{"id":2174,"date":"2025-08-25T16:52:59","date_gmt":"2025-08-25T08:52:59","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=2174"},"modified":"2025-08-25T16:52:59","modified_gmt":"2025-08-25T08:52:59","slug":"circuit-breaker-vs-surge-protector","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fr\/blog\/circuit-breaker-vs-surge-protector\/","title":{"rendered":"Disjoncteur vs parasurtenseur\u00a0: comprendre les diff\u00e9rences et pourquoi les deux sont importants"},"content":{"rendered":"<h2 data-start=\"417\" data-end=\"434\">Introduction<\/h2>\r\n<p data-start=\"435\" data-end=\"790\">L'une des questions les plus courantes en mati\u00e8re de s\u00e9curit\u00e9 \u00e9lectrique est de savoir si un disjoncteur et un parasurtenseur font le m\u00eame travail. Beaucoup pensent que l\u2019installation de disjoncteurs dans leur maison ou leur \u00e9tablissement \u00e9limine le besoin d\u2019une protection suppl\u00e9mentaire contre les surtensions. La r\u00e9alit\u00e9 est que, m\u00eame si les deux appareils sont essentiels, ils r\u00e9solvent des probl\u00e8mes tr\u00e8s diff\u00e9rents.<\/p>\r\n<p data-start=\"792\" data-end=\"1091\">Les disjoncteurs prot\u00e8gent contre les surintensit\u00e9s et pr\u00e9viennent les incendies, tandis que les parasurtenseurs (SPD) prot\u00e8gent contre les pointes de tension dangereuses qui peuvent d\u00e9truire les composants \u00e9lectroniques sensibles. Comprendre leurs diff\u00e9rences techniques \u2013 et savoir les utiliser ensemble \u2013 est la cl\u00e9 d\u2019une protection \u00e9lectrique fiable.<\/p>\r\n\r\n<h2 data-start=\"1098\" data-end=\"1129\">Qu'est-ce qu'un disjoncteur\u00a0?<\/h2>\r\n<p data-start=\"1130\" data-end=\"1325\">Un disjoncteur est un dispositif de commutation m\u00e9canique con\u00e7u pour interrompre automatiquement le flux de courant excessif. Il prot\u00e8ge les syst\u00e8mes de distribution et le c\u00e2blage contre la surchauffe et les risques d'incendie.<\/p>\r\n<p data-start=\"1327\" data-end=\"1380\"><strong data-start=\"1327\" data-end=\"1378\">Points forts techniques (<a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/23935\/ca5e4a813e6240039cc4809cf729eb41\/IEC-60947-2-2016-AMD1-2019.pdf\" target=\"_blank\" rel=\"noopener\">CEI 60947-2<\/a> \/ CEI 60898)\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1381\" data-end=\"1643\">\r\n \t<li data-start=\"1381\" data-end=\"1458\">\r\n<p data-start=\"1383\" data-end=\"1458\">Courant nominal (In)\u00a0: Le courant continu maximum que le disjoncteur peut transporter.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1459\" data-end=\"1545\">\r\n<p data-start=\"1461\" data-end=\"1545\">Pouvoir de coupure (Icu \/ Ics) : Le courant de d\u00e9faut que le disjoncteur peut interrompre en toute s\u00e9curit\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1546\" data-end=\"1643\">\r\n<p data-start=\"1548\" data-end=\"1643\">Courbes de d\u00e9clenchement (B, C, D) : d\u00e9finissent la sensibilit\u00e9 et le temps de r\u00e9ponse en fonction de l'application.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1645\" data-end=\"1664\"><strong data-start=\"1645\" data-end=\"1662\">Applications\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1665\" data-end=\"1785\">\r\n \t<li data-start=\"1665\" data-end=\"1701\">\r\n<p data-start=\"1667\" data-end=\"1701\">Tableaux de distribution r\u00e9sidentiels.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1702\" data-end=\"1728\">\r\n<p data-start=\"1704\" data-end=\"1728\">Appareillage industriel.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1729\" data-end=\"1785\">\r\n<p data-start=\"1731\" data-end=\"1785\">En amont des syst\u00e8mes UPS, des moteurs ou des gros \u00e9quipements.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1787\" data-end=\"1912\">Les disjoncteurs constituent la premi\u00e8re ligne de d\u00e9fense contre les incendies \u00e9lectriques, mais ne r\u00e9pondent pas aux surtensions transitoires.<\/p>\r\n\r\n<h2 data-start=\"1919\" data-end=\"1956\">Qu'est-ce qu'un parasurtenseur (SPD)\u00a0?<\/h2>\r\n<p data-start=\"1957\" data-end=\"2124\">A <a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"1959\" data-end=\"1992\">Dispositif de protection contre les surtensions (SPD)<\/strong><\/a> est con\u00e7u pour limiter les surtensions transitoires et d\u00e9tourner les courants de surtension en toute s\u00e9curit\u00e9 vers la terre, \u00e9vitant ainsi d'endommager les \u00e9quipements connect\u00e9s.<\/p>\r\n<p data-start=\"2126\" data-end=\"2168\"><strong data-start=\"2126\" data-end=\"2166\">Points forts techniques (<a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/14254\/8f5f6840b7b041818007f3a7d4ed90df\/IEC-61643-11-2011.pdf\" target=\"_blank\" rel=\"noopener\">CEI 61643-11<\/a>):<\/strong><\/p>\r\n\r\n<ul data-start=\"2169\" data-end=\"2422\">\r\n \t<li data-start=\"2169\" data-end=\"2215\">\r\n<p data-start=\"2171\" data-end=\"2215\">Tension de fonctionnement continue maximale (Uc).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2216\" data-end=\"2250\">\r\n<p data-start=\"2218\" data-end=\"2250\">Niveau de protection de tension (haut).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2251\" data-end=\"2313\">\r\n<p data-start=\"2253\" data-end=\"2313\">Courant de d\u00e9charge nominal (In, g\u00e9n\u00e9ralement 5 \u00e0 20 kA 8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2314\" data-end=\"2351\">\r\n<p data-start=\"2316\" data-end=\"2351\">Courant de d\u00e9charge maximal (Imax).