{"id":1435,"date":"2026-09-30T01:00:00","date_gmt":"2026-09-30T01:00:00","guid":{"rendered":"https:\/\/mordio.com\/?p=1435"},"modified":"2026-07-17T09:22:17","modified_gmt":"2026-07-17T09:22:17","slug":"understanding-different-types-wall-switches-spst-spdt-dpst-dpdt","status":"publish","type":"post","link":"https:\/\/mordio.com\/fr\/understanding-different-types-wall-switches-spst-spdt-dpst-dpdt\/","title":{"rendered":"Comprendre les diff\u00e9rents types d'interrupteurs muraux : SPST, SPDT, DPST, DPDT"},"content":{"rendered":"<p>Choisir le bon interrupteur mural pour une installation r\u00e9sidentielle ou commerciale est plus nuanc\u00e9 que de simplement s\u00e9lectionner un style ou une couleur. La configuration interne d\u00e9termine combien de circuits l'interrupteur peut commander et comment il interagit avec d'autres interrupteurs. Cet article explique les quatre types fondamentaux d'interrupteurs muraux\u2014SPST, SPDT, DPST et DPDT\u2014avec leurs sch\u00e9mas de circuit, leurs applications courantes et des conseils de s\u00e9lection. Comprendre ces types d'interrupteurs muraux vous aidera \u00e0 sp\u00e9cifier le composant adapt\u00e9 \u00e0 votre projet.<\/p>\n<h2>Que signifient les acronymes ?<\/h2>\n<p>La terminologie des interrupteurs utilise une abr\u00e9viation standard : SP = Single Pole (unipolaire), DP = Double Pole (bipolaire), ST = Single Throw (simple direction), DT = Double Throw (double direction). Le p\u00f4le fait r\u00e9f\u00e9rence au nombre de circuits que l'interrupteur peut commander. La direction indique combien de positions l'interrupteur peut connecter. Par exemple, un interrupteur unipolaire simple direction (SPST) commande un circuit avec deux positions (marche\/arr\u00eat). Un interrupteur bipolaire double direction (DPDT) commande deux circuits ind\u00e9pendants et peut connecter chacun \u00e0 l'une des deux sorties.<\/p>\n<h2>SPST : L'interrupteur marche\/arr\u00eat simple<\/h2>\n<p>L'interrupteur SPST (Single Pole Single Throw) est le type d'interrupteur mural le plus courant. Il poss\u00e8de deux bornes : une pour le fil de phase entrant et une pour le fil sortant vers la charge. Lorsque le levier est en haut (marche), le circuit est ferm\u00e9 et le courant circule. Lorsqu'il est en bas (arr\u00eat), le circuit est ouvert. Les interrupteurs SPST sont utilis\u00e9s pour commander une seule lampe ou un appareil depuis un seul endroit. C'est l'interrupteur standard que l'on trouve dans la plupart des maisons et des installations commerciales de base.<\/p>\n<p>Sch\u00e9ma de circuit : Une simple ligne repr\u00e9sentant le fil de phase se connecte \u00e0 une borne, et le fil de charge \u00e0 l'autre. Une rupture dans la ligne indique la position ouverte de l'interrupteur. Les interrupteurs SPST sont con\u00e7us pour une tension et un courant sp\u00e9cifiques ; respectez toujours les codes locaux et faites appel \u00e0 un \u00e9lectricien qualifi\u00e9 pour l'installation.<\/p>\n<h2>SPDT : Commutation \u00e0 trois voies<\/h2>\n<p>Un interrupteur SPDT (Single Pole Double Throw) poss\u00e8de trois bornes : une commune et deux voyageurs. La borne commune se connecte \u00e0 l'une ou l'autre des bornes voyageurs selon la position du levier. Les interrupteurs SPDT sont utilis\u00e9s par paires pour cr\u00e9er une commutation \u00e0 trois voies, permettant de commander une lumi\u00e8re depuis deux endroits (par exemple, aux deux extr\u00e9mit\u00e9s d'un couloir ou d'un escalier). Ils sont \u00e9galement utilis\u00e9s comme s\u00e9lecteurs dans les applications basse tension.