{"id":9807,"date":"2025-02-10T17:18:13","date_gmt":"2025-02-10T16:18:13","guid":{"rendered":"https:\/\/lettel.com\/?post_type=ressources&#038;p=9807"},"modified":"2026-05-12T16:11:16","modified_gmt":"2026-05-12T14:11:16","slug":"decret-bacs","status":"publish","type":"ressources","link":"https:\/\/lettel.com\/fr\/ressources\/decret-bacs\/","title":{"rendered":"Comprendre le D\u00e9cret BACS"},"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-5 col-lg-6\">\r\n\t\t\t\t<div class=\"blc-heroSingle_txt\">\r\n\t\t\t\t\t<div class=\"blc-heroSingle_dates\">\r\n\t\t\t\t\t\t<span class=\"blc-heroSingle_supttl\">Publi\u00e9 le 10 f\u00e9vrier 2025&nbsp;&#8211;<\/span>\r\n\t\t\t\t\t\t<span class=\"blc-heroSingle_supttl\">&nbsp;Modifi\u00e9 le 12 mai 2026<\/span>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<h1 class='blc-heroSingle_ttl' class='blc-heroSingle_ttl' id=\"comprendre-le-decret-bacs\">Comprendre le D\u00e9cret BACS<\/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-6 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=\"immeubles BACS\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/03\/BACS.webp\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/03\/BACS-300x200.webp 300w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/03\/BACS-768x512.webp 768w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/03\/BACS-600x400.webp 600w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/03\/BACS.webp 1000w\" 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\t<div class=\"container\">\r\n\r\n\t\t<div class=\"row\">\r\n\t\t\t<div class=\"col-lg-8\">\r\n\t\t\t\t\t<div class=\"editor\">\r\n\t\t\t\t\t\t<p style=\"font-weight: 600;\"><span style=\"color: #1b1945;\"><a href=\"https:\/\/www.ademe.fr\/presse\/communique-national\/vers-lefficacite-energetique-le-parc-tertiaire-francais-accelere-le-pas\/\">Selon l\u2019Ademe<\/a> (Agence de la transition \u00e9cologique), le parc tertiaire est responsable, en France, de 17 % de la consommation \u00e9nerg\u00e9tique finale du pays. Afin de r\u00e9duire ce taux et d\u2019engager concr\u00e8tement les acteurs du tertiaire dans la transition \u00e9nerg\u00e9tique, plusieurs r\u00e9glementations ont \u00e9t\u00e9 mises en place. Parmi elles : le d\u00e9cret BACS. Mais quelles sont les mesures de cette directive ? Quels sont les b\u00e2timents concern\u00e9s ? Et comment r\u00e9ussir cette mise en conformit\u00e9 r\u00e9glementaire ?<\/span>&nbsp;<\/p>\n<p style=\"font-weight: 600;\"><span style=\"color: #fdc300; font-weight: 600;\">Lettel<\/span> <span style=\"color: #1b1945;\">vous dit tout sur le d\u00e9cret BACS, son champ d\u2019application, ses mesures phares et ses enjeux, ainsi que les solutions \u00e0 adopter d\u00e8s maintenant pour garantir la mise en conformit\u00e9 r\u00e9glementaire de vos b\u00e2timents tertiaires en toute simplicit\u00e9.<\/span><\/p>\n<h2 id=\"quest-ce-que-le-decret-bacs\">Qu\u2019est-ce que le d\u00e9cret BACS ?&nbsp;<\/h2>\n<p><span style=\"font-weight: 400;\">Le <strong>d\u00e9cret BACS<\/strong> (<\/span><i><span style=\"font-weight: 400;\">Building automation and control system &#8211; <\/span><\/i><span style=\"font-weight: 400;\">syst\u00e8me d\u2019automatisation et de contr\u00f4le des b\u00e2timents) est un texte r\u00e9glementaire issu du <\/span><a href=\"https:\/\/lettel.com\/fr\/ressources\/decret-tertiaire\/\"><span style=\"font-weight: 400;\">d\u00e9cret tertiaire<\/span><\/a><span style=\"font-weight: 400;\">.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour rappel, <\/span><a href=\"https:\/\/www.ecologie.gouv.fr\/politiques-publiques\/eco-energie-tertiaire-eet\"><span style=\"font-weight: 400;\">le Dispositif \u00c9co \u00c9nergie Tertiaire (DEET)<\/span><\/a><span style=\"font-weight: 400;\">, mis en place dans le cadre de <\/span><a href=\"https:\/\/www.ecologie.gouv.fr\/politiques-publiques\/loi-portant-evolution-du-logement-lamenagement-du-numerique-elan\"><span style=\"font-weight: 400;\">la loi \u00c9LAN<\/span><\/a><span style=\"font-weight: 400;\"> (\u00c9volution du Logement, de l\u2019Am\u00e9nagement et du Num\u00e9rique), ambitionne de <\/span><b>r\u00e9duire de 60 % la consommation \u00e9nerg\u00e9tique <\/b><span style=\"font-weight: 400;\">des b\u00e2timents tertiaires de plus de 1 000 m2 \u00e0 l\u2019horizon 2050.