{"id":20124,"date":"2026-03-28T21:28:58","date_gmt":"2026-03-28T13:28:58","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=20124"},"modified":"2026-04-10T07:58:04","modified_gmt":"2026-04-09T23:58:04","slug":"dc-ssr-vs-ac-ssr-what-are-the-key-differences","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/dc-ssr-vs-ac-ssr-what-are-the-key-differences\/","title":{"rendered":"DC SSR Vs AC SSR : Quelles sont les principales diff\u00e9rences ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"20124\" class=\"elementor elementor-20124\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c4f3e89 e-flex e-con-boxed e-con e-parent\" data-id=\"c4f3e89\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc2c17b elementor-widget elementor-widget-text-editor\" data-id=\"bc2c17b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/lorentzzi.com\/fr\/solid-state-relays\/\"><span style=\"font-weight: 400;\"><span style=\"color: #ff0000;\">Relais \u00e0 semi-conducteurs (SSR)<\/span><\/span><\/a><span style=\"font-weight: 400;\"> sont devenus tr\u00e8s populaires dans les syst\u00e8mes de contr\u00f4le industriels gr\u00e2ce \u00e0 leurs principaux avantages : fonctionnement silencieux, r\u00e9ponse rapide, longue dur\u00e9e de vie et absence d'arc \u00e9lectrique lors de la commutation de la charge.<\/span><\/p><p><span style=\"font-weight: 400;\">Les relais statiques sont principalement divis\u00e9s en deux cat\u00e9gories : Les relais statiques CC (SSR CC) et les relais statiques CA (SSR CA), en fonction de la diff\u00e9rence de tension contr\u00f4l\u00e9e. Quelles sont donc les principales diff\u00e9rences entre ces deux types de relais statiques ? Cet article fournit une explication d\u00e9taill\u00e9e.<\/span><\/p><p><span style=\"font-weight: 400;\">Maintenant, apprenons ensemble !<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cafa54d elementor-widget elementor-widget-heading\" data-id=\"cafa54d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que le DC SSR ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5448536 elementor-widget elementor-widget-image\" data-id=\"5448536\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction.jpg\" class=\"attachment-large size-large wp-image-20126\" alt=\"Relais \u00e0 semi-conducteurs \u00e0 courant continu pour la tension et la direction du flux de courant\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/DC-solid-state-relay-voltage-and-current-flow-direction-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c039704 elementor-widget elementor-widget-text-editor\" data-id=\"c039704\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En termes simples, un relais statique CC (SSR CC) est un relais dont la charge est une alimentation en courant continu. Il peut \u00eatre utilis\u00e9 pour activer et d\u00e9sactiver des charges \u00e0 courant continu, telles que des chauffages et des moteurs \u00e0 courant continu.<\/span><\/p><p><span style=\"font-weight: 400;\">Nous avons \u00e9crit un article de blog sur les relais DC \u00e0 semi-conducteurs, vous pouvez le consulter : <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/dc-solid-state-relay-what-is-it-and-how-it-works\/\"><span style=\"font-weight: 400;\">Relais \u00e0 semi-conducteurs \u00e0 courant continu : Qu'est-ce que c'est et comment \u00e7a marche ?<\/span><\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9dc555 eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"a9dc555\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eicon-woocommerce.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n        <div class=\"eael-product-grid eael-product-simple grid\" id=\"eael-product-grid\" data-widget-id=\"a9dc555\" data-page-id=\"20124\" data-nonce=\"e824681645\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-a9dc555\" data-ssi-desktop=\"no\" data-ssi-tablet=\"no\" data-ssi-mobile=\"no\" data-layout-mode=\"grid\"> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-100dd-dc-dc-solid-state-relay-module\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR-100DD Relais statique 100 amp\u00e8res DC\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-100DD-100-amps-DC-solid-state-relay.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-100dd-dc-dc-solid-state-relay-module\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 100DD DC Module relais \u00e0 semi-conducteurs DC<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-100dd-dc-dc-solid-state-relay-module\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9882\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9882\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 100DD DC DC Solid State Relay Module\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9882\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-60dd-60a-dc-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR-60DD SSR 60A DC Solid State Relay (relais \u00e0 semi-conducteurs)\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-60DD-SSR-60A-DC-Solid-State-Relay.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-60dd-60a-dc-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 60DD Relais statique 60A DC<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-60dd-60a-dc-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9866\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9866\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 60DD 60A DC Solid State Relay\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9866\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10dd-dc-dc-ssr\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR 10DD, 10 Amp\u00e8res, DC3-32V Contr\u00f4le DC24-220V SSR\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-10DD-10-Amps-DC3-32V-Control-DC24-220V-SSR.