{"id":2168,"date":"2025-08-25T14:14:41","date_gmt":"2025-08-25T06:14:41","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=2168"},"modified":"2025-08-25T14:16:42","modified_gmt":"2025-08-25T06:16:42","slug":"ups-vs-ups-with-surge-protection-which-one-should-you-choose","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fr\/blog\/ups-vs-ups-with-surge-protection-which-one-should-you-choose\/","title":{"rendered":"UPS vs UPS avec protection contre les surtensions\u00a0: lequel choisir\u00a0?"},"content":{"rendered":"<h2 data-start=\"240\" data-end=\"257\">Introduction<\/h2>\r\n<p data-start=\"258\" data-end=\"631\">Dans le monde interconnect\u00e9 d\u2019aujourd\u2019hui, o\u00f9 m\u00eame quelques secondes d\u2019arr\u00eat peuvent perturber les op\u00e9rations critiques, une protection \u00e9lectrique fiable est devenue essentielle. Deux solutions courantes dominent ce domaine\u00a0: l'alimentation sans interruption (UPS) et l'onduleur avec protection contre les surtensions. Bien que beaucoup supposent qu\u2019un UPS offre \u00e0 lui seul une protection compl\u00e8te, la r\u00e9alit\u00e9 est plus complexe.<\/p>\r\n<p data-start=\"633\" data-end=\"1212\">Un UPS assure principalement la continuit\u00e9 de l'alimentation pendant les pannes, tandis que les dispositifs de protection contre les surtensions (SPD) prot\u00e8gent contre les surtensions transitoires caus\u00e9es par la foudre, la commutation du r\u00e9seau ou les perturbations des \u00e9quipements. Choisir entre un onduleur standard et un onduleur avec protection int\u00e9gr\u00e9e contre les surtensions n\u00e9cessite de comprendre leurs r\u00f4les, leurs atouts et leurs limites. Cet article compare les deux options, met en \u00e9vidence les aspects techniques de la protection contre les surtensions et montre comment la combinaison d'un onduleur avec des SPD hautes performances,tels que ceux fabriqu\u00e9s par notre soci\u00e9t\u00e9, cr\u00e9e la solution la plus fiable.<\/p>\r\n\r\n<h2 data-start=\"1219\" data-end=\"1247\">Qu'est-ce qu'un onduleur standard\u00a0?<\/h2>\r\n<p data-start=\"1248\" data-end=\"1504\">A <strong data-start=\"1250\" data-end=\"1266\">ASI standard<\/strong> est con\u00e7u pour maintenir l'\u00e9quipement op\u00e9rationnel pendant les pannes de courant, les creux de tension ou les baisses de tension. En stockant l'\u00e9nergie dans des batteries et en la convertissant instantan\u00e9ment en courant alternatif utilisable, un UPS garantit un fonctionnement fluide en cas de panne de la source d'alimentation principale.<\/p>\r\n<p data-start=\"1506\" data-end=\"1549\">Il existe trois types d'onduleurs largement utilis\u00e9s\u00a0:<\/p>\r\n\r\n<ul data-start=\"1551\" data-end=\"2138\">\r\n \t<li data-start=\"1551\" data-end=\"1714\">\r\n<p data-start=\"1553\" data-end=\"1714\"><strong data-start=\"1553\" data-end=\"1578\">UPS en veille (hors ligne)<\/strong>: Offre le niveau de sauvegarde le plus basique, passant \u00e0 l\u2019alimentation par batterie en cas de panne. Il convient aux \u00e9quipements de la maison ou des petits bureaux.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1715\" data-end=\"1882\">\r\n<p data-start=\"1717\" data-end=\"1882\"><strong data-start=\"1717\" data-end=\"1741\">UPS interactif en ligne<\/strong>: Ajoute une r\u00e9gulation de tension, prot\u00e9geant contre les sous-tensions et les surtensions sans passer \u00e0 l'alimentation par batterie, ce qui prolonge la dur\u00e9e de vie de la batterie.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1883\" data-end=\"2138\">\r\n<p data-start=\"1885\" data-end=\"2138\"><strong data-start=\"1885\" data-end=\"1917\">UPS \u00e0 double conversion en ligne<\/strong>: Fournit une conversion continue du courant alternatif vers le courant continu et de retour vers le courant alternatif, garantissant une alimentation stable, propre et isol\u00e9e. Il est utilis\u00e9 dans des environnements critiques tels que les centres de donn\u00e9es, les h\u00f4pitaux et l'automatisation industrielle.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2140\" data-end=\"2439\">Malgr\u00e9 ces avantages, un UPS standard ne garantit pas une protection compl\u00e8te contre les surtensions \u00e0 haute \u00e9nergie. Alors que la plupart des onduleurs incluent un filtrage minimal des surtensions, souvent via de petits MOV, ces composants ne peuvent pas r\u00e9sister \u00e0 l'ampleur des surtensions provoqu\u00e9es par la foudre ou par des \u00e9v\u00e9nements de commutation dans les syst\u00e8mes \u00e9lectriques.<\/p>\r\n\r\n<h2 data-start=\"2446\" data-end=\"2487\">Qu'est-ce qu'un UPS avec protection contre les surtensions\u00a0?