{"id":50839,"date":"2026-05-26T11:26:45","date_gmt":"2026-05-26T11:26:45","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=50839"},"modified":"2026-08-14T09:39:10","modified_gmt":"2026-08-14T09:39:10","slug":"dimensionnements-standard-des-disjoncteurs","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/","title":{"rendered":"Guide complet des dimensions standard des disjoncteurs"},"content":{"rendered":"<p>Le dimensionnement des disjoncteurs standard influe directement sur l&#039;agencement des armoires \u00e9lectriques et la conformit\u00e9 des projets. Face aux diff\u00e9rentes intensit\u00e9s nominales, dimensions et normes r\u00e9gionales, comment choisir le disjoncteur adapt\u00e9\u00a0? Cet article vous aidera \u00e0 comprendre les principales sp\u00e9cifications et les diff\u00e9rences dimensionnelles des divers disjoncteurs, simplifiant ainsi le processus de s\u00e9lection et de conception.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 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\" style=\"cursor:inherit\">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=\"Basculer la 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' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#What_Are_Standard_Circuit_Breaker_Sizes\" >Quelles sont les tailles standard des disjoncteurs ?<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Standard_Circuit_Breaker_Sizes_by_Type\" >Dimensionnement standard des disjoncteurs par type<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#MCB_Sizes\" >Tailles des disjoncteurs miniatures<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#MCCB_Frame_Sizes\" >Dimensions des ch\u00e2ssis MCCB<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#ACB_Industrial_Breaker_Sizes\" >Dimensionnement des disjoncteurs industriels ACB<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Circuit_Breaker_Sizes_by_Amperage_and_Frame_Rating\" >Dimensionnement des disjoncteurs selon l&#039;amp\u00e9rage et le calibre<\/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.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Standard_Breaker_Sizes_by_Voltage_and_Region\" >Dimensionnement standard des disjoncteurs par tension et r\u00e9gion<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Breaker_Sizes_for_Common_Industrial_Voltage_Systems\" >Dimensionnement des disjoncteurs pour les syst\u00e8mes de tension industriels courants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Size_Specifications_of_Different_Regional_Standards\" >Sp\u00e9cifications dimensionnelles des diff\u00e9rentes normes r\u00e9gionales<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Circuit_Breaker_Dimensions_and_Installation_Space_Requirements\" >Dimensions et espace d&#039;installation requis pour le disjoncteur<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Are_Circuit_Breakers_Compliant_with_IEC_and_UL_Standards_Exchangeable_in_Terms_of_Size_and_Specifications\" >Les disjoncteurs sont-ils conformes aux normes CEI et UL et interchangeables en termes de taille et de sp\u00e9cifications\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Can_the_Cabinet_Design_Be_Used_with_Circuit_Breakers_of_Different_AF_Frame_Sizes\" >La conception de l&#039;armoire peut-elle \u00eatre utilis\u00e9e avec des disjoncteurs de tailles de ch\u00e2ssis AF diff\u00e9rentes\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Is_the_Impact_of_a_Circuit_Breakers_Frame_Size_on_the_Cabinet_Width_Fixed\" >L&#039;impact de la taille du ch\u00e2ssis d&#039;un disjoncteur sur la largeur de l&#039;armoire est-il fixe\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#What_Procedure_Should_Be_Followed_to_Identify_the_Proper_Circuit_Breaker_Frame_Size_for_a_Project\" >Quelle proc\u00e9dure suivre pour identifier la taille appropri\u00e9e du disjoncteur pour un projet\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#What_Are_the_Main_Variations_in_General_Layout_Design_for_MCBS_MCCBS_and_ACBS\" >Quelles sont les principales variations dans la conception g\u00e9n\u00e9rale de l&#039;agencement des syst\u00e8mes MCBS, MCCBS et ACBS\u00a0?