<\/span><\/p>\n<p><a href=\"https:\/\/www.legifrance.gouv.fr\/jorf\/id\/JORFTEXT000047422489\"><span style=\"font-weight: 400;\">Le d\u00e9cret BACS<\/span><\/a><span style=\"font-weight: 400;\">, publi\u00e9 en 2020 et entr\u00e9 en vigueur en juillet 2021, impose quant \u00e0 lui aux propri\u00e9taires de certains b\u00e2timents tertiaires non r\u00e9sidentiels d\u2019<\/span><b>installer un syst\u00e8me d\u2019automatisation et de contr\u00f4le \u00e9nerg\u00e9tique<\/b><span style=\"font-weight: 400;\">. Il d\u00e9finit ainsi les moyens \u00e0 d\u00e9ployer pour r\u00e9pondre aux objectifs de r\u00e9duction de consommation \u00e9nerg\u00e9tique impos\u00e9s par le d\u00e9cret tertiaire.&nbsp;<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-building-in-modern-city-sustainable-2024-01-15-17-52-38-utc1.jpg\" alt=\"B\u00e2timent eco resposnable\" \/> &nbsp;<\/p>\n<h3 id=\"quels-sont-les-batiments-concernes-par-le-decret-bacs\">Quels sont les b\u00e2timents concern\u00e9s par le d\u00e9cret BACS ?&nbsp;<\/h3>\n<p><span style=\"font-weight: 400;\">Sont concern\u00e9s par le <strong>d\u00e9cret BACS<\/strong> tous<\/span><b> les b\u00e2timents tertiaires neufs et existants, publics et priv\u00e9s<\/b><span style=\"font-weight: 400;\">, \u00e9quip\u00e9s de syst\u00e8mes de <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/resistances-chauffantes-armoire-electrique\/\">chauffage <\/a>et de climatisation, combin\u00e9s ou non \u00e0 un syst\u00e8me de <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/ventilation-armoire\/\">ventilation<\/a>, et dont la puissance nominale utile est sup\u00e9rieure \u00e0 290 kW (pour l&rsquo;\u00e9ch\u00e9ance 2025) ou sup\u00e9rieure \u00e0 70 kW (pour l\u2019\u00e9ch\u00e9ance 2027).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cela inclut par cons\u00e9quent :&nbsp;<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les locaux commerciaux<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les bureaux<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les \u00e9tablissements scolaires et acad\u00e9miques<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les magasins, supermarch\u00e9s et centres commerciaux<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les h\u00f4tels et restaurants<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les infrastructures de sant\u00e9 (h\u00f4pitaux, cliniques, Ehpad\u2026)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les b\u00e2timents publics et administratifs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les r\u00e9sidences de services (r\u00e9sidences de tourisme, r\u00e9sidences seniors, r\u00e9sidences \u00e9tudiantes\u2026)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les gares routi\u00e8res, ferroviaires, maritimes et fluviales<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les a\u00e9roports<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les sites industriels<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les lieux culturels (th\u00e9\u00e2tres, centres culturels\u2026) et sportifs (gymnases, salles de sport\u2026)<\/span><\/li>\n<\/ul>\n<h3 id=\"quelles-sont-les-mesures-imposees-par-le-decret-bacs\">Quelles sont les mesures impos\u00e9es par le d\u00e9cret BACS ?<\/h3>\n<p><span style=\"font-weight: 400;\">La directive <strong>BACS<\/strong> impose<\/span><b> la mise en place de syst\u00e8mes d\u2019automatisation et de contr\u00f4le <\/b><span style=\"font-weight: 400;\">des \u00e9quipements \u00e9nerg\u00e9tiques<\/span> <span style=\"font-weight: 400;\">au sein des b\u00e2timents concern\u00e9s.&nbsp;&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour les b\u00e2timents ayant une puissance <strong>CVC<\/strong> sup\u00e9rieure \u00e0 290 kW, ce dispositif doit avoir \u00e9t\u00e9 install\u00e9 avant le 1er janvier 2025. Pour les b\u00e2timents dont la puissance des syst\u00e8mes d\u00e9passe les 70 kW,<\/span><b> l\u2019\u00e9ch\u00e9ance est fix\u00e9e au 1er janvier 2027.<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les b\u00e2timents existants assujettis ont ainsi l\u2019obligation de mettre en place une r\u00e9gulation \u00e0 chaque changement ou installation d\u2019un syst\u00e8me technique. <\/span>&nbsp;<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les b\u00e2timents neufs ont l\u2019obligation de mettre en place un syst\u00e8me de r\u00e9gulation sur les syst\u00e8mes techniques.<br \/>\n<\/span><\/li>\n<\/ul>\n<p style=\"background-color: #1b1945; color: #fdc300; padding: 40px; font-weight: 500;\"><span style=\"color: #ffffff;\">\u2192 \u00c0 savoir<\/span><br \/>\n<span style=\"color: #ffffff;\">&nbsp;<\/span><br \/>\n<span style=\"color: #ffffff;\">Les b\u00e2timents neufs concern\u00e9s sont tous ceux dont le permis de construire a \u00e9t\u00e9 d\u00e9pos\u00e9 un an apr\u00e8s la parution du d\u00e9cret, soit au 21 juillet 2021.