{"id":29582,"date":"2026-06-24T13:44:43","date_gmt":"2026-06-24T05:44:43","guid":{"rendered":"https:\/\/www.cnspd.com\/?page_id=29582"},"modified":"2026-08-26T16:18:54","modified_gmt":"2026-08-26T08:18:54","slug":"spd-for-distribution-board","status":"publish","type":"page","link":"https:\/\/www.cnspd.com\/id\/spd-untuk-papan-distribusi\/","title":{"rendered":"SPD untuk Papan Distribusi"},"content":{"rendered":"<section class=\"l-section wpb_row height_large width_full\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_grid cols_1 laptops-cols_inherit tablets-cols_inherit mobiles-cols_1 valign_top type_default stacking_default\"><div class=\"wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"w-html us_custom_8b3cf7b3\"><style>\n  .dbspd-page {\n    --blue: #004898;\n    --blue2: #0b63c7;\n    --dark: #102033;\n    --text: #4d5b6b;\n    --muted: #6c7a89;\n    --soft: #f4f8fc;\n    --soft2: #eef6ff;\n    --line: #dbe8f5;\n    --green: #18a058;\n    --orange: #f59f00;\n    --red: #d64545;\n    font-family: inherit;\n    color: var(--dark);\n    background: #fff;\n  }\n\n  .dbspd-page * {\n    box-sizing: border-box;\n  }\n\n  .dbspd-container {\n    width: min(1180px, calc(100% - 36px));\n    margin: 0 auto;\n  }\n\n  .dbspd-hero {\n    padding: 82px 0 64px;\n    background:\n      radial-gradient(circle at 82% 18%, rgba(0,72,152,.13), transparent 32%),\n      radial-gradient(circle at 8% 90%, rgba(24,160,88,.10), transparent 28%),\n      linear-gradient(135deg, #f7fbff 0%, #ffffff 56%, #eef6ff 100%);\n    overflow: hidden;\n  }\n\n  .dbspd-hero-grid {\n    display: grid;\n    grid-template-columns: 1.03fr .97fr;\n    gap: 46px;\n    align-items: center;\n  }\n\n  .dbspd-eyebrow {\n    display: inline-flex;\n    align-items: center;\n    gap: 9px;\n    padding: 8px 13px;\n    border-radius: 999px;\n    background: rgba(255,255,255,.86);\n    border: 1px solid rgba(0,72,152,.18);\n    color: var(--blue);\n    font-size: 14px;\n    font-weight: 800;\n    margin-bottom: 18px;\n  }\n\n  .dbspd-eyebrow:before {\n    content: \"\";\n    width: 8px;\n    height: 8px;\n    border-radius: 99px;\n    background: var(--green);\n    box-shadow: 0 0 0 5px rgba(24,160,88,.12);\n  }\n\n  .dbspd-hero h1 {\n    margin: 0 0 20px;\n    font-size: clamp(38px, 5vw, 66px);\n    line-height: 1.02;\n    letter-spacing: -1.7px;\n    color: var(--dark);\n  }\n\n  .dbspd-hero h1 span {\n    color: var(--blue);\n  }\n\n  .dbspd-lead {\n    margin: 0 0 24px;\n    max-width: 720px;\n    font-size: 18px;\n    line-height: 1.72;\n    color: var(--text);\n  }\n\n  .dbspd-answer {\n    margin: 26px 0 0;\n    padding: 18px 20px;\n    background: #fff;\n    border-left: 5px solid var(--blue);\n    border-radius: 16px;\n    box-shadow: 0 16px 38px rgba(0,72,152,.09);\n  }\n\n  .dbspd-answer p {\n    margin: 0;\n    color: var(--dark);\n    font-size: 16px;\n    line-height: 1.68;\n  }\n\n  .dbspd-answer strong {\n    color: var(--blue);\n  }\n\n  .dbspd-actions {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 14px;\n    margin-top: 28px;\n  }\n\n  .dbspd-btn {\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    min-height: 48px;\n    padding: 14px 22px;\n    border-radius: 999px;\n    font-size: 15px;\n    font-weight: 850;\n    line-height: 1;\n    text-decoration: none !important;\n    transition: .22s ease;\n    cursor: pointer;\n    font-family: inherit;\n  }\n\n  .dbspd-btn-primary {\n    background: var(--blue);\n    color: #fff !important;\n    border: 0;\n    box-shadow: 0 14px 28px rgba(0,72,152,.22);\n  }\n\n  .dbspd-btn-primary:hover {\n    background: #003c80;\n    transform: translateY(-2px);\n  }\n\n  .dbspd-btn-secondary {\n    background: #fff;\n    color: var(--blue) !important;\n    border: 1px solid rgba(0,72,152,.22);\n  }\n\n  .dbspd-btn-secondary:hover {\n    border-color: var(--blue);\n    transform: translateY(-2px);\n    box-shadow: 0 12px 24px rgba(0,72,152,.10);\n  }\n\n  button.dbspd-btn {\n    appearance: none;\n    -webkit-appearance: none;\n  }\n\n  .dbspd-visual-card {\n    background: #fff;\n    border: 1px solid rgba(0,72,152,.14);\n    border-radius: 30px;\n    padding: 26px;\n    box-shadow: 0 26px 62px rgba(16,32,51,.11);\n    position: relative;\n  }\n\n  .dbspd-visual-top {\n    display: