{"id":12277,"date":"2025-01-11T10:38:00","date_gmt":"2025-01-11T02:38:00","guid":{"rendered":"https:\/\/www.tosunlux.eu\/?p=12277"},"modified":"2025-01-13T11:27:58","modified_gmt":"2025-01-13T03:27:58","slug":"the-interrupt-capacity-of-circuit-breakers","status":"publish","type":"post","link":"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/","title":{"rendered":"Quelle est la capacit\u00e9 d&#039;interruption d&#039;un disjoncteur ?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 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\" >Table des mati\u00e8res<\/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=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#What_is_Interrupt_Capacity\" title=\"Qu&#039;est-ce que la capacit\u00e9 d&#039;interruption ?\">Qu&#039;est-ce que la capacit\u00e9 d&#039;interruption ?<\/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.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#What_Determines_a_Circuits_Capacity\" title=\"Qu&#039;est-ce qui d\u00e9termine la capacit\u00e9 d&#039;un circuit ?\">Qu&#039;est-ce qui d\u00e9termine la capacit\u00e9 d&#039;un circuit ?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#Conductor_Size\" title=\"Taille du conducteur\">Taille du conducteur<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#Breaker_Type\" title=\"Type de disjoncteur\">Type de disjoncteur<\/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.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#System_Voltage_and_Load\" title=\"Tension et charge du syst\u00e8me\">Tension et charge du syst\u00e8me<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#Interrupting_Capacities_of_Circuit_Breakers\" title=\"Capacit\u00e9s d&#039;interruption des disjoncteurs\">Capacit\u00e9s d&#039;interruption des disjoncteurs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/#How_to_Calculate_the_Required_Interrupt_Rating\" title=\"Comment calculer la puissance d&#039;interruption requise\">Comment calculer la puissance d&#039;interruption requise<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>La capacit\u00e9 d&#039;interruption d&#039;un disjoncteur est sa capacit\u00e9 \u00e0 d\u00e9connecter en toute s\u00e9curit\u00e9 un circuit d\u00e9fectueux en interrompant un court-circuit ou un courant de surcharge.&nbsp;<\/p>\n\n\n\n<p>Cette classification est essentielle pour s\u00e9lectionner le bon disjoncteur pour un syst\u00e8me, assurer la s\u00e9curit\u00e9 et pr\u00e9venir les dommages.&nbsp;<\/p>\n\n\n\n<p>La compr\u00e9hension des valeurs nominales d&#039;interruption permet d&#039;\u00e9viter les pannes catastrophiques en faisant correspondre les disjoncteurs aux niveaux de courant de d\u00e9faut sp\u00e9cifiques \u00e0 une installation \u00e9lectrique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_Interrupt_Capacity\"><\/span>Qu&#039;est-ce que la capacit\u00e9 d&#039;interruption ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La capacit\u00e9 d&#039;interruption fait r\u00e9f\u00e9rence \u00e0 la quantit\u00e9 maximale de courant de d\u00e9faut qu&#039;un disjoncteur peut interrompre en toute s\u00e9curit\u00e9 sans \u00eatre endommag\u00e9 ni pr\u00e9senter de danger pour le syst\u00e8me \u00e9lectrique.&nbsp;<\/p>\n\n\n\n<p>Lorsqu&#039;un court-circuit ou une surcharge se produit, la fonction principale du disjoncteur est d&#039;isoler le circuit d\u00e9fectueux du syst\u00e8me.&nbsp;<\/p>\n\n\n\n<p>Si le courant de d\u00e9faut d\u00e9passe la capacit\u00e9 d&#039;interruption du disjoncteur, celui-ci peut ne pas s&#039;ouvrir correctement, ce qui peut entra\u00eener des conditions dangereuses telles que des incendies \u00e9lectriques ou des dommages mat\u00e9riels.<\/p>\n\n\n\n<p>Cette valeur nominale est g\u00e9n\u00e9ralement exprim\u00e9e en kiloamp\u00e8res (kA) et constitue un facteur crucial lors du choix des disjoncteurs.&nbsp;<\/p>\n\n\n\n<p>Un disjoncteur avec une capacit\u00e9 d&#039;interruption plus \u00e9lev\u00e9e est con\u00e7u pour g\u00e9rer des courants de d\u00e9faut plus importants.