<\/h2>\r\n<p data-start=\"2488\" data-end=\"2793\">Un UPS avec protection contre les surtensions int\u00e8gre une fonctionnalit\u00e9 limit\u00e9e de suppression des surtensions directement dans le syst\u00e8me UPS. Ces mod\u00e8les combinent une alimentation de secours avec des parafoudres int\u00e9gr\u00e9s bas\u00e9s sur MOV, leur permettant de supprimer les surtensions mineures et les pics de tension en plus de fournir une alimentation continue pendant les pannes.<\/p>\r\n<p data-start=\"2795\" data-end=\"2981\">Cette double fonctionnalit\u00e9 les rend pratiques pour les environnements tels que les bureaux \u00e0 domicile, les r\u00e9seaux informatiques des petites entreprises ou l'\u00e9lectronique grand public o\u00f9 l'espace et la rentabilit\u00e9 sont des priorit\u00e9s.<\/p>\r\n<p data-start=\"2983\" data-end=\"3454\">Il est cependant important de reconna\u00eetre les limites de cette int\u00e9gration. La protection contre les surtensions au sein de ces unit\u00e9s UPS est g\u00e9n\u00e9ralement con\u00e7ue pour les petits transitoires, souvent de l'ordre de quelques centaines de joules. Ils ne peuvent pas remplacer un dispositif de protection contre les surtensions d\u00e9di\u00e9 de type 1 ou de type 2 conforme aux <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"3278\" data-end=\"3294\">CEI 61643-11<\/strong><\/a>. Pour les zones expos\u00e9es \u00e0 de fr\u00e9quentes activit\u00e9s de foudre ou \u00e0 des applications industrielles sensibles, s'appuyer uniquement sur cette fonction int\u00e9gr\u00e9e rend l'\u00e9quipement vuln\u00e9rable.<\/p>\r\n<p data-start=\"2983\" data-end=\"3454\"><a href=\"https:\/\/www.britecelectric.com\/fr\/attachment\/chatgpt-image-2025825-14-10-54\/\" rel=\"attachment wp-att-2169\"><img class=\"alignnone wp-image-2169\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/ChatGPT-Image-2025\u5e748\u670825\u65e5-14_10_54.png\" alt=\"UPS vs UPS avec protection contre les surtensions\" width=\"975\" height=\"650\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"3461\" data-end=\"3521\">UPS vs UPS avec protection contre les surtensions \u2013 Comparaison technique<\/h2>\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Fonctionnalit\u00e9<\/th>\r\n<th>ASI standard<\/th>\r\n<th>UPS avec protection contre les surtensions<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Alimentation de secours<\/td>\r\n<td>Fournit une alimentation continue pendant les pannes<\/td>\r\n<td>Fournit une alimentation continue pendant les pannes<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Suppression des surtensions<\/td>\r\n<td>Filtrage minimal, pas suffisant pour les fortes surtensions<\/td>\r\n<td>Les MOV int\u00e9gr\u00e9s prot\u00e8gent contre les petites surtensions et les pics<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Protection contre la foudre<\/td>\r\n<td>N\u00e9cessite un SPD externe<\/td>\r\n<td>N\u00e9cessite toujours un SPD externe<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Niveau de protection (augment\u00e9)<\/td>\r\n<td>G\u00e9n\u00e9ralement &gt;2,0 kV<\/td>\r\n<td>G\u00e9n\u00e9ralement 1,5 \u00e0 2,0 kV<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Co\u00fbt<\/td>\r\n<td>Inf\u00e9rieur<\/td>\r\n<td>L\u00e9g\u00e8rement plus \u00e9lev\u00e9<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Applications<\/td>\r\n<td>Continuit\u00e9 des donn\u00e9es et protection contre les pannes<\/td>\r\n<td>Petits syst\u00e8mes informatiques avec des besoins de base en mati\u00e8re de protection contre les surtensions<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"4173\" data-end=\"4395\">Un UPS avec protection contre les surtensions est plus pratique pour les environnements \u00e0 faible consommation, mais il ne peut pas fournir le niveau de d\u00e9fense requis pour les \u00e9v\u00e9nements de surtension \u00e0 haute \u00e9nergie. Pour les installations critiques, un SPD externe reste indispensable.<\/p>\r\n\r\n<h2 data-start=\"4402\" data-end=\"4455\">Pourquoi UPS seul ne suffit pas pour la protection contre les surtensions<\/h2>\r\n<p data-start=\"4456\" data-end=\"4711\">Les surtensions \u00e9lectriques peuvent atteindre des amplitudes sup\u00e9rieures \u00e0 20 kV et 5 kA, niveaux qui d\u00e9passent de loin la tol\u00e9rance du filtre de surtension interne de tout onduleur. S'appuyer uniquement sur un UPS pour la suppression des surtensions expose \u00e0 la fois l'UPS lui-m\u00eame et l'\u00e9quipement connect\u00e9 \u00e0 de s\u00e9rieux risques.<\/p>\r\n<p data-start=\"4713\" data-end=\"4799\">Selon la norme CEI 61643-11, les performances des SPD sont d\u00e9finies par plusieurs param\u00e8tres\u00a0:<\/p>\r\n\r\n<ul data-start=\"4801\" data-end=\"5233\">\r\n \t<li data-start=\"4801\" data-end=\"4915\">\r\n<p data-start=\"4803\" data-end=\"4915\"><strong data-start=\"4803\" data-end=\"4849\">Uc (tension de fonctionnement continue maximale)\u00a0:<\/strong> La tension efficace la plus \u00e9lev\u00e9e qu'un SPD peut supporter sans fonctionner.