{"id":16702,"date":"2025-04-29T13:47:50","date_gmt":"2025-04-29T05:47:50","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=16702"},"modified":"2025-07-07T10:19:26","modified_gmt":"2025-07-07T02:19:26","slug":"nc-solid-state-relay-does-it-exist-and-how-to-realize","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/nc-solid-state-relay-does-it-exist-and-how-to-realize\/","title":{"rendered":"Relais \u00e0 semi-conducteurs NC : Existe-t-il et comment le r\u00e9aliser ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"16702\" class=\"elementor elementor-16702\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-87f26d4 e-flex e-con-boxed e-con e-parent\" data-id=\"87f26d4\" 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-c869941 elementor-widget elementor-widget-text-editor\" data-id=\"c869941\" 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;\">Avez-vous remarqu\u00e9 que tous les <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/solid-state-relays\/\"><span style=\"font-weight: 400;\">relais \u00e0 semi-conducteurs<\/span><\/a><\/span><span style=\"font-weight: 400;\"> sur le march\u00e9 sont des interrupteurs \u00e0 contact normalement ouvert s'ils peuvent \u00eatre class\u00e9s en fonction des diff\u00e9rents contacts comme les interrupteurs \u00e9lectromagn\u00e9tiques (bien entendu, cette m\u00e9thode de classification n'est pas scientifique car les relais \u00e0 semi-conducteurs sont des interrupteurs \u00e0 semi-conducteurs).<\/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-8aeae45 eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"8aeae45\" 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=\"8aeae45\" data-page-id=\"16702\" data-nonce=\"636274bb85\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-8aeae45\" 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\/three-phase-solid-state-relay\/3-phase-solid-state-relay-60-amp-ac-to-ac-tsr-60aa\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"TSR-60AA Relais statique triphas\u00e9 de 60 amp\u00e8res CA pour \u00e9l\u00e9ments chauffants triphas\u00e9s\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-heating-elements-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/04\/TSR-60AA-60-amps-AC-control-three-phase-solid-state-relay-for-three-phase-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\/three-phase-solid-state-relay\/3-phase-solid-state-relay-60-amp-ac-to-ac-tsr-60aa\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">Relais statique triphas\u00e9 60 Amp, AC vers AC, TSR-60AA<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/three-phase-solid-state-relay\/3-phase-solid-state-relay-60-amp-ac-to-ac-tsr-60aa\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_13419\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"13419\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201c3 Phase Solid State Relay 60 Amp, AC To AC, TSR-60AA\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_13419\" 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\/three-phase-solid-state-relay\/tsr-40da-40amps-dc-to-ac-3-phase-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\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"TSR-40DA Relais statique triphas\u00e9 DC vers AC 40 amp\u00e8res\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-phase-solid-state-relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-40DA-40-amps-DC-to-AC-three-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\/three-phase-solid-state-relay\/tsr-40da-40amps-dc-to-ac-3-phase-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">TSR-40DA Relais statique triphas\u00e9 40Amps DC vers AC<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/three-phase-solid-state-relay\/tsr-40da-40amps-dc-to-ac-3-phase-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9926\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9926\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cTSR-40DA 40Amps DC to AC 3 Phase 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_9926\" 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-40aa-ac-ac-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-40AA-40-Amps-AC-To-AC-Solid-State-Relay-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"SSR 40AA, relais statique 40 amp\u00e8res CA \u00e0 CA\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-To-AC-Solid-State-Relay-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-To-AC-Solid-State-Relay-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-To-AC-Solid-State-Relay-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-To-AC-Solid-State-Relay-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-To-AC-Solid-State-Relay-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/06\/SSR-40AA-40-Amps-AC-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-40aa-ac-ac-solid-state-relay\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">SSR 