{"id":30370,"date":"2026-07-23T12:57:29","date_gmt":"2026-07-23T04:57:29","guid":{"rendered":"https:\/\/www.cnspd.com\/?p=30370"},"modified":"2026-07-23T16:08:23","modified_gmt":"2026-07-23T08:08:23","slug":"spd-sccr-rating-guide-for-panel-builders-and-oem-buyers","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/","title":{"rendered":"Guide de classification SCCR SPD pour les fabricants de panneaux et les acheteurs OEM"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"30370\" class=\"elementor elementor-30370\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f21f219 e-flex e-con-boxed e-con e-parent\" data-id=\"f21f219\" 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-287f42b elementor-widget elementor-widget-html\" data-id=\"287f42b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style id=\"leeyee-spd-sccr-article-styles\">\r\n  :root {\r\n    --sccr-blue: #004898;\r\n    --sccr-blue-dark: #00356f;\r\n    --sccr-blue-soft: #eef6fd;\r\n    --sccr-blue-pale: #f7fbff;\r\n    --sccr-text: #1d2736;\r\n    --sccr-muted: #5d6878;\r\n    --sccr-border: #d9e2ec;\r\n    --sccr-border-dark: #bdcad7;\r\n    --sccr-white: #ffffff;\r\n    --sccr-orange: #b85a12;\r\n    --sccr-orange-soft: #fff6ed;\r\n    --sccr-green: #176b47;\r\n    --sccr-green-soft: #edf8f2;\r\n    --sccr-red: #a7352b;\r\n    --sccr-red-soft: #fff2f0;\r\n    --sccr-shadow: 0 8px 24px rgba(26, 53, 82, 0.07);\r\n    --sccr-radius: 14px;\r\n    --sccr-content: 960px;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article,\r\n  #leeyee-spd-sccr-article *,\r\n  #leeyee-spd-sccr-article *::before,\r\n  #leeyee-spd-sccr-article *::after {\r\n    box-sizing: border-box;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article {\r\n    width: 100%;\r\n    margin: 0;\r\n    padding: 0;\r\n    color: var(--sccr-text);\r\n    background: var(--sccr-white);\r\n    font-family: Arial, Helvetica, sans-serif;\r\n    font-size: 17px;\r\n    line-height: 1.72;\r\n    -webkit-font-smoothing: antialiased;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article img {\r\n    display: block;\r\n    max-width: 100%;\r\n    height: auto;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article a {\r\n    color: var(--sccr-blue);\r\n    text-decoration-thickness: 1px;\r\n    text-underline-offset: 3px;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article a:hover {\r\n    color: var(--sccr-blue-dark);\r\n  }\r\n\r\n  #leeyee-spd-sccr-article h2,\r\n  #leeyee-spd-sccr-article h3,\r\n  #leeyee-spd-sccr-article h4 {\r\n    margin-top: 0;\r\n    color: #142b45;\r\n    font-weight: 800;\r\n    line-height: 1.25;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article h2 {\r\n    margin-bottom: 18px;\r\n    font-size: 32px;\r\n    letter-spacing: -0.025em;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article h3 {\r\n    margin-bottom: 11px;\r\n    font-size: 23px;\r\n    letter-spacing: -0.012em;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article h4 {\r\n    margin-bottom: 8px;\r\n    font-size: 18px;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article p {\r\n    margin-top: 0;\r\n    margin-bottom: 17px;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article p:last-child {\r\n    margin-bottom: 0;\r\n  }\r\n\r\n  .sccr-article-shell {\r\n    width: min(calc(100% - 40px), var(--sccr-content));\r\n    margin-right: auto;\r\n    margin-left: auto;\r\n  }\r\n\r\n  .sccr-article-header {\r\n    padding: 42px 0 24px;\r\n    border-bottom: 1px solid var(--sccr-border);\r\n  }\r\n\r\n  .sccr-article-category {\r\n    margin-bottom: 11px;\r\n    color: var(--sccr-blue);\r\n    font-size: 12px;\r\n    font-weight: 800;\r\n    line-height: 1.35;\r\n    letter-spacing: 0.08em;\r\n    text-transform: uppercase;\r\n  }\r\n\r\n  .sccr-article-lead {\r\n    max-width: 850px;\r\n    margin-bottom: 19px;\r\n    color: #354356;\r\n    font-size: 20px;\r\n    line-height: 1.65;\r\n  }\r\n\r\n  .sccr-article-meta {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 8px 22px;\r\n    color: var(--sccr-muted);\r\n    font-size: 13px;\r\n    line-height: 1.5;\r\n  }\r\n\r\n  .sccr-article-meta strong {\r\n    color: #324156;\r\n  }\r\n\r\n  .sccr-section {\r\n    padding: 58px 0;\r\n  }\r\n\r\n  .sccr-section + .sccr-section {\r\n    border-top: 1px solid #edf1f5;\r\n  }\r\n\r\n  .sccr-section--soft {\r\n    background: var(--sccr-blue-pale);\r\n  }\r\n\r\n  .sccr-section-intro {\r\n    max-width: 820px;\r\n    color: var(--sccr-muted);\r\n    font-size: 18px;\r\n  }\r\n\r\n  .sccr-anchor {\r\n    scroll-margin-top: 28px;\r\n  }\r\n\r\n  .sccr-source {\r\n    font-size: 0.75em;\r\n    font-weight: 800;\r\n    text-decoration: none;\r\n    vertical-align: super;\r\n  }\r\n\r\n  .sccr-quick-answer {\r\n    margin-top: 26px;\r\n    padding: 27px 29px;\r\n    border: 1px solid #bdd5ec;\r\n    border-left: 5px solid var(--sccr-blue);\r\n    border-radius: var(--sccr-radius);\r\n    background: var(--sccr-blue-pale);\r\n  }\r\n\r\n  .sccr-quick-answer h2 {\r\n    margin-bottom: 13px !important;\r\n    font-size: 27px !important;\r\n  }\r\n\r\n  .sccr-quick-answer p {\r\n    font-size: 18px;\r\n  }\r\n\r\n  .sccr-formula {\r\n    display: grid;\r\n    grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr);\r\n    gap: 13px;\r\n    align-items: stretch;\r\n    margin-top: 23px;\r\n  }\r\n\r\n  .sccr-formula-box {\r\n    display: flex;\r\n    min-height: 96px;\r\n    padding: 17px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 10px;\r\n    flex-direction: column;\r\n    align-items: center;\r\n    justify-content: center;\r\n    background: var(--sccr-white);\r\n    text-align: center;\r\n  }\r\n\r\n  .sccr-formula-box span {\r\n    display: block;\r\n    margin-bottom: 4px;\r\n    color: var(--sccr-muted);\r\n    font-size: 11px;\r\n    font-weight: 800;\r\n    letter-spacing: 0.05em;\r\n    text-transform: uppercase;\r\n  }\r\n\r\n  .sccr-formula-box strong {\r\n    color: #173555;\r\n    font-size: 17px;\r\n    line-height: 1.4;\r\n  }\r\n\r\n  .sccr-formula-symbol {\r\n    display: flex;\r\n    min-height: 96px;\r\n    border-radius: 10px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 29px;\r\n    font-weight: 900;\r\n  }\r\n\r\n  .sccr-toc {\r\n    margin-top: 24px;\r\n    padding: 24px 26px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: var(--sccr-radius);\r\n    background: var(--sccr-white);\r\n    box-shadow: var(--sccr-shadow);\r\n  }\r\n\r\n  .sccr-toc h2 {\r\n    margin-bottom: 14px !important;\r\n    font-size: 22px !important;\r\n  }\r\n\r\n  .sccr-toc ol {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 7px 28px;\r\n    margin: 0;\r\n    padding-left: 23px;\r\n  }\r\n\r\n  .sccr-toc li {\r\n    padding-left: 3px;\r\n    color: var(--sccr-muted);\r\n    font-size: 14px;\r\n  }\r\n\r\n  .sccr-toc a {\r\n    font-weight: 700;\r\n    text-decoration: none;\r\n  }\r\n\r\n  .sccr-key-points {\r\n    display: grid;\r\n    grid-template-columns: repeat(3, minmax(0, 1fr));\r\n    gap: 17px;\r\n    margin-top: 28px;\r\n  }\r\n\r\n  .sccr-key-point {\r\n    padding: 21px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 12px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-key-point::before {\r\n    display: block;\r\n    width: 38px;\r\n    height: 4px;\r\n    margin-bottom: 16px;\r\n    border-radius: 99px;\r\n    background: var(--sccr-blue);\r\n    content: \"\";\r\n  }\r\n\r\n  .sccr-key-point:nth-child(2)::before {\r\n    background: var(--sccr-orange);\r\n  }\r\n\r\n  .sccr-key-point:nth-child(3)::before {\r\n    background: var(--sccr-green);\r\n  }\r\n\r\n  .sccr-key-point h3 {\r\n    font-size: 19px !important;\r\n  }\r\n\r\n  .sccr-key-point p {\r\n    color: var(--sccr-muted);\r\n    font-size: 14px;\r\n    line-height: 1.62;\r\n  }\r\n\r\n  .sccr-figure {\r\n    margin: 32px 0 0;\r\n    padding: 11px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: var(--sccr-radius);\r\n    background: var(--sccr-white);\r\n    box-shadow: var(--sccr-shadow);\r\n  }\r\n\r\n  .sccr-figure img {\r\n    width: 100%;\r\n    border-radius: 9px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-figure figcaption {\r\n    padding: 12px 8px 3px;\r\n    color: var(--sccr-muted);\r\n    font-size: 13px;\r\n    line-height: 1.55;\r\n    text-align: center;\r\n  }\r\n\r\n  .sccr-full-image-link {\r\n    display: inline-block;\r\n    margin-top: 4px;\r\n    font-size: 12px;\r\n    font-weight: 700;\r\n  }\r\n\r\n  .sccr-table-wrap {\r\n    margin-top: 25px;\r\n    border: 1px solid var(--sccr-border-dark);\r\n    border-radius: var(--sccr-radius);\r\n    overflow: hidden;\r\n    background: var(--sccr-white);\r\n    box-shadow: var(--sccr-shadow);\r\n  }\r\n\r\n  .sccr-table {\r\n    width: 100%;\r\n    margin: 0;\r\n    border-collapse: collapse;\r\n    table-layout: fixed;\r\n    font-size: 14px;\r\n    line-height: 1.5;\r\n  }\r\n\r\n  .sccr-table th,\r\n  .sccr-table td {\r\n    padding: 15px 14px;\r\n    border-right: 1px solid var(--sccr-border);\r\n    border-bottom: 1px solid var(--sccr-border);\r\n    text-align: left;\r\n    vertical-align: top;\r\n    overflow-wrap: anywhere;\r\n  }\r\n\r\n  .sccr-table th:last-child,\r\n  .sccr-table td:last-child {\r\n    border-right: 0;\r\n  }\r\n\r\n  .sccr-table tr:last-child td {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .sccr-table thead th {\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n  }\r\n\r\n  .sccr-table tbody tr:nth-child(even) td {\r\n    background: #f8fafc;\r\n  }\r\n\r\n  .sccr-table td:first-child {\r\n    color: #153859;\r\n    font-weight: 800;\r\n  }\r\n\r\n  .sccr-alert {\r\n    display: grid;\r\n    grid-template-columns: 41px minmax(0, 