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10dd-dc-dc-ssr\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 10DD, 10 Amp\u00e8res, DC3-32V Contr\u00f4le DC24-220V SSR<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10dd-dc-dc-ssr\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9827\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9827\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 10DD, 10 Amps, DC3-32V Control DC24-220V SSR\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9827\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40dd-dc-control-dc-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR-40DD 40A DC Control DC Solid-State-Relay For DC Heater\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/SSR-40DD-40A-DC-Control-DC-Solid-State-Relay-For-DC-Heater.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40dd-dc-control-dc-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 40DD, 40A DC Control DC Solid State Relay (relais \u00e0 semi-conducteurs)<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40dd-dc-control-dc-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9815\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9815\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 40DD, 40A DC Control DC Solid State Relay\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9815\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li><\/ul>            <\/div>\n        <\/div>\n\n        <script type=\"text\/javascript\">\n            jQuery(document).ready(function($) {\n                var $scope = jQuery(\".elementor-element-a9dc555\");\n                var $products = $('.products', $scope);\n                var $layout_mode = $products.data('layout-mode');\n                \n                if ( $layout_mode === 'masonry' ) {\n                    \/\/ init isotope\n                    var $isotope_products = $products.isotope({\n                        itemSelector: \"li.product\",\n                        layoutMode: $layout_mode,\n                        percentPosition: true\n                    });\n\n                    $isotope_products.imagesLoaded().progress( function() {\n                        $isotope_products.isotope('layout');\n                    })\n                    \n                }\n            });\n        <\/script>\n        \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed7e67e elementor-widget elementor-widget-heading\" data-id=\"ed7e67e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que le relais SSR en courant alternatif ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd5f268 elementor-widget elementor-widget-image\" data-id=\"bd5f268\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction.jpg\" class=\"attachment-large size-large wp-image-20127\" alt=\"Relais \u00e0 semi-conducteurs \u00e0 courant alternatif, tension et direction du flux de courant\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/AC-solid-state-relay-voltage-and-current-flow-direction-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf9aff4 elementor-widget elementor-widget-text-editor\" data-id=\"bf9aff4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Un relais statique CA, souvent appel\u00e9 simplement relais statique CA, contr\u00f4le l'alimentation CA par l'interm\u00e9diaire d'une paire de relais statiques CA. <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/triac-vs-thyristor-key-differences-and-selection-tips\/\"><span style=\"font-weight: 400;\">thyristors ou \u00e9l\u00e9ments de commutation triac dos \u00e0 dos (TRIAC)<\/span><\/a><\/span><span style=\"font-weight: 400;\">. Contrairement \u00e0 un relais statique \u00e0 courant continu (SSR \u00e0 courant continu), il est principalement utilis\u00e9 pour connecter et d\u00e9connecter des charges \u00e0 courant alternatif, telles que des chauffages et des moteurs \u00e0 courant alternatif.<\/span><\/p><p><span style=\"font-weight: 400;\">Ces deux types de relais \u00e0 semi-conducteurs fonctionnent selon un principe similaire \u00e0 celui des contacteurs \u00e0 courant alternatif (pour plus de d\u00e9tails sur les SSR et les contacteurs, consultez notre blog) : <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/ssr-vs-ac-contactor-which-is-better-in-a-temperature-control-system\/\"><span style=\"font-weight: 400;\">SSR ou contacteur CA : Quelle est la meilleure solution pour un syst\u00e8me de contr\u00f4le de la temp\u00e9rature ?<\/span><\/a><\/span><span style=\"font-weight: 400;\">). En d'autres termes, lorsque la borne de commande est sous tension (g\u00e9n\u00e9ralement le signal de commande est un faible courant et une faible tension), la charge (la partie contr\u00f4l\u00e9e avec une tension et un courant \u00e9lev\u00e9s) est \u00e9galement sous tension ; inversement, lorsque le signal de la borne de commande est d\u00e9connect\u00e9, la charge est d\u00e9sexcit\u00e9e.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19843ca eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"19843ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eicon-woocommerce.