40AA, relais statique 40 amp\u00e8res CA \u00e0 CA<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/solid-state-relay\/single-phase-solid-state-relay\/ssr-40aa-ac-ac-solid-state-relay\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9767\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"9767\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSSR 40AA, 40 Amps AC 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_9767\" 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-8aeae45\");\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-d636b99 elementor-widget elementor-widget-text-editor\" data-id=\"d636b99\" 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;\">Vous pouvez vous demander s'il existe des relais statiques normalement ferm\u00e9s. Si ce n'est pas le cas, comment cette fonction peut-elle \u00eatre r\u00e9alis\u00e9e ? Dans cet article, nous vous fournirons une explication d\u00e9taill\u00e9e ainsi qu'une solution fiable. Commen\u00e7ons par le commencement.<\/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-f3fa2cb elementor-widget elementor-widget-heading\" data-id=\"f3fa2cb\" 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 qu'un relais statique NC ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6da8aa3 elementor-widget elementor-widget-image\" data-id=\"6da8aa3\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-16713\" alt=\"Relais interm\u00e9diaire avec contacts NF (normalement ferm\u00e9s)\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Intermediate-Relay-With-NCNormally-Closed-Contacts.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-145c848 elementor-widget elementor-widget-text-editor\" data-id=\"145c848\" 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;\">Le relais statique NC est un commutateur \u00e0 semi-conducteur comme le relais statique ordinaire, mais son contact est un contact normalement ferm\u00e9. Leur principe de fonctionnement est le suivant : lorsqu'aucun signal de commande n'est appliqu\u00e9, la charge est toujours activ\u00e9e ; lorsqu'un signal de commande est appliqu\u00e9, la charge est d\u00e9sactiv\u00e9e.<\/span><\/p><p><span style=\"font-weight: 400;\">Le fonctionnement d'un relais statique normalement ferm\u00e9 est tr\u00e8s similaire \u00e0 celui d'un relais \u00e9lectromagn\u00e9tique \u00e0 contacts normalement ferm\u00e9s, mais existe-t-il ? Pourquoi ne le voit-on pas ouvertement vendu sur le march\u00e9 ? Dans la section suivante, je vais expliquer pourquoi.<\/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-b1ae44a elementor-widget elementor-widget-heading\" data-id=\"b1ae44a\" 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\">Existe-t-il des relais \u00e0 semi-conducteurs NC et pourquoi ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4401d6c elementor-widget elementor-widget-text-editor\" data-id=\"4401d6c\" 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 r\u00e9alit\u00e9, les relais \u00e0 semi-conducteurs normalement ferm\u00e9s ne sont pas tr\u00e8s courants. Pourquoi en est-il ainsi ? Nous pouvons commencer par \u00e9tudier les composants des relais statiques. Comme nous l'avons mentionn\u00e9 dans <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/ssr-vs-relay-which-one-is-better\/\"><span style=\"font-weight: 400;\">blogs pr\u00e9c\u00e9dents<\/span><\/a><\/span><span style=\"font-weight: 400;\">Le circuit de sortie d'un relais statique est construit autour du thyristor dans un relais statique \u00e0 sortie AC ou du MOSFET dans un relais statique \u00e0 sortie DC.<\/span><\/p><p><span style=\"font-weight: 400;\">Le concept de relais statique normalement ferm\u00e9 (SSR) signifie qu'il poss\u00e8de des contacts normalement ferm\u00e9s similaires \u00e0 ceux d'un relais \u00e9lectromagn\u00e9tique. De ce qui pr\u00e9c\u00e8de, on peut conclure que les contacts normalement ferm\u00e9s sont r\u00e9alis\u00e9s par ses \u00e9l\u00e9ments (thyristors ou MOSFET). D'o\u00f9 la question suivante : Existe-t-il des thyristors ou des MOSFETs normalement ferm\u00e9s ?<\/span><\/p><p><span style=\"font-weight: 400;\">En fait, il n'existe pas de thyristors ou de MOSFETs normalement ferm\u00e9s. Cependant, en utilisant des circuits ou des composants externes, il est toujours possible de construire un relais statique normalement ferm\u00e9. Comment ? La section suivante vous apprendra comment.