1fr);\r\n    gap: 15px;\r\n    margin-top: 23px;\r\n    padding: 20px 22px;\r\n    border-radius: 12px;\r\n  }\r\n\r\n  .sccr-alert--info {\r\n    border: 1px solid #bdd6ec;\r\n    background: var(--sccr-blue-soft);\r\n  }\r\n\r\n  .sccr-alert--warning {\r\n    border: 1px solid #ebc29f;\r\n    background: var(--sccr-orange-soft);\r\n  }\r\n\r\n  .sccr-alert--danger {\r\n    border: 1px solid #ebbbb6;\r\n    background: var(--sccr-red-soft);\r\n  }\r\n\r\n  .sccr-alert-icon {\r\n    display: flex;\r\n    width: 38px;\r\n    height: 38px;\r\n    border-radius: 10px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 18px;\r\n    font-weight: 900;\r\n  }\r\n\r\n  .sccr-alert--warning .sccr-alert-icon {\r\n    background: var(--sccr-orange);\r\n  }\r\n\r\n  .sccr-alert--danger .sccr-alert-icon {\r\n    background: var(--sccr-red);\r\n  }\r\n\r\n  .sccr-alert h3 {\r\n    margin-bottom: 6px !important;\r\n    font-size: 19px !important;\r\n  }\r\n\r\n  .sccr-two-columns {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 20px;\r\n    margin-top: 26px;\r\n  }\r\n\r\n  .sccr-plain-box {\r\n    padding: 23px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 12px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-plain-box h3 {\r\n    font-size: 20px !important;\r\n  }\r\n\r\n  .sccr-plain-box p,\r\n  .sccr-plain-box li {\r\n    font-size: 15px;\r\n  }\r\n\r\n  .sccr-plain-box ul {\r\n    margin: 14px 0 0;\r\n    padding-left: 21px;\r\n  }\r\n\r\n  .sccr-plain-box li + li {\r\n    margin-top: 6px;\r\n  }\r\n\r\n  .sccr-equation {\r\n    margin: 17px 0;\r\n    padding: 16px 18px;\r\n    border-left: 4px solid var(--sccr-blue);\r\n    border-radius: 8px;\r\n    color: #153859;\r\n    background: var(--sccr-blue-soft);\r\n    font-family: \"Courier New\", Courier, monospace;\r\n    font-size: 17px;\r\n    font-weight: 800;\r\n    line-height: 1.5;\r\n    text-align: center;\r\n    overflow-wrap: anywhere;\r\n  }\r\n\r\n  .sccr-project-details {\r\n    display: grid;\r\n    grid-template-columns: repeat(4, minmax(0, 1fr));\r\n    gap: 11px;\r\n    margin: 24px 0;\r\n  }\r\n\r\n  .sccr-project-detail {\r\n    padding: 15px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 10px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-project-detail span {\r\n    display: block;\r\n    margin-bottom: 4px;\r\n    color: var(--sccr-muted);\r\n    font-size: 10px;\r\n    font-weight: 800;\r\n    letter-spacing: 0.05em;\r\n    text-transform: uppercase;\r\n  }\r\n\r\n  .sccr-project-detail strong {\r\n    color: #153859;\r\n    font-size: 15px;\r\n    line-height: 1.4;\r\n  }\r\n\r\n  .sccr-option {\r\n    position: relative;\r\n    padding-top: 27px;\r\n  }\r\n\r\n  .sccr-option::before {\r\n    position: absolute;\r\n    top: 0;\r\n    left: 0;\r\n    width: 100%;\r\n    height: 5px;\r\n    border-radius: 12px 12px 0 0;\r\n    background: var(--sccr-red);\r\n    content: \"\";\r\n  }\r\n\r\n  .sccr-option--pass::before {\r\n    background: var(--sccr-green);\r\n  }\r\n\r\n  .sccr-status {\r\n    display: inline-flex;\r\n    margin-bottom: 13px;\r\n    padding: 6px 9px;\r\n    border-radius: 6px;\r\n    color: var(--sccr-red);\r\n    background: var(--sccr-red-soft);\r\n    font-size: 11px;\r\n    font-weight: 900;\r\n    letter-spacing: 0.04em;\r\n    text-transform: uppercase;\r\n  }\r\n\r\n  .sccr-option--pass .sccr-status {\r\n    color: var(--sccr-green);\r\n    background: var(--sccr-green-soft);\r\n  }\r\n\r\n  .sccr-spec-list {\r\n    display: grid;\r\n    gap: 7px;\r\n    margin: 14px 0 18px;\r\n    padding: 0;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-spec-list li {\r\n    display: flex;\r\n    gap: 10px;\r\n    padding-bottom: 7px;\r\n    border-bottom: 1px dashed var(--sccr-border);\r\n    justify-content: space-between;\r\n    color: var(--sccr-muted);\r\n    font-size: 14px;\r\n  }\r\n\r\n  .sccr-spec-list strong {\r\n    color: var(--sccr-text);\r\n    text-align: right;\r\n  }\r\n\r\n  .sccr-steps {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 14px;\r\n    margin-top: 26px;\r\n  }\r\n\r\n  .sccr-step {\r\n    display: grid;\r\n    grid-template-columns: 40px minmax(0, 1fr);\r\n    gap: 14px;\r\n    padding: 19px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 11px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-step-number {\r\n    display: flex;\r\n    width: 38px;\r\n    height: 38px;\r\n    border-radius: 9px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 12px;\r\n    font-weight: 900;\r\n  }\r\n\r\n  .sccr-step h3 {\r\n    margin-bottom: 5px !important;\r\n    font-size: 18px !important;\r\n  }\r\n\r\n  .sccr-step p {\r\n    color: var(--sccr-muted);\r\n    font-size: 14px;\r\n    line-height: 1.58;\r\n  }\r\n\r\n  .sccr-evidence {\r\n    margin-top: 25px;\r\n    padding: 24px 26px;\r\n    border: 1px solid #bdd5eb;\r\n    border-radius: var(--sccr-radius);\r\n    background: var(--sccr-blue-pale);\r\n  }\r\n\r\n  .sccr-evidence h3 {\r\n    font-size: 21px !important;\r\n  }\r\n\r\n  .sccr-evidence-list {\r\n    margin: 17px 0 0;\r\n    padding-left: 21px;\r\n  }\r\n\r\n  .sccr-evidence-list li + li {\r\n    margin-top: 10px;\r\n  }\r\n\r\n  .sccr-evidence-list strong {\r\n    color: #173b5d;\r\n  }\r\n\r\n  .sccr-checklist {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 9px 22px;\r\n    margin: 20px 0 0;\r\n    padding: 0;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-checklist li {\r\n    display: grid;\r\n    grid-template-columns: 21px minmax(0, 1fr);\r\n    gap: 9px;\r\n    align-items: start;\r\n    padding-bottom: 8px;\r\n    border-bottom: 1px solid var(--sccr-border);\r\n    font-size: 14px;\r\n  }\r\n\r\n  .sccr-checklist li::before {\r\n    display: flex;\r\n    width: 19px;\r\n    height: 19px;\r\n    margin-top: 2px;\r\n    border-radius: 50%;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 9px;\r\n    font-weight: 900;\r\n    content: \"\u2713\";\r\n  }\r\n\r\n  .sccr-light-cta {\r\n    margin-top: 30px;\r\n    padding: 25px 27px;\r\n    border: 1px solid #b9d3ea;\r\n    border-radius: var(--sccr-radius);\r\n    background: var(--sccr-blue-pale);\r\n  }\r\n\r\n  .sccr-light-cta h3 {\r\n    font-size: 22px !important;\r\n  }\r\n\r\n  .sccr-light-cta-actions {\r\n    margin-top: 18px;\r\n  }\r\n\r\n  .sccr-button,\r\n  .sccr-button:visited {\r\n    display: inline-flex;\r\n    min-height: 46px;\r\n    padding: 12px 19px;\r\n    border: 1px solid var(--sccr-blue);\r\n    border-radius: 8px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white) !important;\r\n    background: var(--sccr-blue);\r\n    font-size: 14px;\r\n    font-weight: 800;\r\n    line-height: 1.3;\r\n    text-align: center;\r\n    text-decoration: none !important;\r\n  }\r\n\r\n  .sccr-button:hover {\r\n    color: var(--sccr-white) !important;\r\n    background: var(--sccr-blue-dark);\r\n  }\r\n\r\n  .sccr-button span,\r\n  .sccr-button:visited span,\r\n  .sccr-button:hover span,\r\n  .sccr-button.leeyee-site-popup-btn span {\r\n    display: inline-block !important;\r\n    color: #ffffff !important;\r\n    opacity: 1 !important;\r\n  }\r\n\r\n  .sccr-faq {\r\n    display: grid;\r\n    gap: 11px;\r\n    margin-top: 23px;\r\n  }\r\n\r\n  .sccr-faq details {\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 10px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-faq summary {\r\n    position: relative;\r\n    padding: 17px 50px 17px 19px;\r\n    color: #173653;\r\n    cursor: pointer;\r\n    font-size: 16px;\r\n    font-weight: 800;\r\n    line-height: 1.45;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-faq summary::-webkit-details-marker {\r\n    display: none;\r\n  }\r\n\r\n  .sccr-faq summary::after {\r\n    position: absolute;\r\n    top: 50%;\r\n    right: 18px;\r\n    display: flex;\r\n    width: 26px;\r\n    height: 26px;\r\n    border-radius: 7px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-blue);\r\n    background: var(--sccr-blue-soft);\r\n    font-size: 17px;\r\n    content: \"+\";\r\n    transform: translateY(-50%);\r\n  }\r\n\r\n  .sccr-faq details[open] summary::after {\r\n    content: \"\u2212\";\r\n  }\r\n\r\n  .sccr-faq-answer {\r\n    padding: 0 19px 18px;\r\n    color: var(--sccr-muted);\r\n    font-size: 15px;\r\n  }\r\n\r\n  .sccr-related-list {\r\n    display: grid;\r\n    gap: 9px;\r\n    margin: 20px 0 0;\r\n    padding: 0;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-related-list li {\r\n    padding: 13px 15px;\r\n    border-left: 3px solid var(--sccr-blue);\r\n    background: var(--sccr-blue-pale);\r\n  }\r\n\r\n  .sccr-related-list a {\r\n    font-weight: 800;\r\n    text-decoration: none;\r\n  }\r\n\r\n  .sccr-related-list span {\r\n    display: block;\r\n    margin-top: 2px;\r\n    color: var(--sccr-muted);\r\n    font-size: 13px;\r\n  }\r\n\r\n  .sccr-references {\r\n    padding: 56px 0;\r\n    border-top: 1px solid var(--sccr-border);\r\n    background: #f7f9fb;\r\n  }\r\n\r\n  .sccr-reference-list {\r\n    display: grid;\r\n    gap: 10px;\r\n    margin: 22px 0 0;\r\n    padding: 0;\r\n    counter-reset: sccr-reference;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-reference-list li {\r\n    position: relative;\r\n    padding: 13px 15px 13px 47px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 9px;\r\n    background: var(--sccr-white);\r\n    counter-increment: sccr-reference;\r\n    font-size: 13px;\r\n    line-height: 1.58;\r\n    overflow-wrap: anywhere;\r\n  }\r\n\r\n  .sccr-reference-list li::before {\r\n    position: absolute;\r\n    top: 12px;\r\n    left: 12px;\r\n    display: flex;\r\n    width: 25px;\r\n    height: 25px;\r\n    border-radius: 6px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    