<\/p>\n<p>Sch\u00e9ma de circuit : La borne commune est connect\u00e9e au fil de phase. Les deux bornes voyageurs sont connect\u00e9es aux voyageurs correspondants du second interrupteur SPDT. La borne commune du second interrupteur va \u00e0 la charge. Lorsque les deux interrupteurs sont dans la m\u00eame position (tous deux en haut ou tous deux en bas), le circuit est ferm\u00e9. Lorsqu'ils sont en positions oppos\u00e9es, le circuit est ouvert. Cette configuration n\u00e9cessite un c\u00e2blage minutieux ; consultez toujours un \u00e9lectricien qualifi\u00e9.<\/p>\n<h2>DPST : Deux circuits, un interrupteur<\/h2>\n<p>Un interrupteur DPST (Double Pole Single Throw) commande deux circuits ind\u00e9pendants simultan\u00e9ment avec un seul levier. Il poss\u00e8de quatre bornes : deux entr\u00e9es et deux sorties. Lorsque l'interrupteur est en position marche, les deux circuits sont ferm\u00e9s ; en position arr\u00eat, ils sont ouverts. Les interrupteurs DPST sont souvent utilis\u00e9s pour couper \u00e0 la fois le fil de phase et le fil neutre d'un appareil 230V, assurant une isolation compl\u00e8te. Ils sont \u00e9galement utilis\u00e9s dans les \u00e9quipements industriels et certaines installations de chauffe-eau.<\/p>\n<p>Sch\u00e9ma de circuit : Deux lignes s\u00e9par\u00e9es repr\u00e9sentent les deux circuits, chacun avec sa propre paire de bornes. Le m\u00e9canisme de l'interrupteur connecte les deux lignes d'entr\u00e9e \u00e0 leurs sorties respectives lorsqu'il est en position marche. Les interrupteurs DPST sont con\u00e7us pour des courants et tensions plus \u00e9lev\u00e9s ; assurez-vous que l'interrupteur r\u00e9pond aux exigences de la charge. Respectez toujours les codes \u00e9lectriques locaux.<\/p>\n<h2>DPDT : Inversion ou commutation de deux charges<\/h2>\n<p>L'interrupteur DPDT (Double Pole Double Throw) poss\u00e8de six bornes : deux communes, deux normalement ouvertes (NO) et deux normalement ferm\u00e9es (NF) ou \u00e9quivalents voyageurs. Il peut commander deux circuits et connecter chacun \u00e0 l'une des deux sorties. Les interrupteurs DPDT sont utilis\u00e9s pour inverser le sens d'un moteur, commuter entre deux sources d'alimentation ou commander deux charges distinctes avec un seul interrupteur. Ils sont courants dans les armoires de commande industrielles et certains syst\u00e8mes CVC.<\/p>\n<p>Sch\u00e9ma de circuit : Deux circuits ind\u00e9pendants ont chacun une borne commune qui peut se connecter \u00e0 l'une des deux bornes de sortie. Lorsque le levier est dans une position, les deux communes se connectent \u00e0 leurs bornes NO respectives ; dans l'autre position, elles se connectent aux bornes NF. Cette configuration permet une commutation complexe sans relais suppl\u00e9mentaires. Pour des raisons de s\u00e9curit\u00e9, faites toujours appel \u00e0 un \u00e9lectricien qualifi\u00e9 pour l'installation.<\/p>\n<h2>Comment choisir le bon interrupteur pour votre projet<\/h2>\n<p>Pour choisir parmi ces types d'interrupteurs muraux, tenez compte des facteurs suivants :<\/p>\n<ul>\n<li>Nombre d'emplacements : Pour une commande depuis un seul endroit, utilisez SPST. Pour une commande depuis deux endroits, utilisez deux interrupteurs SPDT.<\/li>\n<li>Type de charge : Pour les charges r\u00e9sistives comme les lampes \u00e0 incandescence, les interrupteurs standard conviennent. Pour les charges inductives comme les moteurs, assurez-vous que l'interrupteur est con\u00e7u pour le courant d'appel.