flex;\n    align-items: center;\n    justify-content: space-between;\n    gap: 14px;\n    margin-bottom: 18px;\n  }\n\n  .dbspd-visual-top strong {\n    font-size: 18px;\n    color: var(--dark);\n  }\n\n  .dbspd-visual-top span {\n    padding: 7px 10px;\n    border-radius: 999px;\n    background: var(--soft2);\n    color: var(--blue);\n    font-size: 12px;\n    font-weight: 900;\n  }\n\n  .dbspd-board {\n    border-radius: 24px;\n    background: linear-gradient(180deg, #f7fbff, #edf5ff);\n    border: 1px solid #d5e7f8;\n    padding: 22px;\n  }\n\n  .dbspd-board-row {\n    display: grid;\n    grid-template-columns: 1fr 1.15fr;\n    gap: 12px;\n    margin-bottom: 12px;\n  }\n\n  .dbspd-module {\n    min-height: 74px;\n    padding: 12px;\n    border-radius: 15px;\n    background: #fff;\n    border: 1px solid #d7e7f7;\n    box-shadow: inset 0 -2px 0 rgba(0,72,152,.06);\n  }\n\n  .dbspd-module small {\n    display: block;\n    margin-bottom: 5px;\n    color: var(--muted);\n    font-size: 11px;\n    text-transform: uppercase;\n    letter-spacing: .06em;\n    font-weight: 900;\n  }\n\n  .dbspd-module b {\n    display: block;\n    color: var(--dark);\n    font-size: 15px;\n    line-height: 1.25;\n  }\n\n  .dbspd-module-spd {\n    background: linear-gradient(135deg, #004898, #0b63c7);\n    border-color: rgba(0,72,152,.28);\n  }\n\n  .dbspd-module-spd small,\n  .dbspd-module-spd b {\n    color: #fff;\n  }\n\n  .dbspd-earth {\n    margin-top: 16px;\n    padding: 13px 14px;\n    background: #102033;\n    color: #fff;\n    border-radius: 15px;\n    display: flex;\n    align-items: center;\n    justify-content: space-between;\n    font-size: 13px;\n    font-weight: 900;\n  }\n\n  .dbspd-visual-note {\n    margin-top: 16px;\n    padding: 13px 14px;\n    border-radius: 15px;\n    background: #fff8e6;\n    border: 1px solid #ffe2a8;\n    color: #665000;\n    font-size: 13px;\n    line-height: 1.55;\n  }\n\n  .dbspd-section {\n    padding: 76px 0;\n  }\n\n  .dbspd-section-soft {\n    background: var(--soft);\n  }\n\n  .dbspd-head {\n    max-width: 860px;\n    margin-bottom: 34px;\n  }\n\n  .dbspd-kicker {\n    margin-bottom: 10px;\n    color: var(--blue);\n    font-size: 14px;\n    font-weight: 950;\n    letter-spacing: .08em;\n    text-transform: uppercase;\n  }\n\n  .dbspd-section h2 {\n    margin: 0 0 14px;\n    color: var(--dark);\n    font-size: clamp(28px, 3.35vw, 42px);\n    line-height: 1.14;\n    letter-spacing: -.8px;\n  }\n\n  .dbspd-head p {\n    margin: 0;\n    color: var(--text);\n    font-size: 17px;\n    line-height: 1.72;\n  }\n\n  .dbspd-grid-2 {\n    display: grid;\n    grid-template-columns: repeat(2, 1fr);\n    gap: 22px;\n  }\n\n  .dbspd-grid-3 {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 18px;\n  }\n\n  .dbspd-card {\n    background: #fff;\n    border: 1px solid var(--line);\n    border-radius: 22px;\n    padding: 24px;\n    box-shadow: 0 12px 30px rgba(16,32,51,.05);\n  }\n\n  .dbspd-icon {\n    width: 44px;\n    height: 44px;\n    border-radius: 15px;\n    background: var(--soft2);\n    color: var(--blue);\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    font-weight: 950;\n    margin-bottom: 16px;\n  }\n\n  .dbspd-card h3 {\n    margin: 0 0 10px;\n    color: var(--dark);\n    font-size: 21px;\n    line-height: 1.25;\n  }\n\n  .dbspd-card p {\n    margin: 0;\n    color: var(--text);\n    line-height: 1.68;\n  }\n\n  .dbspd-card p + p {\n    margin-top: 14px;\n  }\n\n  .dbspd-card a {\n    color: var(--blue);\n    font-weight: 800;\n  }\n\n  .dbspd-table-wrap {\n    overflow-x: auto;\n    border: 1px solid var(--line);\n    border-radius: 22px;\n    background: #fff;\n    box-shadow: 0 12px 30px rgba(16,32,51,.05);\n  }\n\n  .dbspd-table {\n    width: 100%;\n    min-width: 860px;\n    border-collapse: collapse;\n  }\n\n  .dbspd-table th {\n    padding: 16px 18px;\n    background: var(--blue);\n    color: #fff;\n    text-align: left;\n    font-size: 14px;\n    line-height: 1.38;\n  }\n\n  .dbspd-table td {\n    padding: 16px 18px;\n    border-bottom: 1px solid var(--line);\n    color: var(--text);\n    line-height: 1.58;\n    vertical-align: top;\n  }\n\n  .dbspd-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .dbspd-table strong {\n    color: var(--dark);\n  }\n\n  .dbspd-badge {\n    display: inline-flex;\n    width: fit-content;\n    padding: 6px 10px;\n    border-radius: 999px;\n    background: var(--soft2);\n    color: var(--blue);\n    font-size: 12px;\n    font-weight: 950;\n    margin-bottom: 10px;\n  }\n\n  .dbspd-badge-orange {\n    background: #fff4dc;\n    color: #9a6400;\n  }\n\n  .dbspd-badge-green {\n    background: #eaf8f1;\n    color: #08713b;\n  }\n\n  .dbspd-rule {\n    background: #fff;\n    border: 1px solid var(--line);\n    border-radius: 24px;\n    padding: 24px;\n    box-shadow: 0 14px 34px rgba(16,32,51,.05);\n  }\n\n  .dbspd-rule ul {\n    display: grid;\n    gap: 14px;\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  .dbspd-rule li {\n    display: grid;\n    grid-template-columns: 34px 1fr;\n    gap: 12px;\n    color: var(--text);\n    line-height: 1.6;\n  }\n\n  .dbspd-rule li span {\n    width: 34px;\n    height: 34px;\n    border-radius: 12px;\n    background: var(--soft2);\n    color: var(--blue);\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    font-weight: 950;\n  }\n\n  .dbspd-warning {\n    padding: 20px 22px;\n    border-radius: 22px;\n    background: #fff9ea;\n    border: 1px solid #ffe1a3;\n    color: #665000;\n    line-height: 1.68;\n  }\n\n  .dbspd-warning strong {\n    color: #4e3c00;\n  }\n\n  .dbspd-product {\n    display: flex;\n    flex-direction: column;\n    min-height: 100%;\n    background: #fff;\n    border: 1px solid var(--line);\n    border-radius: 22px;\n    padding: 24px;\n    box-shadow: 0 12px 30px rgba(16,32,51,.05);\n  }\n\n  .dbspd-product h3 {\n    margin: 0 0 10px;\n    font-size: 21px;\n    color: var(--dark);\n  }\n\n  .dbspd-product p {\n    margin: 0 0 16px;\n    color: var(--text);\n    line-height: 1.68;\n  }\n\n  .dbspd-product ul {\n    margin: 0 0 22px;\n    padding-left: 18px;\n    color: var(--text);\n    line-height: 1.72;\n  }\n\n  .dbspd-product-actions {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 10px;\n    margin-top: auto;\n  }\n\n  .dbspd-mini-btn {\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    min-height: 40px;\n    padding: 11px 15px;\n    border-radius: 999px;\n    border: 1px solid rgba(0,72,152,.22);\n    background: #fff;\n    color: var(--blue) !important;\n    text-decoration: none !important;\n    font-family: inherit;\n    font-size: 13px;\n    font-weight: 950;\n    cursor: pointer;\n  }\n\n  .dbspd-mini-btn:hover {\n    border-color: var(--blue);\n    box-shadow: 0 10px 22px rgba(0,72,152,.10);\n  }\n\n  .dbspd-mini-btn-fill {\n    background: var(--blue);\n    color: #fff !important;\n  }\n\n  button.dbspd-mini-btn {\n    appearance: none;\n    -webkit-appearance: none;\n  }\n\n  .dbspd-checklist {\n    display: grid;\n    grid-template-columns: repeat(2, 1fr);\n    gap: 14px;\n  }\n\n  .dbspd-check {\n    display: grid;\n    grid-template-columns: 26px 1fr;\n    gap: 10px;\n    align-items: start;\n    padding: 16px 17px;\n    border-radius: 18px;\n    background: #fff;\n    border: 1px solid var(--line);\n    color: var(--text);\n    line-height: 1.58;\n  }\n\n  .dbspd-check:before {\n    content: \"\u2713\";\n    width: 26px;\n    height: 26px;\n    border-radius: 99px;\n    background: #eaf8f1;\n    color: var(--green);\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    font-weight: 950;\n  }\n\n  .dbspd-faq {\n    display: grid;\n    gap: 14px;\n  }\n\n  .dbspd-faq details {\n    padding: 18px 20px;\n    border-radius: 18px;\n    border: 1px solid var(--line);\n    background: #fff;\n  }\n\n  .dbspd-faq summary {\n    cursor: pointer;\n    color: var(--dark);\n    font-weight: 950;\n    font-size: 16px;\n  }\n\n  .dbspd-faq p {\n    margin: 12px 0 0;\n    color: var(--text);\n    line-height: 1.68;\n  }\n\n  .dbspd-cta {\n    padding: 52px 0;\n    background:\n      radial-gradient(circle at 88% 20%, rgba(0,72,152,.055), transparent 30%),\n      linear-gradient(135deg, #f7fafd 0%, #f2f7fb 52%, #edf5fb 100%);\n    border-top: 1px solid #dbe8f5;\n    color: var(--dark);\n  }\n\n  .dbspd-cta-grid {\n    display: grid;\n    grid-template-columns: minmax(0, 760px) auto;\n    gap: 42px;\n    justify-content: start;\n    align-items: center;\n  }\n\n  .dbspd-cta h2 {\n    margin: 0 0 12px;\n    color: var(--dark);\n    font-size: clamp(28px, 