color: var(--sccr-white);\r\n    background: var(--sccr-blue);\r\n    font-size: 10px;\r\n    font-weight: 900;\r\n    content: counter(sccr-reference);\r\n  }\r\n\r\n  .sccr-reference-list a {\r\n    font-weight: 700;\r\n    overflow-wrap: anywhere;\r\n  }\r\n\r\n  .sccr-brand-note {\r\n    margin-top: 25px;\r\n    padding-top: 20px;\r\n    border-top: 1px solid var(--sccr-border);\r\n    color: var(--sccr-muted);\r\n    font-size: 13px;\r\n    line-height: 1.65;\r\n  }\r\n\r\n  .sccr-brand-note strong {\r\n    color: #173653;\r\n  }\r\n\r\n  .sccr-revision {\r\n    margin-top: 22px;\r\n    border: 1px solid var(--sccr-border);\r\n    border-radius: 9px;\r\n    background: var(--sccr-white);\r\n  }\r\n\r\n  .sccr-revision summary {\r\n    position: relative;\r\n    padding: 14px 44px 14px 16px;\r\n    color: #173653;\r\n    cursor: pointer;\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n    list-style: none;\r\n  }\r\n\r\n  .sccr-revision summary::-webkit-details-marker {\r\n    display: none;\r\n  }\r\n\r\n  .sccr-revision summary::after {\r\n    position: absolute;\r\n    top: 50%;\r\n    right: 16px;\r\n    color: var(--sccr-blue);\r\n    font-size: 18px;\r\n    content: \"+\";\r\n    transform: translateY(-50%);\r\n  }\r\n\r\n  .sccr-revision[open] summary::after {\r\n    content: \"\u2212\";\r\n  }\r\n\r\n  .sccr-revision-body {\r\n    padding: 0 16px 16px;\r\n    color: var(--sccr-muted);\r\n    font-size: 13px;\r\n  }\r\n\r\n  #leeyee-spd-sccr-article :focus-visible {\r\n    outline: 3px solid #68b8f6;\r\n    outline-offset: 3px;\r\n  }\r\n\r\n  @media (max-width: 1440px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 44px), var(--sccr-content));\r\n    }\r\n  }\r\n\r\n  @media (max-width: 1366px) {\r\n    .sccr-article-header {\r\n      padding-top: 38px;\r\n    }\r\n\r\n    .sccr-section {\r\n      padding-top: 54px;\r\n      padding-bottom: 54px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 1280px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 40px), 940px);\r\n    }\r\n  }\r\n\r\n  @media (max-width: 1024px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 38px), 900px);\r\n    }\r\n\r\n    .sccr-key-points {\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    }\r\n\r\n    .sccr-project-details {\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    }\r\n  }\r\n\r\n  @media (max-width: 912px) {\r\n    .sccr-article-lead {\r\n      font-size: 19px;\r\n    }\r\n\r\n    .sccr-toc ol {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 820px) {\r\n    #leeyee-spd-sccr-article {\r\n      font-size: 16px;\r\n    }\r\n\r\n    #leeyee-spd-sccr-article h2 {\r\n      font-size: 29px;\r\n    }\r\n\r\n    .sccr-two-columns {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .sccr-steps {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 768px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 32px), 720px);\r\n    }\r\n\r\n    .sccr-section {\r\n      padding-top: 48px;\r\n      padding-bottom: 48px;\r\n    }\r\n\r\n    .sccr-key-points {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .sccr-checklist {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 600px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 26px), 560px);\r\n    }\r\n\r\n    .sccr-article-header {\r\n      padding-top: 30px;\r\n      padding-bottom: 20px;\r\n    }\r\n\r\n    .sccr-article-lead {\r\n      font-size: 17px;\r\n      line-height: 1.62;\r\n    }\r\n\r\n    .sccr-section {\r\n      padding-top: 42px;\r\n      padding-bottom: 42px;\r\n    }\r\n\r\n    #leeyee-spd-sccr-article h2 {\r\n      font-size: 27px;\r\n    }\r\n\r\n    #leeyee-spd-sccr-article h3 {\r\n      font-size: 20px;\r\n    }\r\n\r\n    .sccr-quick-answer,\r\n    .sccr-toc,\r\n    .sccr-evidence,\r\n    .sccr-light-cta {\r\n      padding: 21px;\r\n    }\r\n\r\n    .sccr-formula {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .sccr-formula-symbol {\r\n      min-height: 46px;\r\n    }\r\n\r\n    .sccr-formula-box {\r\n      min-height: 82px;\r\n    }\r\n\r\n    .sccr-project-details {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .sccr-table-wrap {\r\n      border: 0;\r\n      border-radius: 0;\r\n      overflow: visible;\r\n      background: transparent;\r\n      box-shadow: none;\r\n    }\r\n\r\n    .sccr-table,\r\n    .sccr-table tbody,\r\n    .sccr-table tr,\r\n    .sccr-table td {\r\n      display: block;\r\n      width: 100%;\r\n    }\r\n\r\n    .sccr-table thead {\r\n      position: absolute;\r\n      width: 1px;\r\n      height: 1px;\r\n      margin: -1px;\r\n      padding: 0;\r\n      overflow: hidden;\r\n      clip: rect(0 0 0 0);\r\n      white-space: nowrap;\r\n      border: 0;\r\n    }\r\n\r\n    .sccr-table {\r\n      min-width: 0;\r\n      table-layout: auto;\r\n    }\r\n\r\n    .sccr-table tr {\r\n      margin-bottom: 13px;\r\n      border: 1px solid var(--sccr-border);\r\n      border-radius: 11px;\r\n      overflow: hidden;\r\n      background: var(--sccr-white);\r\n      box-shadow: var(--sccr-shadow);\r\n    }\r\n\r\n    .sccr-table td,\r\n    .sccr-table tbody tr:nth-child(even) td,\r\n    .sccr-table tbody tr:hover td {\r\n      position: relative;\r\n      min-height: 43px;\r\n      padding: 11px 12px 11px 44%;\r\n      border: 0;\r\n      border-bottom: 1px solid var(--sccr-border);\r\n      background: var(--sccr-white);\r\n      text-align: left;\r\n    }\r\n\r\n    .sccr-table td:last-child {\r\n      border-bottom: 0;\r\n    }\r\n\r\n    .sccr-table td::before {\r\n      position: absolute;\r\n      top: 11px;\r\n      left: 12px;\r\n      width: 38%;\r\n      color: var(--sccr-blue);\r\n      font-size: 11px;\r\n      font-weight: 800;\r\n      line-height: 1.35;\r\n      text-transform: uppercase;\r\n      content: attr(data-label);\r\n    }\r\n\r\n    .sccr-button {\r\n      width: 100%;\r\n    }\r\n\r\n    .sccr-figure {\r\n      padding: 7px;\r\n    }\r\n\r\n    .sccr-figure figcaption {\r\n      font-size: 12px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 540px) {\r\n    .sccr-alert {\r\n      grid-template-columns: 37px minmax(0, 1fr);\r\n      gap: 12px;\r\n      padding: 18px;\r\n    }\r\n\r\n    .sccr-alert-icon {\r\n      width: 35px;\r\n      height: 35px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 480px) {\r\n    .sccr-article-shell {\r\n      width: min(calc(100% - 22px), 450px);\r\n    }\r\n\r\n    #leeyee-spd-sccr-article h2 {\r\n      font-size: 25px;\r\n    }\r\n\r\n    .sccr-quick-answer h2 {\r\n      font-size: 23px !important;\r\n    }\r\n\r\n    .sccr-quick-answer p {\r\n      font-size: 16px;\r\n    }\r\n\r\n    .sccr-key-point,\r\n    .sccr-plain-box,\r\n    .sccr-step {\r\n      padding: 18px;\r\n    }\r\n\r\n    .sccr-step {\r\n      grid-template-columns: 37px minmax(0, 1fr);\r\n    }\r\n\r\n    .sccr-step-number {\r\n      width: 35px;\r\n      height: 35px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 430px) {\r\n    .sccr-article-meta {\r\n      display: grid;\r\n      gap: 5px;\r\n    }\r\n\r\n    .sccr-toc {\r\n      padding: 19px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 414px) {\r\n    .sccr-section {\r\n      padding-top: 39px;\r\n      padding-bottom: 39px;\r\n    }\r\n\r\n    .sccr-equation {\r\n      font-size: 15px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 390px) {\r\n    .sccr-alert {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .sccr-table td {\r\n      padding-left: 42%;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 375px) {\r\n    #leeyee-spd-sccr-article {\r\n      font-size: 15px;\r\n    }\r\n\r\n    #leeyee-spd-sccr-article h2 {\r\n      font-size: 24px;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 360px) {\r\n    .sccr-article-shell {\r\n      width: calc(100% - 18px);\r\n    }\r\n\r\n    .sccr-table td {\r\n      padding-top: 34px;\r\n      padding-left: 12px;\r\n    }\r\n\r\n    .sccr-table td::before {\r\n      top: 9px;\r\n      width: calc(100% - 24px);\r\n    }\r\n  }\r\n\r\n  @media (max-width: 320px) {\r\n    #leeyee-spd-sccr-article h2 {\r\n      font-size: 22px;\r\n    }\r\n\r\n    .sccr-step {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (prefers-reduced-motion: reduce) {\r\n    #leeyee-spd-sccr-article *,\r\n    #leeyee-spd-sccr-article *::before,\r\n    #leeyee-spd-sccr-article *::after {\r\n      scroll-behavior: auto !important;\r\n      transition-duration: 0.01ms !important;\r\n      animation-duration: 0.01ms !important;\r\n      animation-iteration-count: 1 !important;\r\n    }\r\n  }\r\n<\/style>\r\n\r\n<div id=\"leeyee-spd-sccr-article\">\r\n  <article itemscope itemtype=\"https:\/\/schema.org\/TechArticle\">\r\n    <meta itemprop=\"headline\" content=\"SPD SCCR Rating Guide for Panel Builders and OEM Buyers\">\r\n    <meta itemprop=\"description\" content=\"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.\">\r\n    <meta itemprop=\"dateModified\" content=\"2026-07-23\">\r\n    <meta itemprop=\"mainEntityOfPage\" content=\"https:\/\/www.cnspd.com\/spd-sccr-rating\/\">\r\n\r\n    <header class=\"sccr-article-header\">\r\n      <div class=\"sccr-article-shell\">\r\n        <div class=\"sccr-article-category\">Panel Builder and OEM Engineering Guide<\/div>\r\n\r\n        <p class=\"sccr-article-lead\">\r\n          An SPD can have a high surge-current rating and still be unsuitable for the available short-circuit current inside a distribution board or industrial control panel. This guide explains how panel builders and OEM buyers should verify SCCR, Isccr, upstream protection and the complete panel rating before approving a model.