&nbsp;<\/span><br \/>\n<span style=\"color: #ffffff;\">&nbsp;<\/span><br \/>\n<span style=\"color: #ffffff;\">Ceux dont le permis de construire a \u00e9t\u00e9 d\u00e9pos\u00e9 avant cette date doivent se mettre en conformit\u00e9 en tant que b\u00e2timent existant.&nbsp;<\/span><\/p>\n<p><b><br \/>\nLes syst\u00e8mes techniques devant \u00eatre rattach\u00e9s au BACS sont :&nbsp;<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">le <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/resistances-chauffantes-armoire-electrique\/\">chauffage<\/a><\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">la climatisation&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">la <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/ventilation-armoire\/\">ventilation<\/a>&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">l\u2019<a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/eclairage\/\">\u00e9clairage int\u00e9gr\u00e9<\/a>&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">la production d&rsquo;\u00e9lectricit\u00e9 in situ&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">la production d\u2019eau chaude sanitaire&nbsp;<\/span><\/li>\n<\/ul>\n<p><b>Attention<\/b><span style=\"font-weight: 400;\">, depuis le 7 avril 2023, le d\u00e9cret inclut une nouvelle disposition exigeant <\/span><b>une<\/b> <b>inspection p\u00e9riodique obligatoire <\/b><span style=\"font-weight: 400;\">des syst\u00e8mes de pilotage, tous les 2 \u00e0 5 ans. Celle-ci implique notamment de surveiller son \u00e9talonnage et son fonctionnement afin d\u2019assurer sa performance et d\u2019optimiser son r\u00e9glage en fonction des besoins des occupants.<\/span><\/p>\n<p style=\"background-color: #1b1945; color: white; padding: 40px; font-weight: 500;\"><span style=\"color: #ffffff;\">\u2192 \u00c0 savoir<\/span><br \/>\n<span style=\"color: #1eb4e6;\">&nbsp;<\/span><br \/>\nSi l\u2019installation d\u2019un syst\u00e8me BACS n\u2019est pas viable sur le plan technique ou \u00e9conomique, ou qu\u2019elle ne permettra pas de b\u00e9n\u00e9ficier d\u2019un retour sur investissement dans les 10 prochaines ann\u00e9es, il est possible de b\u00e9n\u00e9ficier d\u2019une d\u00e9rogation, qui doit toutefois \u00eatre attest\u00e9e par une \u00e9tude approfondie.<\/p>\n<h2 id=\"comment-assurer-sa-mise-en-conformite-avec-le-decret-bacs\">Comment assurer sa mise en conformit\u00e9 avec le d\u00e9cret BACS ?&nbsp;<\/h2>\n<p><span style=\"font-weight: 400;\">Pour \u00eatre en conformit\u00e9 avec le <strong>d\u00e9cret BACS<\/strong>, le syst\u00e8me install\u00e9 doit pouvoir :&nbsp;<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Suivre, enregistrer et analyser les consommations \u00e9nerg\u00e9tiques en continu et en temps r\u00e9el ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Optimiser les \u00e9quipements de fa\u00e7on automatique pour maximiser leur rendement ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u00e9tecter les anomalies, les d\u00e9rives et les pertes d\u2019efficacit\u00e9 \u00e9nerg\u00e9tique ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Interagir avec d\u2019autres syst\u00e8mes techniques du b\u00e2timent ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Conserver les donn\u00e9es pendant 5 ans de fa\u00e7on d\u00e9mat\u00e9rialis\u00e9e ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Comparer la consommation par rapport \u00e0 une valeur de r\u00e9f\u00e9rence ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00catre interop\u00e9rable, \u00e0 l\u2019aide de protocoles ouverts, tels que <\/span><a href=\"https:\/\/lettel.com\/fr\/ressources\/communication-modbus\/\"><span style=\"font-weight: 400;\">Modbus<\/span><\/a><span style=\"font-weight: 400;\">, pour interagir avec d\u2019autres syst\u00e8mes ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Favoriser la gestion autonome de tous les syst\u00e8mes techniques du b\u00e2timent.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">La solution recommand\u00e9e par l\u2019<strong>ADEME<\/strong> pour assurer cette mise en conformit\u00e9 est l\u2019installation d\u2019<\/span><b>un syst\u00e8me de GTB (Gestion Technique du B\u00e2timent)<\/b><span style=\"font-weight: 400;\">, qui permet de contr\u00f4ler et de commander l\u2019int\u00e9gralit\u00e9 des syst\u00e8mes techniques du b\u00e2timent. Celle-ci doit \u00eatre de classe A ou B, selon la norme NF EN ISO 52120-1.