{"id":4492,"date":"2022-07-04T16:01:39","date_gmt":"2022-07-04T14:01:39","guid":{"rendered":"https:\/\/lettel.com\/?post_type=ressources&#038;p=4492"},"modified":"2026-05-12T16:24:21","modified_gmt":"2026-05-12T14:24:21","slug":"instruments-de-commande-et-de-signalisation","status":"publish","type":"ressources","link":"https:\/\/lettel.com\/fr\/ressources\/instruments-de-commande-et-de-signalisation\/","title":{"rendered":"Les commutateurs et voyants de signalisation"},"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 4 juillet 2022&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=\"la-commutation-et-la-signalisation-lumineuse\">La commutation et la signalisation lumineuse<\/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=\"cahier-technique-signalisation\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-300x200.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-600x400.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-1024x683.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-768x512.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-1536x1024.jpg 1536w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/shutterstock_1018323853-2048x1366.jpg 2048w\" 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<h2 id=\"principe-general-de-securite\">Principe g\u00e9n\u00e9ral de s\u00e9curit\u00e9<\/h2>\n<p><strong><span style=\"color: #e61e5a;\">La norme europ\u00e9enne NF EN 60204-1 d\u00e9finit des r\u00e8gles et recommandations normatives concernant l&rsquo;\u00e9quipement \u00e9lectrique des machines <\/span><\/strong> afin d&rsquo;assurer :<\/p>\n<ul>\n<li>La s\u00e9curit\u00e9 du personnel et des biens<\/li>\n<li>La coh\u00e9rence de r\u00e9ponse des commandes&nbsp;<\/li>\n<li>La facilit\u00e9 de la maintenance&nbsp;<\/li>\n<\/ul>\n<p><strong>Les commandes doivent \u00eatre facilement accessibles<\/strong> pendant le fonctionnement et la maintenance de la machine.<br \/>\nDe plus, les dispositifs de commande, les indicateurs visuels et les affichages utilis\u00e9s dans les interfaces homme-machine, (en particulier en ce qui concerne les fonctions de s\u00e9curit\u00e9) doivent clairement et <strong>en permanence \u00e9tiqueter leurs fonctions sur ou \u00e0 proximit\u00e9 d\u2019eux-m\u00eames<\/strong>.<\/p>\n<p>Il existe 6 couleurs standardis\u00e9es , chacune d\u00e9finissant des informations pr\u00e9cises sur la fa\u00e7on dont les op\u00e9rateurs doivent r\u00e9agir en fonction de l\u2019outil sur lequel ils travaillent.<\/p>\n<p>Ces indications lumineuses permettent d\u2019<strong>attirer l&rsquo;attention de l&rsquo;op\u00e9rateur ou l&rsquo;inciter \u00e0 effectuer une t\u00e2che sp\u00e9cifique<\/strong>.<\/p>\n<h2 id=\"les-voyants-lumineux-de-signalisation\">Les voyants lumineux de signalisation<\/h2>\n<h3 id=\"lutilite-du-voyant-lumineux\">L&rsquo;utilit\u00e9 du voyant lumineux<\/h3>\n<p>La fonction du voyant lumineux \u00e0 LED est de <strong>signaler visuellement \u00e0 un op\u00e9rateur l&rsquo;\u00e9tat de fonctionnement d&rsquo;un appareil ou d&rsquo;un circuit \u00e9lectrique<\/strong>. Le voyant doit donc \u00eatre visible imm\u00e9diatement par un op\u00e9rateur qui, selon la couleur du voyant allum\u00e9, aura une action sp\u00e9cifique \u00e0 effectuer. Les indications les plus courantes sont la pr\u00e9sence tension, un d\u00e9faut, un fonctionnement correct, une maintenance \u00e0 effectuer.<\/p>\n<p>Le voyant lumineux est <strong>l&rsquo;interface visuelle<\/strong> qui indique aux humains l&rsquo;\u00e9tat de fonctionnement d&rsquo;un circuit ou d&rsquo;un appareil \u00e9lectrique.<\/p>\n<p>Selon les applications et l&rsquo;environnement les instruments de signalisation se pr\u00e9sentent sous diff\u00e9rentes formes comme des colonnes lumineuses, des voyants fixes encastrables, gyrophares, &#8230;<\/p>\n<p>Pour renforcer la puissance de l&rsquo;avertissement, <strong>l&rsquo;indication visuelle peut \u00eatre coupl\u00e9e \u00e0 un signal sonore<\/strong>. Ainsi certains instruments de associent le signal visuel, avec des t\u00e9moins lumineux \u00e0 LED, au signal sonore, avec un buzzer d&rsquo;alarme ou une sir\u00e8ne int\u00e9gr\u00e9.<\/p>\n<h3 id=\"linstallation-du-voyant-lumineux-de-signalisation\">L&rsquo;installation du voyant lumineux de signalisation<\/h3>\n<p>Compte tenu de sa fonction de signalisation, <strong>les voyants lumineux<\/strong> doivent \u00eatre install\u00e9s de fa\u00e7on tr\u00e8s visible par les humains.