&nbsp;<\/p>\n\n\n\n<p>Par exemple, un disjoncteur de 10 kA peut interrompre en toute s\u00e9curit\u00e9 des courants de d\u00e9faut allant jusqu\u2019\u00e0 10\u00a0000 amp\u00e8res.&nbsp;<\/p>\n\n\n\n<p>Le choix d\u2019un disjoncteur avec une capacit\u00e9 d\u2019interruption appropri\u00e9e garantit qu\u2019en cas de d\u00e9faut, le disjoncteur se d\u00e9clenchera rapidement pour prot\u00e9ger le syst\u00e8me, r\u00e9duisant ainsi le risque de dommages ou d\u2019incendie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Determines_a_Circuits_Capacity\"><\/span>Qu&#039;est-ce qui d\u00e9termine la capacit\u00e9 d&#039;un circuit ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La capacit\u00e9 d&#039;un circuit fait r\u00e9f\u00e9rence \u00e0 la quantit\u00e9 de courant qu&#039;il peut g\u00e9rer en toute s\u00e9curit\u00e9 sans surchauffer ni subir de dommages permanents.&nbsp;<\/p>\n\n\n\n<p>Plusieurs facteurs d\u00e9terminent la capacit\u00e9 d&#039;un circuit, notamment la taille du conducteur, la tension du syst\u00e8me, le type de disjoncteur et la conception globale du syst\u00e8me.&nbsp;<\/p>\n\n\n\n<p>Les syst\u00e8mes \u00e9lectriques correctement con\u00e7us seront dot\u00e9s de disjoncteurs con\u00e7us pour g\u00e9rer le courant de d\u00e9faut potentiel maximal qui pourrait survenir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conductor_Size\"><\/span>Taille du conducteur<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Des conducteurs plus gros permettent \u00e0 plus de courant de circuler dans le circuit sans surchauffe, augmentant ainsi la capacit\u00e9 globale du circuit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Breaker_Type\"><\/span>Type de disjoncteur<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Diff\u00e9rents types de disjoncteurs, tels que les disjoncteurs miniatures, les disjoncteurs \u00e0 bo\u00eetier moul\u00e9 et les disjoncteurs \u00e0 disjoncteurs alternatifs, ont des capacit\u00e9s de coupure diff\u00e9rentes. Le type de disjoncteur choisi doit correspondre aux besoins sp\u00e9cifiques du syst\u00e8me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"System_Voltage_and_Load\"><\/span>Tension et charge du syst\u00e8me<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Les syst\u00e8mes \u00e0 haute tension n\u00e9cessitent des disjoncteurs avec des capacit\u00e9s de coupure plus \u00e9lev\u00e9es.&nbsp;<\/p>\n\n\n\n<p>La charge maximale sur le circuit influence la capacit\u00e9 d&#039;interruption requise, car une charge plus \u00e9lev\u00e9e augmente le risque de courts-circuits ou de surintensit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Interrupting_Capacities_of_Circuit_Breakers\"><\/span>Capacit\u00e9s d&#039;interruption des disjoncteurs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Type de disjoncteur<\/strong><\/td><td><strong>Capacit\u00e9 d&#039;interruption typique<\/strong><\/td><td><strong>Application<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/www.tosunlux.eu\/fr\/molded-case-circuit-breaker\/\">MCCB (Disjoncteur \u00e0 bo\u00eetier moul\u00e9)<\/a><\/td><td>10 kA, 25 kA, 65 kA<\/td><td>Utilisation industrielle, commerciale et r\u00e9sidentielle ; prot\u00e8ge contre les surcharges et les courts-circuits.<\/td><\/tr><tr><td><a href=\"https:\/\/www.tosunlux.eu\/fr\/miniature-circuit-breaker\/\">Disjoncteur miniature (MCB)<\/a><\/td><td>6 kA, 10 kA<\/td><td>Utilisation r\u00e9sidentielle et commerciale l\u00e9g\u00e8re ; convient aux courants de d\u00e9faut plus faibles.<\/td><\/tr><tr><td>Disjoncteur \u00e0 air (ACB)<\/td><td>10 kA \u00e0 85 kA<\/td><td>Applications industrielles ; g\u00e8re des courants de d\u00e9faut plus \u00e9lev\u00e9s.<\/td><\/tr><tr><td>VCB (Disjoncteur \u00e0 vide)<\/td><td>25 kA \u00e0 40 kA<\/td><td>Syst\u00e8mes moyenne tension ; id\u00e9al pour la protection des transformateurs et des lignes de distribution.<\/td><\/tr><tr><td>Disjoncteur SF\u2086<\/td><td>100 kA et plus<\/td><td>Applications haute tension ; utilis\u00e9es dans les sous-stations et les centrales \u00e9lectriques.