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4916\" data-end=\"5017\">\r\n<p data-start=\"4918\" data-end=\"5017\"><strong data-start=\"4918\" data-end=\"4952\">Haut (niveau de protection contre la tension)\u00a0:<\/strong> La tension r\u00e9siduelle est transmise \u00e0 l'\u00e9quipement lors d'un \u00e9v\u00e9nement de surtension.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5018\" data-end=\"5121\">\r\n<p data-start=\"5020\" data-end=\"5121\"><strong data-start=\"5020\" data-end=\"5055\">In (courant de d\u00e9charge nominal)\u00a0:<\/strong> La capacit\u00e9 du SPD \u00e0 g\u00e9rer des surtensions r\u00e9p\u00e9t\u00e9es (forme d\u2019onde 8\/20 \u03bcs).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5122\" data-end=\"5233\">\r\n<p data-start=\"5124\" data-end=\"5233\"><strong data-start=\"5124\" data-end=\"5161\">Imax (courant de d\u00e9charge maximal)\u00a0:<\/strong> Le courant de surtension maximum que le SPD peut supporter une fois sans panne.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5235\" data-end=\"5455\">Par exemple, nos SPD mont\u00e9s sur rail DIN de type 2 sont con\u00e7us pour des courants de d\u00e9charge nominaux allant jusqu'\u00e0 20 \u00e0 40 kA et des tensions r\u00e9siduelles inf\u00e9rieures \u00e0 1,5 kV, offrant une protection bien plus robuste que n'importe quel filtre de surtension UPS int\u00e9gr\u00e9.<\/p>\r\n\r\n<h2 data-start=\"5462\" data-end=\"5515\">Meilleure pratique\u00a0: UPS avec combinaison SPD externe<\/h2>\r\n<p data-start=\"5516\" data-end=\"5693\">L'approche la plus fiable n'est pas de choisir entre UPS et SPD, mais de les combiner. Une strat\u00e9gie \u00e0 plusieurs niveaux garantit que la continuit\u00e9 de l\u2019alimentation \u00e9lectrique et la protection contre les surtensions sont prises en compte.<\/p>\r\n\r\n<ol data-start=\"5695\" data-end=\"6645\">\r\n \t<li data-start=\"5695\" data-end=\"6022\">\r\n<p data-start=\"5698\" data-end=\"5778\"><a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-1-lightning-surge-protection-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"5698\" data-end=\"5712\">SPD de type 1<\/strong><\/a> \u2013 Install\u00e9 \u00e0 l\u2019entr\u00e9e de service ou au panneau de distribution principal.<\/p>\r\n\r\n<ul data-start=\"5782\" data-end=\"6022\">\r\n \t<li data-start=\"5782\" data-end=\"5845\">\r\n<p data-start=\"5784\" data-end=\"5845\">Prot\u00e8ge contre les surtensions \u00e0 haute \u00e9nergie caus\u00e9es par la foudre.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5849\" data-end=\"6022\">\r\n<p data-start=\"5851\" data-end=\"6022\">Notre SPD FLP25-275\/3S+1 est sp\u00e9cialement con\u00e7u pour les syst\u00e8mes triphas\u00e9s TN-S et TT, avec une capacit\u00e9 Iimp de 25 kA par p\u00f4le, ce qui le rend id\u00e9al pour la protection entrante.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"6024\" data-end=\"6339\">\r\n<p data-start=\"6027\" data-end=\"6073\"><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=\"6027\" data-end=\"6041\">Parafoudre de type 2<\/strong><\/a> \u2013 Install\u00e9 \u00e0 l'entr\u00e9e de l'onduleur.<\/p>\r\n\r\n<ul data-start=\"6077\" data-end=\"6339\">\r\n \t<li data-start=\"6077\" data-end=\"6166\">\r\n<p data-start=\"6079\" data-end=\"6166\">Prot\u00e8ge le redresseur et l'onduleur UPS des surtensions de commutation et des transitoires du secteur.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6170\" data-end=\"6339\">\r\n<p data-start=\"6172\" data-end=\"6339\">Notre SPD SLP40-275\/3S+1 fournit un courant de d\u00e9charge nominal jusqu'\u00e0 20 kA et un courant de d\u00e9charge maximum jusqu'\u00e0 40 kA, garantissant une coordination fiable avec les syst\u00e8mes UPS.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"6341\" data-end=\"6645\">\r\n<p data-start=\"6344\" data-end=\"6394\"><a href=\"https:\/\/www.britecelectric.com\/fr\/product_category\/type-3-surge-protector\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"6344\" data-end=\"6358\">SPD de type 3<\/strong><\/a> \u2013 Install\u00e9 \u00e0 proximit\u00e9 de charges sensibles.<\/p>\r\n\r\n<ul data-start=\"6398\" data-end=\"6645\">\r\n \t<li data-start=\"6398\" data-end=\"6503\">\r\n<p data-start=\"6400\" data-end=\"6503\">Prot\u00e8ge les PC, les serveurs, les routeurs et les \u00e9quipements m\u00e9dicaux des surtensions r\u00e9siduelles apr\u00e8s une protection en amont.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6507\" data-end=\"6645\">\r\n<p data-start=\"6509\" data-end=\"6645\">Nos SPD enfichables compacts de type 3 offrent de faibles tensions de serrage et des temps de r\u00e9ponse rapides, garantissant la s\u00e9curit\u00e9 des appareils au niveau de l'utilisateur final.