{"id":9362,"date":"2024-11-27T15:29:56","date_gmt":"2024-11-27T14:29:56","guid":{"rendered":"https:\/\/stage-lettel.fk-agency.net\/?post_type=ressources&#038;p=9362"},"modified":"2025-09-09T10:02:47","modified_gmt":"2025-09-09T08:02:47","slug":"regulation-thermique-armoire-electrique","status":"publish","type":"ressources","link":"https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/regulation-thermique-armoire-electrique\/","title":{"rendered":"Comment r\u00e9guler la temp\u00e9rature d&rsquo;une armoire \u00e9lectrique ?"},"content":{"rendered":"\r\n\r\n<section class=\"blc-heroSingle\">\r\n\r\n\t<div class=\"container\">\r\n\t\t<div class=\"row gy-5\">\r\n\r\n\t\t\t<div class=\"col-xl-4 col-lg-6\">\r\n\t\t\t\t<div class=\"blc-heroSingle_txt\">\r\n\t\t\t\t\t<span class=\"blc-heroSingle_supttl\">Publi\u00e9 le 27 novembre 2024<\/span>\r\n\t\t\t\t\t<h1 class='blc-heroSingle_ttl' class='blc-heroSingle_ttl' id=\"comment-reguler-la-temperature-dune-armoire-electrique\">Comment r\u00e9guler la temp\u00e9rature d&rsquo;une armoire \u00e9lectrique ?<\/h1>\r\n\t\t\t\t\t<p class=\"blc-heroSingle_data\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"blc-heroSingle_tags\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t\t\t\t<\/p>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<div class=\"col-xl-7 col-lg-5 offset-lg-1\">\r\n\t\t\t\t<figure class=\"heroSingle_med media-wrp__16x9 full\">\r\n\t\t\t\t\t<img decoding=\"async\" alt=\"Cam\u00e9ra thermique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2024\/11\/Camera_Thermique.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2024\/11\/Camera_Thermique-281x300.jpg 281w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2024\/11\/Camera_Thermique-600x640.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2024\/11\/Camera_Thermique.jpg 750w\" sizes=\"(min-width: 992px) 893px, (min-width: 1200px) 1080px, (min-width: 1400px) 1260px, (min-width: 1600px) 1440px, 100vw\">\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t<\/div>\r\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-content-post spc-s5 bg-cw \"> \r\n    <div class=\"container\">\r\n\r\n        <div class=\"row\">\r\n            <div class=\"col-lg-8\">\r\n                <div class=\"editor\">\r\n                    <p>Assurer la bonne <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/\">r\u00e9gulation thermique des armoires \u00e9lectriques<\/a> est essentiel pour prolonger la dur\u00e9e de vie des composants et garantir le bon fonctionnement de ses \u00e9quipements et installations.<\/p>\n<p>Mais quelles sont les causes des variations de temp\u00e9rature et les risques associ\u00e9s ? Et quelles solutions mettre en place pour maintenir une <strong>temp\u00e9rature optimale<\/strong> dans son bo\u00eetier \u00e9lectrique, de fa\u00e7on efficace et durable ?<\/p>\n<p>Dans cet article, <span style=\"color: #fdc300; font-weight: 600;\">Lettel<\/span> vous propose un tour d\u2019horizon des dispositifs et bonnes pratiques \u00e0 conna\u00eetre pour assurer, en continu, la bonne r\u00e9gulation thermique des armoires \u00e9lectriques install\u00e9es sur votre site industriel.<\/p>\n<h2 id=\"quelles-sont-les-causes-des-variations-de-temperature-dans-une-armoire-electrique\">Quelles sont les causes des variations de temp\u00e9rature dans une armoire \u00e9lectrique ?<\/h2>\n<p>Les variations de temp\u00e9rature dans une armoire \u00e9lectrique sont souvent le r\u00e9sultat de plusieurs facteurs internes et externes, tels que :<\/p>\n<ul>\n<li>Un <strong>\u00e9chauffement<\/strong> par effet Joule, caus\u00e9 par les composants \u00e9lectriques \u00e0 l&rsquo;int\u00e9rieur du bo\u00eetier (<a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/les-transformateurs-de-courant\/\">transformateurs<\/a>, variateurs de vitesse, convertisseurs de puissance\u2026)<\/li>\n<li><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/perturbations_harmoniques\/\">Les perturbations li\u00e9es aux harmoniques<\/a>, des fr\u00e9quences suppl\u00e9mentaires g\u00e9n\u00e9r\u00e9es par des charges non lin\u00e9aires qui perturbent la courbe du signal sinuso\u00efdal<\/li>\n<li>Des variations importantes de la charge \u00e9lectrique li\u00e9es par exemple \u00e0 l&rsquo;installation d\u2019\u00e9quipements tr\u00e8s \u00e9nergivores<\/li>\n<li>Une mauvaise <strong>circulation de l\u2019air<\/strong>, notamment si l\u2019armoire est confin\u00e9e dans un espace exempt d\u2019a\u00e9ration naturelle<\/li>\n<li>L\u2019accumulation de <strong>particules de poussi\u00e8re<\/strong> et d\u2019impuret\u00e9s sur les composants et