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/fr\/standard-circuit-breaker-sizes\/#Final_Thought\" >Derni\u00e8re r\u00e9flexion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Are_Standard_Circuit_Breaker_Sizes\"><\/span>Quelles sont les tailles standard des disjoncteurs ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50844\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/What-Are-Standard-Circuit-Breaker-Sizes.jpg\" alt=\"Quelles sont les tailles standard des disjoncteurs\u00a0?\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/What-Are-Standard-Circuit-Breaker-Sizes.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/What-Are-Standard-Circuit-Breaker-Sizes-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/What-Are-Standard-Circuit-Breaker-Sizes-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/What-Are-Standard-Circuit-Breaker-Sizes-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>Les dimensions standard des disjoncteurs ne se d\u00e9finissent pas uniquement par leur apparence. Elles d\u00e9pendent \u00e9galement de divers param\u00e8tres de compatibilit\u00e9. Lors du choix d&#039;un mod\u00e8le, ne vous fiez pas uniquement \u00e0 l&#039;amp\u00e9rage. Ses dimensions, le nombre de p\u00f4les et les dimensions de montage auront tous une incidence sur l&#039;agencement de votre armoire \u00e9lectrique.<\/p>\n<p>Voici les principaux param\u00e8tres de r\u00e9f\u00e9rence\u00a0:<\/p>\n<table width=\"601\">\n<tbody>\n<tr>\n<td width=\"167\"><strong>Param\u00e8tre<\/strong><\/td>\n<td width=\"434\"><strong>R\u00f4le structurel du cabinet<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"167\"><strong>Calibre en amp\u00e8res<\/strong><\/td>\n<td width=\"434\"><a href=\"https:\/\/wiring-harness.com\/a-practical-guide-to-choosing-the-right-wire-gauge-standards-and-mistakes-to-avoid\/\">calibre du fil<\/a>, les borniers et l&#039;espace de ventilation.<\/td>\n<\/tr>\n<tr>\n<td width=\"167\"><strong>Taille du cadre<\/strong><\/td>\n<td width=\"434\">Dimensions physiques du ch\u00e2ssis, de la zone de la plaque de montage principale et des limites de l&#039;ouverture de la porte.<\/td>\n<\/tr>\n<tr>\n<td width=\"167\"><strong>Configuration des poteaux<\/strong><\/td>\n<td width=\"434\">Espacement horizontal, longueur du rail DIN et disposition du fond de panier.<\/td>\n<\/tr>\n<tr>\n<td width=\"167\"><strong>Tension nominale<\/strong><\/td>\n<td width=\"434\">Distance de s\u00e9curit\u00e9 entre phases, limite d&#039;isolation et d\u00e9gagement entre phases<\/td>\n<\/tr>\n<tr>\n<td width=\"167\"><strong>Dimensions de montage<\/strong><\/td>\n<td width=\"434\">Profil de profondeur du bo\u00eetier, emplacements des supports structurels et sch\u00e9mas de per\u00e7age de la t\u00f4le.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>En comparant tous les param\u00e8tres pertinents, vous pouvez am\u00e9liorer la pr\u00e9cision de votre conception. Cela vous orientera \u00e9galement vers d&#039;autres consid\u00e9rations dimensionnelles et vous aidera \u00e0 prouver que la conception r\u00e9pond aux besoins pratiques du projet.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Standard_Circuit_Breaker_Sizes_by_Type\"><\/span>Dimensionnement standard des disjoncteurs par type<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50845\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Circuit-Breaker-Sizes-by-Type.jpg\" alt=\"Dimensionnement standard des disjoncteurs par type\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Circuit-Breaker-Sizes-by-Type.