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2352\" data-end=\"2422\">\r\n<p data-start=\"2354\" data-end=\"2422\">Temps de r\u00e9ponse\u00a0: de l\u2019ordre de la nanoseconde, beaucoup plus rapide que les disjoncteurs.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2424\" data-end=\"2436\"><strong data-start=\"2424\" data-end=\"2434\">Types\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"2437\" data-end=\"2658\">\r\n \t<li data-start=\"2437\" data-end=\"2512\">\r\n<p data-start=\"2439\" data-end=\"2512\">Type 1\u00a0: Install\u00e9 \u00e0 l\u2019entr\u00e9e du b\u00e2timent, g\u00e8re le courant de foudre partiel.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2513\" data-end=\"2586\">\r\n<p data-start=\"2515\" data-end=\"2586\">Type 2\u00a0:\u00a0install\u00e9 sur les panneaux de distribution, supprime les surtensions r\u00e9siduelles.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2587\" data-end=\"2658\">\r\n<p data-start=\"2589\" data-end=\"2658\">Type 3\u00a0:\u00a0install\u00e9 \u00e0 proximit\u00e9 des appareils, prot\u00e8ge les appareils \u00e9lectroniques sensibles.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2660\" data-end=\"2754\">Les SPD constituent un bouclier contre les \u00e9v\u00e9nements de surtension, ce que les disjoncteurs ne peuvent pas g\u00e9rer.<\/p>\r\n<p data-start=\"2660\" data-end=\"2754\"><a href=\"https:\/\/www.britecelectric.com\/fr\/attachment\/br-20-4p-1type-2-surge-protection-device-jpg-2\/\" rel=\"attachment wp-att-2175\"><img class=\"alignnone  wp-image-2175\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1-1024x1024.webp\" alt=\"\" width=\"781\" height=\"781\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"2761\" data-end=\"2817\">Disjoncteur vs parasurtenseur\u00a0: principales diff\u00e9rences<\/h2>\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Dimension<\/th>\r\n<th>Disjoncteur<\/th>\r\n<th>Protecteur de surtension (SPD)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Principe de protection<\/td>\r\n<td>D\u00e9clenchements sur surintensit\u00e9 ou court-circuit<\/td>\r\n<td>Fixe et d\u00e9tourne les surtensions transitoires<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>D\u00e9fauts typiques trait\u00e9s<\/td>\r\n<td>Surcharge, court-circuit, d\u00e9faut \u00e0 la terre<\/td>\r\n<td>Surtensions de foudre, pics de commutation du r\u00e9seau, charges inductives<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Temps de r\u00e9ponse<\/td>\r\n<td>Millisecondes en secondes<\/td>\r\n<td>Nanosecondes<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Normes<\/td>\r\n<td>CEI 60947-2, CEI 60898<\/td>\r\n<td>CEI 61643-11, UL 1449<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cible de protection principale<\/td>\r\n<td>C\u00e2blage, syst\u00e8mes de distribution<\/td>\r\n<td>\u00c9quipements et \u00e9lectronique sensibles<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Emplacement<\/td>\r\n<td>Install\u00e9 en s\u00e9rie dans des circuits principaux ou de d\u00e9rivation<\/td>\r\n<td>Install\u00e9 en parall\u00e8le, \u00e0 l'entr\u00e9e de service, aux tableaux de distribution ou \u00e0 proximit\u00e9 des charges<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>R\u00e9utilisabilit\u00e9<\/td>\r\n<td>R\u00e9initialisable apr\u00e8s le voyage<\/td>\r\n<td>Modules ou cartouches rempla\u00e7ables apr\u00e8s la fin de vie<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dur\u00e9e de vie<\/td>\r\n<td>Cycles m\u00e9caniques + usure \u00e9lectrique, typiquement &gt;10 000 op\u00e9rations<\/td>\r\n<td>Limit\u00e9 par l'absorption d'\u00e9nergie des surtensions, d\u00e9pend du nombre et de la taille des surtensions<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Applications typiques<\/td>\r\n<td>Maisons, usines, machines industrielles, entr\u00e9es UPS<\/td>\r\n<td>Maisons, centres de donn\u00e9es, syst\u00e8mes de t\u00e9l\u00e9communications, \u00e9quipements d'automatisation<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Co\u00fbt<\/td>\r\n<td>Co\u00fbt d'installation plus \u00e9lev\u00e9, longue dur\u00e9e de vie<\/td>\r\n<td>Co\u00fbt initial inf\u00e9rieur, mais remplacement p\u00e9riodique n\u00e9cessaire<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Mode de d\u00e9faillance<\/td>\r\n<td>Contacts us\u00e9s, d\u00e9clenchement intempestif<\/td>\r\n<td>D\u00e9gradation MOV, d\u00e9connexion thermique, d\u00e9faillance de court-circuit<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"4156\" data-end=\"4285\"><strong data-start=\"4156\" data-end=\"4171\">Aper\u00e7u cl\u00e9<\/strong>: Les disjoncteurs et les parasurtenseurs ne se chevauchent pas, ils se compl\u00e8tent. L'un ne peut pas remplacer l'autre.<\/p>\r\n\r\n<h2 data-start=\"4292\" data-end=\"4352\">Comment les disjoncteurs et les parasurtenseurs fonctionnent ensemble<\/h2>\r\n<p data-start=\"4353\" data-end=\"4431\">Dans un syst\u00e8me \u00e9lectrique correctement con\u00e7u, les SPD et les disjoncteurs sont coordonn\u00e9s.<\/p>\r\n\r\n<ul data-start=\"4433\" data-end=\"4849\">\r\n \t<li data-start=\"4433\" data-end=\"4564\">\r\n<p data-start=\"4435\" data-end=\"4564\">Les SPD sont install\u00e9s apr\u00e8s le disjoncteur principal avec un MCB ou un fusible d\u00e9di\u00e9, garantissant une d\u00e9connexion s\u00fbre en cas de panne du SPD.