3.4vw, 44px);\n    line-height: 1.14;\n  }\n\n  .dbspd-cta p {\n    margin: 0;\n    color: var(--text);\n    font-size: 17px;\n    line-height: 1.7;\n  }\n\n  .dbspd-cta .dbspd-actions {\n    margin-top: 0;\n  }\n\n  .dbspd-cta .dbspd-btn-secondary {\n    background: var(--blue);\n    border-color: var(--blue);\n    color: #fff !important;\n    box-shadow: 0 12px 26px rgba(0,72,152,.18);\n  }\n\n  .dbspd-cta .dbspd-btn-secondary:hover {\n    background: #003c80;\n    border-color: #003c80;\n    color: #fff !important;\n    box-shadow: 0 14px 28px rgba(0,72,152,.24);\n  }\n\n  @media (max-width: 900px) {\n    .dbspd-hero {\n      padding: 54px 0 44px;\n    }\n\n    .dbspd-hero-grid,\n    .dbspd-grid-2,\n    .dbspd-cta-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .dbspd-cta-grid {\n      gap: 24px;\n    }\n\n    .dbspd-grid-3 {\n      grid-template-columns: 1fr;\n    }\n\n    .dbspd-checklist {\n      grid-template-columns: 1fr;\n    }\n\n    .dbspd-section {\n      padding: 54px 0;\n    }\n  }\n\n  @media (max-width: 560px) {\n    .dbspd-container {\n      width: min(100% - 26px, 1180px);\n    }\n\n    .dbspd-hero h1 {\n      font-size: 36px;\n    }\n\n    .dbspd-lead {\n      font-size: 16px;\n    }\n\n    .dbspd-actions {\n      flex-direction: column;\n    }\n\n    .dbspd-btn {\n      width: 100%;\n    }\n\n    .dbspd-visual-card {\n      padding: 18px;\n      border-radius: 22px;\n    }\n\n    .dbspd-board-row {\n      grid-template-columns: 1fr;\n    }\n\n    .dbspd-card,\n    .dbspd-rule,\n    .dbspd-product {\n      padding: 20px;\n    }\n\n    .dbspd-cta {\n      padding: 42px 0;\n    }\n\n    .dbspd-cta h2 {\n      font-size: 30px;\n    }\n\n    .dbspd-cta p {\n      font-size: 16px;\n    }\n  }\n<\/style>\n\n<div class=\"dbspd-page\">\n\n  <section class=\"dbspd-hero\">\n    <div class=\"dbspd-container\">\n      <div class=\"dbspd-hero-grid\">\n\n        <div>\n          <div class=\"dbspd-eyebrow\">Distribution Board Surge Protection Selection<\/div>\n\n          <h1>SPD for <span>Distribution Board<\/span><\/h1>\n\n          <p class=\"dbspd-lead\">\n            Choose the right surge protective device for main distribution boards, sub-distribution boards, electrical panels, power panels, consumer units, and industrial control panels. This guide helps panel builders, contractors, distributors, and OEM buyers compare Type 2 and Type 1+2 DIN rail SPDs, pole configurations, earthing systems, surge ratings, backup protection, and installation positions.\n          <\/p>\n\n          <div class=\"dbspd-answer\">\n            <p>\n              <strong>Quick answer:<\/strong> Most sub-distribution boards use a Type 2 DIN rail SPD. Main incoming distribution boards may need a Type 1+2 SPD when the building has higher lightning exposure, an external lightning protection system, or an overhead supply. The SPD must match the AC voltage, earthing system, phase configuration, surge rating, backup protection, and project requirements.\n            <\/p>\n          <\/div>\n\n          <div class=\"dbspd-actions\">\n            <button type=\"button\" class=\"dbspd-btn dbspd-btn-primary leeyee-site-popup-btn\">\n              Request SPD Selection\n            <\/button>\n\n            <a class=\"dbspd-btn dbspd-btn-secondary\" href=\"https:\/\/www.cnspd.com\/type-2-din-rail-surge-protector\/\">\n              View Type 2 DIN Rail SPD\n            <\/a>\n          <\/div>\n        <\/div>\n\n        <div class=\"dbspd-visual-card\">\n          <div class=\"dbspd-visual-top\">\n            <strong>Distribution Board SPD Position<\/strong>\n            <span>DIN Rail Layout<\/span>\n          <\/div>\n\n          <div class=\"dbspd-board\">\n\n            <div class=\"dbspd-board-row\">\n              <div class=\"dbspd-module\">\n                <small>Incoming<\/small>\n                <b>Main Supply<\/b>\n              <\/div>\n\n              <div class=\"dbspd-module\">\n                <small>Protection<\/small>\n                <b>Main Switch \/ Breaker<\/b>\n              <\/div>\n            <\/div>\n\n            <div class=\"dbspd-board-row\">\n              <div class=\"dbspd-module dbspd-module-spd\">\n                <small>Parallel Protection<\/small>\n                <b>Type 2 \/ Type 1+2 SPD<\/b>\n              <\/div>\n\n              <div class=\"dbspd-module\">\n                <small>Outgoing<\/small>\n                <b>MCB \/ RCD \/ Loads<\/b>\n              <\/div>\n            <\/div>\n\n            <div class=\"dbspd-earth\">\n              <span>PE \/ Earth Bar<\/span>\n              <span>Short, Direct Lead<\/span>\n            <\/div>\n\n            <div class=\"dbspd-visual-note\">\n              Install the SPD close to the incoming side of the board and keep the connection to live conductors and earth as short and straight as practical.