<\/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-0cdb1b8 elementor-widget elementor-widget-heading\" data-id=\"0cdb1b8\" 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\">Comment r\u00e9aliser un relais statique \u00e0 fonction normalement ferm\u00e9e ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea80592 elementor-widget elementor-widget-text-editor\" data-id=\"ea80592\" 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 tant que fournisseur professionnel de solutions de relais \u00e0 semi-conducteurs,<\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/\"> <b>Lorentzzi\u00ae<\/b><\/a><\/span><span style=\"font-weight: 400;\"> a \u00e9galement rencontr\u00e9 des demandes similaires de la part de ses clients. Ils nous ont demand\u00e9 de fournir des relais statiques normalement ferm\u00e9s. Quelle est notre solution ?<\/span><\/p><p><span style=\"font-weight: 400;\">Nous avons deux solutions : La premi\u00e8re consiste \u00e0 v\u00e9rifier si le client accepte de changer l'actionneur du relais statique (SSR) en relais interm\u00e9diaire (pour les petites charges) ou en contacteur CA (pour les grandes charges). Comme nous le savons tous, les relais interm\u00e9diaires et les contacteurs CA ont les m\u00eames fonctions que les relais statiques, mais ils sont plus largement utilis\u00e9s dans le contr\u00f4le de l'automatisation. Ces trois produits utilisent une tension basse et s\u00fbre pour contr\u00f4ler des charges lourdes \u00e0 haute tension. Les relais interm\u00e9diaires ou les contacteurs CA peuvent avoir des contacts normalement ferm\u00e9s.<\/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-1f857b4 elementor-widget elementor-widget-image\" data-id=\"1f857b4\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-16704\" alt=\"Contacteur CA normalement ferm\u00e9\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Normally-closed-AC-Contactor.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-a6c2035 elementor-widget elementor-widget-text-editor\" data-id=\"a6c2035\" 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;\">Notre deuxi\u00e8me solution consiste \u00e0 utiliser un relais interm\u00e9diaire normalement ferm\u00e9 pour contr\u00f4ler indirectement le relais statique, ce qui signifie que si aucune tension de commande n'est appliqu\u00e9e au relais interm\u00e9diaire, son circuit de charge est dans un \u00e9tat ferm\u00e9, c'est-\u00e0-dire qu'il y a un signal de commande \u00e0 l'extr\u00e9mit\u00e9 de commande du relais statique. Lorsque la tension de commande est appliqu\u00e9e au relais interm\u00e9diaire, la charge est d\u00e9connect\u00e9e et ne peut plus fournir de signal de commande au relais statique, qui d\u00e9connecte alors la charge.<\/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-fb9c786 elementor-widget elementor-widget-image\" data-id=\"fb9c786\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-16703\" alt=\"Utiliser un relais interm\u00e9diaire pour r\u00e9aliser la fonction normalement ferm\u00e9e d&#039;un relais statique\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/04\/Use-intermediate-relay-to-realize-normally-closed-function-for-solid-state-relay.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-9519d5d elementor-widget elementor-widget-heading\" data-id=\"9519d5d\" 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-93d280c elementor-widget elementor-widget-text-editor\" data-id=\"93d280c\" 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 r\u00e9sum\u00e9, les relais statiques normalement ferm\u00e9s sont rarement utilis\u00e9s dans l'automatisation industrielle. S'ils doivent \u00eatre utilis\u00e9s, ils peuvent \u00eatre mis en \u0153uvre par le biais de circuits externes, tels que la commande indirecte de relais interm\u00e9diaires normalement ferm\u00e9s ou l'utilisation de contacteurs CA normalement ferm\u00e9s, comme mentionn\u00e9 ci-dessus.<\/span><\/p><p><span style=\"font-weight: 400;\">En tant que fournisseur leader de solutions de relais statiques en Chine, Lorentzzi ne fournit pas seulement des relais statiques de haute qualit\u00e9, mais aide \u00e9galement les clients \u00e0 trouver la meilleure solution pour leurs applications. Si vous avez encore des questions ou si vous souhaitez que nous vous fournissions des solutions, veuillez 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;\">notre \u00e9quipe vous r\u00e9pondra 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>Have you noticed that all solid-state relays on the market are normally open contact switches if they can be classified according to the different contacts like electromagnetic switches (of course, this classification method is not scientific because solid-state relays are semiconductor switches). 3 Phase Solid State Relay 60 Amp, AC To AC, TSR-60AA View More [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16705,"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-16702","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>NC Solid State Relay: Does It Exist And How to Realize?<\/title>\n<meta name=\"description\" content=\"This blog will reveal the secrets of NC solid state relay: does it really exist? 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