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4565\" data-end=\"4697\">\r\n<p data-start=\"4567\" data-end=\"4697\">Le disjoncteur prot\u00e8ge le SPD contre les d\u00e9fauts de surintensit\u00e9, tandis que le SPD absorbe les surtensions transitoires auxquelles le disjoncteur ne peut pas r\u00e9agir.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4698\" data-end=\"4849\">\r\n<p data-start=\"4700\" data-end=\"4849\">Le c\u00e2blage doit \u00eatre court (&lt;0,5 m) et \u00e9pais (\u22656 mm\u00b2) pour maintenir une tension r\u00e9siduelle faible. La r\u00e9sistance de mise \u00e0 la terre doit \u00eatre inf\u00e9rieure \u00e0 10 \u03a9 pour une d\u00e9rivation efficace.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"4851\" data-end=\"5225\"><strong data-start=\"4851\" data-end=\"4873\">Exemple pratique\u00a0:<\/strong><br data-start=\"4873\" data-end=\"4876\" \/>Dans les centres de donn\u00e9es prot\u00e9g\u00e9s par UPS, un SPD de type 2 est install\u00e9 en amont du redresseur UPS. Il emp\u00eache les pics de tension d'endommager les composants \u00e9lectroniques et les batteries de l'onduleur. Notre gamme de produits prend en charge cela\u00a0: le SPD SLP40-275\/3S+1 Type 2 fonctionne avec un disjoncteur d\u00e9di\u00e9 BRSCB, tandis que le SPD BR-30FU int\u00e8gre un fusible int\u00e9gr\u00e9 pour les installations compactes.<\/p>\r\n\r\n<h2 data-start=\"5232\" data-end=\"5271\">Id\u00e9es fausses et erreurs courantes<\/h2>\r\n<p data-start=\"5273\" data-end=\"5348\">Au cours de mes ann\u00e9es d'exp\u00e9rience en ing\u00e9nierie, j'ai vu les m\u00eames erreurs se r\u00e9p\u00e9ter\u00a0:<\/p>\r\n\r\n<ol data-start=\"5350\" data-end=\"6629\">\r\n \t<li data-start=\"5350\" data-end=\"5554\">\r\n<p data-start=\"5353\" data-end=\"5554\"><strong data-start=\"5353\" data-end=\"5397\">\u201cMon disjoncteur prot\u00e8ge de la foudre.\u201d<\/strong><br data-start=\"5397\" data-end=\"5400\" \/>Faux. Les disjoncteurs sont con\u00e7us pour le courant et non pour la tension. Lors d\u2019un \u00e9clair, le disjoncteur ne se d\u00e9clenche m\u00eame pas, mais l\u2019\u00e9quipement peut d\u00e9j\u00e0 \u00eatre d\u00e9truit.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5556\" data-end=\"5740\">\r\n<p data-start=\"5559\" data-end=\"5740\"><strong data-start=\"5559\" data-end=\"5599\">\u201cLes SPD peuvent remplacer les disjoncteurs.\u201d<\/strong><br data-start=\"5599\" data-end=\"5602\" \/>FAUX. Un SPD ne peut pas d\u00e9connecter les d\u00e9fauts de surintensit\u00e9. L'installation uniquement du SPD laisse le c\u00e2blage sans protection contre les surcharges ou les courts-circuits.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5742\" data-end=\"5992\">\r\n<p data-start=\"5745\" data-end=\"5992\"><strong data-start=\"5745\" data-end=\"5778\">N\u00e9gliger la protection des sauvegardes.<\/strong><br data-start=\"5778\" data-end=\"5781\" \/>Les SPD doivent avoir un fusible ou un disjoncteur de secours. Sans cela, une d\u00e9faillance de court-circuit du SPD pourrait d\u00e9clencher le disjoncteur principal, provoquant un temps d'arr\u00eat de l'ensemble du panneau. Notre SPD BR-30FU r\u00e9sout ce probl\u00e8me avec un fusible int\u00e9gr\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5994\" data-end=\"6230\">\r\n<p data-start=\"5997\" data-end=\"6230\"><strong data-start=\"5997\" data-end=\"6027\">Mauvaises pratiques de c\u00e2blage.<\/strong><br data-start=\"6027\" data-end=\"6030\" \/>L'utilisation de c\u00e2bles longs (&gt;0,5 m) ou de fils sous-dimensionn\u00e9s (&lt;6 mm\u00b2) augmente la tension r\u00e9siduelle, r\u00e9duisant ainsi l&#039;efficacit\u00e9 de la protection. La norme CEI 61643-11 exige un dimensionnement appropri\u00e9 des conducteurs et une installation sur le chemin le plus court.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6232\" data-end=\"6468\">\r\n<p data-start=\"6235\" data-end=\"6468\"><strong data-start=\"6235\" data-end=\"6265\">Ignorer les limites du cycle de vie.<\/strong><br data-start=\"6265\" data-end=\"6268\" \/>Les SPD bas\u00e9s sur MOV se d\u00e9gradent \u00e0 chaque surtension. Sans inspection p\u00e9riodique, ils peuvent \u00e9chouer silencieusement. Nos produits disposent de fen\u00eatres d'\u00e9tat visuelles et de contacts de signalisation \u00e0 distance pour avertir les \u00e9quipes de maintenance.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6470\" data-end=\"6629\">\r\n<p data-start=\"6473\" data-end=\"6629\"><strong data-start=\"6473\" data-end=\"6492\">Mauvaise mise \u00e0 la terre.<\/strong><br data-start=\"6492\" data-end=\"6495\" \/>Les SPD ne peuvent pas fonctionner avec une r\u00e9sistance de terre \u00e9lev\u00e9e. Les installations sous-estiment souvent la n\u00e9cessit\u00e9 de tester et d\u2019entretenir la mise \u00e0 la terre chaque ann\u00e9e.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<h2 data-start=\"6636\" data-end=\"6677\">Gestion de la maintenance et du cycle de vie<\/h2>\r\n<h3 data-start=\"6679\" data-end=\"6700\">Disjoncteur<\/h3>\r\n<ul data-start=\"6701\" data-end=\"6890\">\r\n \t<li data-start=\"6701\" data-end=\"6769\">\r\n<p data-start=\"6703\" data-end=\"6769\">N\u00e9cessite des tests p\u00e9riodiques pour garantir que les courbes de d\u00e9clenchement restent exactes.