<\/p>\n<p>Ils sont positionn\u00e9s diff\u00e9remment selon le type d&rsquo;indicateur lumineux :<\/p>\n<ul>\n<li><strong>Les colonnes lumineuses<\/strong> seront install\u00e9es en saillie sur le haut des machines ou appareils.<\/li>\n<li><strong>Les voyants encastrables<\/strong> seront mont\u00e9s sur des pupitres de commande ou sur <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">la porte d&rsquo;armoires \u00e9lectriques ou coffrets de distribution<\/a>.<\/li>\n<\/ul>\n<h3 id=\"la-signification-des-couleurs\">La signification des couleurs<\/h3>\n<p><strong><span style=\"color: #e61e5a;\">Rouge, jaune, vert, bleu et blanc : chacune de ces couleurs a une signification pr\u00e9cise :<\/span><\/strong><\/p>\n<h4 id=\"le-voyant-lumineux-rouge\">Le voyant lumineux rouge<\/h4>\n<p>Le voyant lumineux rouge Indique une urgence qui<strong> n\u00e9cessite une action imm\u00e9diate pour faire face \u00e0 une situation dangereuse<\/strong>. Il peut s&rsquo;agir d&rsquo;une surtension, d&rsquo;une panne de courant ou d&rsquo;une surchauffe de l&rsquo;outil n\u00e9cessaire \u00e0 la production. Auquel cas, une <strong>mesure<\/strong> <strong>standardis\u00e9e typique est l&rsquo;activation d&rsquo;un arr\u00eat d&rsquo;urgence<\/strong>.<\/p>\n<h4 id=\"le-voyant-lumineux-jaune\">Le voyant lumineux jaune<\/h4>\n<p>Le voyant lumineux de couleur jaune signale une <strong>situation anormale<\/strong> pouvant entra\u00eener une situation dangereuse. Selon le domaine d&rsquo;utilisation, une des causes possibles peut \u00eatre une \u00e9l\u00e9vation anormale de la temp\u00e9rature d&rsquo;une machine et le d\u00e9passement d&rsquo;un seuil critique pr\u00e9d\u00e9termin\u00e9. Dans ce cas, <strong>l&rsquo;op\u00e9rateur cherchera \u00e0 intervenir et \u00e0 surveiller<\/strong> l&rsquo;\u00e9tat de la machine concern\u00e9e.<\/p>\n<h4 id=\"le-voyant-lumineux-vert\">Le voyant lumineux vert<\/h4>\n<p>Le voyant lumineux vert indique une<strong> situation normale<\/strong> et donc le bon fonctionnement d\u2019une machine.<\/p>\n<h4 id=\"le-voyant-lumineux-bleu\">Le voyant lumineux bleu<\/h4>\n<p>Le voyant lumineux \u00e0 LED bleu indique que<strong> l&rsquo;op\u00e9rateur doit agir obligatoirement sur la machine pour son bon fonctionnement<\/strong>. Cette situation n&rsquo;est pas dangereuse, par exemple, la machine demandera \u00e0 l&rsquo;op\u00e9rateur de v\u00e9rifier l&rsquo;op\u00e9ration en cours en s\u00e9lectionnant la valeur que la machine veut atteindre.<\/p>\n<h4 id=\"le-voyant-lumineux-blanc\">Le voyant lumineux blanc<\/h4>\n<p>Le voyant lumineux blanc indique <strong>une situation que l\u2019on qualifie de neutre<\/strong>. L\u2019op\u00e9rateur va lui m\u00eame d\u00e9finir ce pourquoi le blanc lui sera utile. Le blanc est souvent utilis\u00e9 comme t\u00e9moin d&rsquo;alimentation. Il indique la pr\u00e9sence tension du circuit \u00e9lectrique.<\/p>\n<h2 id=\"les-commutateurs-et-boutons-poussoirs\">Les commutateurs et boutons-poussoirs<\/h2>\n<h3 id=\"lutilite-du-bouton-poussoir-ou-commutateur-rotatif\">L&rsquo;utilit\u00e9 du bouton-poussoir ou commutateur rotatif<\/h3>\n<p>Ils permettent de <strong>commander des circuits \u00e9lectriques<\/strong>. Leur type et leur couleur d\u00e9finira le type de commande :<\/p>\n<ul>\n<li><strong>Le bouton-poussoir<\/strong> commande une seule action. Il peut \u00eatre \u00e0 fonction maintenue ou fugitive. G\u00e9n\u00e9ralement sa fonction est de commander l&rsquo;alimentation d&rsquo;un circuit \u00e9lectrique sp\u00e9cifique.<\/li>\n<li><strong>L&rsquo;interrupteur rotatif<\/strong> \u00e0 2 ou 3 positions permet de <strong>commuter l&rsquo;alimentation d&rsquo;un circuit \u00e0 un autre<\/strong>. Il est souvent utilis\u00e9 pour s\u00e9lectionner une vitesse ou un mode de fonctionnement. Par exemple un commutateur rotatif 3 positions fixes pourra \u00eatre utilis\u00e9 pour la fonction <strong>Marche avant\/Arr\u00eat\/Marche arri\u00e8re<\/strong>. Les positions peuvent \u00eatre maintenues (fixes) ou fugitives (momentan\u00e9es).<\/li>\n<\/ul>\n<p>Pour renforcer leur visibilit\u00e9 ces instruments de commande peuvent \u00eatre lumineux.<\/p>\n<h3 id=\"linstallation-des-commutateurs-et-boutons-poussoirs\">L&rsquo;installation des commutateurs et boutons-poussoirs<\/h3>\n<p>Compte tenu de leurs fonctions de commande, <strong>les boutons-poussoirs et commutateurs rotatifs<\/strong> doivent \u00eatre install\u00e9s de fa\u00e7on tr\u00e8s visible et accessible par les humains.