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Calculate_the_Required_Interrupt_Rating\"><\/span>Comment calculer la puissance d&#039;interruption requise<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pour garantir que le disjoncteur s\u00e9lectionn\u00e9 est adapt\u00e9 au syst\u00e8me, il est n\u00e9cessaire de calculer la capacit\u00e9 de coupure requise.&nbsp;<\/p>\n\n\n\n<p>Il s\u2019agit de d\u00e9terminer le courant de d\u00e9faut maximal qui pourrait se produire dans le syst\u00e8me.<\/p>\n\n\n\n<p><strong>\u00c9tape 1 : Identifier le courant de d\u00e9faut<\/strong>:Commencez par identifier le niveau de d\u00e9faut et l\u2019imp\u00e9dance du transformateur.<\/p>\n\n\n\n<p><strong>\u00c9tape 2 : Calculer le courant de court-circuit potentiel<\/strong>:Utilisez la configuration du syst\u00e8me pour calculer le courant de d\u00e9faut maximal qui pourrait r\u00e9sulter d&#039;un court-circuit.<\/p>\n\n\n\n<p><strong>\u00c9tape 3 : S\u00e9lectionnez le disjoncteur<\/strong>:Faites correspondre la valeur nominale d&#039;interruption du disjoncteur pour d\u00e9passer le courant de d\u00e9faut calcul\u00e9 afin d&#039;assurer la protection.<\/p>\n\n\n\n<p>Dans les installations complexes, les outils logiciels peuvent aider \u00e0 effectuer des calculs pr\u00e9cis, garantissant ainsi la s\u00e9lection correcte du disjoncteur.<\/p>\n\n\n\n\n  <style>\n\t\t\t.module {\n\t\t\t\tmargin: 10px 0 30px 0;\n\t\t\t\twidth: 100%;\n\t\t\t\ttext-align: left;\n\t\t\t}\n\t\t\t\/* \u6807\u9898 *\/\n\t\t\t.module .module-title {\n\t\t\t\tfont-size: 18px;\n\t\t\t\tdisplay: flex;\n\t\t\t\talign-items: center;\n\t\t\t}\n\n\t\t\t.module 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-->\n\t\t\t\t\t\t<path\n\t\t\t\t\t\t\td='M780.326392 552.484859H241.880077a39.95891 39.95891 0 0 1 0-79.91782h538.446315a39.95891 39.95891 0 0 1 0 79.91782z'\n\t\t\t\t\t\t\tfill=' #00b1cdbd' p-id='2001'><\/path>\n\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t<\/svg>\n\t\t\t\t<\/button>\n\t\t\t<\/div>\n\t\t\t<div class='module-content'>\n\t\t\t\t<div class='d1' style='background-color: #00b1cdbd'>\n\t\t\t\t\t<!-- \u8fd9\u662f\u6587\u5b57\u7b80\u4ecb -->\n\t\t\t\t\t<span style='font-size:18px'>Le TOSUNlux utilise uniquement des sources de haute qualit\u00e9, y compris des \u00e9tudes \u00e9valu\u00e9es par des pairs, pour \u00e9tayer les faits contenus dans nos articles. Notre engagement envers l\u2019exactitude et la fiabilit\u00e9 garantit que les lecteurs re\u00e7oivent des informations bien document\u00e9es auxquelles ils peuvent avoir confiance.\r\n\t\t\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<ul class='d2'>\n\t\t\t\t\n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/ewh.ieee.org\/r6\/san_francisco\/ias\/archive\/pdf\/archived_presentations\/Interrupting_Capacity.pdf'>Capacit\u00e9 de coupure du disjoncteur<\/a><\/li>\n  \n\t\t\t\t<\/ul>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<script>\n\t\t\tconst moduleButtons = document.querySelectorAll('.module-button');\n\t\t\tconst svg1 = document.getElementById('svg-1');\n\t\t\tconst svg2 = document.getElementById('svg-2');\n\t\t\tfor (const button of moduleButtons) {\n\t\t\t\tbutton.addEventListener('click', function() {\n\t\t\t\t\tconst content = this.parentNode.nextElementSibling;\n\t\t\t\t\tcontent.classList.toggle('show');\n\t\t\t\t\tconst svg = 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\u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t\t<path\n\t\t\t\t\t\t\td='M780.326392 552.484859H241.880077a39.95891 39.95891 0 0 1 0-79.91782h538.446315a39.95891 39.95891 0 0 1 0 79.91782z'\n\t\t\t\t\t\t\tfill=' #00b1cdbd' p-id='1845'><\/path>\n\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t\t<path\n\t\t\t\t\t\t\td='M511.602721 822.207503a39.95891 39.95891 0 0 1-39.958911-39.95891V243.802278a39.95891 39.95891 0 1 1 79.917821 0v538.446315a39.95891 39.95891 0 0 1-39.95891 39.95891z'\n\t\t\t\t\t\t\tfill=' #00b1cdbd' p-id='1846'><\/path>\n\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t<\/svg>\n\t\t\t\t\t<svg id='svg-2' style='display:none' t='1710230227147' class='icon' viewbox='0 0 1026 