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Circuit-Breaker-Sizes-by-Type-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Circuit-Breaker-Sizes-by-Type-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Circuit-Breaker-Sizes-by-Type-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"MCB_Sizes\"><\/span>Tailles des disjoncteurs miniatures<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Si votre projet concerne principalement les circuits de d\u00e9rivation et la commande d&#039;\u00e9quipements, vous utiliserez le plus souvent des disjoncteurs miniatures (MCB) aux sp\u00e9cifications et dimensions adapt\u00e9es. Ces disjoncteurs sont compacts. Dans l&#039;industrie, ils sont g\u00e9n\u00e9ralement mont\u00e9s en rang\u00e9es denses sur des rails DIN, avec une disposition horizontale couramment adopt\u00e9e \u00e0 l&#039;int\u00e9rieur des installations. <a href=\"https:\/\/www.kdmsteel.com\/fr\/fabricant-de-boitiers-electriques-sur-mesure\/\">enceintes<\/a>.<\/p>\n<p>Lors de la conception d&#039;armoires \u00e9lectriques, ces composants n&#039;imposent pratiquement aucune contrainte de profondeur. L&#039;accent est mis sur l&#039;horizontalit\u00e9. En revanche, pour les armoires multicircuits, il est essentiel de tenir compte de la largeur totale occup\u00e9e par une rang\u00e9e compl\u00e8te de disjoncteurs. Ceci influe directement sur l&#039;agencement des d\u00e9coupes et l&#039;allocation de l&#039;espace interne.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"MCCB_Frame_Sizes\"><\/span>Dimensions des ch\u00e2ssis MCCB<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lorsqu&#039;on passe \u00e0 la distribution d&#039;\u00e9nergie ou aux applications \u00e0 charge moyenne \u00e0 \u00e9lev\u00e9e, la disposition interne de l&#039;armoire se d\u00e9place naturellement vers le niveau du disjoncteur.<\/p>\n<p>Compar\u00e9 aux disjoncteurs miniatures, ce type d&#039;\u00e9quipement occupe un espace d&#039;installation plus clairement d\u00e9fini. L&#039;espace n\u00e9cessaire au cheminement des c\u00e2bles et aux barres omnibus est \u00e9galement accru, et le zonage fonctionnel \u00e0 l&#039;int\u00e9rieur de l&#039;armoire devient plus distinct.<\/p>\n<p>\u00c0 ce stade, l&#039;agencement des armoires est g\u00e9n\u00e9ralement organis\u00e9 autour du <a href=\"https:\/\/sincede.com\/a-simple-guide-to-understanding-mccb-frame-sizes\/\">Taille du cadre MCCB<\/a>, La r\u00e9partition des panneaux de montage et l&#039;allocation de la largeur de l&#039;armoire sont r\u00e9alis\u00e9es simultan\u00e9ment. Pour les armoires \u00e9lectriques industrielles et les \u00e9quipements d&#039;alimentation OEM, ce niveau correspond \u00e0 une transition d&#039;une structure compacte vers une configuration plus fonctionnelle.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ACB_Industrial_Breaker_Sizes\"><\/span>Dimensionnement des disjoncteurs industriels ACB<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dans les syst\u00e8mes d&#039;alimentation primaire ou les grands r\u00e9seaux de distribution \u00e9lectrique industriels, les disjoncteurs sont g\u00e9n\u00e9ralement le point de r\u00e9f\u00e9rence cl\u00e9 pour la conception des armoires.<\/p>\n<p>Ces disjoncteurs sont plus volumineux et de conception plus complexe. Leur encombrement influe directement sur l&#039;agencement g\u00e9n\u00e9ral. Lors du choix d&#039;un disjoncteur, il convient d&#039;adapter la structure de l&#039;armoire \u00e9lectrique \u00e0 ses dimensions. La profondeur de l&#039;armoire, l&#039;acc\u00e8s pour la maintenance et la disposition des barres omnibus doivent \u00eatre planifi\u00e9s en fonction des dimensions du disjoncteur. Les composants amovibles et les d\u00e9gagements n\u00e9cessaires \u00e0 son fonctionnement doivent \u00e9galement \u00eatre pris en compte.<\/p>\n<p>Dans de nombreux projets de distribution \u00e9lectrique \u00e0 grande \u00e9chelle, l&#039;agencement interne de l&#039;armoire est souvent con\u00e7u \u00e0 partir des sp\u00e9cifications du disjoncteur principal et s&#039;\u00e9tend vers l&#039;ext\u00e9rieur \u00e0 partir de l\u00e0.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Circuit_Breaker_Sizes_by_Amperage_and_Frame_Rating\"><\/span>Dimensionnement des disjoncteurs selon l&#039;amp\u00e9rage et le calibre<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50846\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Sizes-by-Amperage-and-Frame-Rating.jpg\" alt=\"Dimensionnement des disjoncteurs selon l&#039;amp\u00e9rage et le calibre\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Sizes-by-Amperage-and-Frame-Rating.