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-article-meta\">\r\n          <span><strong>Updated:<\/strong> July 23, 2026<\/span>\r\n          <span><strong>For:<\/strong> Panel builders, OEM buyers, engineers and project procurement<\/span>\r\n          <span><strong>Reading time:<\/strong> Approximately 14 minutes<\/span>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-quick-answer\" id=\"quick-answer\">\r\n          <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#quick-answer\" >Quick Answer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#contents\" >Contents<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#what-do-sccr-and-isccr-mean-on-an-spd\" >What Do SCCR and Isccr Mean on an SPD?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#sccr-isccr-imax-in-and-iimp-are-not-interchangeable\" >SCCR, Isccr, Imax, In and Iimp Are Not Interchangeable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#sccr-vs-aic-or-air\" >SCCR vs AIC or AIR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#use-the-available-fault-current-at-the-actual-spd-location\" >Use the Available Fault Current at the Actual SPD Location<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#why-the-backup-fuse-or-circuit-breaker-matters\" >Why the Backup Fuse or Circuit Breaker Matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#a-high-sccr-spd-does-not-give-the-complete-panel-the-same-sccr\" >A High-SCCR SPD Does Not Give the Complete Panel the Same SCCR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#illustrative-project-selection-example\" >Illustrative Project Selection Example<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#how-to-verify-the-datasheet-certificate-and-installation-conditions\" >How to Verify the Datasheet, Certificate and Installation Conditions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#how-leeyee-documents-sccr-and-isccr\" >How LEEYEE Documents SCCR and Isccr<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#spd-sccr-and-isccr-rfq-checklist\" >SPD SCCR and Isccr RFQ Checklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#frequently-asked-questions\" >Frequently Asked Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#related-spd-selection-guides\" >Related SPD Selection Guides<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/#references\" >References<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"quick-answer\"><\/span>Quick Answer<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n          <p>\r\n            The available fault current at the SPD installation point must not exceed the SPD\u2019s declared SCCR or Isccr.\r\n          <\/p>\r\n\r\n          <p>\r\n            This comparison is valid only when the SPD is used at the declared voltage and with the fuse, circuit breaker, wiring arrangement and other conditions stated in its technical documentation.\r\n          <\/p>\r\n\r\n          <div class=\"sccr-formula\" aria-label=\"Basic SPD SCCR selection formula\">\r\n            <div class=\"sccr-formula-box\">\r\n              <span>Electrical system<\/span>\r\n              <strong>Available fault current at the SPD location<\/strong>\r\n            <\/div>\r\n\r\n            <div class=\"sccr-formula-symbol\" aria-hidden=\"true\">\u2264<\/div>\r\n\r\n            <div class=\"sccr-formula-box\">\r\n              <span>SPD documentation<\/span>\r\n              <strong>Declared SCCR or Isccr<\/strong>\r\n            <\/div>\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <nav class=\"sccr-toc\" aria-label=\"Article contents\">\r\n          <h2><span class=\"ez-toc-section\" id=\"contents\"><\/span>Contents<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n          <ol>\r\n            <li><a href=\"#what-is-sccr\">What SCCR and Isccr mean<\/a><\/li>\r\n            <li><a href=\"#rating-comparison\">SCCR, Isccr, Imax, In and Iimp<\/a><\/li>\r\n            <li><a href=\"#sccr-vs-aic\">SCCR vs AIC or AIR<\/a><\/li>\r\n            <li><a href=\"#fault-current\">Available fault current at the SPD location<\/a><\/li>\r\n            <li><a href=\"#backup-protection\">Backup fuse and circuit-breaker conditions<\/a><\/li>\r\n            <li><a href=\"#panel-sccr\">Why SPD SCCR is not panel SCCR<\/a><\/li>\r\n            <li><a href=\"#project-example\">Project selection example<\/a><\/li>\r\n            <li><a href=\"#verification\">Datasheet and certificate verification<\/a><\/li>\r\n            <li><a href=\"#leeyee-evidence\">LEEYEE technical evidence<\/a><\/li>\r\n            <li><a href=\"#rfq-checklist\">OEM and panel-builder RFQ checklist<\/a><\/li>\r\n            <li><a href=\"#faq\">Frequently asked questions<\/a><\/li>\r\n            <li><a href=\"#references\">References<\/a><\/li>\r\n          <\/ol>\r\n        <\/nav>\r\n      <\/div>\r\n    <\/header>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"what-is-sccr\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"what-do-sccr-and-isccr-mean-on-an-spd\"><\/span>What Do SCCR and Isccr Mean on an SPD?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          The short-circuit current rating, or <strong>SCCR<\/strong>, states the maximum declared RMS symmetrical fault current at which an AC surge protective device is suitable for use at its declared voltage and under its evaluated conditions.\r\n          <a class=\"sccr-source\" href=\"#ref-1\" aria-label=\"Reference 1\">[1]<\/a>\r\n        <\/p>\r\n\r\n        <p>\r\n          IEC-oriented documentation may use <strong>Isccr<\/strong>. It represents the maximum prospective network short-circuit current for which the SPD is rated together with its stated upstream overcurrent protective device.\r\n          <a class=\"sccr-source\" href=\"#ref-2\" aria-label=\"Reference 2\">[2]<\/a>\r\n        <\/p>\r\n\r\n        <p>\r\n          Both values address short-circuit safety. They do not describe how much lightning surge current the SPD can discharge.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-key-points\">\r\n          <article class=\"sccr-key-point\">\r\n            <h3>Project-side value<\/h3>\r\n            <p>\r\n              The available fault current comes from the electrical installation and must be determined at the actual SPD connection point.\r\n            <\/p>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-key-point\">\r\n            <h3>Product-side value<\/h3>\r\n            <p>\r\n              SCCR or Isccr comes from the SPD marking, datasheet, installation instructions, certificate or applicable test documentation.\r\n            <\/p>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-key-point\">\r\n            <h3>Approval condition<\/h3>\r\n            <p>\r\n              The product value is meaningful only when the documented voltage, protective device and installation conditions are followed.\r\n            <\/p>\r\n          <\/article>\r\n        <\/div>\r\n\r\n        <figure class=\"sccr-figure\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-short-circuit-protection-architecture.webp\"\r\n            alt=\"SPD SCCR and prospective short-circuit current protection architecture for electrical panels\"\r\n            width=\"1448\"\r\n            height=\"1086\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n\r\n          <figcaption>\r\n            The SPD is normally connected in parallel. Its short-circuit suitability must be checked at that branch connection and with the protective arrangement stated by the manufacturer.\r\n            <br>\r\n            <a class=\"sccr-full-image-link\" ref=\"magnificPopup\" href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-short-circuit-protection-architecture.webp\" target=\"_blank\" rel=\"noopener noreferrer\">Open the full-size diagram<\/a>\r\n          <\/figcaption>\r\n        <\/figure>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft sccr-anchor\" id=\"rating-comparison\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"sccr-isccr-imax-in-and-iimp-are-not-interchangeable\"><\/span>SCCR, Isccr, Imax, In and Iimp Are Not Interchangeable<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p class=\"sccr-section-intro\">\r\n          Several SPD parameters use kA. They describe different electrical events and answer different project questions.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-table-wrap\">\r\n          <table class=\"sccr-table\">\r\n            <thead>\r\n              <tr>\r\n                <th scope=\"col\" style=\"width:15%;\">Parameter<\/th>\r\n                <th scope=\"col\" style=\"width:34%;\">What It Represents<\/th>\r\n                <th scope=\"col\" style=\"width:31%;\">Project Question<\/th>\r\n                <th scope=\"col\" style=\"width:20%;\">Do Not Confuse It With<\/th>\r\n              <\/tr>\r\n            <\/thead>\r\n\r\n            <tbody>\r\n              <tr>\r\n                <td data-label=\"Parameter\">SCCR<\/td>\r\n                <td data-label=\"What It Represents\">Short-circuit suitability at a declared AC voltage and under evaluated conditions.<\/td>\r\n                <td data-label=\"Project Question\">Can the SPD be installed where this available fault-current level exists?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">Imax, In or breaker interrupting rating.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">Isccr<\/td>\r\n                <td data-label=\"What It Represents\">Maximum prospective short-circuit current for which the SPD is rated with the stated upstream OCPD.<\/td>\r\n                <td data-label=\"Project Question\">Is the SPD suitable with the documented fuse or circuit breaker?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">An unconditional stand-alone value.