1024'\n\t\t\t\t\t\tversion='1.1' xmlns='http:\/\/www.w3.org\/2000\/svg' p-id='1999' width='18' height='18'>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u5927\u5c0f\u8bf7\u5728width\u548cheight\u4e2d\u6539 -->\n\t\t\t\t\t\t<path\n\t\t\t\t\t\t\td='M511.602721 1023.001027a511.474051 511.474051 0 1 1 360.629164-148.84694 509.476105 509.476105 0 0 1-360.629164 149.845913z m0-941.032335c-109.887003 0-220.772979 41.956856-304.686691 125.870567-167.827423 168.826396-167.827423 441.545958 0 609.373381s440.546985 167.827423 609.373381 0c167.827423-167.827423 167.827423-440.546985 0-609.373381-83.913711-82.914739-194.799687-124.871594-304.68669-124.871595z m332.657927 763.215185z'\n\t\t\t\t\t\t\tfill=' #00b1cdbd' p-id='2000'><\/path>\n\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t\t<path\n\t\t\t\t\t\t\td='M780.326392 552.484859H241.880077a39.95891 39.95891 0 0 1 0-79.91782h538.446315a39.95891 39.95891 0 0 1 0 79.91782z'\n\t\t\t\t\t\t\tfill=' #00b1cdbd' p-id='2001'><\/path>\n\t\t\t\t\t\t\t<!-- \u4fee\u6539\u56fe\u6807\u989c\u8272\u8bf7\u5728fill\u4e2d\u6539 -->\n\t\t\t\t\t<\/svg>\n\t\t\t\t<\/button>\n\t\t\t<\/div>\n\t\t\t<div class='module-content'>\n\t\t\t\t<div class='d1' style='background-color: #00b1cdbd'>\n\t\t\t\t\t<!-- \u8fd9\u662f\u6587\u5b57\u7b80\u4ecb -->\n\t\t\t\t\t<span style='font-size:18px'>Le TOSUNlux utilise uniquement des sources de haute qualit\u00e9, y compris des \u00e9tudes \u00e9valu\u00e9es par des pairs, pour \u00e9tayer les faits contenus dans nos articles. Notre engagement envers l\u2019exactitude et la fiabilit\u00e9 garantit que les lecteurs re\u00e7oivent des informations bien document\u00e9es auxquelles ils peuvent avoir confiance.\r\n\t\t\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<ul class='d2'>\n\t\t\t\t\n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/ewh.ieee.org\/r6\/san_francisco\/ias\/archive\/pdf\/archived_presentations\/Interrupting_Capacity.pdf'>Capacit\u00e9 de coupure du disjoncteur<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electrical-circuit-protection\/fuses\/solution-center\/bus-ele-tech-lib-interrupting-capacity-vs-interrupting-rating.pdf'>Application du pouvoir de coupure : disjoncteurs<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.se.com\/us\/en\/faqs\/FA93276\/'>Que signifie l&#039;intensit\u00e9 nominale de coupure sur un circuit<\/a><\/li>\n  \n\t\t\t\t<\/ul>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<script>\n\t\t\tconst moduleButtons = document.querySelectorAll('.module-button');\n\t\t\tconst svg1 = document.getElementById('svg-1');\n\t\t\tconst svg2 = document.getElementById('svg-2');\n\t\t\tfor (const button of moduleButtons) {\n\t\t\t\tbutton.addEventListener('click', function() {\n\t\t\t\t\tconst content = this.parentNode.nextElementSibling;\n\t\t\t\t\tcontent.classList.toggle('show');\n\t\t\t\t\tconst svg = this.querySelector('svg');\n\t\t\t\t\tconst plusPath = svg.querySelector('#plus');\n\t\t\t\t});\n\t\t\t\tsvg1.addEventListener('click', function() {\n\t\t\t\t\tsvg1.style.display = 'none';\n\t\t\t\t\tsvg2.style.display = 'block';\n\t\t\t\t});\n\n\t\t\t\tsvg2.addEventListener('click', function() {\n\t\t\t\t\tsvg2.style.display = 'none';\n\t\t\t\t\tsvg1.style.display = 'block';\n\t\t\t\t});\n\t\t\t}\n\t\t<\/script>\n\n  \n  <style>\n\t\t\t.module 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Notre engagement envers l\u2019exactitude et la fiabilit\u00e9 garantit que les lecteurs re\u00e7oivent des informations bien document\u00e9es auxquelles ils peuvent avoir confiance.