{"id":12903,"date":"2023-11-19T15:54:28","date_gmt":"2023-11-19T07:54:28","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=12903"},"modified":"2025-07-07T10:25:10","modified_gmt":"2025-07-07T02:25:10","slug":"ssr-vs-relay-which-one-is-better","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/es\/ssr-vs-relay-which-one-is-better\/","title":{"rendered":"SSR vs Rel\u00e9: \u00bfCu\u00e1l es mejor?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"12903\" class=\"elementor elementor-12903\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e33d536 e-flex e-con-boxed e-con e-parent\" data-id=\"e33d536\" 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-7df0106 elementor-widget elementor-widget-text-editor\" data-id=\"7df0106\" 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>Solid state relays and mechanical relays are two common products in electrical systems, but which one is more suitable for us to use? This article will provide knowledge from what are SSR and relays, <b>SSR vs Relay<\/b> differences and our advice on which one to choose.<\/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-5328065 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"5328065\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;bullets&quot;,&quot;icon&quot;:{&quot;value&quot;:&quot;fas fa-circle&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;no_headings_message&quot;:&quot;\\u041d\\u0430 \\u0441\\u0442\\u0440\\u0430\\u043d\\u0438\\u0446\\u0435 \\u043d\\u0435 \\u043d\\u0430\\u0439\\u0434\\u0435\\u043d\\u044b \\u0437\\u0430\\u0433\\u043e\\u043b\\u043e\\u0432\\u043a\\u0438.&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__5328065\" aria-expanded=\"true\" aria-label=\"\u041e\u0442\u043a\u0440\u044b\u0442\u044c \u043e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__5328065\" aria-expanded=\"true\" aria-label=\"\u0417\u0430\u043a\u0440\u044b\u0442\u044c \u043e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__5328065\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64682bb elementor-widget elementor-widget-heading\" data-id=\"64682bb\" 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\">What is a SSR?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c26e808 elementor-widget elementor-widget-text-editor\" data-id=\"c26e808\" 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>SSR is the abbreviation of <strong>Solid State Relay<\/strong>. Solid state relay is a new type of non-contact switch that uses small voltage and small current to control the switching of large voltage. Generally, solid-state relays on the market are divided into three types according to different control voltages, namely DC-controlled AC SSR, AC-controlled AC SSR and DC-controlled DC SSR. From the perspective of controlled voltage, solid-state relays are divided into single-phase solid-state relays and three-phase solid-state relays.<\/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-2b7bfee eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"2b7bfee\" 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=\"2b7bfee\" data-page-id=\"12903\" data-nonce=\"636274bb85\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-2b7bfee\" 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\/es\/products\/solid-state-relay\/single-phase-solid-state-relay\/din-rail-solid-state-relay-with-heatsink\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"DIN rail solid state relay with heatsink\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/DIN-rail-solid-state-relay-2.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/es\/products\/solid-state-relay\/single-phase-solid-state-relay\/din-rail-solid-state-relay-with-heatsink\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">DIN Rail Solid State Relay With Heatsink<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/es\/products\/solid-state-relay\/single-phase-solid-state-relay\/din-rail-solid-state-relay-with-heatsink\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_10202\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"10202\" data-product_sku=\"\" aria-label=\"Lee m\u00e1s sobre &ldquo;DIN Rail Solid 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150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-60DA-1a-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-60DA-1a-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-60DA-1a-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/07\/TSR-60DA-1a.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/es\/products\/solid-state-relay\/three-phase-solid-state-relay\/60-amp-3-phase-ssr-tsr-60da\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">TSR 60DA 60 Amp 3 Phase SSR<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/es\/products\/solid-state-relay\/three-phase-solid-state-relay\/60-amp-3-phase-ssr-tsr-60da\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_9951\" data-quantity=\"1\" class=\"button product_type_simple\" 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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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;SSR-25DA DC To AC 25A Solid State Relay(SSR)&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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\/es\/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 Single Phase 40 Amps DC To AC Solid State Relay For Heating Elements\" 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\/es\/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 Solid State Relay, Single Phase DC To AC 40A SSR<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/es\/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=\"Lee m\u00e1s sobre &ldquo;SSR-40DA Solid State Relay, Single Phase DC To AC 40A SSR&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-2b7bfee\");\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-a5d2143 elementor-widget elementor-widget-text-editor\" data-id=\"a5d2143\" 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>Solid state relay consists of three parts: controlled circuit, driving circuit and output circuit. There is an optocoupler in the drive circuit to isolate the low-voltage part and the high-voltage part. That&#8217;s why it&#8217;s safer to use and makes no noise.