sur les filtres de <strong>ventilation<\/strong>, qui agissent comme un isolant thermique, limitant ainsi la dissipation de la chaleur<\/li>\n<li>Les conditions climatiques (exposition au soleil, au gel, au froid, \u00e0 l\u2019humidit\u00e9\u2026) et les fluctuations thermiques li\u00e9es aux changements de saisons<\/li>\n<\/ul>\n<p>En outre, plus la <strong>densit\u00e9 de courant<\/strong> et la <strong>puissance<\/strong> des appareils sont \u00e9lev\u00e9es, plus les risques de surchauffe sont importants. C\u2019est pourquoi les armoires industrielles&nbsp;, qui contiennent souvent plus d\u2019une centaine de composants diff\u00e9rents, sont particuli\u00e8rement expos\u00e9es aux variations de temp\u00e9rature.<br \/>\n<img decoding=\"async\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/08\/danger-thermique.jpg\" alt=\"Danger thermique\" \/><\/p>\n<h2 id=\"quels-sont-les-risques-lies-aux-variations-de-temperature-dans-une-armoire-electrique\">Quels sont les risques li\u00e9s aux variations de temp\u00e9rature dans une armoire \u00e9lectrique ?<\/h2>\n<p>Voici quelques-uns des risques li\u00e9s \u00e0 une mauvaise r\u00e9gulation thermique dans une armoire \u00e9lectrique :<\/p>\n<ul>\n<li><strong>L\u2019usure pr\u00e9matur\u00e9e des composants :<\/strong> une chaleur excessive acc\u00e9l\u00e8re fortement le vieillissement des composants \u00e9lectriques. De m\u00eame, une temp\u00e9rature trop basse peut renforcer la rigidit\u00e9 de certains mat\u00e9riaux, tels que le plastique, et g\u00e9n\u00e9rer des fissures, des cassures et autres d\u00e9t\u00e9riorations pr\u00e9coces. L\u2019humidit\u00e9 acc\u00e9l\u00e8re quant \u00e0 elle la corrosion des composants. Par ailleurs, les changements de temp\u00e9rature soudains peuvent g\u00e9n\u00e9rer des chocs thermiques qui risquent d\u2019endommager l\u2019ensemble des circuits \u00e9lectriques.<\/li>\n<li><strong>Des pannes et des courts-circuits :<\/strong> une temp\u00e9rature trop basse ou trop \u00e9lev\u00e9e peut \u00e9galement \u00eatre \u00e0 l\u2019origine de d\u00e9faillances, de coupures intempestives et de pannes fr\u00e9quentes des \u00e9quipements \u00e9lectriques. Cela peut alors g\u00e9n\u00e9rer l\u2019arr\u00eat de l\u2019activit\u00e9, mais aussi induire des risques de s\u00e9curit\u00e9 importants ;&nbsp;<\/li>\n<li><strong>Des pertes d\u2019efficacit\u00e9 \u00e9nerg\u00e9tique :<\/strong> lorsque la temp\u00e9rature augmente, les \u00e9quipements ont tendance \u00e0 consommer davantage afin de compenser les effets de la chaleur, ce qui se traduit par une baisse de la performance \u00e9nerg\u00e9tique et par une hausse des co\u00fbts d\u2019exploitation ;<\/li>\n<li><strong>Des risques d\u2019incendie :<\/strong> si les c\u00e2bles et composants de l\u2019armoire \u00e9lectrique atteignent leur temp\u00e9rature d\u2019ignition, il y a alors un risque de d\u00e9part de feu ;<\/li>\n<\/ul>\n<p>Il est donc primordial de surveiller et de r\u00e9guler continuellement la temp\u00e9rature de son<strong> armoire \u00e9lectrique<\/strong> pour prolonger la dur\u00e9e de vie de ses \u00e9quipements, ma\u00eetriser ses co\u00fbts d\u2019exploitation et de maintenance, et am\u00e9liorer l\u2019ensemble de la <strong>performance \u00e9nerg\u00e9tique<\/strong> du site.<\/p>\n<p style=\"background-color: #1b1945; color: #fdc300; padding: 40px; font-weight: 500;\"><span style=\"color: #ffffff;\"><strong><span style=\"color: #1eb4e6;\">Bon \u00e0 savoir :<\/span><\/strong> la temp\u00e9rature id\u00e9ale d\u2019une armoire \u00e9lectrique doit se situer entre 25\u00b0C et 35\u00b0C.&nbsp;Une temp\u00e9rature inf\u00e9rieure ou sup\u00e9rieure \u00e0 ces seuils peut rapidement nuire \u00e0 la long\u00e9vit\u00e9 des composants et au bon fonctionnement des \u00e9quipements.<\/span><\/p>\n<h2 id=\"quels-dispositifs-installer-pour-reguler-la-temperature-dans-son-armoire-electrique\">Quels dispositifs installer pour r\u00e9guler la temp\u00e9rature dans son armoire \u00e9lectrique ?<\/h2>\n<p>Plusieurs dispositifs peuvent \u00eatre install\u00e9s pour maintenir une temp\u00e9rature stable au sein de son armoire \u00e9lectrique :<\/p>\n<h3 id=\"installer-un-thermostat-pour-detecter-les-variations-de-temperature\">Installer un thermostat pour d\u00e9tecter les variations de temp\u00e9rature<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; align-items: center; margin-top: 20px;\">\n<div style=\"flex: 1 1 60%; min-width: 250px; text-align: left;\">Avant tout, il est imp\u00e9ratif d\u2019installer un <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/thermostats-hygrostats\/\">thermostat<\/a> pour d\u00e9tecter les variations thermiques en temps r\u00e9el et activer les <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/resistances-chauffantes-armoire-electrique\/\">syst\u00e8mes de chauffage<\/a> ou <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/ventilation-armoire\/\">de refroidissement<\/a> si la temp\u00e9rature d\u00e9passe un certain plafond ou qu\u2019elle chute en dessous d\u2019un certain seuil.