\n            <\/div>\n\n          <\/div>\n        <\/div>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Selection Map<\/div>\n\n        <h2>Which SPD Should Be Used in a Distribution Board or Electrical Panel?<\/h2>\n\n        <p>\n          Distribution board and electrical panel SPD selection starts with the installation position. A main incoming board, sub-board, consumer unit, and industrial control panel do not always need the same SPD type.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-table-wrap\">\n        <table class=\"dbspd-table\">\n\n          <thead>\n            <tr>\n              <th>Board Position<\/th>\n              <th>Recommended SPD<\/th>\n              <th>Typical Application<\/th>\n              <th>Key Decision Point<\/th>\n            <\/tr>\n          <\/thead>\n\n          <tbody>\n\n            <tr>\n              <td><strong>Main distribution board \/ MDB<\/strong><\/td>\n              <td>Type 1+2 SPD or Type 2 SPD<\/td>\n              <td>Building incoming panel, main switchboard, service entrance<\/td>\n              <td>Use Type 1+2 where lightning-current duty is required by the lightning protection concept or project specification.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Sub-distribution board<\/strong><\/td>\n              <td>Type 2 DIN rail SPD<\/td>\n              <td>Workshop DB, office floor DB, machine area panel, electrical room<\/td>\n              <td>Type 2 is a common choice for downstream distribution-board surge protection.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Consumer unit<\/strong><\/td>\n              <td>1P+N or 2P Type 2 SPD<\/td>\n              <td>Residential and small commercial AC boards<\/td>\n              <td>Match single-phase wiring, neutral protection, earthing system, and local installation practice.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Three-phase distribution board<\/strong><\/td>\n              <td>3P, 3P+N, or 4P Type 2 SPD<\/td>\n              <td>Commercial buildings, factories, pumps, HVAC, industrial loads<\/td>\n              <td>Match phase configuration, neutral structure, earthing system, and the approved SPD protection circuit.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Industrial control panel<\/strong><\/td>\n              <td>Type 2 SPD, sometimes with coordinated downstream protection<\/td>\n              <td>PLC cabinets, automation panels, control rooms<\/td>\n              <td>Pay particular attention to Up, conductor routing, and coordination where sensitive electronics are installed.<\/td>\n            <\/tr>\n\n          <\/tbody>\n\n        <\/table>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section dbspd-section-soft\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Type 2 vs Type 1+2<\/div>\n\n        <h2>When Is Type 2 Enough, and When Do You Need Type 1+2?<\/h2>\n\n        <p>\n          The SPD type should not be selected from breaker size or a single kA value alone. It depends on the board position, lightning exposure, incoming supply arrangement, earthing system, required protection level, and project specification.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-grid-2\">\n\n        <div class=\"dbspd-card\">\n          <span class=\"dbspd-badge dbspd-badge-green\">Most common<\/span>\n\n          <h3>Use Type 2 SPD for most sub-distribution boards<\/h3>\n\n          <p>\n            Type 2 DIN rail SPDs are typically used for secondary surge protection in downstream distribution boards, commercial panels, machine panels, and consumer units. They are tested with the 8\/20 \u03bcs surge waveform and are used to limit transient overvoltage caused by indirect lightning effects and switching surges.