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Sizes-by-Amperage-and-Frame-Rating-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Sizes-by-Amperage-and-Frame-Rating-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Sizes-by-Amperage-and-Frame-Rating-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>Lors de la conception d&#039;un coffret de disjoncteur, l&#039;amp\u00e9rage nominal et les dimensions du ch\u00e2ssis sont les deux principaux facteurs d\u00e9terminants. L&#039;amp\u00e9rage nominal d\u00e9termine la capacit\u00e9 de charge, tandis que les dimensions du ch\u00e2ssis influent directement sur l&#039;encombrement de l&#039;\u00e9quipement.<\/p>\n<p>Un seul format de ch\u00e2ssis peut accueillir plusieurs intensit\u00e9s nominales, avec un impact minime sur les dimensions de l&#039;armoire. Lors de la conception de l&#039;armoire, il convient de d\u00e9terminer d&#039;abord le format du ch\u00e2ssis, puis de s\u00e9lectionner l&#039;intensit\u00e9 nominale. Voir le tableau ci-dessous pour plus de d\u00e9tails\u00a0:<\/p>\n<table width=\"601\">\n<tbody>\n<tr>\n<td width=\"103\"><strong>\u00c9valuation de la trame<\/strong><\/td>\n<td width=\"103\"><strong>Plage d&#039;amp\u00e9rage typique<\/strong><\/td>\n<td width=\"171\"><strong>Dimensions de montage<\/strong><\/td>\n<td width=\"224\"><strong>Consid\u00e9rations de conception et notes pratiques<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"103\">125AF<\/td>\n<td width=\"103\">15\u2013125A<\/td>\n<td width=\"171\">Conception compacte, compatible avec les rails DIN standard<\/td>\n<td width=\"224\">Id\u00e9al pour les configurations \u00e0 haute densit\u00e9\u00a0; la mise en place pr\u00e9alable de la structure puis la configuration de l\u2019alimentation \u00e9lectrique permettent d\u2019\u00e9viter la plupart des probl\u00e8mes d\u2019installation.<\/td>\n<\/tr>\n<tr>\n<td width=\"103\">250AF<\/td>\n<td width=\"103\">100\u2013250 A<\/td>\n<td width=\"171\">Zone de montage standard<\/td>\n<td width=\"224\">Il est compatible avec les circuits d&#039;alimentation conventionnels et peut \u00eatre mis en \u0153uvre \u00e0 l&#039;aide d&#039;une configuration standard.<\/td>\n<\/tr>\n<tr>\n<td width=\"103\">400AF<\/td>\n<td width=\"103\">250\u2013400A<\/td>\n<td width=\"171\">N\u00e9cessite un espace de montage d\u00e9di\u00e9<\/td>\n<td width=\"224\">Pr\u00e9voyez un espace suffisant pour la dissipation de la chaleur\u00a0; le choix d\u2019un ch\u00e2ssis inadapt\u00e9 aura une incidence directe sur l\u2019assemblage de l\u2019\u00e9quipement.<\/td>\n<\/tr>\n<tr>\n<td width=\"103\">630AF<\/td>\n<td width=\"103\">400\u2013630A<\/td>\n<td width=\"171\">Install\u00e9 dans des compartiments ind\u00e9pendants<\/td>\n<td width=\"224\">Optimisation de la conception du r\u00e9seau de barres omnibus\u00a0; les erreurs dimensionnelles peuvent augmenter le co\u00fbt des modifications d&#039;armoires<\/td>\n<\/tr>\n<tr>\n<td width=\"103\">800AF et plus<\/td>\n<td width=\"103\">700+A<\/td>\n<td width=\"171\">Dot\u00e9 de compartiments s\u00e9par\u00e9s<\/td>\n<td width=\"224\">Le plus souvent utilis\u00e9 dans les alimentations et les circuits principaux\u00a0; un mauvais choix n\u00e9cessite g\u00e9n\u00e9ralement de refaire la t\u00f4le.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Standard_Breaker_Sizes_by_Voltage_and_Region\"><\/span>Dimensionnement standard des disjoncteurs par tension et r\u00e9gion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50847\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Breaker-Sizes-by-Voltage-and-Region.jpg\" alt=\"Dimensionnement standard des disjoncteurs par tension et r\u00e9gion\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Breaker-Sizes-by-Voltage-and-Region.