<\/div>\n<div style=\"flex: 1; min-width: 250px; padding: 0px; text-align: center;\">\n<p><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/thermostat-chauffage-nf-gta-thr\/\"><br \/>\n<img decoding=\"async\" style=\"display: inline; margin: 0; padding: 0; width: 100%; max-width: 160px;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-600x600.jpg.webp\" alt=\"Thermostat GTA-THR\" \/><br \/>\nGTA-THR<\/a><br \/>\n&nbsp;<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; align-items: center;\">\n<div style=\"flex: 1 1 60%; min-width: 250px; padding: 0px; text-align: left;\">L\u2019installation d\u2019un <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/thermostats-hygrostats\/\">hygrostat<\/a> peut \u00e9galement \u00eatre judicieuse dans les environnements tr\u00e8s humides, afin de surveiller le taux d\u2019hygrom\u00e9trie et d\u2019\u00e9viter la condensation pouvant endommager les composants au sein du bo\u00eetier \u00e9lectrique.<\/div>\n<div style=\"flex: 1; min-width: 250px; padding: 0px; text-align: center;\">\n<p><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/hygrostat-modulaire-gta-hyg\/\"><br \/>\n<img decoding=\"async\" style=\"display: inline; margin: 0; padding: 0; width: 100%; max-width: 140px;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-HYG-35-95_hygrostat-600x600.jpg.webp\" alt=\"Hygrostat GTA-HYG\" \/><br \/>\nGTA-HYG<\/a><br \/>\n&nbsp;<\/p>\n<\/div>\n<\/div>\n<p>En outre, certains <strong>capteurs de temp\u00e9rature intelligents<\/strong> peuvent transmettre des alertes en cas de surchauffe ou de refroidissement, ce qui permet d&rsquo;assurer une surveillance continue \u00e0 distance.<br \/>\nPour r\u00e9duire les risques de surchauffe dans l\u2019armoire \u00e9lectrique, plusieurs dispositifs de refroidissement, <strong>actifs <\/strong>ou <strong>passifs<\/strong>, peuvent \u00eatre install\u00e9s, tels que :<\/p>\n<h3 id=\"installer-un-systeme-de-refroidissement-actif-ou-passif\">Installer un syst\u00e8me de refroidissement actif ou passif<\/h3>\n<p><img decoding=\"async\" class=\"alignright\" style=\"margin: 4px; max-height: 220px!important; width: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2024\/11\/VENTILATION.jpg\" alt=\"dissipation d'air\" \/><\/p>\n<ul>\n<li><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/ventilation-armoire\/\">Des ventilateurs et extracteurs d\u2019air<\/a> : ces syst\u00e8mes de ventilation forc\u00e9e facilitent la circulation de l\u2019air au sein du bo\u00eetier et favorisent la dissipation thermique. Ce dispositif est adapt\u00e9 aux armoires pr\u00e9sentant des charges thermiques mod\u00e9r\u00e9es.&nbsp;<\/li>\n<li><strong><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/ventilation-armoire\/\">Des grilles d\u2019a\u00e9ration avec ou sans filtres<\/a> :<\/strong> install\u00e9es en haut et en bas de l\u2019armoire \u00e9lectrique, ces bouches d\u2019a\u00e9ration facilitent la circulation naturelle de l\u2019air, en faisant entrer un flux d\u2019air frais par le bas et en laissant sortir l\u2019air chaud par le haut. Ce dispositif est adapt\u00e9 aux armoires pr\u00e9sentant de faibles charges thermiques.<\/li>\n<li><strong>Des \u00e9changeurs thermiques, ou intercooler :<\/strong> les \u00e9changeurs air-air utilisent l\u2019\u00e9cart de temp\u00e9rature entre l&rsquo;int\u00e9rieur et l&rsquo;ext\u00e9rieur du coffret \u00e9lectrique pour dissiper la chaleur via un fluide caloporteur. Les \u00e9changeurs air-eau refroidissent l&rsquo;air au sein de l&rsquo;armoire en utilisant un circuit d&rsquo;eau froide. Ce syst\u00e8me est utile dans les environnements tr\u00e8s chauds, n\u00e9cessitant un refroidissement important.<\/li>\n<li><strong>Des syst\u00e8mes de climatisation :<\/strong> les climatiseurs d&rsquo;armoires \u00e9lectriques industrielles permettent de maintenir une temp\u00e9rature ambiante stable, en favorisant l\u2019\u00e9vaporation des condensats. Ce dispositif se pr\u00eate bien aux espaces expos\u00e9s \u00e0 de fortes chaleurs.