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette solution centralis\u00e9e, <strong>intelligente<\/strong> et <strong>interop\u00e9rable<\/strong> est compos\u00e9e d\u2019outils de mesure et d\u2019action, tels que des d\u00e9tecteurs, des capteurs et des actionnaires. Gr\u00e2ce \u00e0 ces derniers, elle peut recevoir les donn\u00e9es de consommation des \u00e9quipements concern\u00e9s (<a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/resistances-chauffantes-armoire-electrique\/\">chauffage<\/a>, <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/ventilation-armoire\/\">ventilation<\/a>, climatisation)\u2026 Ce dispositif analyse ensuite avec pr\u00e9cision leur efficacit\u00e9 \u00e9nerg\u00e9tique, en la comparant \u00e0 des valeurs de r\u00e9f\u00e9rence. Ce syst\u00e8me hautement performant est \u00e9galement capable d\u2019identifier les failles \u00e9ventuelles et de cibler les am\u00e9liorations et actions correctives n\u00e9cessaires pour optimiser la gestion \u00e9nerg\u00e9tique du b\u00e2timent.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour r\u00e9pondre aux exigences du <strong>d\u00e9cret BACS<\/strong>, il est donc imp\u00e9ratif de commencer par <\/span><b>\u00e9valuer l\u2019efficacit\u00e9 des syst\u00e8mes de pilotage et de r\u00e9gulation actuels<\/b><span style=\"font-weight: 400;\"> afin de savoir s\u2019ils sont conformes \u00e0 la r\u00e9glementation. Dans le cas contraire, il sera n\u00e9cessaire de les mettre \u00e0 niveau.&nbsp;<\/span><\/p>\n<p><img decoding=\"async\" class=\"wp-image-9838 size-full\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme.jpg\" alt=\"Visuel de femme travaillant sur un tableau graphique de statistiques\" width=\"2560\" height=\"1707\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme.jpg 2560w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-300x200.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-1024x683.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-768x512.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-1536x1024.jpg 1536w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-2048x1366.jpg 2048w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/Analyse-graphique-femme-600x400.jpg 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<h2 id=\"quels-sont-les-enjeux-lies-au-decret-bacs\">Quels sont les enjeux li\u00e9s au d\u00e9cret BACS ?&nbsp;<\/h2>\n<p><span style=\"font-weight: 400;\">Le<strong> d\u00e9cret BACS<\/strong> a ainsi vocation \u00e0 permettre aux propri\u00e9taires concern\u00e9s de suivre, d\u2019enregistrer et d\u2019analyser de pr\u00e8s les donn\u00e9es de consommation \u00e9nerg\u00e9tique de leurs \u00e9quipements en temps r\u00e9el. Ils pourront de cette fa\u00e7on <\/span><b>corriger rapidement les \u00e9ventuelles d\u00e9rives de consommation<\/b><span style=\"font-weight: 400;\"> et optimiser la totalit\u00e9 de leurs d\u00e9penses \u00e9nerg\u00e9tiques.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Au-del\u00e0 des enjeux r\u00e9glementaires, la mise en conformit\u00e9 avec le <strong>d\u00e9cret BACS<\/strong> offre plusieurs avantages aux propri\u00e9taires des b\u00e2timents tertiaires concern\u00e9s. En respectant cette r\u00e9glementation, ces derniers peuvent en effet :&nbsp;<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>R\u00e9aliser des \u00e9conomies<\/b><span style=\"font-weight: 400;\"> : gr\u00e2ce au suivi rigoureux de la consommation \u00e9nerg\u00e9tique, les propri\u00e9taires peuvent consid\u00e9rablement r\u00e9duire leurs d\u00e9penses \u00e9nerg\u00e9tiques ainsi que leurs co\u00fbts de maintenance. En effet, les \u00e9quipements de <strong>CVC<\/strong> sont en effet les plus \u00e9nergivores &#8211; \u00e0 titre d\u2019exemple, le <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/resistances-chauffantes-armoire-electrique\/\">chauffage<\/a> est \u00e0 lui seul responsable de <\/span><a href=\"https:\/\/www.observatoireclimat-hautsdefrance.org\/Les-indicateurs\/Consommation-d-energie\/Tertiaire-consommation-d-energie-par-usage\"><span style=\"font-weight: 400;\">49 % des consommations du tertiaire<\/span><\/a><span style=\"font-weight: 400;\">.&nbsp;<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Prolonger la dur\u00e9e de vie des installations<\/b><span style=\"font-weight: 400;\"> : la d\u00e9tection pr\u00e9coce des dysfonctionnements facilit\u00e9e par le syst\u00e8me de pilotage install\u00e9 permet d\u2019\u00e9viter l\u2019usure pr\u00e9matur\u00e9e des \u00e9quipements et installations \u00e9nerg\u00e9tiques.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Am\u00e9liorer le confort des occupants : <\/b><span style=\"font-weight: 400;\">en optimisant la gestion du chauffage, de la ventilation et de la climatisation, les propri\u00e9taires pourront facilement am\u00e9liorer le confort des occupants et usagers au sein du b\u00e2timent.