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6770\" data-end=\"6837\">\r\n<p data-start=\"6772\" data-end=\"6837\">Remplacez-le si une usure m\u00e9canique est d\u00e9tect\u00e9e apr\u00e8s des d\u00e9clenchements fr\u00e9quents.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6838\" data-end=\"6890\">\r\n<p data-start=\"6840\" data-end=\"6890\">Contr\u00f4les annuels de la r\u00e9sistance d'isolation recommand\u00e9s.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"6892\" data-end=\"6919\">Protecteur de surtension (SPD)<\/h3>\r\n<ul data-start=\"6920\" data-end=\"7483\">\r\n \t<li data-start=\"6920\" data-end=\"7004\">\r\n<p data-start=\"6922\" data-end=\"7004\"><strong data-start=\"6922\" data-end=\"6939\">Contr\u00f4les visuels<\/strong>: Inspectez r\u00e9guli\u00e8rement les fen\u00eatres indicatrices (vert = OK, rouge = \u00e9chec).<\/p>\r\n<\/li>\r\n \t<li data-start=\"7005\" data-end=\"7117\">\r\n<p data-start=\"7007\" data-end=\"7117\"><strong data-start=\"7007\" data-end=\"7028\">Surveillance \u00e0 distance<\/strong>: Utilisez des SPD avec des contacts de signalisation \u00e0 int\u00e9grer dans les syst\u00e8mes de gestion de b\u00e2timent (BMS).<\/p>\r\n<\/li>\r\n \t<li data-start=\"7118\" data-end=\"7243\">\r\n<p data-start=\"7120\" data-end=\"7243\"><strong data-start=\"7120\" data-end=\"7138\">Compteurs de surtensions<\/strong>: Des appareils comme le BRSC-01 enregistrent chaque \u00e9v\u00e9nement de surtension, aidant ainsi les ing\u00e9nieurs \u00e0 pr\u00e9dire quand un remplacement est n\u00e9cessaire.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7244\" data-end=\"7371\">\r\n<p data-start=\"7246\" data-end=\"7371\"><strong data-start=\"7246\" data-end=\"7269\">Remplacement modulaire<\/strong>: Nos s\u00e9ries SLP et BR utilisent des cartouches enfichables, ce qui rend le remplacement s\u00fbr et rapide sans rec\u00e2blage.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7372\" data-end=\"7483\">\r\n<p data-start=\"7374\" data-end=\"7483\"><strong data-start=\"7374\" data-end=\"7392\">Tests annuels<\/strong>: V\u00e9rifiez la r\u00e9sistance de terre et confirmez que les modules SPD restent dans leurs limites de conception.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"7485\" data-end=\"7601\">Des parafoudres bien entretenus garantissent que les installations restent prot\u00e9g\u00e9es contre les surtensions pendant des ann\u00e9es sans interruption inattendue.<\/p>\r\n\r\n<h2 data-start=\"7608\" data-end=\"7635\">Lequel avez-vous besoin\u00a0?<\/h2>\r\n<p data-start=\"7637\" data-end=\"7695\">Voici la conclusion faisant autorit\u00e9 : vous avez besoin des deux.<\/p>\r\n\r\n<ul data-start=\"7697\" data-end=\"7925\">\r\n \t<li data-start=\"7697\" data-end=\"7808\">\r\n<p data-start=\"7699\" data-end=\"7808\">Un disjoncteur est obligatoire pour tout syst\u00e8me \u00e9lectrique, car il pr\u00e9vient les incendies caus\u00e9s par une surintensit\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7809\" data-end=\"7925\">\r\n<p data-start=\"7811\" data-end=\"7925\">A <a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"7813\" data-end=\"7838\">parasurtenseur (SPD)<\/strong> <\/a>est fortement recommand\u00e9 pour se prot\u00e9ger contre les surtensions que les disjoncteurs ne peuvent pas arr\u00eater.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"7927\" data-end=\"7959\"><strong data-start=\"7927\" data-end=\"7957\">Recommandations pratiques :<\/strong><\/p>\r\n\r\n<ul data-start=\"7960\" data-end=\"8375\">\r\n \t<li data-start=\"7960\" data-end=\"8066\">\r\n<p data-start=\"7962\" data-end=\"8066\"><strong data-start=\"7962\" data-end=\"7983\">Maisons d'habitation<\/strong>: Disjoncteur principal + SPD de type 2 dans le tableau de distribution pour prot\u00e9ger les appareils \u00e9lectrom\u00e9nagers.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8067\" data-end=\"8170\">\r\n<p data-start=\"8069\" data-end=\"8170\"><strong data-start=\"8069\" data-end=\"8094\">Installations industrielles<\/strong>: Disjoncteurs + SPD de type 1+2 pour prot\u00e9ger les moteurs, les automates et les syst\u00e8mes d'automatisation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8171\" data-end=\"8273\">\r\n<p data-start=\"8173\" data-end=\"8273\"><strong data-start=\"8173\" data-end=\"8205\">Centres de donn\u00e9es et syst\u00e8mes UPS<\/strong>: Disjoncteurs + SPD Type 2 en amont de l'onduleur + SPD Type 3 \u00e0 proximit\u00e9 des serveurs.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8274\" data-end=\"8375\">\r\n<p data-start=\"8276\" data-end=\"8375\"><strong data-start=\"8276\" data-end=\"8301\">Installations compactes<\/strong>: Utilisez des solutions int\u00e9gr\u00e9es comme le SPD BR-30FU avec fusibles int\u00e9gr\u00e9s.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"8377\" data-end=\"8442\">La strat\u00e9gie de protection la plus fiable est une d\u00e9fense \u00e0 plusieurs niveaux\u00a0:<\/p>\r\n\r\n<ul data-start=\"8443\" data-end=\"8590\">\r\n \t<li data-start=\"8443\" data-end=\"8478\">\r\n<p data-start=\"8445\" data-end=\"8478\">Les disjoncteurs pr\u00e9viennent les incendies.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8479\" data-end=\"8502\">\r\n<p data-start=\"8481\" data-end=\"8502\">Les SPD absorbent les surtensions.