<\/li>\n<li><strong>Des dissipateurs thermiques :<\/strong> ces plaques conductrices de chaleur fix\u00e9es aux composants permettent de propulser la chaleur vers l&rsquo;ext\u00e9rieur. Elles sont souvent utilis\u00e9es en compl\u00e9ment de ventilateurs pour maximiser la dissipation thermique.<\/li>\n<\/ul>\n<div style=\"display: flex; flex-wrap: wrap; justify-content: center;\">\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-ventilation-125x125-gta-125-vff\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-600x600.jpg\" alt=\"GTA-125-VFF\" \/><\/a><br \/>\n<a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-ventilation-125x125-gta-125-vff\/\">GTA-125-VFF<\/a><\/div>\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/ventilateur-grille-204x204-gta-176-vff\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-176-VFF-230_ventilateur_armoire_electrique-600x600.jpg\" alt=\"GTA-176-VFF\" \/><\/a><a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/ventilateur-grille-204x204-gta-176-vff\/\">GTA-176-VFF<\/a><\/div>\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-aeration-ventilee-250x250-gta-223-vff\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-600x600.jpg\" alt=\"GTA-223-VFF\" \/><\/a><a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-aeration-ventilee-250x250-gta-223-vff\/\">GTA-223-VFF<\/a><\/div>\n<\/div>\n<p>Ces diff\u00e9rents dispositifs sont indispensables pour optimiser le <strong>rendement \u00e9nerg\u00e9tique<\/strong> de ses \u00e9quipements, prolonger la dur\u00e9e de vie des composants et assurer la continuit\u00e9 op\u00e9rationnelle de son activit\u00e9 industrielle.<\/p>\n<p>Le choix du dispositif d\u00e9pend avant tout des <strong>conditions climatiques locales<\/strong>, de <strong>l\u2019environnement ambiant<\/strong> (int\u00e9rieur, ext\u00e9rieur, poussi\u00e8re, humidit\u00e9\u2026) et du type d\u2019armoire \u00e9lectrique install\u00e9e.<\/p>\n<h3 id=\"installer-un-systeme-de-chauffage\">Installer un syst\u00e8me de chauffage<\/h3>\n<p>Pour r\u00e9guler la temp\u00e9rature d\u2019un coffret \u00e9lectrique dans des environnements froids, plusieurs dispositifs de chauffage peuvent \u00eatre install\u00e9s, tels que des <a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/resistances-chauffantes-armoire-electrique\/\">r\u00e9sistances chauffantes<\/a>. Ces derni\u00e8res g\u00e9n\u00e8rent de la chaleur par effet Joule, permettant ainsi de <strong>maintenir une temp\u00e9rature minimum<\/strong> en continu et de <strong>r\u00e9duire la condensation<\/strong>.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; justify-content: center;\">\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistance-chauffante-isolee-gta-ri-10-20-30\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-600x600.jpg\" alt=\"GTA-RI-230-10\/20\/30\" \/><\/a><br \/>\n<a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistance-chauffante-isolee-gta-ri-10-20-30\/\">GTA-RI-230-10\/20\/30<\/a><\/div>\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistances-ptc-armoire-electrique-gta-ri-50-100-150\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-600x600.jpg\" alt=\"GTA-RI-230-50-100-150\" \/><\/a><a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistances-ptc-armoire-electrique-gta-ri-50-100-150\/\">GTA-RI-230-50\/100\/150<\/a><\/div>\n<div style=\"flex: 1 1 33.33%; min-width: 250px; padding: 20px; text-align: center; display: flex; flex-direction: column; align-items: center;\"><a href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistance-ventilee-gta-riv-250-400\/\"><img decoding=\"async\" style=\"max-width: 200px; height: auto;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RIV-230-250_resistance_ventilee_armoire-600x600.jpg\" alt=\"GTA-RIV-230-250400\" \/><\/a><a class=\"btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistance-ventilee-gta-riv-250-400\/\">GTA-RIV-230-250\/400<\/a><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div style=\"padding: 40px; background-color: #1b1945; color: white; font-weight: 500;\">\n<p><img decoding=\"async\" style=\"float: left; width: 70px !important; height: 70px !important; margin-right: 20px;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2021\/11\/favicon.png\" \/>Avec ces innovations, la gamme <strong><span style=\"color: #fdc300;\">GTA<\/span> <\/strong>continue de s\u2019\u00e9largir pour r\u00e9pondre encore mieux aux enjeux de protection, fiabilit\u00e9 et confort d\u2019utilisation dans vos installations.