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">In<\/td>\r\n                <td data-label=\"What It Represents\">Nominal discharge current, normally tested with an 8\/20 \u03bcs waveform.<\/td>\r\n                <td data-label=\"Project Question\">What nominal surge-current test duty has the SPD passed?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">Power-frequency fault current.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">Imax<\/td>\r\n                <td data-label=\"What It Represents\">Maximum discharge current, normally stated with an 8\/20 \u03bcs waveform.<\/td>\r\n                <td data-label=\"Project Question\">What maximum Type 2 surge current is declared?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">SCCR or Isccr.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">Iimp<\/td>\r\n                <td data-label=\"What It Represents\">Impulse discharge current, normally stated with a 10\/350 \u03bcs waveform.<\/td>\r\n                <td data-label=\"Project Question\">What Type 1 lightning-current duty is declared?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">Available network fault current.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">Up<\/td>\r\n                <td data-label=\"What It Represents\">Voltage protection level established under specified IEC test conditions.<\/td>\r\n                <td data-label=\"Project Question\">What voltage level may appear at the SPD terminals during the test event?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">A current rating.<\/td>\r\n              <\/tr>\r\n\r\n              <tr>\r\n                <td data-label=\"Parameter\">VPR<\/td>\r\n                <td data-label=\"What It Represents\">UL-oriented voltage protection rating.<\/td>\r\n                <td data-label=\"Project Question\">What limiting-voltage category appears in the applicable UL record?<\/td>\r\n                <td data-label=\"Do Not Confuse It With\">IEC Up as an automatically identical value.<\/td>\r\n              <\/tr>\r\n            <\/tbody>\r\n          <\/table>\r\n        <\/div>\r\n\r\n        <figure class=\"sccr-figure\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-isccr-surge-rating-comparison.webp\"\r\n            alt=\"Comparison of SPD SCCR, Isccr, In, Imax, Iimp and Up electrical ratings\"\r\n            width=\"1448\"\r\n            height=\"1086\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n\r\n          <figcaption>\r\n            SCCR and Isccr address fault-current safety. In, Imax and Iimp address surge-current performance. Up addresses voltage limitation.\r\n            <br>\r\n            <a class=\"sccr-full-image-link\" ref=\"magnificPopup\" href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-isccr-surge-rating-comparison.webp\" target=\"_blank\" rel=\"noopener noreferrer\">Open the full-size diagram<\/a>\r\n          <\/figcaption>\r\n        <\/figure>\r\n\r\n        <div class=\"sccr-alert sccr-alert--warning\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">!<\/div>\r\n          <div>\r\n            <h3>Two common procurement mistakes<\/h3>\r\n            <p>\r\n              A 40 kA Imax SPD does not automatically have a 40 kA SCCR. A 100 kA SCCR does not mean that the SPD can discharge a 100 kA lightning surge.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"sccr-vs-aic\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"sccr-vs-aic-or-air\"><\/span>SCCR vs AIC or AIR<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          SCCR and breaker interrupting capacity solve different safety questions. NEMA specifically distinguishes the SPD short-circuit current rating from the ampere interrupting capacity of an overcurrent protective device.\r\n          <a class=\"sccr-source\" href=\"#ref-3\" aria-label=\"Reference 3\">[3]<\/a>\r\n        <\/p>\r\n\r\n        <div class=\"sccr-two-columns\">\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>SPD SCCR<\/h3>\r\n            <p>\r\n              States the fault-current level at which the SPD is suitable for use under its evaluated conditions.\r\n            <\/p>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>Fuse or Breaker AIC \/ AIR<\/h3>\r\n            <p>\r\n              States the maximum fault current the protective device can safely interrupt at its rated voltage.\r\n            <\/p>\r\n          <\/article>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-alert sccr-alert--danger\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">\u00d7<\/div>\r\n          <div>\r\n            <h3>Both ratings must be adequate<\/h3>\r\n            <p>\r\n              A high-AIC breaker does not automatically increase an SPD\u2019s SCCR. A high-SCCR SPD does not increase the breaker\u2019s interrupting capacity.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft sccr-anchor\" id=\"fault-current\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"use-the-available-fault-current-at-the-actual-spd-location\"><\/span>Use the Available Fault Current at the Actual SPD Location<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          Available fault current can change between the transformer, main switchboard, feeder and downstream control panel.\r\n        <\/p>\r\n\r\n        <p>\r\n          Transformer impedance, source strength, cable length, conductor size, busbar impedance and upstream current-limiting devices can all affect the value.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-two-columns\">\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>Quick transformer-secondary estimate<\/h3>\r\n\r\n            <p>\r\n              For a three-phase transformer, first estimate the secondary full-load current:\r\n            <\/p>\r\n\r\n            <div class=\"sccr-equation\">\r\n              I<sub>FL<\/sub> = (kVA \u00d7 1000) \u00f7 (\u221a3 \u00d7 V<sub>LL<\/sub>)\r\n            <\/div>\r\n\r\n            <p>\r\n              Then estimate the symmetrical bolted-fault current at the transformer secondary terminals:\r\n            <\/p>\r\n\r\n            <div class=\"sccr-equation\">\r\n              I<sub>SC<\/sub> \u2248 I<sub>FL<\/sub> \u00f7 (Z% \u00f7 100)\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>Illustrative example<\/h3>\r\n\r\n            <p>\r\n              A 500 kVA, 400 V three-phase transformer with 6% impedance has a full-load current of approximately 722 A.\r\n            <\/p>\r\n\r\n            <p>\r\n              Dividing 722 A by 0.06 gives an estimated transformer-terminal fault current of approximately 12.0 kA.\r\n              <a class=\"sccr-source\" href=\"#ref-4\" aria-label=\"Reference 4\">[4]<\/a>\r\n            <\/p>\r\n\r\n            <p>\r\n              This is only a screening estimate. It does not replace a formal short-circuit study and may not represent the value at a downstream SPD.\r\n            <\/p>\r\n          <\/article>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-alert sccr-alert--warning\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">!<\/div>\r\n          <div>\r\n            <h3>Do not use the breaker rating as the project fault current<\/h3>\r\n            <p>\r\n              A breaker marked 50 kA may be capable of interrupting that level. It does not prove that the installation actually has 50 kA available fault current.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"backup-protection\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"why-the-backup-fuse-or-circuit-breaker-matters\"><\/span>Why the Backup Fuse or Circuit Breaker Matters<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          An Isccr value may depend on a specific upstream fuse or circuit breaker. The number should not be separated from the test and installation conditions under which it was established.\r\n          <a class=\"sccr-source\" href=\"#ref-2\" aria-label=\"Reference 2\">[2]<\/a>\r\n        <\/p>\r\n\r\n        <p>\r\n          If an SPD develops a low-impedance failure path, power-frequency current can flow through it. The coordinated internal and external protective arrangement must disconnect the failed SPD safely.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-two-columns\">\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>Ask the complete question<\/h3>\r\n            <p>\r\n              \u201cUnder which fuse, breaker, voltage and wiring conditions was this SCCR or Isccr established?\u201d\r\n            <\/p>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-plain-box\">\r\n            <h3>Verify these OCPD details<\/h3>\r\n            <ul>\r\n              <li>Fuse or breaker type<\/li>\r\n              <li>Maximum permitted current rating<\/li>\r\n              <li>Fuse class or breaker characteristics<\/li>\r\n              <li>Interrupting capacity<\/li>\r\n              <li>Branch or through-wiring arrangement<\/li>\r\n            <\/ul>\r\n          <\/article>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-alert sccr-alert--info\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">i<\/div>\r\n          <div>\r\n            <h3>Equal ampere ratings do not prove equal protection<\/h3>\r\n            <p>\r\n              A 125 A fuse and a 125 A molded-case circuit breaker can have different clearing times, let-through energy and current-limiting performance.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft sccr-anchor\" id=\"panel-sccr\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"a-high-sccr-spd-does-not-give-the-complete-panel-the-same-sccr\"><\/span>A High-SCCR SPD Does Not Give the Complete Panel the Same SCCR<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          The SPD rating applies to the SPD under its evaluated conditions. The panel rating applies to the complete industrial control panel or electrical assembly.