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li aria-level=\"1\"><b>Contribuer \u00e0 la transition \u00e9nerg\u00e9tique : <\/b><span style=\"font-weight: 400;\">se conformer au d\u00e9cret BACS est \u00e9galement une mani\u00e8re efficace et tangible d\u2019acc\u00e9l\u00e9rer la d\u00e9carbonation de son b\u00e2timent, de r\u00e9duire l\u2019impact environnemental de son activit\u00e9 et de contribuer \u00e0 l\u2019atteinte des objectifs de neutralit\u00e9 carbone.&nbsp;<\/span><\/li>\n<\/ul>\n<h2 id=\"lettel-vous-accompagne-dans-votre-mise-en-conformite-avec-le-decret-bacs\">Lettel vous accompagne dans votre mise en conformit\u00e9 avec le d\u00e9cret BACS<\/h2>\n<p><img decoding=\"async\" class=\"alignleft\" style=\"margin-top: 30px;\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/reduction-de-la-consommation-denergie-dans-un-batiment-commercial-format-horizontal-style-realiste-1.jpg\" alt=\"r\u00e9duction de la consommation d'\u00e9nergie dans un b\u00e2timent commercial\" \/><br \/>\n<span style=\"font-weight: 400;\">Engag\u00e9 dans la transition \u00e9nerg\u00e9tique, <span style=\"color: #fdc300; font-weight: 600;\">Lettel<\/span> accompagne au quotidien ses clients dans leur mise en conformit\u00e9 avec <\/span><a href=\"https:\/\/lettel.com\/fr\/decret-tertiaire\/\"><span style=\"font-weight: 400;\">le d\u00e9cret tertiaire et le d\u00e9cret BACS<\/span><\/a><span style=\"font-weight: 400;\">, gr\u00e2ce \u00e0 des produits adapt\u00e9s et performants.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sp\u00e9cialement con\u00e7ue pour aider les acteurs assujettis \u00e0 se conformer \u00e0 ces directives europ\u00e9ennes, notre solution de mesure multi-d\u00e9part <\/span><a href=\"https:\/\/lettel.com\/fr\/solution-enerclip\/\">Enerclip<\/a><span style=\"font-weight: 400;\"> est dot\u00e9e de l\u2019ensemble des fonctionnalit\u00e9s impos\u00e9es par le <strong>d\u00e9cret BACS<\/strong>.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Elle vous permet de suivre, mesurer et optimiser la consommation \u00e9nerg\u00e9tique de jusqu\u2019\u00e0 32 <\/span><a href=\"https:\/\/enolec.com\/produits\/compteur-monophase-triphase\/\"><span style=\"font-weight: 400;\">circuits \u00e9lectriques triphas\u00e9s<\/span><\/a><span style=\"font-weight: 400;\"> sur votre b\u00e2timent. Les donn\u00e9es de mesure sont centralis\u00e9es et retransmises sur un afficheur et un logiciel, pour un suivi pr\u00e9cis, simple, en temps r\u00e9el.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Voici les avantages de notre solution <a href=\"https:\/\/lettel.com\/fr\/solution-enerclip\/\">Enerclip<\/a> dans le cadre de votre mise en conformit\u00e9 avec le d\u00e9cret BACS :&nbsp;<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Des mesures \u00e9lectriques <\/b><a href=\"https:\/\/lettel.com\/fr\/ressources\/classe-de-precision-compteur-electrique\/\"><span style=\"font-weight: 400;\">de haute pr\u00e9cision (classe 0,5s)<\/span><\/a><span style=\"font-weight: 400;\"> ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u2019analyse<\/b> <a href=\"https:\/\/lettel.com\/fr\/ressources\/perturbations_harmoniques\/\">des perturbations d\u2019harmoniques<\/a> <span style=\"font-weight: 400;\">jusqu\u2019au rang 63 ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Une installation rapide et intuitive <\/b><span style=\"font-weight: 400;\">: la solution se distingue par sa conception modulaire compacte, garantissant une <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">mise en place simplifi\u00e9e et un raccordement efficace<\/a> via RJ12. Son d\u00e9ploiement ne n\u00e9cessite aucune interruption des circuits en activit\u00e9 : les perturbations sont donc r\u00e9duites et la continuit\u00e9 op\u00e9rationnelle est assur\u00e9e ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Un dispositif compact peu encombrant <\/b><span style=\"font-weight: 400;\">: les compteurs <a href=\"https:\/\/lettel.com\/fr\/solution-enerclip\/\">Enerclip<\/a> occupent un <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">espace r\u00e9duit dans vos armoires \u00e9lectriques<\/a> et s\u2019int\u00e8grent parfaitement aux sp\u00e9cificit\u00e9s de chaque installation ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Un suivi et une gestion simplifi\u00e9s <\/b><span style=\"font-weight: 400;\">: un afficheur encastrable unique, dot\u00e9 d\u2019une interface intuitive, offre une visualisation claire des donn\u00e9es sous forme de graphiques en barres, de courbes sinuso\u00efdales ou de vecteurs. Associ\u00e9 \u00e0 un logiciel performant, il facilite l\u2019analyse en temps r\u00e9el ;&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Un pilotage pr\u00e9cis et r\u00e9actif <\/b><span style=\"font-weight: 400;\">: les sorties relais simplifient le contr\u00f4le des circuits, avec une activation \u00e0 distance ou une programmation automatique en fonction de seuils pr\u00e9d\u00e9finis.