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"6647\" data-end=\"6838\">En combinant les UPS et les SPD de cette mani\u00e8re en cascade, les utilisateurs b\u00e9n\u00e9ficient d'un fonctionnement ininterrompu lors des pannes de courant tout en garantissant une protection compl\u00e8te contre les surtensions de toutes ampleurs.<\/p>\r\n\r\n<h2 data-start=\"6845\" data-end=\"6873\">Applications du monde r\u00e9el<\/h2>\r\n<ul data-start=\"6874\" data-end=\"7697\">\r\n \t<li data-start=\"6874\" data-end=\"7088\">\r\n<p data-start=\"6876\" data-end=\"7088\"><strong data-start=\"6876\" data-end=\"6902\">Maison et petits bureaux<\/strong>: Un UPS avec protection contre les surtensions int\u00e9gr\u00e9e peut fournir une protection pratique, mais l'ajout d'un SPD de type 2 mont\u00e9 sur panneau prolonge la dur\u00e9e de vie de l'\u00e9quipement et r\u00e9duit le risque de perturbations du secteur.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7089\" data-end=\"7286\">\r\n<p data-start=\"7091\" data-end=\"7286\"><strong data-start=\"7091\" data-end=\"7107\">Centres de donn\u00e9es<\/strong>: Les syst\u00e8mes UPS en ligne \u00e0 double conversion combin\u00e9s aux SPD de type 1 et de type 2 sont essentiels pour assurer \u00e0 la fois la continuit\u00e9 et une protection robuste contre la foudre et les surtensions de commutation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7287\" data-end=\"7480\">\r\n<p data-start=\"7289\" data-end=\"7480\"><strong data-start=\"7289\" data-end=\"7314\">\u00c9tablissements de sant\u00e9<\/strong>: Les \u00e9quipements critiques tels que les syst\u00e8mes d'imagerie et les machines de survie n\u00e9cessitent une disponibilit\u00e9 garantie de la part de l'onduleur, tandis que les SPD assurent la protection contre les surtensions dangereuses.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7481\" data-end=\"7697\">\r\n<p data-start=\"7483\" data-end=\"7697\"><strong data-start=\"7483\" data-end=\"7508\">Automatisation industrielle<\/strong>: Les automates programmables, les variateurs de vitesse et les capteurs sont tr\u00e8s vuln\u00e9rables aux surtensions provoqu\u00e9es par les commutations et la foudre \u00e0 proximit\u00e9. La combinaison d'un UPS avec des SPD de qualit\u00e9 industrielle garantit la fiabilit\u00e9 et la s\u00e9curit\u00e9 du syst\u00e8me.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"7704\" data-end=\"7735\">Questions fr\u00e9quemment pos\u00e9es<\/h2>\r\n<p data-start=\"7737\" data-end=\"7907\"><strong data-start=\"7737\" data-end=\"7781\">Un UPS prot\u00e8ge-t-il contre les surtensions ?<\/strong><br data-start=\"7781\" data-end=\"7784\" \/>Seulement dans une mesure limit\u00e9e. Les unit\u00e9s UPS incluent un filtrage de base mais ne peuvent pas g\u00e9rer les surtensions \u00e0 haute \u00e9nergie sans SPD suppl\u00e9mentaires.<\/p>\r\n<p data-start=\"7909\" data-end=\"8077\"><strong data-start=\"7909\" data-end=\"7965\">Un onduleur avec protection contre les surtensions est-il suffisant contre la foudre\u00a0?<\/strong><br data-start=\"7965\" data-end=\"7968\" \/>Non. Lightning n\u00e9cessite un SPD de type 1 \u00e0 l'entr\u00e9e de service pour prot\u00e9ger \u00e0 la fois l'onduleur et la charge connect\u00e9e.<\/p>\r\n<p data-start=\"8079\" data-end=\"8251\"><strong data-start=\"8079\" data-end=\"8122\">Puis-je utiliser un parasurtenseur avec un UPS ?<\/strong><br data-start=\"8122\" data-end=\"8125\" \/>Oui, mais la meilleure pratique consiste \u00e0 installer des SPD au niveau de la distribution et de la charge plut\u00f4t que de s'appuyer sur de simples p\u00e9riph\u00e9riques enfichables.<\/p>\r\n<p data-start=\"8253\" data-end=\"8298\"><strong data-start=\"8253\" data-end=\"8296\">Quel type de SPD convient le mieux aux syst\u00e8mes UPS\u00a0?<\/strong><\/p>\r\n\r\n<ul data-start=\"8299\" data-end=\"8457\">\r\n \t<li data-start=\"8299\" data-end=\"8352\">\r\n<p data-start=\"8301\" data-end=\"8352\">Type 1 pour la protection contre la foudre des entr\u00e9es de service.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8353\" data-end=\"8419\">\r\n<p data-start=\"8355\" data-end=\"8419\">Type 2 pour l'entr\u00e9e UPS et la suppression des surtensions au niveau de la distribution.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8420\" data-end=\"8457\">\r\n<p data-start=\"8422\" data-end=\"8457\">Type 3 pour les appareils finaux sensibles.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8464\" data-end=\"8479\">Conclusion<\/h2>\r\n<p data-start=\"8480\" data-end=\"8793\">Lorsque l'on compare UPS et UPS avec protection contre les surtensions, la distinction cl\u00e9 r\u00e9side dans leurs r\u00f4les. Un UPS standard garantit une alimentation de secours en cas de panne, tandis qu'un UPS avec protection int\u00e9gr\u00e9e contre les surtensions ajoute une d\u00e9fense limit\u00e9e contre les transitoires mineurs. Cependant, ni l\u2019un ni l\u2019autre ne peut remplacer la protection robuste d\u2019un SPD d\u00e9di\u00e9.