<\/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-fdad8f9 elementor-widget elementor-widget-image\" data-id=\"fdad8f9\" 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=\"700\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Solid-state-relay-circuit.jpg\" class=\"attachment-medium_large size-medium_large wp-image-12907\" alt=\"Solid state relay circuit\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Solid-state-relay-circuit.jpg 700w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Solid-state-relay-circuit-300x219.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Solid-state-relay-circuit-600x439.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Solid-state-relay-circuit-64x47.jpg 64w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\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-fab7ca8 elementor-widget elementor-widget-text-editor\" data-id=\"fab7ca8\" 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>Image Courtesy: <a href=\"https:\/\/www.allaboutcircuits.com\/technical-articles\/basics-of-ssr-solid-state-relay-the-switching-device\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff0000;\">https:\/\/www.allaboutcircuits.com\/technical-articles\/basics-of-ssr-solid-state-relay-the-switching-device\/<\/span><\/a><\/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-3cbfac8 elementor-widget elementor-widget-heading\" data-id=\"3cbfac8\" 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\">What is a relay?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94483e4 elementor-widget elementor-widget-image\" data-id=\"94483e4\" 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=\"700\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-composition.jpg\" class=\"attachment-large size-large wp-image-12908\" alt=\"Mechanical relay composition\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-composition.jpg 700w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-composition-300x219.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-composition-600x439.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-composition-64x47.jpg 64w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\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-cbd8ffa elementor-widget elementor-widget-text-editor\" data-id=\"cbd8ffa\" 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>Image Courtesy: <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/components.omron.com\/us-en\/products\/basic-knowledge\/relays\/basics\" target=\"_blank\" rel=\"noopener\">https:\/\/components.omron.com\/us-en\/products\/basic-knowledge\/relays\/basics<\/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-e6f7fa0 elementor-widget elementor-widget-text-editor\" data-id=\"e6f7fa0\" 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>The relay we are talking about here is an intermediate relay or a mechanical relay. It is a switch that uses the electromagnetic effect generated on the coil to close or open the contacts. It is the most commonly used switch in many electrical devices, ranging from radios and refrigerators to cars and airplanes.<\/p><p>The mechanical relay consists of a fixed iron core, a moving iron core, a return spring, a moving contact, a static contact, a coil, wiring pins and a shell.l, which is the same as a contactor.<\/p><p>The relay is also used for controlling a high voltage by a small DC or AC voltage.<\/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-5ddc8fa elementor-widget elementor-widget-heading\" data-id=\"5ddc8fa\" 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\">SSR vs Relay: What are the differences?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a6d70f elementor-widget elementor-widget-text-editor\" data-id=\"7a6d70f\" 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>There are 7 differences when SSR vs relay:<\/p><ul><li>The working principles are different: the working principle of the relay is based on the electromagnetic effect, and the working principle of the SSR is based on the conduction and cut-off characteristics of the semiconductor device.<\/li><li>The structure is different: a relay is a product that combines mechanical and electrical components. However, \u00a0the SSR is a completely electronic device with no mechanical parts.<\/li><li>Switching speeds are different: The SSR switching speed is much faster than a relay, the relay switching speed is around 50 milliseconds. However, the solid state relay switching speed is around 50 nanoseconds (This data is from <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.sparkfun.com\/news\/3330\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sparkfun.com\/news\/3330<\/a><\/span>).<\/li><li>Noise difference: If you have used mechanical relays before, you will find that when we use a small voltage to turn on a large voltage load, a &#8220;pop&#8221; sound will be produced. A typical example is this sound from the <strong>Turn Signal Relay<\/strong>while driving and turning on the turn signal. But if you switch to SSR, there will be no noise. This is a very quiet product.<\/li><li>Sparks: When the load circuit is closed, the two contacts of the relay will generate arcs and sparks due to excessive current. However, an SSR does not because the output is controlled by a semiconductor thyristor.<\/li><\/ul>\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-1974653 elementor-widget elementor-widget-image\" data-id=\"1974653\" 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=\"700\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-arc-when-closing.jpg\" class=\"attachment-large size-large wp-image-12909\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-arc-when-closing.jpg 700w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-arc-when-closing-300x219.