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Des modules avanc\u00e9s aux fonctionnalit\u00e9s annexes <\/b><span style=\"font-weight: 400;\">: pour r\u00e9pondre \u00e0 tous types de besoins, certains mod\u00e8les int\u00e8grent des options suppl\u00e9mentaires telles que la mesure de temp\u00e9rature ou le contr\u00f4le d\u2019isolement, pour une surveillance encore plus compl\u00e8te.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Gr\u00e2ce \u00e0 cette solution intelligente et cl\u00e9 en main, vous pourrez ainsi r\u00e9pondre aux exigences du <strong>d\u00e9cret BACS<\/strong> et optimiser la consommation \u00e9nerg\u00e9tique de vos \u00e9quipements (climatisation, ventilation, chauffage, \u00e9clairage, eau chaude\u2026) et de l\u2019ensemble de votre b\u00e2timent tertiaire.&nbsp;<\/span>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div style=\"display: flex; justify-content: center;\"><a class=\"c-btn btn btn-c1\" href=\"https:\/\/lettel.com\/fr\/solution-enerclip\/\" target=\"_blank\" rel=\"noopener\">D\u00e9couvrez les solutions Enerclip<\/a><\/div>\n<p>&nbsp;<\/p>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\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 href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&#038;url=https:\/\/lettel.com\/fr\/ressources\/decret-bacs\/&#038;title=Comprendre le D\u00e9cret BACS\" target=\"_blank\" onclick=\"javascript:window.open(this.href, '', 'menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=600,width=600');return false;\" title=\"Linkedin\">\r\n        <i class=\"bi bi-linkedin\"><\/i>\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"mailto:?subject=Comprendre le D\u00e9cret BACS&amp;body=https:\/\/lettel.com\/fr\/ressources\/decret-bacs\/\" title=\"Email\">\r\n        <i class=\"bi bi-envelope-fill\"><\/i>\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"https:\/\/chatgpt.com\/?q=Peux-tu%20me%20faire%20un%20r%C3%A9sum%C3%A9%20de%20l%27article%20https%3A%2F%2Flettel.com%2Ffr%2Fressources%2Fdecret-bacs%2F%20en%2050%20mots%2C%20en%20pr%C3%A9cisant%20les%20%C3%A9l%C3%A9ments%20cl%C3%A9s%20%C3%A0%20retenir%20%3F\" target=\"_blank\" rel=\"noopener\" title=\"ChatGPT\">\r\n        <img decoding=\"async\" class=\"ico\" src=\"https:\/\/lettel.com\/wp-content\/themes\/lettel\/assets\/dist\/svg\/ico-chatgpt-blue.svg\" alt=\"ChatGPT\">\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"https:\/\/claude.ai\/new?q=Peux-tu%20me%20faire%20un%20r%C3%A9sum%C3%A9%20de%20l%27article%20https%3A%2F%2Flettel.com%2Ffr%2Fressources%2Fdecret-bacs%2F%20en%2050%20mots%2C%20en%20pr%C3%A9cisant%20les%20%C3%A9l%C3%A9ments%20cl%C3%A9s%20%C3%A0%20retenir%20%3F\" target=\"_blank\" rel=\"noopener\" title=\"Claude\">\r\n        <img decoding=\"async\" class=\"ico\" src=\"https:\/\/lettel.com\/wp-content\/themes\/lettel\/assets\/dist\/svg\/ico-claude-blue.svg\" alt=\"Claude\">\r\n      <\/a>\r\n    <\/li>\r\n\r\n      <\/ul>\r\n<\/div>\t\t\t\t\t\t\t\t<\/div>\r\n\r\n\t\t\t<aside class=\"col-lg-3 offset-lg-1 d-none d-lg-block \">\r\n\t\t\t\t\t<div class=\"c-aside-wrp\">\r\n\t\t\t\t\t\t\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 href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&#038;url=https:\/\/lettel.com\/fr\/ressources\/decret-bacs\/&#038;title=Comprendre le D\u00e9cret BACS\" target=\"_blank\" onclick=\"javascript:window.open(this.href, '', 'menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=600,width=600');return false;\" title=\"Linkedin\">\r\n        <i class=\"bi bi-linkedin\"><\/i>\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"mailto:?subject=Comprendre le D\u00e9cret BACS&amp;body=https:\/\/lettel.com\/fr\/ressources\/decret-bacs\/\" title=\"Email\">\r\n        <i class=\"bi bi-envelope-fill\"><\/i>\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"https:\/\/chatgpt.com\/?q=Peux-tu%20me%20faire%20un%20r%C3%A9sum%C3%A9%20de%20l%27article%20https%3A%2F%2Flettel.com%2Ffr%2Fressources%2Fdecret-bacs%2F%20en%2050%20mots%2C%20en%20pr%C3%A9cisant%20les%20%C3%A9l%C3%A9ments%20cl%C3%A9s%20%C3%A0%20retenir%20%3F\" target=\"_blank\" rel=\"noopener\" title=\"ChatGPT\">\r\n        <img decoding=\"async\" class=\"ico\" src=\"https:\/\/lettel.com\/wp-content\/themes\/lettel\/assets\/dist\/svg\/ico-chatgpt-blue.svg\" alt=\"ChatGPT\">\r\n      <\/a>\r\n    <\/li>\r\n    <li>\r\n      <a