<\/p>\r\n<p data-start=\"8795\" data-end=\"8954\">Pour les environnements critiques et les r\u00e9gions soumises \u00e0 de fr\u00e9quentes perturbations dues \u00e0 la foudre ou au r\u00e9seau, la meilleure pratique consiste \u00e0 adopter une strat\u00e9gie de protection en cascade\u00a0:<\/p>\r\n\r\n<ul data-start=\"8955\" data-end=\"9075\">\r\n \t<li data-start=\"8955\" data-end=\"8995\">\r\n<p data-start=\"8957\" data-end=\"8995\">Utilisez UPS pour une alimentation \u00e9lectrique continue.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8996\" data-end=\"9075\">\r\n<p data-start=\"8998\" data-end=\"9075\">D\u00e9ployez des SPD de type 1, de type 2 et de type 3 pour une suppression compl\u00e8te des surtensions.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"9077\" data-end=\"9442\">Notre soci\u00e9t\u00e9 est sp\u00e9cialis\u00e9e dans la protection \u00e9lectrique basse tension avanc\u00e9e, offrant une gamme compl\u00e8te de SPD con\u00e7us pour s'int\u00e9grer de mani\u00e8re transparente aux syst\u00e8mes UPS. Avec des produits tels que le SPD FLP25-275\/3S+1 Type 1 et le SPD SLP40-275\/3S+1 Type 2, nous garantissons que votre infrastructure \u00e9lectrique est non seulement ininterrompue, mais \u00e9galement enti\u00e8rement prot\u00e9g\u00e9e contre les surtensions dommageables.<\/p>\r\n<p data-start=\"9444\" data-end=\"9603\">En combinant les atouts des UPS et des SPD, vous pouvez obtenir une fiabilit\u00e9 maximale, une dur\u00e9e de vie prolong\u00e9e de l'\u00e9quipement et une conformit\u00e9 aux normes de s\u00e9curit\u00e9 internationales.<\/p>","protected":false},"featured_media":2155,"parent":0,"menu_order":124,"template":"","meta":{"_acf_changed":false},"blog_category":[9],"class_list":["post-2168","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":{"des":"This article explains the difference between a standard UPS and a UPS with surge protection, helping users understand their roles in power continuity and surge suppression. While a UPS guarantees backup power during outages, built-in surge protection is often limited. For complete safety\u2014especially against lightning and high-energy transients\u2014external SPDs are essential. The guide explores technical comparisons, IEC-standard parameters, and best practices for integrating Type 1, Type 2, and Type 3 SPDs with UPS systems, ensuring reliable protection for IT, industrial, and medical applications.","txt":"<h2 data-start=\"240\" data-end=\"257\">Introduction<\/h2>\r\n<p data-start=\"258\" data-end=\"631\">In today\u2019s interconnected world, where even a few seconds of downtime can disrupt critical operations, reliable power protection has become essential. Two common solutions dominate this field: the Uninterruptible Power Supply (UPS) and the UPS with surge protection. Although many assume a UPS alone provides comprehensive protection, the reality is more complex.<\/p>\r\n<p data-start=\"633\" data-end=\"1212\">A UPS primarily ensures continuity of power during outages, while surge protection devices (SPDs) safeguard against transient overvoltages caused by lightning, grid switching, or equipment disturbances. Choosing between a standard UPS and a UPS with built-in surge protection requires an understanding of their roles, strengths, and limitations. This article compares both options, highlights the technical aspects of surge protection, and demonstrates how combining UPS with high-performance SPDs, such as those manufactured by our company, creates the most reliable solution.<\/p>\r\n\r\n<h2 data-start=\"1219\" data-end=\"1247\">What is a Standard UPS?<\/h2>\r\n<p data-start=\"1248\" data-end=\"1504\">A <strong data-start=\"1250\" data-end=\"1266\">standard UPS<\/strong> is designed to keep equipment operational during blackouts, voltage dips, or brownouts. By storing energy in batteries and converting it instantly into usable AC power, a UPS ensures seamless operation when the main power source fails.<\/p>\r\n<p data-start=\"1506\" data-end=\"1549\">There are three widely used types of UPS:<\/p>\r\n\r\n<ul data-start=\"1551\" data-end=\"2138\">\r\n \t<li data-start=\"1551\" data-end=\"1714\">\r\n<p data-start=\"1553\" data-end=\"1714\"><strong data-start=\"1553\" data-end=\"1578\">Standby (Offline) UPS<\/strong>: Offers the most basic level of backup, switching to battery power during outages. It is suitable for home or small office equipment.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1715\" data-end=\"1882\">\r\n<p data-start=\"1717\" data-end=\"1882\"><strong data-start=\"1717\" data-end=\"1741\">Line-Interactive UPS<\/strong>: Adds voltage regulation, protecting against undervoltage and overvoltage without switching to battery power, which prolongs battery life.