<\/p>\n<div style=\"display: flex; justify-content: center; margin-top: 20px;\"><a class=\"c-btn btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/\">Gamme de r\u00e9gulation thermique<\/a><\/div>\n<\/div>\n<p>D\u2019autres syst\u00e8mes de chauffage, tels que des <strong>c\u00e2bles chauffants<\/strong>, des <strong>chauffages infrarouges<\/strong>, des <strong>chauffages par induction<\/strong> ou encore des <strong>chauffages \u00e0 c\u00e9ramique<\/strong> peuvent \u00eatre install\u00e9s selon les cas.<\/p>\n<h2 id=\"nos-conseils-pour-ameliorer-la-regulation-thermique-de-vos-armoires-electriques\">Nos conseils pour am\u00e9liorer la r\u00e9gulation thermique de vos armoires \u00e9lectriques&nbsp;<\/h2>\n<p>Outre l\u2019installation de ces dispositifs, il est imp\u00e9ratif de suivre plusieurs bonnes pratiques pour favoriser la bonne r\u00e9gulation thermique de ses armoires \u00e9lectriques :&nbsp;<\/p>\n<h3 id=\"bien-choisir-lemplacement-de-son-armoire-electrique\">Bien choisir l\u2019emplacement de son armoire \u00e9lectrique<\/h3>\n<p>Installez l&rsquo;armoire \u00e9lectrique dans un <strong>environnement frais et sec<\/strong>, \u00e0 l\u2019abri de l\u2019humidit\u00e9, de la poussi\u00e8re et de tout autre contaminant. Privil\u00e9giez \u00e9galement les <strong>espaces bien ventil\u00e9s<\/strong>, \u00e0 bonne distance des sources de chaleur (radiateurs industriels, machines, moteurs, fours\u2026), afin de limiter les <strong>risques de surchauffe<\/strong>. Veillez aussi \u00e0 laisser assez d\u2019espace autour de l\u2019enceinte \u00e9lectrique, pour permettre \u00e0 l\u2019air de circuler librement.<\/p>\n<p>Si l\u2019armoire est plac\u00e9e \u00e0 l\u2019ext\u00e9rieur, choisissez une zone ombrag\u00e9e et utilisez de pr\u00e9f\u00e9rence un bo\u00eetier adapt\u00e9, <strong>r\u00e9sistant aux UV<\/strong> et aux <strong>intemp\u00e9ries<\/strong>.<br \/>\n<img decoding=\"async\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/08\/technicien-armoire.jpg\" alt=\"armoire \u00e9lectrique ouverte\" \/><\/p>\n<h3 id=\"optimiser-lagencement-des-composants\">Optimiser l\u2019agencement des composants<\/h3>\n<p>Faites \u00e9galement en sorte de<strong> bien agencer les composants<\/strong> au sein de l\u2019armoire \u00e9lectrique. Placez les composants les plus g\u00e9n\u00e9rateurs de chaleur (tels que les variateurs de fr\u00e9quence et les transformateurs) dans les zones les mieux ventil\u00e9es du bo\u00eetier (en bas de pr\u00e9f\u00e9rence), pour \u00e9viter la r\u00e9tention thermique.<\/p>\n<p>Veillez aussi \u00e0 <strong>espacer suffisamment chaque composant<\/strong> pour favoriser la bonne <strong>circulation de l\u2019air<\/strong> et r\u00e9duire les zones de surchauffe.<\/p>\n<h3 id=\"effectuer-une-maintenance-reguliere\">Effectuer une maintenance r\u00e9guli\u00e8re<\/h3>\n<p>En outre, un <strong>entretien r\u00e9gulier<\/strong> est indispensable pour optimiser la gestion thermique de son armoire \u00e9lectrique. Pensez \u00e0 v\u00e9rifier l\u2019\u00e9tanch\u00e9it\u00e9 du coffret \u00e9lectrique, l\u2019\u00e9tat des joints, des c\u00e2bles, et des points de fermeture de fa\u00e7on r\u00e9guli\u00e8re. Assurez-vous aussi que les composants sont en bon \u00e9tat et que les c\u00e2bles n\u2019ont pas \u00e9t\u00e9 endommag\u00e9s par la chaleur ou le froid.<\/p>\n<p data-start=\"165\" data-end=\"375\">Pensez \u00e9galement \u00e0 l&rsquo;entretien et au choix du filtre. Un filtre encrass\u00e9 ou mal adapt\u00e9 r\u00e9duit le flux d\u2019air, fait monter la temp\u00e9rature dans l\u2019armoire et acc\u00e9l\u00e8re l\u2019usure des composants. D\u2019o\u00f9 l\u2019importance de bien choisir, et de changer r\u00e9guli\u00e8rement son filtre.<\/p>\n<p data-start=\"377\" data-end=\"439\">Les classes de filtration (norme EN 779) vont de <strong data-start=\"426\" data-end=\"437\">G1 \u00e0 G4<\/strong> :<\/p>\n<ul>\n<li data-start=\"762\" data-end=\"865\"><strong data-start=\"762\" data-end=\"768\">G1<\/strong> : efficacit\u00e9 tr\u00e8s faible (moins de 50 % des particules &gt;10 \u00b5m). \u00c0 \u00e9viter en milieu industriel.<\/li>\n<li data-start=\"762\" data-end=\"865\"><strong data-start=\"868\" data-end=\"874\">G2<\/strong> : pour environnements peu poussi\u00e9reux. Retient 50 \u00e0 65 % des grosses particules.<\/li>\n<li data-start=\"762\" data-end=\"865\"><strong data-start=\"960\" data-end=\"966\">G3<\/strong> : adapt\u00e9 aux ateliers faiblement expos\u00e9s. Efficacit\u00e9 de 60 \u00e0 80 %.<\/li>\n<li data-start=\"762\" data-end=\"865\"><strong data-start=\"1038\" data-end=\"1044\">G4<\/strong> : recommand\u00e9 pour les environnements plus charg\u00e9s. Jusqu\u2019\u00e0 90 % de filtration.<\/li>\n<\/ul>\n<p>Plus la classe est \u00e9lev\u00e9e, meilleure est la protection, mais plus le filtre s\u2019encrasse vite. <strong data-start=\"772\" data-end=\"852\">Un bon filtre, bien entretenu, c\u2019est un refroidissement efficace et durable.