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8503\" data-end=\"8590\">\r\n<p data-start=\"8505\" data-end=\"8590\">Ensemble, ils offrent une protection compl\u00e8te aux personnes, aux syst\u00e8mes et aux \u00e9quipements.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8597\" data-end=\"8612\">Conclusion<\/h2>\r\n<p data-start=\"8613\" data-end=\"8973\">Un disjoncteur et un parasurtenseur ne sont pas interchangeables. Bien qu\u2019ils soient con\u00e7us pour diff\u00e9rents risques (surcharges de courant et surtensions), ils fonctionnent mieux ensemble. Le respect des normes internationales, l\u2019utilisation d\u2019appareils coordonn\u00e9s et une maintenance appropri\u00e9e vous aideront \u00e0 construire un syst\u00e8me \u00e9lectrique r\u00e9silient qui prot\u00e9gera \u00e0 la fois l\u2019infrastructure et l\u2019\u00e9lectronique.<\/p>\r\n<p data-start=\"8975\" data-end=\"9304\">Notre gamme de produits, conforme aux <a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/14254\/8f5f6840b7b041818007f3a7d4ed90df\/IEC-61643-11-2011.pdf\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"9008\" data-end=\"9024\">CEI 61643-11<\/strong><\/a> et <a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/23935\/ca5e4a813e6240039cc4809cf729eb41\/IEC-60947-2-2016-AMD1-2019.pdf\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"9029\" data-end=\"9044\">CEI 60947-2<\/strong><\/a>, propose des solutions \u00e9prouv\u00e9es\u00a0: SPD coordonn\u00e9s, disjoncteurs de surtension int\u00e9gr\u00e9s et conceptions modulaires qui simplifient l'installation et la maintenance. Avec des disjoncteurs et des parasurtenseurs en place, vous pouvez avoir l\u2019esprit tranquille pour votre syst\u00e8me \u00e9lectrique.<\/p>","protected":false},"featured_media":2175,"parent":0,"menu_order":122,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-2174","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"I am news summary","txt":"<h2 data-start=\"417\" data-end=\"434\">Introduction<\/h2>\r\n<p data-start=\"435\" data-end=\"790\">One of the most common questions in electrical safety is whether a circuit breaker vs surge protector do the same job. Many believe that installing circuit breakers in their home or facility eliminates the need for additional protection against surges. The reality is that while both devices are essential, they solve very different problems.<\/p>\r\n<p data-start=\"792\" data-end=\"1091\">Circuit breakers protect against overcurrent and prevent fires, while surge protectors (SPDs) guard against dangerous voltage spikes that can destroy sensitive electronics. Understanding their technical differences\u2014and knowing how to use them together\u2014is the key to reliable electrical protection.<\/p>\r\n\r\n<h2 data-start=\"1098\" data-end=\"1129\">What Is a Circuit Breaker?<\/h2>\r\n<p data-start=\"1130\" data-end=\"1325\">A circuit breaker is a mechanical switching device designed to automatically interrupt excessive current flow. It protects distribution systems and wiring from overheating and fire hazards.<\/p>\r\n<p data-start=\"1327\" data-end=\"1380\"><strong data-start=\"1327\" data-end=\"1378\">Technical highlights (<a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/23935\/ca5e4a813e6240039cc4809cf729eb41\/IEC-60947-2-2016-AMD1-2019.pdf\" target=\"_blank\" rel=\"noopener\">IEC 60947-2<\/a> \/ IEC 60898):<\/strong><\/p>\r\n\r\n<ul data-start=\"1381\" data-end=\"1643\">\r\n \t<li data-start=\"1381\" data-end=\"1458\">\r\n<p data-start=\"1383\" data-end=\"1458\">Rated Current (In): The maximum continuous current the breaker can carry.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1459\" data-end=\"1545\">\r\n<p data-start=\"1461\" data-end=\"1545\">Breaking Capacity (Icu \/ Ics): The fault current the breaker can safely interrupt.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1546\" data-end=\"1643\">\r\n<p data-start=\"1548\" data-end=\"1643\">Trip Curves (B, C, D): Define the sensitivity and response time depending on the application.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1645\" data-end=\"1664\"><strong data-start=\"1645\" data-end=\"1662\">Applications:<\/strong><\/p>\r\n\r\n<ul data-start=\"1665\" data-end=\"1785\">\r\n \t<li data-start=\"1665\" data-end=\"1701\">\r\n<p data-start=\"1667\" data-end=\"1701\">Residential distribution panels.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1702\" data-end=\"1728\">\r\n<p data-start=\"1704\" data-end=\"1728\">Industrial switchgear.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1729\" data-end=\"1785\">\r\n<p data-start=\"1731\" data-end=\"1785\">Upstream of UPS systems, motors, or large equipment.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1787\" data-end=\"1912\">Circuit breakers are the first line of defense against electrical fires but do not respond to transient voltage surges.<\/p>\r\n\r\n<h2 data-start=\"1919\" data-end=\"1956\">What Is a Surge Protector (SPD)?<\/h2>\r\n<p data-start=\"1957\" data-end=\"2124\">A <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"1959\" data-end=\"1992\">Surge Protective Device (SPD)<\/strong><\/a> is designed to limit transient overvoltages and divert surge currents safely to ground, preventing damage to connected equipment.