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1883\" data-end=\"2138\">\r\n<p data-start=\"1885\" data-end=\"2138\"><strong data-start=\"1885\" data-end=\"1917\">Online Double Conversion UPS<\/strong>: Provides continuous conversion from AC to DC and back to AC, ensuring a stable, clean, and isolated power supply. It is used in mission-critical environments such as data centers, hospitals, and industrial automation.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2140\" data-end=\"2439\">Despite these advantages, a standard UPS does not guarantee full protection against high-energy surges. While most UPS units include minimal surge filtering\u2014often through small MOVs\u2014these components cannot withstand the magnitude of surges caused by lightning or switching events in power systems.<\/p>\r\n\r\n<h2 data-start=\"2446\" data-end=\"2487\">What is a UPS with Surge Protection?<\/h2>\r\n<p data-start=\"2488\" data-end=\"2793\">A UPS with surge protection integrates limited surge suppression functionality directly into the UPS system. These models combine backup power with embedded MOV-based surge arresters, allowing them to suppress minor surges and voltage spikes in addition to providing continuous power during outages.<\/p>\r\n<p data-start=\"2795\" data-end=\"2981\">This dual functionality makes them convenient for environments such as home offices, small business IT networks, or consumer electronics where space and cost efficiency are priorities.<\/p>\r\n<p data-start=\"2983\" data-end=\"3454\">However, it is important to recognize the limitations of this integration. The surge protection within such UPS units is typically rated for small transients, often in the range of a few hundred joules. They cannot replace a dedicated Type 1 or Type 2 surge protective device that complies with <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"3278\" data-end=\"3294\">IEC 61643-11<\/strong><\/a>. For areas exposed to frequent lightning activity or sensitive industrial applications, relying solely on this built-in function leaves equipment vulnerable.<\/p>\r\n<p data-start=\"2983\" data-end=\"3454\"><a href=\"https:\/\/www.britecelectric.com\/attachment\/chatgpt-image-2025825-14-10-54\/\" rel=\"attachment wp-att-2169\"><img class=\"alignnone wp-image-2169\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/ChatGPT-Image-2025\u5e748\u670825\u65e5-14_10_54.png\" alt=\"UPS vs UPS with Surge Protection\" width=\"975\" height=\"650\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"3461\" data-end=\"3521\">UPS vs UPS with Surge Protection \u2013 Technical Comparison<\/h2>\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Feature<\/th>\r\n<th>Standard UPS<\/th>\r\n<th>UPS with Surge Protection<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Backup Power<\/td>\r\n<td>Provides seamless power during outages<\/td>\r\n<td>Provides seamless power during outages<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Surge Suppression<\/td>\r\n<td>Minimal filtering, not sufficient for large surges<\/td>\r\n<td>Built-in MOVs protect against small surges and spikes<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Lightning Protection<\/td>\r\n<td>Requires external SPD<\/td>\r\n<td>Still requires external SPD<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Protection Level (Up)<\/td>\r\n<td>Typically &gt;2.0 kV<\/td>\r\n<td>Typically 1.5\u20132.0 kV<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cost<\/td>\r\n<td>Lower<\/td>\r\n<td>Slightly higher<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Applications<\/td>\r\n<td>Data continuity and outage protection<\/td>\r\n<td>Small IT systems with basic surge protection needs<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"4173\" data-end=\"4395\">A UPS with surge protection is more convenient for light-duty environments, but it cannot provide the level of defense required for high-energy surge events. For critical installations, an external SPD remains essential.<\/p>\r\n\r\n<h2 data-start=\"4402\" data-end=\"4455\">Why UPS Alone is Not Enough for Surge Protection<\/h2>\r\n<p data-start=\"4456\" data-end=\"4711\">Electrical surges can reach magnitudes of over 20 kV and 5 kA, levels that far exceed the tolerance of any UPS\u2019s internal surge filter. Relying on a UPS alone for surge suppression exposes both the UPS itself and the connected equipment to serious risk.<\/p>\r\n<p data-start=\"4713\" data-end=\"4799\">According to IEC 61643-11, the performance of SPDs is defined by several parameters:<\/p>\r\n\r\n<ul data-start=\"4801\" data-end=\"5233\">\r\n \t<li data-start=\"4801\" data-end=\"4915\">\r\n<p data-start=\"4803\" data-end=\"4915\"><strong data-start=\"4803\" data-end=\"4849\">Uc (Maximum Continuous Operating Voltage):<\/strong> The highest RMS voltage an SPD can withstand without operating.