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Breaker-Sizes-by-Voltage-and-Region-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Breaker-Sizes-by-Voltage-and-Region-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Standard-Breaker-Sizes-by-Voltage-and-Region-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>Les normes \u00e9lectriques en vigueur dans les diff\u00e9rents pays et r\u00e9gions influent directement sur la tension nominale, le pouvoir de coupure et les exigences d&#039;installation des disjoncteurs. Dans le cadre de vos projets \u00e0 l&#039;\u00e9tranger, la tension n&#039;est pas qu&#039;un simple param\u00e8tre \u00e9lectrique\u00a0; elle constitue \u00e9galement une dimension essentielle de la conformit\u00e9 du projet.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Breaker_Sizes_for_Common_Industrial_Voltage_Systems\"><\/span>Dimensionnement des disjoncteurs pour les syst\u00e8mes de tension industriels courants<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Le dimensionnement, les dimensions et les exigences de conception des disjoncteurs varient en fonction des conditions de tension. Voici les principaux cas d&#039;application\u00a0:<\/p>\n<ul>\n<li>230 V \/ 400 V (norme CEI)<\/li>\n<\/ul>\n<p>Largement utilis\u00e9 dans les secteurs r\u00e9sidentiel, commercial et industriel \u00e0 petite \u00e9chelle. Les principaux disjoncteurs utilis\u00e9s sont les microdisjoncteurs et les disjoncteurs moul\u00e9s, et l&#039;agencement des armoires est g\u00e9n\u00e9ralement modulaire.<\/p>\n<ul>\n<li>480 V (norme industrielle nord-am\u00e9ricaine)<\/li>\n<\/ul>\n<p>Principalement utilis\u00e9s dans les syst\u00e8mes d&#039;alimentation \u00e9lectrique et d&#039;\u00e9quipement des usines, ces syst\u00e8mes n\u00e9cessitent un pouvoir de coupure en court-circuit plus \u00e9lev\u00e9. Les disjoncteurs moul\u00e9s sont privil\u00e9gi\u00e9s.<\/p>\n<ul>\n<li>600 V (Norme nord-am\u00e9ricaine \/ industrie lourde)<\/li>\n<\/ul>\n<p>Adapt\u00e9s aux machines lourdes, aux mines, \u00e0 l&#039;\u00e9nergie et \u00e0 d&#039;autres applications, ces produits n\u00e9cessitent des indices d&#039;isolation et un pouvoir de coupure plus \u00e9lev\u00e9s, ainsi que des dimensions globales plus importantes et un espacement de montage plus large.<\/p>\n<ul>\n<li>690 V (Norme d&#039;extension industrielle CEI)<\/li>\n<\/ul>\n<p>Couramment utilis\u00e9s dans les syst\u00e8mes de distribution d&#039;\u00e9nergie et de commande de moteurs industriels \u00e0 grande \u00e9chelle, les disjoncteurs haut de gamme \u00e0 bo\u00eetier moul\u00e9 et les disjoncteurs \u00e0 cadre sont les applications les plus fr\u00e9quentes. Les exigences de zonage des coffrets sont plus strictes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Size_Specifications_of_Different_Regional_Standards\"><\/span>Sp\u00e9cifications dimensionnelles des diff\u00e9rentes normes r\u00e9gionales<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lors du choix d&#039;une solution pour des projets interr\u00e9gionaux, il convient de tenir compte des priorit\u00e9s de conception des diff\u00e9rents syst\u00e8mes\u00a0:<\/p>\n<ul>\n<li>Syst\u00e8me CEI (Europe, Moyen-Orient et Asie)<\/li>\n<\/ul>\n<p>L&#039;accent est mis sur un concept modulaire et une structure de montage universelle sur rail DIN, avec des dimensions de composants hautement standardis\u00e9es qui facilitent un conditionnement dense.<\/p>\n<ul>\n<li>Syst\u00e8me UL (Am\u00e9rique du Nord)<\/li>\n<\/ul>\n<p>Le syst\u00e8me vise \u00e0 \u00e9valuer le pouvoir de coupure et les niveaux de certification des produits. \u00c0 amp\u00e9rage \u00e9gal, les dimensions et les sp\u00e9cifications de montage de l&#039;\u00e9quipement sont soumises \u00e0 des normes sp\u00e9cifiques.<\/p>\n<ul>\n<li>Code national de l&#039;\u00e9lectricit\u00e9 (NEC)<\/li>\n<\/ul>\n<p>Cette norme impose des exigences strictes en mati\u00e8re de d\u00e9gagements d&#039;installation et de d\u00e9tails de construction sur site. Lors de la planification de l&#039;espace pour les armoires, il est imp\u00e9ratif de respecter scrupuleusement la r\u00e9glementation relative aux d\u00e9gagements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Circuit_Breaker_Dimensions_and_Installation_Space_Requirements\"><\/span>Dimensions et espace d&#039;installation requis pour le disjoncteur<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50848\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Dimensions-and-Installation-Space-Requirements.jpg\" alt=\"Dimensions et espace d&#039;installation requis pour le disjoncteur\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Dimensions-and-Installation-Space-Requirements.