\r\n        <\/p>\r\n\r\n        <p>\r\n          UL identifies Supplement SB of UL 508A as an accepted method for determining industrial control panel SCCR.\r\n          <a class=\"sccr-source\" href=\"#ref-5\" aria-label=\"Reference 5\">[5]<\/a>\r\n        <\/p>\r\n\r\n        <p>\r\n          The assessment may include disconnect switches, fuses, circuit breakers, contactors, overload relays, motor starters, distribution blocks, terminals, busbars, drives and SPDs.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-alert sccr-alert--danger\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">\u00d7<\/div>\r\n          <div>\r\n            <h3>Do not copy the SPD value onto the panel nameplate<\/h3>\r\n            <p>\r\n              A 100 kA or 200 kA SCCR SPD does not automatically make the complete panel suitable for 100 kA or 200 kA available fault current.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"project-example\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"illustrative-project-selection-example\"><\/span>Illustrative Project Selection Example<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          The example below shows why Imax cannot be used as a substitute for Isccr.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-project-details\">\r\n          <div class=\"sccr-project-detail\">\r\n            <span>System<\/span>\r\n            <strong>400\/230 V AC<\/strong>\r\n          <\/div>\r\n\r\n          <div class=\"sccr-project-detail\">\r\n            <span>Earthing Arrangement<\/span>\r\n            <strong>TN-S<\/strong>\r\n          <\/div>\r\n\r\n          <div class=\"sccr-project-detail\">\r\n            <span>SPD Location<\/span>\r\n            <strong>Main Distribution Board<\/strong>\r\n          <\/div>\r\n\r\n          <div class=\"sccr-project-detail\">\r\n            <span>Available Fault Current<\/span>\r\n            <strong>36 kA RMS<\/strong>\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-two-columns\">\r\n          <article class=\"sccr-plain-box sccr-option\">\r\n            <span class=\"sccr-status\">Not Suitable<\/span>\r\n\r\n            <h3>Illustrative Option A<\/h3>\r\n\r\n            <ul class=\"sccr-spec-list\">\r\n              <li><span>Uc<\/span><strong>275 V AC<\/strong><\/li>\r\n              <li><span>In<\/span><strong>20 kA<\/strong><\/li>\r\n              <li><span>Imax<\/span><strong>40 kA<\/strong><\/li>\r\n              <li><span>Isccr<\/span><strong>25 kA<\/strong><\/li>\r\n              <li><span>Backup Fuse<\/span><strong>125 A gG maximum<\/strong><\/li>\r\n            <\/ul>\r\n\r\n            <p>\r\n              The 25 kA Isccr is lower than the 36 kA available fault current. The 40 kA Imax value does not correct this problem.\r\n            <\/p>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-plain-box sccr-option sccr-option--pass\">\r\n            <span class=\"sccr-status\">Potentially Suitable<\/span>\r\n\r\n            <h3>Illustrative Option B<\/h3>\r\n\r\n            <ul class=\"sccr-spec-list\">\r\n              <li><span>Uc<\/span><strong>275 V AC<\/strong><\/li>\r\n              <li><span>In<\/span><strong>20 kA<\/strong><\/li>\r\n              <li><span>Imax<\/span><strong>40 kA<\/strong><\/li>\r\n              <li><span>Isccr<\/span><strong>50 kA<\/strong><\/li>\r\n              <li><span>Backup Fuse<\/span><strong>125 A gG maximum<\/strong><\/li>\r\n            <\/ul>\r\n\r\n            <p>\r\n              The 50 kA Isccr exceeds the 36 kA project value. Final approval still depends on the exact fuse, voltage, circuit, certificate scope and panel review.\r\n            <\/p>\r\n          <\/article>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft sccr-anchor\" id=\"verification\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"how-to-verify-the-datasheet-certificate-and-installation-conditions\"><\/span>How to Verify the Datasheet, Certificate and Installation Conditions<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p class=\"sccr-section-intro\">\r\n          Use the exact model and configuration. Do not approve an SPD from one isolated number or from a certificate for a similar-looking model.\r\n        <\/p>\r\n\r\n        <figure class=\"sccr-figure\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-oem-verification-workflow.webp\"\r\n            alt=\"OEM workflow for verifying SPD SCCR, backup protection, certificates and panel requirements\"\r\n            width=\"1448\"\r\n            height=\"1086\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n\r\n          <figcaption>\r\n            A practical SCCR and Isccr verification workflow for panel builders, OEM buyers, engineers and project procurement teams.\r\n            <br>\r\n            <a class=\"sccr-full-image-link\" ref=\"magnificPopup\" href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-oem-verification-workflow.webp\" target=\"_blank\" rel=\"noopener noreferrer\">Open the full-size diagram<\/a>\r\n          <\/figcaption>\r\n        <\/figure>\r\n\r\n        <div class=\"sccr-steps\">\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">01<\/div>\r\n            <div>\r\n              <h3>Define the project market<\/h3>\r\n              <p>Confirm the destination country, applicable standard, required certificate and approval route.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">02<\/div>\r\n            <div>\r\n              <h3>Confirm the electrical system<\/h3>\r\n              <p>Record the voltage, frequency, earthing arrangement and actual SPD installation point.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">03<\/div>\r\n            <div>\r\n              <h3>Obtain the fault-current value<\/h3>\r\n              <p>Use the project short-circuit study or a calculation completed by a qualified responsible party.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">04<\/div>\r\n            <div>\r\n              <h3>Identify the exact SPD model<\/h3>\r\n              <p>Confirm the full code, voltage suffix, pole arrangement, base and replaceable module.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">05<\/div>\r\n            <div>\r\n              <h3>Locate SCCR or Isccr<\/h3>\r\n              <p>Determine whether the value applies to one module, one protection mode or the complete assembly.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">06<\/div>\r\n            <div>\r\n              <h3>Verify the upstream OCPD<\/h3>\r\n              <p>Check the fuse or breaker type, rating, interrupting capacity and substitution restrictions.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">07<\/div>\r\n            <div>\r\n              <h3>Match the technical evidence<\/h3>\r\n              <p>Compare the label, datasheet, installation instructions, certificate and test documentation.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n\r\n          <article class=\"sccr-step\">\r\n            <div class=\"sccr-step-number\">08<\/div>\r\n            <div>\r\n              <h3>Review the complete panel<\/h3>\r\n              <p>Record the decision in the BOM, technical file, project submittal or sample approval record.<\/p>\r\n            <\/div>\r\n          <\/article>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"leeyee-evidence\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"how-leeyee-documents-sccr-and-isccr\"><\/span>How LEEYEE Documents SCCR and Isccr<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          LEEYEE product and certification documents show that SCCR or Isccr must be matched to the exact series, voltage and model configuration.\r\n        <\/p>\r\n\r\n        <div class=\"sccr-evidence\">\r\n          <h3>Published first-party examples<\/h3>\r\n\r\n          <ul class=\"sccr-evidence-list\">\r\n            <li>\r\n              The LEEYEE certificate index lists <strong>LY1-C40M<\/strong> Type 2 models with an Isccr of 25 kA for the covered configurations.\r\n            <\/li>\r\n\r\n            <li>\r\n              The certificate index also lists <strong>LY1-C40 and LY1-D20<\/strong> series models with an Isccr of 25 kA within their stated certification scope.\r\n            <\/li>\r\n\r\n            <li>\r\n              The <strong>LY1-12.5\/3(S)<\/strong> product specification table publishes model-dependent SCCR values. The exact value varies by voltage and product variant.\r\n            <\/li>\r\n\r\n            <li>\r\n              The LEEYEE SPD catalogue lists backup-fuse data separately from short-circuit current ratings. Buyers should therefore request and verify both values.\r\n            <\/li>\r\n          <\/ul>\r\n        <\/div>\r\n\r\n        <div class=\"sccr-alert sccr-alert--warning\">\r\n          <div class=\"sccr-alert-icon\" aria-hidden=\"true\">!<\/div>\r\n          <div>\r\n            <h3>Evidence does not transfer automatically between models<\/h3>\r\n            <p>\r\n              A certificate for one series or an SCCR shown for one voltage variant cannot be used as blanket evidence for every LEEYEE SPD.\r\n            <\/p>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft sccr-anchor\" id=\"rfq-checklist\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"spd-sccr-and-isccr-rfq-checklist\"><\/span>SPD SCCR and Isccr RFQ Checklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p class=\"sccr-section-intro\">\r\n          Complete project data helps the supplier identify technical conflicts before quotation, sampling or OEM approval.