<\/p>\n<p>Ils sont positionn\u00e9s sur des pupitres de commande ou sur <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">la porte d&rsquo;armoires \u00e9lectriques ou coffrets de distribution<\/a>.<\/p>\n<h3 id=\"la-signification-des-couleurs\">La signification des couleurs<\/h3>\n<p><strong><span style=\"color: #e61e5a;\">Rouge, jaune, vert, bleu et blanc : chacune de ces couleurs a une signification pr\u00e9cise :<\/span><\/strong><\/p>\n<h4 id=\"le-bouton-poussoir-rouge\">Le bouton-poussoir rouge<\/h4>\n<p>Le rouge indique les actions \u00e0 entreprendre dans des <strong>situations urgentes et dangereuses<\/strong>. Une pression active la fonction d&rsquo;urgence.<\/p>\n<h4 id=\"le-bouton-poussoir-jaune\">Le bouton-poussoir jaune<\/h4>\n<p>L&rsquo;appui sur le bouton-poussoir jaune <strong>dans une situation anormale<\/strong> active une action, qui peut \u00eatre un red\u00e9marrage complet de la cha\u00eene de commandement.<\/p>\n<h4 id=\"le-bouton-poussoir-vert\">Le bouton-poussoir vert<\/h4>\n<p>Un bouton-poussoir de couleur vert permettra d\u2019effectuer une action qui pr\u00e9pare <strong>une situation normale<\/strong> dans la proc\u00e9dure par exemple la mise sous tension d&rsquo;une machine.<\/p>\n<h4 id=\"le-bouton-poussoir-bleu\">Le bouton-poussoir bleu<\/h4>\n<p>Il indique une <strong>action obligatoire<\/strong> \u00e0 r\u00e9aliser pour assurer le bon fonctionnement d&rsquo;une machine.<\/p>\n<h4 id=\"le-bouton-poussoir-blanc\">Le bouton-poussoir blanc<\/h4>\n<p>Le bouton-poussoir blanc permettra de <strong>mettre en marche ou sous tension un appareil.<\/strong> Il ne sert pas en cas d\u2019arr\u00eat d\u2019urgence nonobstant.<\/p>\n<h4 id=\"les-boutons-poussoirs-noirs-ou-gris\">Les boutons-poussoirs noirs ou gris<\/h4>\n<p>Les boutons Gris et Noirs sont sp\u00e9cifiques et auront souvent les m\u00eames fonctions que le bouton Blanc.&nbsp;<\/p>\n<h3 id=\"symboles-visibles-sur-les-boutons\">Symboles visibles sur les boutons<\/h3>\n<p>Hormis la couleur, les boutons-poussoirs peuvent \u00e9galement disposer de <strong>symboles visibles qui d\u00e9terminent la fa\u00e7on dont on doit les utiliser<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-4494\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/tableau-boutons-explications-300x211.jpg\" alt=\"tableau-boutons-explications\" width=\"300\" height=\"211\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/tableau-boutons-explications-300x211.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/tableau-boutons-explications-600x423.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/tableau-boutons-explications-768x541.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/07\/tableau-boutons-explications.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>De <a href=\"https:\/\/lettel.com\/fr\/ressources\/unites_mesure_electricite\/\">nombreux autres symboles<\/a> existent. ils r\u00e9pondent \u00e0 une classification pr\u00e9cise.<\/p>\n<p>Pour plus de clart\u00e9 leur fonction doit \u00e9galement \u00eatre indiqu\u00e9e par une plaque signal\u00e9tique adjacente.<\/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\/instruments-de-commande-et-de-signalisation\/&#038;title=Les commutateurs et voyants de signalisation\" 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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='#principe-general-de-securite'>Principe g\u00e9n\u00e9ral de s\u00e9curit\u00e9<\/a><li><a class='table-content_link' href='#les-voyants-lumineux-de-signalisation'>Les voyants lumineux de signalisation<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#lutilite-du-voyant-lumineux'>L&rsquo;utilit\u00e9 du voyant lumineux<\/a><li><a class='table-content_link' href='#linstallation-du-voyant-lumineux-de-signalisation'>L&rsquo;installation du voyant lumineux de signalisation<\/a><li><a class='table-content_link' href='#la-signification-des-couleurs'>La signification des couleurs<\/a><\/ul><li class='table-content_item-lvl-2'><a class='table-content_link' href='#les-commutateurs-et-boutons-poussoirs'>Les commutateurs et boutons-poussoirs<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#lutilite-du-bouton-poussoir-ou-commutateur-rotatif'>L&rsquo;utilit\u00e9 du bouton-poussoir ou commutateur rotatif<\/a><li><a