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n        <div class=\"eael-product-grid eael-product-simple grid\" id=\"eael-product-grid\" data-widget-id=\"19843ca\" data-page-id=\"20124\" data-nonce=\"e824681645\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-19843ca\" data-ssi-desktop=\"no\" data-ssi-tablet=\"no\" data-ssi-mobile=\"no\" data-layout-mode=\"grid\"> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-80da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR 80DA 80A DC To AC Solid State Relay (relais \u00e0 semi-conducteurs DC vers AC)\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-80DA-80A-DC-To-AC-Solid-State-Relay.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-80da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 80DA 80A DC To AC Solid State Relay (relais \u00e0 semi-conducteurs DC vers AC)<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-80da-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9733\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9733\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 80DA 80A DC To AC Solid State Relay\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9733\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR 10DA Relais statique monophas\u00e9 10A DC vers AC\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-10DA-10A-DC-To-AC-Single-Phase-Solid-State-Relay.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 10DA Relais \u00e0 semi-conducteurs<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-10da-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9709\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9709\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 10DA Solid State Relay\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9709\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-25da-solid-state-relay-dc-to-ac-25a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR-25DA DC To AC 25A Solid State Relay(SSR)\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-25DA-Solid-State-Relay-DC-To-AC-25A.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-25da-solid-state-relay-dc-to-ac-25a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR-25DA DC To AC 25A Solid State Relay(SSR)<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-25da-solid-state-relay-dc-to-ac-25a\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9701\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9701\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR-25DA DC To AC 25A Solid State Relay(SSR)\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9701\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR-40DA Relais statique monophas\u00e9 40 amp\u00e8res DC vers AC pour \u00e9l\u00e9ments chauffants\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40DA-Single-Phase-40-Amps-DC-To-AC-Solid-State-Relay-For-Heating-Elements.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40da-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR-40DA Relais statique, monophas\u00e9 DC vers AC 40A SSR<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40da-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9571\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9571\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR-40DA Solid State Relay, Single Phase DC To AC 40A SSR\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_9571\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li><\/ul>            <\/div>\n        <\/div>\n\n        <script type=\"text\/javascript\">\n            jQuery(document).ready(function($) {\n                var $scope = jQuery(\".elementor-element-19843ca\");\n                var $products = $('.products', $scope);\n                var $layout_mode = $products.data('layout-mode');\n                \n                if ( $layout_mode === 'masonry' ) {\n                    \/\/ init isotope\n                    var $isotope_products = $products.isotope({\n                        itemSelector: \"li.product\",\n                        layoutMode: $layout_mode,\n                        percentPosition: true\n                    });\n\n                    $isotope_products.imagesLoaded().progress( function() {\n                        $isotope_products.isotope('layout');\n                    })\n                    \n                }\n            });\n        <\/script>\n        \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a8b067 elementor-widget elementor-widget-heading\" data-id=\"7a8b067\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Principales diff\u00e9rences entre les relais SSR \u00e0 courant continu et \u00e0 courant alternatif<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f3c1a71 elementor-widget elementor-widget-image\" data-id=\"f3c1a71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation.jpg\" class=\"attachment-large size-large wp-image-17713\" alt=\"Explication des signaux de commande du relais SSR DC et du relais SSR AC de Lorentzzi\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/07\/Lorentzzi-DC-SSR-and-AC-SSR-control-signal-explanation-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dadf444 elementor-widget elementor-widget-text-editor\" data-id=\"dadf444\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Les principales diff\u00e9rences entre les relais statiques \u00e0 courant continu et les relais statiques \u00e0 courant alternatif se refl\u00e8tent dans les cinq aspects suivants : le type de tension contr\u00f4l\u00e9e, les composants internes de commutation de la charge de contr\u00f4le, les charges applicables, la prise en charge ou non de la connexion inverse de la borne de charge et le type de tension de contr\u00f4le.