\r\n        <\/p>\r\n\r\n        <ul class=\"sccr-checklist\">\r\n          <li>Destination country<\/li>\r\n          <li>Required standard<\/li>\r\n          <li>Required certificate<\/li>\r\n          <li>Panel application<\/li>\r\n          <li>Nominal system voltage<\/li>\r\n          <li>Line-to-line voltage<\/li>\r\n          <li>Line-to-neutral voltage<\/li>\r\n          <li>AC frequency<\/li>\r\n          <li>Earthing arrangement<\/li>\r\n          <li>SPD installation point<\/li>\r\n          <li>Available fault current<\/li>\r\n          <li>Required panel SCCR<\/li>\r\n          <li>Upstream fuse type<\/li>\r\n          <li>Fuse rating<\/li>\r\n          <li>Circuit-breaker type<\/li>\r\n          <li>Breaker rating<\/li>\r\n          <li>Interrupting capacity<\/li>\r\n          <li>Required SPD Type<\/li>\r\n          <li>Pole configuration<\/li>\r\n          <li>Required In or Imax<\/li>\r\n          <li>Required Iimp<\/li>\r\n          <li>Required Up or VPR<\/li>\r\n          <li>Required SCCR or Isccr<\/li>\r\n          <li>Remote-contact requirement<\/li>\r\n          <li>Order quantity<\/li>\r\n          <li>OEM label and packaging<\/li>\r\n        <\/ul>\r\n\r\n        <div class=\"sccr-light-cta\">\r\n          <h3>Need to Verify an SPD for a Panel or OEM Project?<\/h3>\r\n\r\n          <p>\r\n            Send the system voltage, earthing arrangement, available fault current, upstream fuse or breaker, required SPD Type and certification requirement.\r\n          <\/p>\r\n\r\n          <p>\r\n            LEEYEE can help compare the requested parameters with the available product documentation. Final fault-current calculations, panel SCCR determination and project approval remain with the responsible engineer, panel builder or approval authority.\r\n          <\/p>\r\n\r\n          <div class=\"sccr-light-cta-actions\">\r\n            <a class=\"sccr-button leeyee-site-popup-btn\" href=\"javascript:void(0);\" role=\"button\">\r\n              <span style=\"color:#ffffff !important;\">Send Your Project Requirements<\/span>\r\n            <\/a>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-anchor\" id=\"faq\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"frequently-asked-questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"sccr-faq\">\r\n          <details>\r\n            <summary>Is a 40 kA Imax SPD suitable where the available fault current is 40 kA?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                Not necessarily. Imax describes surge-current performance. The separately declared SCCR or Isccr must be checked against the available fault current.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>Should SCCR or Isccr be higher than the available fault current?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                It must be equal to or greater than the available fault current at the SPD installation point, subject to all stated voltage, OCPD and installation conditions.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>Is SCCR the same as breaker AIC or AIR?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                No. SCCR describes component or assembly suitability under short-circuit conditions. AIC or AIR describes the fault current an overcurrent protective device can safely interrupt.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>Can an upstream breaker increase the SPD SCCR?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                Only when the resulting combination and rating are supported by the applicable test, certification, listing or manufacturer documentation.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>Does an internal thermal disconnector eliminate the backup fuse?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                Not automatically. Follow the exact installation instructions and protective-device conditions for the selected SPD model.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>Does a 200 kA SCCR SPD make the panel 200 kA SCCR?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                No. The complete panel SCCR must be determined separately under the applicable panel or machinery procedure.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n\r\n          <details>\r\n            <summary>What should the buyer do if the backup-protection condition is missing?<\/summary>\r\n            <div class=\"sccr-faq-answer\">\r\n              <p>\r\n                Do not approve the SPD solely from an isolated SCCR or Isccr claim. Request the exact datasheet, installation instructions and applicable certification or test evidence.\r\n              <\/p>\r\n            <\/div>\r\n          <\/details>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"sccr-section sccr-section--soft\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"related-spd-selection-guides\"><\/span>Related SPD Selection Guides<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <ul class=\"sccr-related-list\">\r\n          <li>\r\n            <a href=\"https:\/\/www.cnspd.com\/spd-uc-selection-guide\/\">SPD Uc Selection Guide<\/a>\r\n            <span>Compare continuous operating voltage options with the actual electrical system.<\/span>\r\n          <\/li>\r\n\r\n          <li>\r\n            <a href=\"https:\/\/www.cnspd.com\/spd-imax-selection\/\">SPD Imax Selection Guide<\/a>\r\n            <span>Understand maximum discharge current without confusing it with SCCR.<\/span>\r\n          <\/li>\r\n\r\n          <li>\r\n            <a href=\"https:\/\/www.cnspd.com\/spd-in-rating-selection\/\">SPD In Rating Selection<\/a>\r\n            <span>Review nominal 8\/20 \u03bcs discharge-current requirements.<\/span>\r\n          <\/li>\r\n\r\n          <li>\r\n            <a href=\"https:\/\/www.cnspd.com\/spd-certificate-verification\/\">SPD Certificate Verification<\/a>\r\n            <span>Check exact models, standards, ratings and certificate scope.<\/span>\r\n          <\/li>\r\n\r\n          <li>\r\n            <a href=\"https:\/\/www.cnspd.com\/spd-for-distribution-board\/\">SPD for Distribution Boards<\/a>\r\n            <span>Review SPD Type, pole arrangement, backup protection and installation position.<\/span>\r\n          <\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <footer class=\"sccr-references sccr-anchor\" id=\"references\">\r\n      <div class=\"sccr-article-shell\">\r\n        <h2><span class=\"ez-toc-section\" id=\"references\"><\/span>References<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n          Standards and certification requirements may change. Verify the edition, certificate validity and local requirements applicable to the project date and destination market.\r\n        <\/p>\r\n\r\n        <ol class=\"sccr-reference-list\">\r\n          <li id=\"ref-1\">\r\n            NEMA Surge Protection Institute, \u201cSafety-Related Information,\u201d including the definition and safety context of SPD SCCR.\r\n            <a href=\"https:\/\/www.nemasurge.org\/spd-safety\/\" target=\"_blank\" rel=\"noopener noreferrer\">View source<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-2\">\r\n            Phoenix Contact, \u201cFundamentals for Surge Protection,\u201d including the definition of Isccr and guidance on upstream overcurrent protection.\r\n            <a href=\"https:\/\/www.phoenixcontact.com\/assets\/c8428ddc-254d-40b8-a2f2-540ac13bd818\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\">View technical guide<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-3\">\r\n            NEMA Surge Protection Institute, \u201cFAQs,\u201d distinguishing SCCR from AIC.\r\n            <a href=\"https:\/\/www.nemasurge.org\/faqs\/\" target=\"_blank\" rel=\"noopener noreferrer\">View source<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-4\">\r\n            Schneider Electric, \u201cHow do you calculate the maximum possible available fault current at the secondary for single-phase and three-phase transformers?\u201d\r\n            <a href=\"https:\/\/www.se.com\/us\/en\/faqs\/FA105006\/\" target=\"_blank\" rel=\"noopener noreferrer\">View calculation guidance<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-5\">\r\n            UL Solutions, information on industrial control panel SCCR determination and UL 508A Supplement SB.\r\n            <a href=\"https:\/\/www.ul.com\/resources\/short-circuit-current-ratings-combination-motor-controller-components\" target=\"_blank\" rel=\"noopener noreferrer\">View UL source<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-6\">\r\n            International Electrotechnical Commission, IEC 61643-01:2024, \u201cLow-voltage surge protective devices \u2013 Part 01: General requirements and test methods.\u201d\r\n            <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65315\" target=\"_blank\" rel=\"noopener noreferrer\">View standard record<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-7\">\r\n            International Electrotechnical Commission, IEC 61643-11:2025, \u201cLow-voltage surge protective devices \u2013 Part 11: Surge protective devices connected to AC low-voltage power systems.\u201d\r\n            <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener noreferrer\">View standard record<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-8\">\r\n            UL Solutions, \u201cSurge Protection Device Testing and Certification Services.\u201d\r\n            <a href=\"https:\/\/www.ul.com\/services\/surge-protection-device-testing-and-certification-services\" target=\"_blank\" rel=\"noopener noreferrer\">View UL source<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-9\">\r\n            LEEYEE Electric SPD Catalogue, including separate backup-fuse and short-circuit current rating fields.