class='table-content_link' href='#linstallation-des-commutateurs-et-boutons-poussoirs'>L&rsquo;installation des commutateurs et boutons-poussoirs<\/a><li><a class='table-content_link' href='#la-signification-des-couleurs'>La signification des couleurs<\/a><li><a class='table-content_link' href='#symboles-visibles-sur-les-boutons'>Symboles visibles sur les boutons<\/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-cg\">\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-voyants-lumineux-a-led\">Les voyants lumineux \u00e0 LED<\/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='4981'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/voyant-presence-tension-sve3-rgy\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"voyant triled pr\u00e9sence tension sve3-rgy\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-Brochure.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-Brochure-300x229.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-Brochure-450x344.jpg 450w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-Brochure.jpg 591w\" 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\">SVE3-RGY<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"voyant-lumineux-tri-led-rouge-vert-jaune\">Voyant lumineux tri-led rouge\/vert\/jaune<\/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='6170'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/voyant-lumineux-led-sve1-22\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"voyant lumineux \u00e0 led SVE1-22\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve1-22.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\">SVE1-22 MONO LED<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"voyant-a-led-de-12v-a-400v-pour-decoupe-o22\">Voyant \u00e0 LED de 12V \u00e0 400V pour d\u00e9coupe \u00d822<\/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='4978'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/voyant-triled-sve3-www\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"voyant lumineux tri-led sve3-www\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-wwwOFF-Brochure.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-wwwOFF-Brochure-300x228.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-wwwOFF-Brochure-600x457.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-wwwOFF-Brochure-768x584.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/06\/sve3-wwwOFF-Brochure.jpg 904w\" 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\">SVE3-WWW<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"voyant-lumineux-tri-led-de-presence-tension\">Voyant lumineux tri-led de pr\u00e9sence tension<\/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='6409'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/avertisseur-sonore-lumineux-svei3-b\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Avertisseurs \u00e0 led et buzzer svei3\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/08\/indicateurs-led-buzzer-svei3.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\">SVEI3-B<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"avertisseur-a-3-leds-vert-jaune-rouge-et-buzzer-integre\">Avertisseur \u00e0 3 leds vert\/jaune\/rouge et buzzer int\u00e9gr\u00e9<\/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='6144'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/voyant-lumineux-led-sve1-16\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"voyants lumineux \u00e0 led sve1-16\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/sve1-16.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\">SVE1-16 MONO LED<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"voyant-a-led-de-12v-a-400v-pour-decoupe-o16\">Voyant \u00e0 LED de 12V \u00e0 400V pour d\u00e9coupe \u00d816<\/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-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":"La signification des couleurs et symboles utilis\u00e9s dans l&rsquo;industrie","protected":false},"author":3,"featured_media":4497,"template":"","class_list":["post-4492","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>Les commutateurs et voyants de signalisation<\/title>\n<meta name=\"description\" content=\"La norme europ\u00e9enne NF EN 60204-1 d\u00e9finit des r\u00e8gles et recommandations normatives concernant l&#039;\u00e9quipement \u00e9lectrique des machines ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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