<\/span><\/p><p><span style=\"font-weight: 400;\">Dans les parties suivantes, nous expliquerons ces 5 diff\u00e9rences en d\u00e9tail.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7efa27a elementor-widget elementor-widget-heading\" data-id=\"7efa27a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Type de tension contr\u00f4l\u00e9e<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70e8973 elementor-widget elementor-widget-text-editor\" data-id=\"70e8973\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>DC SSR<\/b><span style=\"font-weight: 400;\">: Con\u00e7u exclusivement pour le contr\u00f4le de l'alimentation en courant continu.<\/span><\/p><p><b>AC SSR<\/b><span style=\"font-weight: 400;\">: Con\u00e7u exclusivement pour le contr\u00f4le de l'alimentation en courant alternatif.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a22db75 elementor-widget elementor-widget-heading\" data-id=\"a22db75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Composants de commutation de la charge de contr\u00f4le interne<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca38425 elementor-widget elementor-widget-text-editor\" data-id=\"ca38425\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>DC SSR<\/b><span style=\"font-weight: 400;\">: Utilise principalement un MOSFET comme \u00e9l\u00e9ment de commutation. Les MOSFET sont des dispositifs command\u00e9s par la tension qui peuvent s'\u00e9teindre imm\u00e9diatement lorsque le signal de commande est supprim\u00e9, quel que soit le courant de charge.<\/span><\/p><p><b>AC SSR<\/b><span style=\"font-weight: 400;\">: Il utilise principalement une paire de thyristors ou de TRIAC dos \u00e0 dos comme \u00e9l\u00e9ment de commutation. Le thyristor et le TRIAC sont des dispositifs \u00e0 verrouillage ; ils ne s'\u00e9teignent qu'au passage \u00e0 z\u00e9ro du courant alternatif, m\u00eame si le signal de commande est supprim\u00e9.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e9c4e4 elementor-widget elementor-widget-heading\" data-id=\"0e9c4e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Principales charges applicables<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eaf22dd elementor-widget elementor-widget-text-editor\" data-id=\"eaf22dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>DC SSR<\/b><span style=\"font-weight: 400;\">: Les charges typiques comprennent les \u00e9l\u00e9ments chauffants \u00e0 courant continu, les moteurs \u00e0 courant continu, les sol\u00e9no\u00efdes et les dispositifs aliment\u00e9s par batterie.<\/span><\/p><p><b>AC SSR<\/b><span style=\"font-weight: 400;\">: Les charges typiques comprennent les \u00e9l\u00e9ments chauffants \u00e0 courant alternatif, les moteurs \u00e0 courant alternatif, les ventilateurs, les pompes et la plupart des appareils m\u00e9nagers. Ils sont largement utilis\u00e9s pour remplacer les contacteurs \u00e0 courant alternatif traditionnels dans de nombreuses applications.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e95e20 elementor-widget elementor-widget-heading\" data-id=\"7e95e20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Si la connexion invers\u00e9e de la borne de charge est prise en charge<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27e18fe elementor-widget elementor-widget-text-editor\" data-id=\"27e18fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>DC SSR<\/b><span style=\"font-weight: 400;\">: Les bornes positives et n\u00e9gatives de l'alimentation en courant continu doivent \u00eatre strictement connect\u00e9es \u00e0 la section de contr\u00f4le du relais SSR CC. L'inversion de la polarit\u00e9 endommagera le MOSFET, ce qui entra\u00eenera un dysfonctionnement du relais DC.<\/span><\/p><p><b>AC SSR<\/b><span style=\"font-weight: 400;\">: Comme les alimentations en courant alternatif n'ont pas de bornes positives et n\u00e9gatives, l'inversion des connexions sous tension et neutres n'endommagera pas le relais statique. Les seules causes d'endommagement des relais statiques \u00e0 courant alternatif sont la temp\u00e9rature \u00e9lev\u00e9e, la surintensit\u00e9 et la surtension.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0614b40 elementor-widget elementor-widget-heading\" data-id=\"0614b40\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Type de tension de commande<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc80763 elementor-widget elementor-widget-text-editor\" data-id=\"cc80763\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>DC SSR<\/b><span style=\"font-weight: 400;\">: G\u00e9n\u00e9ralement, la tension de commande est limit\u00e9e \u00e0 3-32VDC ; les signaux de commande en courant alternatif sont moins courants sur le march\u00e9.<\/span><\/p><p><b>AC SSR<\/b><span style=\"font-weight: 400;\">: Les signaux de commande courants peuvent \u00eatre non seulement 3-32VDC, mais aussi AC70-280VAC.