\n          <\/p>\n\n          <p>\n            For a broader comparison of Type 2 ratings, Uc, In, Imax, Up, pole configurations, and application conditions, see the\n            <a href=\"https:\/\/www.cnspd.com\/type-2-spd\/\">Type 2 SPD Selection Guide<\/a>.\n          <\/p>\n        <\/div>\n\n        <div class=\"dbspd-card\">\n          <span class=\"dbspd-badge dbspd-badge-orange\">Higher exposure<\/span>\n\n          <h3>Use Type 1+2 SPD for main incoming boards when required<\/h3>\n\n          <p>\n            A Type 1+2 SPD is used where the incoming distribution board must handle lightning impulse current as well as downstream surge protection duties. This can apply to projects with external lightning protection, exposed incoming supplies, or other conditions where Type 1 performance is required.\n          <\/p>\n        <\/div>\n\n      <\/div>\n\n      <div class=\"dbspd-warning\" style=\"margin-top:22px;\">\n        <strong>Selection note:<\/strong> Do not treat \u201c40kA\u201d or \u201c80kA\u201d as the only decision. For distribution boards, confirm Uc, In, Imax, Iimp when relevant, Up, short-circuit conditions, backup protection, pole configuration, earthing system, and project requirements.\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Sizing Rules<\/div>\n\n        <h2>How to Size an SPD for a Distribution Board or Power Panel<\/h2>\n\n        <p>\n          Do not size a distribution-board SPD with a simple \u201cbreaker amp = SPD kA\u201d rule. Use the electrical system, SPD type, installation position, surge ratings, voltage protection level, backup protection, and project requirements together.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-table-wrap\">\n        <table class=\"dbspd-table\">\n\n          <thead>\n            <tr>\n              <th>Selection Item<\/th>\n              <th>What to Check<\/th>\n              <th>Practical Direction<\/th>\n            <\/tr>\n          <\/thead>\n\n          <tbody>\n\n            <tr>\n              <td><strong>SPD Type<\/strong><\/td>\n              <td>Type 1+2 or Type 2<\/td>\n              <td>Main incoming boards may require Type 1+2 where lightning-current duty is specified. Sub-distribution boards commonly use Type 2.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Uc<\/strong><\/td>\n              <td>Maximum continuous operating voltage<\/td>\n              <td>Match the AC system voltage, protection mode, and earthing arrangement. Do not use a DC SPD for a normal AC distribution board.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>In<\/strong><\/td>\n              <td>Nominal discharge current<\/td>\n              <td>For many Type 2 distribution-board SPDs, In = 20kA is a common nominal discharge-current rating. Confirm the required In from the project specification and exact product datasheet.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Imax<\/strong><\/td>\n              <td>Maximum discharge current<\/td>\n              <td>Imax = 40kA is common in many Type 2 SPD series, while higher values may be available for specific applications. Do not select an SPD from Imax alone.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Iimp<\/strong><\/td>\n              <td>Lightning impulse current for Type 1 \/ Type 1+2<\/td>\n              <td>Relevant for incoming distribution boards where lightning-current handling is required.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Up<\/strong><\/td>\n              <td>Voltage protection level<\/td>\n              <td>Evaluate Up against downstream equipment requirements and the real installation lead length.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Backup protection<\/strong><\/td>\n              <td>Fuse or breaker coordination<\/td>\n              <td>Follow the exact SPD datasheet for permitted backup protection, short-circuit conditions, and installation method.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>Remote signal<\/strong><\/td>\n              <td>Status monitoring contact<\/td>\n              <td>Useful for commercial, industrial, and OEM boards that require remote maintenance or alarm visibility.