\r\n\t\t\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<ul class='d2'>\n\t\t\t\t\n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/ewh.ieee.org\/r6\/san_francisco\/ias\/archive\/pdf\/archived_presentations\/Interrupting_Capacity.pdf'>Capacit\u00e9 de coupure du disjoncteur<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electrical-circuit-protection\/fuses\/solution-center\/bus-ele-tech-lib-interrupting-capacity-vs-interrupting-rating.pdf'>Application du pouvoir de coupure : disjoncteurs<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.se.com\/us\/en\/faqs\/FA93276\/'>Que signifie l&#039;intensit\u00e9 nominale de coupure sur un circuit<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.iallway.com\/blog\/molded-case-circuit-breaker\/mccb-interrupting-capacity-considerations\/'>Comment choisir des disjoncteurs \u00e0 bo\u00eetier moul\u00e9 en fonction de leur capacit\u00e9 de coupure<\/a><\/li>\n  \n  <li style='list-style: decimal;font-size:18px;'><a class='aaa a2' target='_blank' href='https:\/\/www.researchgate.net\/publication\/4093657_Circuit_breaker_interrupting_capacity_and_short-time_current_ratings'>Pouvoir de coupure du disjoncteur<\/a><\/li>\n  \n\t\t\t\t<\/ul>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<script>\n\t\t\tconst moduleButtons = document.querySelectorAll('.module-button');\n\t\t\tconst svg1 = document.getElementById('svg-1');\n\t\t\tconst svg2 = document.getElementById('svg-2');\n\t\t\tfor (const button of moduleButtons) {\n\t\t\t\tbutton.addEventListener('click', function() {\n\t\t\t\t\tconst content = this.parentNode.nextElementSibling;\n\t\t\t\t\tcontent.classList.toggle('show');\n\t\t\t\t\tconst svg = this.querySelector('svg');\n\t\t\t\t\tconst plusPath = svg.querySelector('#plus');\n\t\t\t\t});\n\t\t\t\tsvg1.addEventListener('click', function() {\n\t\t\t\t\tsvg1.style.display = 'none';\n\t\t\t\t\tsvg2.style.display = 'block';\n\t\t\t\t});\n\n\t\t\t\tsvg2.addEventListener('click', function() {\n\t\t\t\t\tsvg2.style.display = 'none';\n\t\t\t\t\tsvg1.style.display = 'block';\n\t\t\t\t});\n\t\t\t}\n\t\t<\/script>","protected":false},"excerpt":{"rendered":"<p>The interrupt capacity of a circuit breaker is its ability to safely disconnect a faulted circuit by interrupting a short circuit or overload current.&nbsp; This rating is essential for selecting the right breaker for a system, ensuring safety, and preventing damage.&nbsp; Understanding interrupt ratings helps avoid catastrophic failures by matching breakers with fault current levels specific to an electrical installation. What is Interrupt Capacity? Interrupt capacity refers to the maximum amount of fault current that a circuit breaker can safely interrupt without being damaged or posing a hazard to the electrical system.&nbsp; When a short circuit or overload occurs, the breaker\u2019s primary function is to isolate the faulty circuit from the system.&nbsp; If the fault current exceeds the breaker\u2019s interrupt capacity, the breaker may fail to open properly, leading to dangerous conditions like electrical fires or equipment damage. This rating is typically expressed in kiloamperes (kA) and is a crucial factor when selecting circuit breakers.&nbsp; A breaker with a higher interrupt capacity is designed to handle more substantial fault currents.&nbsp; For example, a breaker rated at 10 kA can safely interrupt fault currents up to 10,000 amperes.&nbsp; Choosing a breaker with an appropriate interrupt capacity ensures that, during a fault, the breaker will trip quickly to protect the system, reducing the risk of damage or fire. What Determines a Circuit&#8217;s Capacity? A circuit\u2019s capacity refers to the amount of current it can handle safely without overheating or suffering permanent damage.&nbsp; Several factors determine a circuit&#8217;s capacity, including conductor size, system voltage, breaker type, and overall [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12278,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-12277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is the Interrupt Capacity of a Circuit Breaker? - TOSUNlux Official Site - Electrical Circuit Breaker Manufacturer in China<\/title>\n<meta name=\"description\" content=\"Understanding the interrupt capacity of circuit breakers is vital for the safe operation of electrical systems.\" \/>\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.tosunlux.eu\/fr\/blog\/the-interrupt-capacity-of-circuit-breakers\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the Interrupt Capacity of a Circuit Breaker? - 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