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0f5c02 elementor-widget elementor-widget-heading\" data-id=\"b0f5c02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Puis-je utiliser un relais SSR CA comme relais SSR CC pour contr\u00f4ler des charges CC ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8feb744 elementor-widget elementor-widget-text-editor\" data-id=\"8feb744\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Non, vous ne pouvez pas utiliser un relais SSR en courant alternatif pour contr\u00f4ler une charge en courant continu.<\/span><\/p><p><span style=\"font-weight: 400;\">Comme indiqu\u00e9 pr\u00e9c\u00e9demment, les relais statiques CA (SSR) utilisent des thyristors ou des TRIACS comme \u00e9l\u00e9ments de commutation internes. Ces dispositifs ne peuvent s'\u00e9teindre que lorsque la forme d'onde de la tension alternative passe par z\u00e9ro apr\u00e8s que le signal de commande a \u00e9t\u00e9 supprim\u00e9.<\/span><\/p><p><span style=\"font-weight: 400;\">Comme les alimentations en courant continu n'ont pas de points de passage \u00e0 z\u00e9ro, une fois qu'un relais statique en courant alternatif est d\u00e9clench\u00e9 dans un circuit en courant continu, il va<\/span><b> restent allum\u00e9es et ne peuvent pas \u00eatre d\u00e9sactiv\u00e9es<\/b><span style=\"font-weight: 400;\"> m\u00eame apr\u00e8s la suppression du signal de commande.<\/span><\/p><p><span style=\"font-weight: 400;\">Par cons\u00e9quent, les relais SSR \u00e0 courant alternatif ne conviennent pas aux applications \u00e0 courant continu.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0260cfa elementor-widget elementor-widget-heading\" data-id=\"0260cfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Puis-je utiliser un relais SSR DC comme un relais SSR AC pour contr\u00f4ler des charges AC ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a402db8 elementor-widget elementor-widget-text-editor\" data-id=\"a402db8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Maintenant que les relais SSR en courant alternatif ne peuvent pas \u00eatre utilis\u00e9s pour contr\u00f4ler des charges en courant continu, les relais SSR en courant continu peuvent-ils \u00eatre utilis\u00e9s pour contr\u00f4ler des charges en courant alternatif ?<\/span><\/p><p><span style=\"font-weight: 400;\">La r\u00e9ponse est toujours non.<\/span><\/p><p><span style=\"font-weight: 400;\">Le relais SSR DC utilise g\u00e9n\u00e9ralement des MOSFET comme composants de commutation internes, qui sont con\u00e7us uniquement pour le courant continu unidirectionnel. La tension alternative change constamment de direction et g\u00e9n\u00e8re une tension inverse, qui endommagera imm\u00e9diatement le MOSFET et provoquera le grillage ou le dysfonctionnement complet du relais SSR DC.<\/span><\/p><p><span style=\"font-weight: 400;\">Par cons\u00e9quent, les relais SSR \u00e0 courant continu ne peuvent pas \u00eatre utilis\u00e9s de mani\u00e8re interchangeable pour contr\u00f4ler les charges \u00e0 courant alternatif.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61265fc elementor-widget elementor-widget-heading\" data-id=\"61265fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd4867d elementor-widget elementor-widget-image\" data-id=\"fd4867d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6Ijg4MzMiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs.jpg\" class=\"attachment-large size-large wp-image-20128\" alt=\"SSR Lorentzzi DC et AC\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Lorentzzi-DC-and-AC-SSRs-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ce3615 elementor-widget elementor-widget-text-editor\" data-id=\"3ce3615\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En bref, la principale diff\u00e9rence est que les relais statiques DC sont principalement utilis\u00e9s pour contr\u00f4ler les alimentations DC, tandis que les relais statiques AC sont principalement utilis\u00e9s pour contr\u00f4ler les alimentations AC.<\/span><\/p><p><span style=\"font-weight: 400;\">Si vous recherchez un fournisseur fiable de relais statiques DC (DC SSR) et de relais statiques AC (AC SSR), <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/\"><span style=\"font-weight: 400;\">Lorentzzi Electric<\/span><\/a><\/span><span style=\"font-weight: 400;\"> peut fournir ces deux produits de haute qualit\u00e9, vous pouvez envoyer votre demande \u00e0 <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"mailto:shonxu@lorentzzi.com\"><span style=\"font-weight: 400;\">shonxu@lorentzzi.com<\/span><\/a><\/span><span style=\"font-weight: 400;\">, Nous vous ferons parvenir un devis dans les 24 heures.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Solid-state relays (SSRs) have grown widely popular in industrial control systems thanks to their key benefits: silent operation, rapid response, long service life, and no arcing during load switching. Solid-state relays are mainly divided into two categories: DC solid-state relays (DC SSRs) and AC solid-state relays (AC SSRs), based on the controlled voltage difference. So, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[109],"tags":[],"class_list":["post-20124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solid-state-relay","desktop-align-center","tablet-align-left","mobile-align-left"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>DC SSR Vs AC SSR: What Are The Key Differences?<\/title>\n<meta name=\"description\" content=\"In this blog post, we will provide you 5 key differences between the DC SSR and AC SSR, click to see this blog post now!\" \/>\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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