<\/td>\n            <\/tr>\n\n          <\/tbody>\n\n        <\/table>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section dbspd-section-soft\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Pole Configuration<\/div>\n\n        <h2>Single-Phase and Three-Phase SPD Selection for Distribution Boards and Electrical Panels<\/h2>\n\n        <p>\n          Pole configuration is a practical purchasing decision for distribution-board and electrical-panel projects. Buyers commonly need to confirm whether the system requires 1P+N, 2P, 3P, 3P+N, or 4P protection before approving the final SPD model.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-grid-3\">\n\n        <div class=\"dbspd-card\">\n          <div class=\"dbspd-icon\">1\u03a6<\/div>\n\n          <h3>Single-phase board<\/h3>\n\n          <p>\n            Common for residential and small commercial boards. Typical SPD options include 1P+N or 2P Type 2 SPD, depending on the wiring system, earthing arrangement, and local installation practice.\n          <\/p>\n        <\/div>\n\n        <div class=\"dbspd-card\">\n          <div class=\"dbspd-icon\">3\u03a6<\/div>\n\n          <h3>Three-phase board without neutral<\/h3>\n\n          <p>\n            Some three-phase systems use 3P SPD configurations. The final choice should match the actual conductor arrangement, earthing system, voltage, and manufacturer-approved protection circuit.\n          <\/p>\n        <\/div>\n\n        <div class=\"dbspd-card\">\n          <div class=\"dbspd-icon\">4P<\/div>\n\n          <h3>Three-phase board with neutral<\/h3>\n\n          <p>\n            3P+N \/ 3+1 and 4P \/ 4+0 options are used in different three-phase systems. Pole count alone is not enough; confirm the internal protection topology and system requirements.\n          <\/p>\n\n          <p>\n            <a href=\"https:\/\/www.cnspd.com\/3-phase-surge-protector\/\">See the 3 Phase Surge Protector Selection Guide \u2192<\/a>\n          <\/p>\n        <\/div>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Earthing System<\/div>\n\n        <h2>How Earthing Systems Affect Distribution Board and Electrical Panel SPD Selection<\/h2>\n\n        <p>\n          The earthing system directly affects SPD protection modes, pole configuration, neutral-to-earth protection, temporary overvoltage conditions, and coordination with other protective devices.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-table-wrap\">\n        <table class=\"dbspd-table\">\n\n          <thead>\n            <tr>\n              <th>Earthing System<\/th>\n              <th>Common Selection Concern<\/th>\n              <th>Buyer Note<\/th>\n            <\/tr>\n          <\/thead>\n\n          <tbody>\n\n            <tr>\n              <td><strong>TN-S<\/strong><\/td>\n              <td>Separate neutral and PE conductors<\/td>\n              <td>Do not assume one universal pole arrangement. Confirm the approved protection circuit, protection modes, Uc, Up, and project requirements.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>TN-C-S<\/strong><\/td>\n              <td>PEN conductor is separated into N and PE<\/td>\n              <td>Confirm whether the SPD is installed before or after PEN separation and how the conductors are arranged at that point.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>TT<\/strong><\/td>\n              <td>N-PE protection and protective-device coordination require care<\/td>\n              <td>3+1 arrangements are common in many TT applications, but the exact SPD must be approved for the actual system and project.<\/td>\n            <\/tr>\n\n            <tr>\n              <td><strong>IT<\/strong><\/td>\n              <td>Insulated or impedance-earthed system<\/td>\n              <td>Final SPD choice should follow the system design, voltage conditions, and project specification.<\/td>\n            <\/tr>\n\n          <\/tbody>\n\n        <\/table>\n      <\/div>\n\n      <div class=\"dbspd-warning\" style=\"margin-top:22px;\">\n        <strong>Important:<\/strong> Final wiring and SPD installation should follow the project single-line diagram, applicable local requirements, and the exact SPD manufacturer documentation.\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section dbspd-section-soft\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Installation Position<\/div>\n\n        <h2>Where Should an SPD Be Installed in a Distribution Board or Electrical Panel?