href=\"https:\/\/claude.ai\/new?q=Peux-tu%20me%20faire%20un%20r%C3%A9sum%C3%A9%20de%20l%27article%20https%3A%2F%2Flettel.com%2Ffr%2Fressources%2Fdecret-bacs%2F%20en%2050%20mots%2C%20en%20pr%C3%A9cisant%20les%20%C3%A9l%C3%A9ments%20cl%C3%A9s%20%C3%A0%20retenir%20%3F\" target=\"_blank\" rel=\"noopener\" title=\"Claude\">\r\n        <img decoding=\"async\" class=\"ico\" src=\"https:\/\/lettel.com\/wp-content\/themes\/lettel\/assets\/dist\/svg\/ico-claude-blue.svg\" alt=\"Claude\">\r\n      <\/a>\r\n    <\/li>\r\n\r\n      <\/ul>\r\n<\/div>\t\t\t\t\t\t<div class=\"c-nav\">\r\n\t\t\t\t\t\t\t\t<p class=\"c-nav_ttl\">Sommaire<\/p>\r\n\t\t\t\t\t\t\t\t<ul class='table-content'><li class='table-content_item-lvl-2'><a class='table-content_link' href='#quest-ce-que-le-decret-bacs'>Qu\u2019est-ce que le d\u00e9cret BACS ?&nbsp;<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#quels-sont-les-batiments-concernes-par-le-decret-bacs'>Quels sont les b\u00e2timents concern\u00e9s par le d\u00e9cret BACS ?&nbsp;<\/a><li><a class='table-content_link' href='#quelles-sont-les-mesures-imposees-par-le-decret-bacs'>Quelles sont les mesures impos\u00e9es par le d\u00e9cret BACS ?<\/a><\/ul><li class='table-content_item-lvl-2'><a class='table-content_link' href='#comment-assurer-sa-mise-en-conformite-avec-le-decret-bacs'>Comment assurer sa mise en conformit\u00e9 avec le d\u00e9cret BACS ?&nbsp;<\/a><li><a class='table-content_link' href='#quels-sont-les-enjeux-lies-au-decret-bacs'>Quels sont les enjeux li\u00e9s au d\u00e9cret BACS ?&nbsp;<\/a><li><a class='table-content_link' href='#lettel-vous-accompagne-dans-votre-mise-en-conformite-avec-le-decret-bacs'>Lettel vous accompagne dans votre mise en conformit\u00e9 avec le d\u00e9cret BACS<\/a><\/li><\/ul>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t<\/aside>\r\n\t\t<\/div>\r\n\r\n\t<\/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=\"les-produits-de-la-solution-enerclip\">Les produits de la solution Enerclip <\/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='1692'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/centrale-multi-entrees-map4-34rj\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"centrale-mesure-map4-34rj\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/01\/centrale-mesure-map4-34rj.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\">MAP4-34RJ<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"centrale-de-mesure-modulaire-multi-entrees-max-12-pour-tc-enerclip\">Centrale de mesure modulaire multi-entr\u00e9es (max 12) pour TC Enerclip<\/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='1114'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/module-mesure-enerclip-msc-n2\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"module-mesure-enerclip-msc-n2\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2.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\">MSC-N2<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"centrale-de-mesure-pour-tc-enerclip-modbus-et-sortie-relais\">Centrale de mesure pour TC Enerclip &#8211; Modbus et sortie relais<\/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='7709'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/module-mesure-energie-msc-m4\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"module-mesure-enerclip-msc-n2\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MSC-N2.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\">MSC-M4<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"centrale-de-mesure-enerclip-et-modules-dextension\">Centrale de mesure Enerclip et modules d&rsquo;extension<\/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='7733'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/afficheur-encastrable-enerclip-msc-de\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"afficheur-enerclip-msc-de\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/02\/MSC-DE-avec-logo-Enerclip.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\">MSC-DE<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"afficheur-encastrable-9696-mm-pour-piloter-32-modules-de-mesure\">Afficheur encastrable 96&#215;96 mm pour piloter 32 modules de mesure<\/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='1157'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/transformateur-courant-msc-tco\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"tore-ouvrant-msc-tco-200\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/msc-tco-200.