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4916\" data-end=\"5017\">\r\n<p data-start=\"4918\" data-end=\"5017\"><strong data-start=\"4918\" data-end=\"4952\">Up (Voltage Protection Level):<\/strong> The residual voltage passed to equipment during a surge event.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5018\" data-end=\"5121\">\r\n<p data-start=\"5020\" data-end=\"5121\"><strong data-start=\"5020\" data-end=\"5055\">In (Nominal Discharge Current):<\/strong> The SPD\u2019s ability to handle repeated surges (8\/20 \u03bcs waveform).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5122\" data-end=\"5233\">\r\n<p data-start=\"5124\" data-end=\"5233\"><strong data-start=\"5124\" data-end=\"5161\">Imax (Maximum Discharge Current):<\/strong> The maximum surge current the SPD can withstand once without failure.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5235\" data-end=\"5455\">For example, our Type 2 DIN-rail mounted SPDs are rated with nominal discharge currents of up to 20\u201340 kA and residual voltages below 1.5 kV, providing far more robust protection than any built-in UPS surge filter.<\/p>\r\n\r\n<h2 data-start=\"5462\" data-end=\"5515\">Best Practice: UPS with External SPD Combination<\/h2>\r\n<p data-start=\"5516\" data-end=\"5693\">The most reliable approach is not to choose between UPS and SPD, but to combine them. A layered strategy ensures that both power continuity and surge protection are addressed.<\/p>\r\n\r\n<ol data-start=\"5695\" data-end=\"6645\">\r\n \t<li data-start=\"5695\" data-end=\"6022\">\r\n<p data-start=\"5698\" data-end=\"5778\"><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-1-lightning-surge-protection-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"5698\" data-end=\"5712\">Type 1 SPD<\/strong><\/a> \u2013 Installed at the service entrance or main distribution panel.<\/p>\r\n\r\n<ul data-start=\"5782\" data-end=\"6022\">\r\n \t<li data-start=\"5782\" data-end=\"5845\">\r\n<p data-start=\"5784\" data-end=\"5845\">Protects against high-energy surges from lightning strikes.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5849\" data-end=\"6022\">\r\n<p data-start=\"5851\" data-end=\"6022\">Our FLP25-275\/3S+1 SPD is specifically designed for three-phase TN-S and TT systems, with Iimp capability of 25 kA per pole, making it ideal for incoming protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"6024\" data-end=\"6339\">\r\n<p data-start=\"6027\" data-end=\"6073\"><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"6027\" data-end=\"6041\">Type 2 SPD<\/strong><\/a> \u2013 Installed at the UPS input.<\/p>\r\n\r\n<ul data-start=\"6077\" data-end=\"6339\">\r\n \t<li data-start=\"6077\" data-end=\"6166\">\r\n<p data-start=\"6079\" data-end=\"6166\">Protects the UPS rectifier and inverter from switching surges and utility transients.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6170\" data-end=\"6339\">\r\n<p data-start=\"6172\" data-end=\"6339\">Our SLP40-275\/3S+1 SPD provides nominal discharge current up to 20 kA and maximum discharge current up to 40 kA, ensuring reliable coordination with UPS systems.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"6341\" data-end=\"6645\">\r\n<p data-start=\"6344\" data-end=\"6394\"><a href=\"https:\/\/www.britecelectric.com\/product_category\/type-3-surge-protector\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"6344\" data-end=\"6358\">Type 3 SPD<\/strong><\/a> \u2013 Installed near sensitive loads.<\/p>\r\n\r\n<ul data-start=\"6398\" data-end=\"6645\">\r\n \t<li data-start=\"6398\" data-end=\"6503\">\r\n<p data-start=\"6400\" data-end=\"6503\">Protects PCs, servers, routers, and medical equipment from residual surges after upstream protection.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6507\" data-end=\"6645\">\r\n<p data-start=\"6509\" data-end=\"6645\">Our compact Type 3 plug-in SPDs offer low clamping voltages and fast response times, ensuring device safety at the end-user level.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"6647\" data-end=\"6838\">By combining UPS and SPDs in this cascaded manner, users benefit from uninterrupted operation during power failures while ensuring comprehensive protection against surges of all magnitudes.<\/p>\r\n\r\n<h2 data-start=\"6845\" data-end=\"6873\">Real-World Applications<\/h2>\r\n<ul data-start=\"6874\" data-end=\"7697\">\r\n \t<li data-start=\"6874\" data-end=\"7088\">\r\n<p data-start=\"6876\" data-end=\"7088\"><strong data-start=\"6876\" data-end=\"6902\">Home and Small Offices<\/strong>: A UPS with integrated surge protection can provide convenient protection, but adding a panel-mounted Type 2 SPD extends equipment lifespan and reduces risk from utility disturbances.