<\/strong><\/p>\n<p>Notre \u00e9quipe technique est \u00e0 votre disposition pour tout renseignement compl\u00e9mentaire ou pour vous aider dans le choix du mat\u00e9riel.<\/p>\n<p>&nbsp;<\/p>\n<div style=\"padding: 40px; background-color: #1b1945; color: white; font-weight: 500;\">\n<p><img decoding=\"async\" style=\"float: left; width: 70px !important; height: 70px !important; margin-right: 20px;\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2021\/11\/favicon.png\" \/><span style=\"color: #ffffff;\"><span style=\"color: #fdc300; font-weight: 600;\">Lettel<\/span> a d\u00e9velopp\u00e9 une gamme d\u00e9di\u00e9e \u00e0 la gestion thermique des armoires \u00e9lectriques, r\u00e9pondant aux besoins croissants en mati\u00e8re de performance, de s\u00e9curit\u00e9 et de fiabilit\u00e9. Cette gamme inclut des solutions telles que des <strong><span style=\"color: #1eb4e6;\">ventilateurs<\/span><\/strong>, des <strong><span style=\"color: #1eb4e6;\">r\u00e9sistances chauffantes<\/span><\/strong> et des <strong><span style=\"color: #1eb4e6;\">thermostats<\/span><\/strong>, permettant de maintenir une temp\u00e9rature optimale \u00e0 l\u2019int\u00e9rieur des armoires.<\/span><\/p>\n<div style=\"display: flex; justify-content: center; margin-top: 20px;\"><a class=\"c-btn btn btn-c1\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/categories-produits\/gestion-thermique-armoire-electrique\/\" target=\"_blank\" rel=\"noopener\">Gamme de gestion thermique<\/a><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n                                    <\/div>\r\n\r\n                                    \r\n<div class=\"c-socials-share\">\r\n  <p class=\"c-ttl\">Partager ou r\u00e9sumer l&rsquo;article&nbsp;:<\/p>\r\n  <ul class=\"c-list\">\r\n    <li>\r\n      <a 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class='table-content_link' href='#quelles-sont-les-causes-des-variations-de-temperature-dans-une-armoire-electrique'>Quelles sont les causes des variations de temp\u00e9rature dans une armoire \u00e9lectrique ?<\/a><li><a class='table-content_link' href='#quels-sont-les-risques-lies-aux-variations-de-temperature-dans-une-armoire-electrique'>Quels sont les risques li\u00e9s aux variations de temp\u00e9rature dans une armoire \u00e9lectrique ?<\/a><li><a class='table-content_link' href='#quels-dispositifs-installer-pour-reguler-la-temperature-dans-son-armoire-electrique'>Quels dispositifs installer pour r\u00e9guler la temp\u00e9rature dans son armoire \u00e9lectrique ?<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#installer-un-thermostat-pour-detecter-les-variations-de-temperature'>Installer un thermostat pour d\u00e9tecter les variations de temp\u00e9rature<\/a><li><a class='table-content_link' href='#installer-un-systeme-de-refroidissement-actif-ou-passif'>Installer un syst\u00e8me de refroidissement actif ou passif<\/a><li><a class='table-content_link' href='#installer-un-systeme-de-chauffage'>Installer un syst\u00e8me de chauffage<\/a><\/ul><li class='table-content_item-lvl-2'><a class='table-content_link' href='#nos-conseils-pour-ameliorer-la-regulation-thermique-de-vos-armoires-electriques'>Nos conseils pour am\u00e9liorer la r\u00e9gulation thermique de vos armoires \u00e9lectriques&nbsp;<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#bien-choisir-lemplacement-de-son-armoire-electrique'>Bien choisir l\u2019emplacement de son armoire \u00e9lectrique<\/a><li><a class='table-content_link' href='#optimiser-lagencement-des-composants'>Optimiser l\u2019agencement des composants<\/a><li><a class='table-content_link' href='#effectuer-une-maintenance-reguliere'>Effectuer une maintenance r\u00e9guli\u00e8re<\/a><\/li><\/ul>                    <\/div>\r\n                <\/div>\r\n            <\/aside>\r\n        <\/div>\r\n\r\n    <\/div>\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-related-products spc-s5 bg-cw\">\r\n\r\n\t\t\t<header class=\"c-heading\">\r\n\t\t\t\t<div class=\"container\">\r\n\t\t\t\t\t<h2 class=\"c-ttl\" class=\"c-ttl\" id=\"thermostats-resistances-et-ventilateurs\">Thermostats, r\u00e9sistances et ventilateurs<\/h2>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/header>\r\n\r\n\t\t\t<div class=\"container\">\r\n\t\t\t\t<div class=\"swiper\" swiper-type=\"3\">\r\n\t\t\t\t\t<div class=\"swiper-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11763'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistance-chauffante-isolee-gta-ri-10-20-30\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"R\u00e9sistance chauffante pour armoire \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-10_resistance_isolee_armoire_electrique.