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\">MSC-TCO<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"tc-ouvrants-enerclip-5-modeles-de-5-a-600a\">TC ouvrants Enerclip \u2013 5 mod\u00e8les de 5 \u00e0 600A<\/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='1161'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/boucle-rogowski-msc-tcr\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Boucle de courant Rogowski ouvrante et flexible\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte-avec-logo-Enerclip.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\">MSC-TCR<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"tc-rogowski-enerclip-5-modeles-jusqua-6000a\">TC Rogowski Enerclip \u2013 5 mod\u00e8les jusqu&rsquo;\u00e0 6000A<\/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:\/\/lettel.com\/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=\"Classes de pr\u00e9cision des compteurs d'\u00e9nergie\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie-300x217.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie-1024x739.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie-768x555.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie-600x433.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/12\/precision_compteur_energie.jpg 1094w\" 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='9362'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/regulation-thermique-armoire-electrique\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Cam\u00e9ra thermique\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel-300x165.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel-1024x563.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel-768x422.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel-1536x845.jpg 1536w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel-600x330.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/12\/gta_lettel.jpg 1600w\" 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\">Pourquoi r\u00e9guler la temp\u00e9rature d&rsquo;une armoire \u00e9lectrique ?<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"optimisation-du-rendement-et-reduction-de-la-maintenance\">Optimisation du rendement et r\u00e9duction de la maintenance<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 27 novembre 2024<\/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='2312'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/communication-modbus\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Communication Modbus\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-300x215.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-1024x734.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-768x551.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-600x430.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication.jpg 1527w\" 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\">La communication RS485 Modbus<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"comprendre-ce-protocole-dechanges-dinformations-entre-equipements\">Comprendre ce protocole d&rsquo;\u00e9changes d&rsquo;informations entre \u00e9quipements<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 22 avril 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='9396'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/decret-tertiaire\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Comprendre le d\u00e9cret tertiaire\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc-300x194.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc-600x388.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc.jpg 735w\" 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\">D\u00e9cret tertiaire : d\u00e9finition, objectif et application<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"le-champ-dapplication-les-exigences-et-lenjeu-envirennomental\">Le champ d&rsquo;application, les exigences et l&rsquo;enjeu envirennomental<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 4 d\u00e9cembre 2024<\/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<a class=\"btn btn-c1\" data-aos=\"fade-up\" data-aos-delay=\"150\" href=\"https:\/\/lettel.com\/fr\/contact\/\">Contactez-nous<\/a>\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":"Champ d\u2019application, mesures phares et enjeux","protected":false},"author":3,"featured_media":7974,"template":"","class_list":["post-9807","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 v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comprendre le D\u00e9cret BACS<\/title>\n<meta name=\"description\" content=\"Building Automation and Control System = syst\u00e8me d\u2019automatisation et de contr\u00f4le des b\u00e2timents \u2192 champ d\u2019application, mesures phares, enjeux\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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