<\/p>\r\n<p data-start=\"2126\" data-end=\"2168\"><strong data-start=\"2126\" data-end=\"2166\">Technical highlights (<a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/14254\/8f5f6840b7b041818007f3a7d4ed90df\/IEC-61643-11-2011.pdf\" target=\"_blank\" rel=\"noopener\">IEC 61643-11<\/a>):<\/strong><\/p>\r\n\r\n<ul data-start=\"2169\" data-end=\"2422\">\r\n \t<li data-start=\"2169\" data-end=\"2215\">\r\n<p data-start=\"2171\" data-end=\"2215\">Maximum Continuous Operating Voltage (Uc).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2216\" data-end=\"2250\">\r\n<p data-start=\"2218\" data-end=\"2250\">Voltage Protection Level (Up).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2251\" data-end=\"2313\">\r\n<p data-start=\"2253\" data-end=\"2313\">Nominal Discharge Current (In, typically 5\u201320 kA 8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2314\" data-end=\"2351\">\r\n<p data-start=\"2316\" data-end=\"2351\">Maximum Discharge Current (Imax).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2352\" data-end=\"2422\">\r\n<p data-start=\"2354\" data-end=\"2422\">Response Time: In the nanosecond range, much faster than breakers.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2424\" data-end=\"2436\"><strong data-start=\"2424\" data-end=\"2434\">Types:<\/strong><\/p>\r\n\r\n<ul data-start=\"2437\" data-end=\"2658\">\r\n \t<li data-start=\"2437\" data-end=\"2512\">\r\n<p data-start=\"2439\" data-end=\"2512\">Type 1: Installed at building entry, handles partial lightning current.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2513\" data-end=\"2586\">\r\n<p data-start=\"2515\" data-end=\"2586\">Type 2: Installed at distribution panels, suppresses residual surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2587\" data-end=\"2658\">\r\n<p data-start=\"2589\" data-end=\"2658\">Type 3: Installed near end devices, protects sensitive electronics.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2660\" data-end=\"2754\">SPDs are the shield against overvoltage events\u2014something circuit breakers cannot handle.<\/p>\r\n<p data-start=\"2660\" data-end=\"2754\"><a href=\"https:\/\/www.britecelectric.com\/attachment\/br-20-4p-1type-2-surge-protection-device-jpg-2\/\" rel=\"attachment wp-att-2175\"><img class=\"alignnone  wp-image-2175\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1-1024x1024.webp\" alt=\"\" width=\"781\" height=\"781\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"2761\" data-end=\"2817\">Circuit Breaker vs Surge Protector: Key Differences<\/h2>\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Dimension<\/th>\r\n<th>Circuit Breaker<\/th>\r\n<th>Surge Protector (SPD)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Protection Principle<\/td>\r\n<td>Trips on overcurrent or short circuit<\/td>\r\n<td>Clamps and diverts transient overvoltage<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Typical Faults Handled<\/td>\r\n<td>Overload, short circuit, ground fault<\/td>\r\n<td>Lightning surges, grid switching spikes, inductive loads<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Response Time<\/td>\r\n<td>Milliseconds to seconds<\/td>\r\n<td>Nanoseconds<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Standards<\/td>\r\n<td>IEC 60947-2, IEC 60898<\/td>\r\n<td>IEC 61643-11, UL 1449<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Main Protection Target<\/td>\r\n<td>Wiring, distribution systems<\/td>\r\n<td>Sensitive equipment and electronics<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Location<\/td>\r\n<td>Installed in series within main or branch circuits<\/td>\r\n<td>Installed in parallel, at service entry, distribution boards, or near loads<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Reusability<\/td>\r\n<td>Resettable after trip<\/td>\r\n<td>Replaceable modules or cartridges after end-of-life<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Lifespan<\/td>\r\n<td>Mechanical cycles + electrical wear, typically &gt;10,000 ops<\/td>\r\n<td>Limited by surge energy absorption, depends on number and size of surges<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Typical Applications<\/td>\r\n<td>Homes, factories, industrial machinery, UPS inputs<\/td>\r\n<td>Homes, data centers, telecom systems, automation equipment<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cost<\/td>\r\n<td>Higher installation cost, long lifespan<\/td>\r\n<td>Lower initial cost, but periodic replacement needed<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Failure Mode<\/td>\r\n<td>Worn contacts, nuisance tripping<\/td>\r\n<td>MOV degradation, thermal disconnection, short-circuit failure<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"4156\" data-end=\"4285\"><strong data-start=\"4156\" data-end=\"4171\">Key insight<\/strong>: Circuit breakers and surge protectors do not overlap\u2014they complement each other. One cannot replace the other.<\/p>\r\n\r\n<h2 data-start=\"4292\" data-end=\"4352\">How Circuit Breakers and Surge Protectors Work Together<\/h2>\r\n<p data-start=\"4353\" data-end=\"4431\">In a properly designed electrical system, SPDs and breakers are coordinated.<\/p>\r\n\r\n<ul data-start=\"4433\" data-end=\"4849\">\r\n \t<li data-start=\"4433\" data-end=\"4564\">\r\n<p data-start=\"4435\" data-end=\"4564\">SPDs are installed after the main breaker with a dedicated MCB or fuse, ensuring safe disconnection in case of SPD failure.