<\/li>\n<li>Voltage and current: Verify the switch&#8217;s rating matches the circuit. For 230V circuits, use switches rated for at least 250V.<\/li>\n<li>Exigences d'isolation : Si vous devez couper \u00e0 la fois la phase et le neutre, utilisez un interrupteur DPST.<\/li>\n<li>Inversion ou multifonction : Utilisez DPDT pour l'inversion de moteur ou la commutation entre deux sources.<\/li>\n<\/ul>\n<p>V\u00e9rifiez toujours les codes et normes \u00e9lectriques locaux (par exemple, BS 1363, IEC, CE, UL, NEMA) lors de la s\u00e9lection des interrupteurs. MORDIO propose une gamme d'interrupteurs muraux conformes \u00e0 ces normes ; explorez notre collection d'interrupteurs et prises de courant aux normes europ\u00e9ennes pour des options conformes.<\/p>\n<h2>Erreurs courantes \u00e0 \u00e9viter<\/h2>\n<p>Une erreur fr\u00e9quente consiste \u00e0 utiliser un interrupteur SPST alors qu'une configuration \u00e0 trois voies (SPDT) est n\u00e9cessaire, ce qui rend le circuit non fonctionnel. Une autre erreur est d'utiliser un interrupteur avec un calibre de courant insuffisant, ce qui peut provoquer une surchauffe. De plus, inverser les fils voyageurs sur les interrupteurs SPDT entra\u00eene un fonctionnement incorrect. Pour \u00e9viter ces probl\u00e8mes, suivez toujours le sch\u00e9ma de c\u00e2blage et consultez un \u00e9lectricien qualifi\u00e9.<\/p>\n<h2>Pourquoi choisir les interrupteurs MORDIO ?<\/h2>\n<p>MORDIO fabrique des interrupteurs muraux et des prises de courant de haute qualit\u00e9 con\u00e7us pour la durabilit\u00e9 et la s\u00e9curit\u00e9. Nos produits sont soumis \u00e0 des tests rigoureux pour se conformer aux normes internationales telles que CE et UL. Que vous ayez besoin de SPST pour une commande de base ou de DPDT pour des applications industrielles, notre gamme offre des performances fiables. Pour plus d'informations sur nos certifications, visitez notre page certificats. En savoir plus sur notre entreprise et notre processus de fabrication.<\/p>\n<p>Contactez-nous d\u00e8s aujourd'hui pour discuter des exigences de votre projet et trouver la solution d'interrupteur parfaite. Notre \u00e9quipe peut fournir un support technique et des \u00e9chantillons pour \u00e9valuation.<\/p>\n<p>Explore <a href=\"https:\/\/mordio.com\/fr\/\">MORDIO wall switch and socket solutions<\/a>, ou <a href=\"https:\/\/mordio.com\/fr\/contact\/\">contact the team<\/a> to discuss specifications, samples, documentation, MOQ, and lead times for your market.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing the correct wall switch for a residential or commercial installation is more nuanced than simply picking a style or color. The internal configuration determines how many circuits the switch can control and how it interacts with other switches. This article explains the four fundamental types of wall switches\u2014SPST, SPDT, DPST, and DPDT\u2014with their circuit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1116,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[1164,1163,1162,1161,1160],"class_list":["post-1435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-dpdt","tag-dpst","tag-spdt","tag-spst","tag-switch-types"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wall Switch Types: SPST, SPDT, DPST, DPDT Explained<\/title>\n<meta name=\"description\" content=\"Learn the four basic types of wall switches\u2014SPST, SPDT, DPST, DPDT\u2014with diagrams, applications, and tips for selecting the right switch for your project.\" \/>\n<meta name=\"robots\" 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