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Dimensions-and-Installation-Space-Requirements-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Dimensions-and-Installation-Space-Requirements-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Circuit-Breaker-Dimensions-and-Installation-Space-Requirements-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<ul>\n<li>D\u00e9gagement d&#039;installation<\/li>\n<\/ul>\n<p>Les disjoncteurs de grande taille emp\u00eachent le compactage des coffrets possible avec des mod\u00e8les plus petits. Il est n\u00e9cessaire de pr\u00e9voir un d\u00e9gagement lat\u00e9ral suffisant pour faciliter la dissipation de la chaleur, l&#039;installation et les r\u00e9glages ult\u00e9rieurs.<\/p>\n<ul>\n<li>Espace de disposition des barres omnibus<\/li>\n<\/ul>\n<p>\u00c0 mesure que la taille des disjoncteurs augmente, la surface des barres omnibus s&#039;accro\u00eet g\u00e9n\u00e9ralement elle aussi. Lors du dimensionnement des armoires \u00e9lectriques, il convient de prendre en compte simultan\u00e9ment l&#039;espacement entre phases et l&#039;espace n\u00e9cessaire aux connexions des barres omnibus afin d&#039;\u00e9viter toute surcharge dans l&#039;agencement interne ult\u00e9rieur.<\/p>\n<ul>\n<li>Zone de cheminement des c\u00e2bles<\/li>\n<\/ul>\n<p>Les disjoncteurs de forte capacit\u00e9 sont g\u00e9n\u00e9ralement associ\u00e9s \u00e0 des c\u00e2bles de forte section. Lors de la conception, il est essentiel de bien prendre en compte le rayon de courbure des c\u00e2bles et de pr\u00e9voir une profondeur d&#039;armoire suffisante pour garantir un cheminement ais\u00e9 des c\u00e2bles.<\/p>\n<ul>\n<li>Espace d&#039;exploitation et de maintenance<\/li>\n<\/ul>\n<p>Il convient g\u00e9n\u00e9ralement de pr\u00e9voir un espace de man\u0153uvre et de maintenance de base devant le disjoncteur principal. Cela facilite l&#039;ouverture et la fermeture du disjoncteur, les op\u00e9rations de maintenance et le remplacement ult\u00e9rieur des composants.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Are_Circuit_Breakers_Compliant_with_IEC_and_UL_Standards_Exchangeable_in_Terms_of_Size_and_Specifications\"><\/span>Les disjoncteurs sont-ils conformes aux normes CEI et UL et interchangeables en termes de taille et de sp\u00e9cifications\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ces appareils ne sont pas compatibles. Les appareils IEC se montent sur rail DIN standard et ont des dimensions uniformes. Les produits UL sont soumis \u00e0 des exigences de certification. M\u00eame pour une m\u00eame intensit\u00e9 nominale, leurs dimensions et leurs points de fixation diff\u00e8rent.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_the_Cabinet_Design_Be_Used_with_Circuit_Breakers_of_Different_AF_Frame_Sizes\"><\/span>La conception de l&#039;armoire peut-elle \u00eatre utilis\u00e9e avec des disjoncteurs de tailles de ch\u00e2ssis AF diff\u00e9rentes\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nous d\u00e9conseillons l&#039;application directe. Les disjoncteurs de 125 AF en coffrets compacts permettent une installation dense. Au-del\u00e0 de 400 AF, un espace d\u00e9di\u00e9 est n\u00e9cessaire pour la dissipation de la chaleur et l&#039;installation. Pour les disjoncteurs de 800 AF et plus, un compartiment s\u00e9par\u00e9 est indispensable. Chaque calibre requiert une configuration sp\u00e9cifique.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_the_Impact_of_a_Circuit_Breakers_Frame_Size_on_the_Cabinet_Width_Fixed\"><\/span>L&#039;impact de la taille du ch\u00e2ssis d&#039;un disjoncteur sur la largeur de l&#039;armoire est-il fixe\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Non, ce n&#039;est pas fixe. La taille du ch\u00e2ssis d\u00e9termine l&#039;espacement \u00e9lectrique minimal entre les phases, mais la largeur finale de l&#039;armoire d\u00e9pend \u00e9galement du jeu de barres et de la disposition du c\u00e2blage, ainsi que des normes r\u00e9gionales.