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4565\" data-end=\"4697\">\r\n<p data-start=\"4567\" data-end=\"4697\">The breaker shields the SPD against overcurrent faults, while the SPD absorbs transient surges that the breaker cannot react to.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4698\" data-end=\"4849\">\r\n<p data-start=\"4700\" data-end=\"4849\">Wiring should be short (&lt;0.5 m) and thick (\u22656 mm\u00b2) to keep residual voltage low. Grounding resistance should be below 10 \u03a9 for effective diversion.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"4851\" data-end=\"5225\"><strong data-start=\"4851\" data-end=\"4873\">Practical example:<\/strong><br data-start=\"4873\" data-end=\"4876\" \/>In UPS-protected data centers, a Type 2 SPD is installed upstream of the UPS rectifier. It prevents voltage spikes from damaging UPS electronics and batteries. Our product line supports this: the SLP40-275\/3S+1 Type 2 SPD works with a BRSCB dedicated breaker, while the BR-30FU SPD integrates a built-in fuse for compact installations.<\/p>\r\n\r\n<h2 data-start=\"5232\" data-end=\"5271\">Common Misconceptions and Mistakes<\/h2>\r\n<p data-start=\"5273\" data-end=\"5348\">From years of engineering experience, I\u2019ve seen the same errors repeated:<\/p>\r\n\r\n<ol data-start=\"5350\" data-end=\"6629\">\r\n \t<li data-start=\"5350\" data-end=\"5554\">\r\n<p data-start=\"5353\" data-end=\"5554\"><strong data-start=\"5353\" data-end=\"5397\">\u201cMy breaker protects against lightning.\u201d<\/strong><br data-start=\"5397\" data-end=\"5400\" \/>Wrong. Breakers are designed for current, not voltage. During a lightning surge, the breaker won\u2019t even trip, but equipment may already be destroyed.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5556\" data-end=\"5740\">\r\n<p data-start=\"5559\" data-end=\"5740\"><strong data-start=\"5559\" data-end=\"5599\">\u201cSPDs can replace circuit breakers.\u201d<\/strong><br data-start=\"5599\" data-end=\"5602\" \/>False. An SPD cannot disconnect overcurrent faults. Installing only SPD leaves wiring unprotected against overload or short circuits.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5742\" data-end=\"5992\">\r\n<p data-start=\"5745\" data-end=\"5992\"><strong data-start=\"5745\" data-end=\"5778\">Neglecting backup protection.<\/strong><br data-start=\"5778\" data-end=\"5781\" \/>SPDs must have a backup fuse or breaker. Without it, an SPD short-circuit failure could trip the main breaker, causing downtime for the entire panel. Our BR-30FU SPD solves this with an integrated fuse.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5994\" data-end=\"6230\">\r\n<p data-start=\"5997\" data-end=\"6230\"><strong data-start=\"5997\" data-end=\"6027\">Improper wiring practices.<\/strong><br data-start=\"6027\" data-end=\"6030\" \/>Using long leads (&gt;0.5 m) or undersized wires (&lt;6 mm\u00b2) increases residual voltage, reducing protection effectiveness. IEC 61643-11 requires proper conductor sizing and shortest path installation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6232\" data-end=\"6468\">\r\n<p data-start=\"6235\" data-end=\"6468\"><strong data-start=\"6235\" data-end=\"6265\">Ignoring lifecycle limits.<\/strong><br data-start=\"6265\" data-end=\"6268\" \/>MOV-based SPDs degrade with every surge. Without periodic inspection, they may silently fail. Our products feature visual status windows and remote signaling contacts to notify maintenance teams.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6470\" data-end=\"6629\">\r\n<p data-start=\"6473\" data-end=\"6629\"><strong data-start=\"6473\" data-end=\"6492\">Poor grounding.<\/strong><br data-start=\"6492\" data-end=\"6495\" \/>SPDs cannot function with high earth resistance. Facilities often underestimate the need to test and maintain grounding annually.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<h2 data-start=\"6636\" data-end=\"6677\">Maintenance and Lifecycle Management<\/h2>\r\n<h3 data-start=\"6679\" data-end=\"6700\">Circuit Breaker<\/h3>\r\n<ul data-start=\"6701\" data-end=\"6890\">\r\n \t<li data-start=\"6701\" data-end=\"6769\">\r\n<p data-start=\"6703\" data-end=\"6769\">Requires periodic testing to ensure trip curves remain accurate.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6770\" data-end=\"6837\">\r\n<p data-start=\"6772\" data-end=\"6837\">Replace if mechanical wear is detected after frequent tripping.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6838\" data-end=\"6890\">\r\n<p data-start=\"6840\" data-end=\"6890\">Annual insulation resistance checks recommended.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"6892\" data-end=\"6919\">Surge Protector (SPD)<\/h3>\r\n<ul data-start=\"6920\" data-end=\"7483\">\r\n \t<li data-start=\"6920\" data-end=\"7004\">\r\n<p data-start=\"6922\" data-end=\"7004\"><strong data-start=\"6922\" data-end=\"6939\">Visual checks<\/strong>: Inspect indicator windows regularly (green = OK, red = fail).<\/p>\r\n<\/li>\r\n \t<li data-start=\"7005\" data-end=\"7117\">\r\n<p data-start=\"7007\" data-end=\"7117\"><strong data-start=\"7007\" data-end=\"7028\">Remote monitoring<\/strong>: Use SPDs with signaling contacts to integrate into building management systems (BMS).