\r\n            <a href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/07\/LEEYEE-ELECTRIC-CATALOGUE%EF%BC%88SPD.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">View catalogue<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-10\">\r\n            LEEYEE Certifications, listing standards, model families and declared Isccr values for covered AC SPD series.\r\n            <a href=\"https:\/\/www.cnspd.com\/patents-certificates\/\" target=\"_blank\" rel=\"noopener noreferrer\">View certificate index<\/a>\r\n          <\/li>\r\n\r\n          <li id=\"ref-11\">\r\n            LEEYEE LY1-12.5\/3(S) product page, including model-dependent SCCR values in its specification table.\r\n            <a href=\"https:\/\/www.cnspd.com\/ly1-12-53spluggable-multi-pole-spd-product\/\" target=\"_blank\" rel=\"noopener noreferrer\">View product data<\/a>\r\n          <\/li>\r\n        <\/ol>\r\n\r\n        <div class=\"sccr-brand-note\">\r\n          <p>\r\n            <strong>LEEYEE<\/strong> is a specialized surge protection and low-voltage protection supplier, trusted for solar PV, power distribution, telecom, industrial and OEM applications.\r\n          <\/p>\r\n\r\n          <p>\r\n            <strong>CNSPD<\/strong> is LEEYEE\u2019s surge protection-focused brand platform for global buyers.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <details class=\"sccr-revision\">\r\n          <summary>Revision notes<\/summary>\r\n          <div class=\"sccr-revision-body\">\r\n            <p>\r\n              This version removes the large Hero, duplicate page title, breadcrumbs, dark full-width feature blocks and repeated sales sections. It changes the page to a white-background article layout with a short introduction, Quick Answer, contents, natural image placement, mobile table cards and one lightweight inquiry CTA.\r\n            <\/p>\r\n          <\/div>\r\n        <\/details>\r\n      <\/div>\r\n    <\/footer>\r\n  <\/article>\r\n<\/div>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"TechArticle\",\r\n  \"headline\": \"SPD SCCR Rating Guide for Panel Builders and OEM Buyers\",\r\n  \"description\": \"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.\",\r\n  \"mainEntityOfPage\": {\r\n    \"@type\": \"WebPage\",\r\n    \"@id\": \"https:\/\/www.cnspd.com\/spd-sccr-rating\/\"\r\n  },\r\n  \"dateModified\": \"2026-07-23\",\r\n  \"author\": {\r\n    \"@type\": \"Organization\",\r\n    \"name\": \"LEEYEE\",\r\n    \"url\": \"https:\/\/www.cnspd.com\/\"\r\n  },\r\n  \"publisher\": {\r\n    \"@type\": \"Organization\",\r\n    \"name\": \"LEEYEE\",\r\n    \"url\": \"https:\/\/www.cnspd.com\/\"\r\n  },\r\n  \"image\": [\r\n    \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-short-circuit-protection-architecture.webp\",\r\n    \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-isccr-surge-rating-comparison.webp\",\r\n    \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-sccr-oem-verification-workflow.webp\"\r\n  ],\r\n  \"about\": [\r\n    \"SPD SCCR rating\",\r\n    \"SPD Isccr\",\r\n    \"Available fault current\",\r\n    \"SCCR versus AIC\",\r\n    \"SPD backup protection\",\r\n    \"Industrial control panel SCCR\"\r\n  ]\r\n}\r\n<\/script>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Is a 40 kA Imax SPD suitable where the available fault current is 40 kA?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Not necessarily. Imax describes surge-current performance. The separately declared SCCR or Isccr must be checked against the available fault current.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Should SCCR or Isccr be higher than the available fault current?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"It must be equal to or greater than the available fault current at the SPD installation point, subject to all stated voltage, OCPD and installation conditions.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Is SCCR the same as breaker AIC or AIR?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"No. SCCR describes component or assembly suitability under short-circuit conditions. AIC or AIR describes the fault current an overcurrent protective device can safely interrupt.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Can an upstream breaker increase the SPD SCCR?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Only when the resulting combination and rating are supported by the applicable test, certification, listing or manufacturer documentation.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Does a 200 kA SCCR SPD make the panel 200 kA SCCR?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"No. The complete panel SCCR must be determined separately under the applicable panel or machinery procedure.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\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>Guide d'ing\u00e9nierie destin\u00e9 aux fabricants de tableaux \u00e9lectriques et aux \u00e9quipementiers (OEM) : un SPD peut pr\u00e9senter une capacit\u00e9 nominale \u00e9lev\u00e9e en courant de surtension tout en \u00e9tant inadapt\u00e9 au courant de court-circuit disponible \u00e0 l'int\u00e9rieur d'un tableau de distribution ou d'un tableau de commande industriel. Ce guide explique comment les fabricants de tableaux \u00e9lectriques et les acheteurs OEM doivent v\u00e9rifier les valeurs SCCR et Isccr, la protection en amont ainsi que les caract\u00e9ristiques nominales compl\u00e8tes du tableau avant d'approuver un mod\u00e8le\u2026<\/p>","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-30370","post","type-post","status-publish","format-standard","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SPD SCCR &amp; Isccr Guide: Fault Current and Panel Rating | LEEYEE<\/title>\n<meta name=\"description\" content=\"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SPD SCCR &amp; Isccr Guide: Fault Current and Panel Rating | LEEYEE\" \/>\n<meta property=\"og:description\" content=\"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/\" \/>\n<meta property=\"og:site_name\" content=\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-23T04:57:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-23T08:08:23+00:00\" \/>\n<meta name=\"author\" content=\"Devin Ling\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devin Ling\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/\"},\"author\":{\"name\":\"Devin Ling\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"headline\":\"SPD SCCR Rating Guide for Panel Builders and OEM Buyers\",\"datePublished\":\"2026-07-23T04:57:29+00:00\",\"dateModified\":\"2026-07-23T08:08:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/\"},\"wordCount\":2296,\"articleSection\":[\"News\",\"Surge Protection\",\"Technical Guides\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/\",\"name\":\"SPD SCCR & Isccr Guide: Fault Current and Panel Rating | LEEYEE\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\"},\"datePublished\":\"2026-07-23T04:57:29+00:00\",\"dateModified\":\"2026-07-23T08:08:23+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"description\":\"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/spd-sccr-rating\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.cnspd.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"SPD SCCR Rating Guide for Panel Builders and OEM Buyers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/\",\"name\":\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\",\"description\":\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.cnspd.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\",\"name\":\"Devin Ling\",\"sameAs\":[\"https:\\\/\\\/cnspd.com\\\/\"],\"url\":\"https:\\\/\\\/www.cnspd.com\\\/fr\\\/author\\\/devin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Guide SCCR &amp; Isccr pour parafoudres : Courant de d\u00e9faut et calibre du tableau | LEEYEE","description":"Comparez le SCCR ou l'Isccr du parafoudre (SPD) au courant de d\u00e9faut disponible, v\u00e9rifiez la protection de secours et les certificats, et \u00e9vitez les erreurs de SCCR de tableau dans les projets OEM.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/","og_locale":"fr_FR","og_type":"article","og_title":"SPD SCCR & Isccr Guide: Fault Current and Panel Rating | LEEYEE","og_description":"Compare SPD SCCR or Isccr with available fault current, verify backup protection and certificates, and avoid panel SCCR errors in OEM projects.","og_url":"https:\/\/www.cnspd.com\/fr\/spd-sccr-rating\/","og_site_name":"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE","article_published_time":"2026-07-23T04:57:29+00:00","article_modified_time":"2026-07-23T08:08:23+00:00","author":"Devin Ling","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Devin Ling","Dur\u00e9e de lecture estim\u00e9e":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.cnspd.com\/spd-sccr-rating\/#article","isPartOf":{"@id":"https:\/\/www.cnspd.com\/spd-sccr-rating\/"},"author":{"name":"Devin Ling","@id":"https:\/\/www.cnspd.com\/#\/schema\/person\/f49dbafe62c5b47100ad2d9f88af92d3"},"headline":"SPD SCCR Rating Guide for Panel Builders and OEM Buyers","datePublished":"2026-07-23T04:57:29+00:00","dateModified":"2026-07-23T08:08:23+00:00","mainEntityOfPage":{"@id":"https:\/\/www.cnspd.com\/spd-sccr-rating\/"},"wordCount":2296,"articleSection":["News","Surge Protection","Technical Guides"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/www.cnspd.com\/spd-sccr-rating\/","url":"https:\/\/www.cnspd.com\/spd-sccr-rating\/","name":"Guide SCCR &amp; 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