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_Procedure_Should_Be_Followed_to_Identify_the_Proper_Circuit_Breaker_Frame_Size_for_a_Project\"><\/span>Quelle proc\u00e9dure suivre pour identifier la taille appropri\u00e9e du disjoncteur pour un projet\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nous vous recommandons de mesurer d&#039;abord la largeur et la profondeur disponibles du panneau de montage, puis de choisir la taille de cadre correspondante. Cette m\u00e9thode permet d&#039;\u00e9viter les probl\u00e8mes lors de l&#039;installation et des modifications ult\u00e9rieures du bo\u00eetier.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_Are_the_Main_Variations_in_General_Layout_Design_for_MCBS_MCCBS_and_ACBS\"><\/span>Quelles sont les principales variations dans la conception g\u00e9n\u00e9rale de l&#039;agencement des syst\u00e8mes MCBS, MCCBS et ACBS\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Les disjoncteurs miniatures (MCB) sont principalement con\u00e7us en tenant compte de leur largeur\u00a0; les disjoncteurs \u00e0 bo\u00eete de vitesses (MCCB) doivent \u00e9quilibrer la largeur de l\u2019armoire, l\u2019espace des barres omnibus et le cheminement des c\u00e2bles\u00a0; les disjoncteurs \u00e0 bo\u00eete de vitesses (ACB) n\u00e9cessitent une attention particuli\u00e8re \u00e0 la profondeur de l\u2019armoire, \u00e0 l\u2019acc\u00e8s pour la maintenance et aux zones fonctionnelles.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thought\"><\/span>Derni\u00e8re r\u00e9flexion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50850\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Final-Thought-2.jpg\" alt=\"Derni\u00e8re r\u00e9flexion\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Final-Thought-2.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Final-Thought-2-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Final-Thought-2-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/05\/Final-Thought-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>Choisir le bon disjoncteur ne se limite pas aux seules sp\u00e9cifications \u00e9lectriques. Il faut \u00e9galement s&#039;assurer que l&#039;\u00e9quipement est adapt\u00e9 \u00e0 la structure de l&#039;armoire et \u00e0 l&#039;espace disponible pour son installation. KDM se fera un plaisir de concevoir pour vous des armoires ferm\u00e9es sur mesure, compatibles avec tous les disjoncteurs. Votre projet se d\u00e9roulera ainsi sans encombre.<a href=\"https:\/\/www.kdmsteel.com\/fr\/contact\/\">Contactez-nous<\/a> aujourd&#039;hui.<\/p>","protected":false},"excerpt":{"rendered":"<p>Standard circuit breaker sizes directly impact the layout of electrical cabinets and project compliance. Given these different current ratings, frame sizes, and different regional codes, how do you know which size is right? This article will help you understand the key specifications and dimensional differences among various circuit breakers, making the selection and design process [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":50842,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50839","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Complete Guide to Standard Circuit Breaker Sizes - KDM Steel<\/title>\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.kdmsteel.com\/fr\/dimensionnements-standard-des-disjoncteurs\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Complete Guide to Standard Circuit Breaker Sizes - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"Standard circuit breaker sizes directly impact the layout of electrical cabinets and project compliance. Given these different current ratings, frame sizes, and different regional codes, how do you know which size is right? 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