<\/p>\r\n<\/li>\r\n \t<li data-start=\"7118\" data-end=\"7243\">\r\n<p data-start=\"7120\" data-end=\"7243\"><strong data-start=\"7120\" data-end=\"7138\">Surge counters<\/strong>: Devices like BRSC-01 log every surge event, helping engineers predict when replacement is needed.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7244\" data-end=\"7371\">\r\n<p data-start=\"7246\" data-end=\"7371\"><strong data-start=\"7246\" data-end=\"7269\">Modular replacement<\/strong>: Our SLP and BR series use pluggable cartridges, making replacement safe and fast without rewiring.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7372\" data-end=\"7483\">\r\n<p data-start=\"7374\" data-end=\"7483\"><strong data-start=\"7374\" data-end=\"7392\">Annual testing<\/strong>: Verify earth resistance and confirm that SPD modules remain within their design limits.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"7485\" data-end=\"7601\">Well-maintained SPDs ensure that facilities remain protected against surges for years without unexpected downtime.<\/p>\r\n\r\n<h2 data-start=\"7608\" data-end=\"7635\">Which One Do You Need?<\/h2>\r\n<p data-start=\"7637\" data-end=\"7695\">Here is the authoritative conclusion: You need both.<\/p>\r\n\r\n<ul data-start=\"7697\" data-end=\"7925\">\r\n \t<li data-start=\"7697\" data-end=\"7808\">\r\n<p data-start=\"7699\" data-end=\"7808\">A circuit breaker is mandatory for every electrical system, as it prevents fires caused by overcurrent.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7809\" data-end=\"7925\">\r\n<p data-start=\"7811\" data-end=\"7925\">A <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"7813\" data-end=\"7838\">surge protector (SPD)<\/strong> <\/a>is strongly recommended to protect against voltage surges that breakers cannot stop.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"7927\" data-end=\"7959\"><strong data-start=\"7927\" data-end=\"7957\">Practical recommendations:<\/strong><\/p>\r\n\r\n<ul data-start=\"7960\" data-end=\"8375\">\r\n \t<li data-start=\"7960\" data-end=\"8066\">\r\n<p data-start=\"7962\" data-end=\"8066\"><strong data-start=\"7962\" data-end=\"7983\">Residential homes<\/strong>: Main breaker + Type 2 SPD in the distribution board to protect home appliances.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8067\" data-end=\"8170\">\r\n<p data-start=\"8069\" data-end=\"8170\"><strong data-start=\"8069\" data-end=\"8094\">Industrial facilities<\/strong>: Breakers + Type 1+2 SPD to protect motors, PLCs, and automation systems.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8171\" data-end=\"8273\">\r\n<p data-start=\"8173\" data-end=\"8273\"><strong data-start=\"8173\" data-end=\"8205\">Data centers and UPS systems<\/strong>: Breakers + Type 2 SPD upstream of UPS + Type 3 SPD near servers.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8274\" data-end=\"8375\">\r\n<p data-start=\"8276\" data-end=\"8375\"><strong data-start=\"8276\" data-end=\"8301\">Compact installations<\/strong>: Use integrated solutions like the BR-30FU SPD with built-in fuses.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"8377\" data-end=\"8442\">The most reliable protection strategy is a layered defense:<\/p>\r\n\r\n<ul data-start=\"8443\" data-end=\"8590\">\r\n \t<li data-start=\"8443\" data-end=\"8478\">\r\n<p data-start=\"8445\" data-end=\"8478\">Circuit breakers prevent fires.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8479\" data-end=\"8502\">\r\n<p data-start=\"8481\" data-end=\"8502\">SPDs absorb surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8503\" data-end=\"8590\">\r\n<p data-start=\"8505\" data-end=\"8590\">Together, they deliver comprehensive protection for people, systems, and equipment.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8597\" data-end=\"8612\">Conclusion<\/h2>\r\n<p data-start=\"8613\" data-end=\"8973\">A circuit breaker and a surge protector are not interchangeable. Although they are designed for different risks \u2014 current overloads and voltage surges \u2014 they work best together. Following international standards, using coordinated devices and performing proper maintenance will help you build a resilient electrical system that will safeguard both infrastructure and electronics.<\/p>\r\n<p data-start=\"8975\" data-end=\"9304\">Our product line, compliant with <a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/14254\/8f5f6840b7b041818007f3a7d4ed90df\/IEC-61643-11-2011.pdf\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"9008\" data-end=\"9024\">IEC 61643-11<\/strong><\/a> and <a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/23935\/ca5e4a813e6240039cc4809cf729eb41\/IEC-60947-2-2016-AMD1-2019.pdf\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"9029\" data-end=\"9044\">IEC 60947-2<\/strong><\/a>, provides proven solutions: coordinated SPDs, integrated surge breakers, and modular designs that simplify installation and maintenance. With both circuit breakers and surge protectors in place, you can achieve true peace of mind for your electrical system.<\/p>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog\/2174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media\/2175"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media?parent=2174"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog_category?post=2174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}