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-arc-when-closing-600x439.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/11\/Mechanical-relay-arc-when-closing-64x47.jpg 64w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\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-e4e45f1 elementor-widget elementor-widget-text-editor\" data-id=\"e4e45f1\" 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>Image Courtesy: <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.phidgets.com\/docs\/Mechanical_Relay_Guide\">https:\/\/www.phidgets.com\/docs\/Mechanical_Relay_Guide<\/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-9345d77 elementor-widget elementor-widget-text-editor\" data-id=\"9345d77\" 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<ul><li>Lifespan differences: The life of a relay is usually between tens of thousands to hundreds of thousands of times, but the life of a solid-state contactor can reach more than 1 million times. Therefore, the life of solid state contactors far exceeds that of relays.<\/li><li>Price difference: Relay is a widely used component and is much cheaper than SSR. Another point is that SSR generates a lot of heat when working, so it needs to be installed on a suitable heat sink. Relays do not.<\/li><\/ul>\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-bdcb27b elementor-widget elementor-widget-heading\" data-id=\"bdcb27b\" 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\">Advantages and disadvantages of a SSR and a relay<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1c68a0 elementor-widget elementor-widget-text-editor\" data-id=\"d1c68a0\" 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><strong>SSR advantages:<\/strong><\/p><ul><li>No spark<\/li><li>Very silent<\/li><li>Faster switching speed<\/li><li>Lifespan is long<\/li><li>Suitable for hazardous environments such as coal mines, flour mills, etc.<\/li><li>Suitable for frequent switching occasions, such as temperature control<\/li><\/ul><p><strong>SSR disadvantages:<\/strong><\/p><ul><li>A large amount of heat is generated during operation and a radiator is required to help dissipate heat.<\/li><li>Higher price<\/li><\/ul><p><strong>Relay advantages:<\/strong><\/p><ul><li>Low cost<\/li><li>Broad usage ranging<\/li><li>No radiator required for cooling<\/li><li>Suitable for low-frequency switching situations, such as motor starting.<\/li><\/ul><p><strong>Relay disadvantages:<\/strong><\/p><ul><li>Short life<\/li><li>It will produce sparks and cannot be used in environments with explosive substances.<\/li><li>There is noise during operation<\/li><\/ul>\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-467ea9b elementor-widget elementor-widget-heading\" data-id=\"467ea9b\" 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\">Which one is better?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f252c8 elementor-widget elementor-widget-text-editor\" data-id=\"0f252c8\" 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>Under the condition that the relay frequently closes and disconnects, it is best to use a solid-state relay, for example, to control the temperature to remain constant at a certain value. On the contrary, use a relay in situations where frequent closing and closing is not required, such as using a relay to control the start and operation of a water pump, etc. . That is to say, the frequent operation of solid-state relays has little effect on the service life, but if ordinary relays are used instead, the service life will be shortened, and the frequent suction noise will be loud.<\/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-61ed737 elementor-widget elementor-widget-heading\" data-id=\"61ed737\" 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-28aac1d elementor-widget elementor-widget-text-editor\" data-id=\"28aac1d\" 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>Although there are many differences between SSRs and relays, they are both excellent products for turning heavy loads on or off with a small and safe voltage. If you have enough budget and want to run silently and switch frequently, choosing SSR as an activator is a wise choice. If you have a tight budget and few switches, choose relays.<\/p><p>As China&#8217;s leading SSR manufacturer, <a href=\"https:\/\/lorentzzi.com\/\"><span style=\"color: #ff0000;\">Lorentzzi<\/span><\/a> has extensive experience in producing various <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/solid-state-relays\/\">solid state relays<\/a><\/span>. We focus on product quality and service. Please contact us for the latest wholesale prices of SSRs.<\/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>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Solid state relays and mechanical relays are two common products in electrical systems, but which one is more suitable for us to use? This article will provide knowledge from what are SSR and relays, SSR vs Relay differences and our advice on which one to choose. Table of Contents What is a SSR? SSR is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12906,"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":"disabled","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 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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-12903","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>SSR Vs Relay: Which One Is Better?<\/title>\n<meta name=\"description\" content=\"Solid state relays and mechanical relays are two common products in electrical systems, but which one is more suitable for us to use?\" \/>\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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