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-RI-230-10\/20\/30<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"resistance-isolee-de-10w-a-30w\">R\u00e9sistance isol\u00e9e de 10W \u00e0 30W<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11781'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/resistances-ptc-armoire-electrique-gta-ri-50-100-150\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"R\u00e9sistance chauffante pour tableau \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-RI-230-50_resistance_tableau_electrique.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-RI-230-50\/100\/150<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"resistance-isolee-de-50w-a-150w\">R\u00e9sistance isol\u00e9e de 50W \u00e0 150W<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11758'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/thermostat-chauffage-nf-gta-thr\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Thermostat de chauffage pour armoire \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THR-0-60_thermostat_chaud.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-THR<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"thermostat-de-chauffage-nf\">Thermostat de chauffage (NF)<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11760'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/thermostat-double-gta-thrv\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Thermostat double pour tableau \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-THRV-0-60_thermostat_double.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-THRV<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"thermostat-double-chaud-froid-nfno\">Thermostat double chaud\/froid (NF+NO)<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11811'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-ventilation-125x125-gta-125-vff\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Grille d'a\u00e9ration avec ventilateur 125x125 pour armoire \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-125-VFF-230_grille_ventilateur_armoire_electrique.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-125-VFF<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"grille-150x150mm-ventilateur-filtre\">Grille 150x150mm + Ventilateur + Filtre<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='11822'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/produit\/grille-aeration-ventilee-250x250-gta-223-vff\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Grille d'a\u00e9ration 250x250 avec ventilateur\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/04\/GTA-223-VFF-230_grille_ventilation_armoire_electrique_223x223.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">GTA-223-VFF<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"grille-250x250mm-ventilateur-filtre\">Grille 250x250mm + Ventilateur + Filtre<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t \r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<div class=\"b-pagi swiper-pagination\"><\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"container container-navi\">\r\n\t\t\t\t\t<div class=\"swiper-button-prev\"><\/div>\r\n\t\t\t\t\t<div class=\"swiper-button-next\"><\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-related-posts bg-cg spc-s3\">\r\n\r\n\t\t<header class=\"c-heading\">\r\n\t\t\t<div class=\"container\">\r\n\t\t\t\t<h2 class=\"c-ttl\" class=\"c-ttl\" id=\"les-autres-cahiers-techniques-lettel\">Les autres cahiers techniques Lettel<\/h2>\r\n\t\t\t<\/div>\r\n\t\t<\/header>\r\n\r\n\t\t<div class=\"container\">\r\n\t\t\t<div class=\"swiper\" swiper-type=\"3\">\r\n\t\t\t\t<div class=\"swiper-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='3985'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/classe-de-precision-compteur-electrique\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"classe-de-precision-compteur-loupe-greyscaled-vignette\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/05\/classe-de-precision-compteur-loupe-greyscaled-vignette.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/05\/classe-de-precision-compteur-loupe-greyscaled-vignette-300x225.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/05\/classe-de-precision-compteur-loupe-greyscaled-vignette-600x450.