kV,it&#8217;s mainly used for breaking and making load current,overload current, and short-circuit current in power system.It&#8217;s suitable for use as protection and control in urban and rural power network, more suitable for places where are frequently operated.<\/p>","protected":false},"featured_media":986,"template":"","meta":{"_gspb_post_css":""},"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":["post-985","product","type-product","status-publish","has-post-thumbnail","product_cat-vacuum-circuit-breaker","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/product\/985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/media\/986"}],"wp:attachment":[{"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/media?parent=985"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/product_brand?post=985"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/product_cat?post=985"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cnfuerte.com\/id\/wp-json\/wp\/v2\/product_tag?post=985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}