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7089\" data-end=\"7286\">\r\n<p data-start=\"7091\" data-end=\"7286\"><strong data-start=\"7091\" data-end=\"7107\">Data Centers<\/strong>: Online double conversion UPS systems combined with Type 1 and Type 2 SPDs are essential to ensure both continuity and robust protection against lightning and switching surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7287\" data-end=\"7480\">\r\n<p data-start=\"7289\" data-end=\"7480\"><strong data-start=\"7289\" data-end=\"7314\">Healthcare Facilities<\/strong>: Critical equipment such as imaging systems and life-support machines require guaranteed uptime from UPS, while SPDs ensure protection from dangerous overvoltages.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7481\" data-end=\"7697\">\r\n<p data-start=\"7483\" data-end=\"7697\"><strong data-start=\"7483\" data-end=\"7508\">Industrial Automation<\/strong>: PLCs, motor drives, and sensors are highly vulnerable to surges caused by switching and nearby lightning. Combining UPS with industrial-grade SPDs ensures system reliability and safety.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"7704\" data-end=\"7735\">Frequently Asked Questions<\/h2>\r\n<p data-start=\"7737\" data-end=\"7907\"><strong data-start=\"7737\" data-end=\"7781\">Does a UPS protect against power surges?<\/strong><br data-start=\"7781\" data-end=\"7784\" \/>Only to a limited extent. UPS units include basic filtering but cannot handle high-energy surges without additional SPDs.<\/p>\r\n<p data-start=\"7909\" data-end=\"8077\"><strong data-start=\"7909\" data-end=\"7965\">Is a UPS with surge protection enough for lightning?<\/strong><br data-start=\"7965\" data-end=\"7968\" \/>No. Lightning requires a Type 1 SPD at the service entrance to protect both the UPS and the connected load.<\/p>\r\n<p data-start=\"8079\" data-end=\"8251\"><strong data-start=\"8079\" data-end=\"8122\">Can I use a surge protector with a UPS?<\/strong><br data-start=\"8122\" data-end=\"8125\" \/>Yes, but the best practice is to install SPDs at distribution and load levels rather than relying on simple plug-in devices.<\/p>\r\n<p data-start=\"8253\" data-end=\"8298\"><strong data-start=\"8253\" data-end=\"8296\">Which SPD type is best for UPS systems?<\/strong><\/p>\r\n\r\n<ul data-start=\"8299\" data-end=\"8457\">\r\n \t<li data-start=\"8299\" data-end=\"8352\">\r\n<p data-start=\"8301\" data-end=\"8352\">Type 1 for service entrance lightning protection.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8353\" data-end=\"8419\">\r\n<p data-start=\"8355\" data-end=\"8419\">Type 2 for UPS input and distribution-level surge suppression.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8420\" data-end=\"8457\">\r\n<p data-start=\"8422\" data-end=\"8457\">Type 3 for sensitive end devices.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8464\" data-end=\"8479\">Conclusion<\/h2>\r\n<p data-start=\"8480\" data-end=\"8793\">When comparing UPS vs UPS with surge protection, the key distinction lies in their roles. A standard UPS guarantees backup power during outages, while a UPS with integrated surge protection adds limited defense against minor transients. However, neither can replace the robust protection of a dedicated SPD.<\/p>\r\n<p data-start=\"8795\" data-end=\"8954\">For mission-critical environments and regions with frequent lightning or grid disturbances, the best practice is to adopt a cascaded protection strategy:<\/p>\r\n\r\n<ul data-start=\"8955\" data-end=\"9075\">\r\n \t<li data-start=\"8955\" data-end=\"8995\">\r\n<p data-start=\"8957\" data-end=\"8995\">Use UPS for continuous power supply.<\/p>\r\n<\/li>\r\n \t<li data-start=\"8996\" data-end=\"9075\">\r\n<p data-start=\"8998\" data-end=\"9075\">Deploy Type 1, Type 2, and Type 3 SPDs for comprehensive surge suppression.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"9077\" data-end=\"9442\">Our company specializes in advanced low-voltage electrical protection, offering a full portfolio of SPDs designed to integrate seamlessly with UPS systems. With products such as the FLP25-275\/3S+1 Type 1 SPD and the SLP40-275\/3S+1 Type 2 SPD, we ensure that your power infrastructure is not only uninterrupted but also fully shielded from damaging surges.<\/p>\r\n<p data-start=\"9444\" data-end=\"9603\">By combining the strengths of UPS and SPDs, you can achieve maximum reliability, extended equipment life, and compliance with international safety standards.<\/p>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog\/2168","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\/2155"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media?parent=2168"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog_category?post=2168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}