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/05\/classe-de-precision-compteur-loupe-greyscaled-vignette.jpg 652w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">Classes de pr\u00e9cision d&rsquo;un compteur \u00e9lectrique<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"le-cadre-normatif-et-les-differentes-classes-selon-les-applications\">Le cadre normatif et les diff\u00e9rentes classes selon les applications<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 30 mai 2022<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='4010'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/explication-compteur-electrique\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"compteur-electrique-vignette\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/06\/compteur-electrique-vignette-grey-scale-background.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/06\/compteur-electrique-vignette-grey-scale-background-300x225.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/06\/compteur-electrique-vignette-grey-scale-background.jpg 457w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">L\u2019essentiel du compteur \u00e9lectrique<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"comprendre-lutilite-et-le-fonctionnement-des-compteurs-denergie\">Comprendre l&rsquo;utilit\u00e9 et le fonctionnement des compteurs d&rsquo;\u00e9nergie<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 3 juin 2022<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='9793'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/accessoire-cablage\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Armoire \u00e9lectrique\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec-300x300.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec-150x150.jpg 150w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec-768x768.jpg 768w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec-600x600.jpg 600w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec-100x100.jpg 100w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2025\/06\/armoire-elec.jpg 800w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">Les accessoires de c\u00e2blage<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"enjeux-criteres-de-choix-et-securite\">Enjeux, crit\u00e8res de choix et s\u00e9curit\u00e9<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 19 juin 2025<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='4492'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/stage-lettel.fk-agency.net\/fr\/ressources\/instruments-de-commande-et-de-signalisation\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"voyant-tri-led\" src=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/07\/signalisation-grey-scaled-1.jpg\" srcset=\"https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/07\/signalisation-grey-scaled-1-300x225.jpg 300w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/07\/signalisation-grey-scaled-1-450x338.jpg 450w, https:\/\/stage-lettel.fk-agency.net\/wp-content\/uploads\/2022\/07\/signalisation-grey-scaled-1.jpg 457w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">Les commutateurs et voyants de signalisation<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"la-signification-des-couleurs-et-symboles-utilises-dans-lindustrie\">La signification des couleurs et symboles utilis\u00e9s dans l&rsquo;industrie<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 4 juillet 2022<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"b-pagi swiper-pagination\"><\/div>\r\n\t\t\t<\/div>\r\n\t\t\t<div class=\"container container-navi\">\r\n\t\t\t\t<div class=\"swiper-button-prev\"><\/div>\r\n\t\t\t\t<div class=\"swiper-button-next\"><\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-banner spc-s3 bg-c4\"> \r\n\t<div class=\"container tpl1\">\r\n\r\n\t\t<div class=\"row\">\r\n\t\t\t<div class=\"b-txt col-lg-6\">\r\n\t\t\t\t<h2 class=\"b-ttl\" data-aos=\"fade-up\" class=\"b-ttl\" data-aos=\"fade-up\" id=\"vous-souhaitez-etre-conseille\">Vous souhaitez \u00eatre conseill\u00e9&nbsp;?<\/h2>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"btn btn-c1\" data-aos=\"fade-up\" data-aos-delay=\"150\" href=\"https:\/\/stage-lettel.fk-agency.net\/fr\/contact\/\">\r\n\t\t\t\t\t\t\tContactez-nous\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\r\n\t<\/div>\r\n<\/section>\r\n\r\n","protected":false},"excerpt":{"rendered":"Optimisation du rendement et r\u00e9duction de la maintenance","protected":false},"author":2,"featured_media":9243,"template":"","class_list":["post-9362","ressources","type-ressources","status-publish","has-post-thumbnail","hentry","ress-format-cahier-technique"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comment 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