<\/h2>\n\n        <p>\n          SPD performance is affected by wiring length and layout. The device should be positioned so surge current can be diverted through a short, direct protection path without unnecessary conductor length.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-grid-2\">\n\n        <div class=\"dbspd-rule\">\n          <ul>\n\n            <li>\n              <span>1<\/span>\n              <div>\n                <strong>Install close to the incoming side.<\/strong><br>\n                Place the SPD near the main switch, incoming breaker, or supply entry point where the panel design allows.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>2<\/span>\n              <div>\n                <strong>Keep conductors short and direct.<\/strong><br>\n                Long connection leads increase the voltage appearing across the protected equipment during a fast surge.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>3<\/span>\n              <div>\n                <strong>Use the correct PE connection.<\/strong><br>\n                Connect the SPD to the appropriate PE \/ earth bar according to the manufacturer installation instructions and project design.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>4<\/span>\n              <div>\n                <strong>Check backup protection.<\/strong><br>\n                Use the fuse or breaker arrangement permitted by the exact SPD datasheet and installation conditions.\n              <\/div>\n            <\/li>\n\n          <\/ul>\n        <\/div>\n\n        <div class=\"dbspd-rule\">\n          <ul>\n\n            <li>\n              <span>5<\/span>\n              <div>\n                <strong>Do not mix AC and DC SPD.<\/strong><br>\n                AC distribution boards need AC-rated SPDs. DC \/ PV SPDs are intended for DC circuits such as PV strings and combiner boxes.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>6<\/span>\n              <div>\n                <strong>Check RCD coordination.<\/strong><br>\n                SPD position relative to RCDs depends on the board design, protection circuit, earthing system, and applicable installation requirements.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>7<\/span>\n              <div>\n                <strong>Leave enough DIN rail space.<\/strong><br>\n                Confirm module width, conductor routing, and maintenance access before ordering.\n              <\/div>\n            <\/li>\n\n            <li>\n              <span>8<\/span>\n              <div>\n                <strong>Use remote signal where required.<\/strong><br>\n                Commercial, industrial, and OEM panels may require remote SPD status monitoring.\n              <\/div>\n            <\/li>\n\n          <\/ul>\n        <\/div>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">LEEYEE Product Mapping<\/div>\n\n        <h2>Recommended LEEYEE SPDs for Distribution Board Applications<\/h2>\n\n        <p>\n          LEEYEE is a professional surge protection and low-voltage protection supplier for power distribution, industrial, solar PV, telecom, OEM, and private-label applications. CNSPD is LEEYEE's global surge protection platform for technical selection, product information, and B2B sourcing support.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-grid-3\">\n\n        <div class=\"dbspd-product\">\n          <span class=\"dbspd-badge dbspd-badge-green\">For most DBs<\/span>\n\n          <h3>Type 2 DIN Rail SPD<\/h3>\n\n          <p>\n            A common choice for sub-distribution boards, consumer units, commercial panels, and general AC distribution surge protection.\n          <\/p>\n\n          <ul>\n            <li>For secondary surge protection<\/li>\n            <li>Single-phase and three-phase options<\/li>\n            <li>Pluggable module options available<\/li>\n          <\/ul>\n\n          <div class=\"dbspd-product-actions\">\n            <a class=\"dbspd-mini-btn\" href=\"https:\/\/www.cnspd.com\/type-2-din-rail-surge-protector\/\">View Page<\/a>\n\n            <button type=\"button\" class=\"dbspd-mini-btn dbspd-mini-btn-fill leeyee-site-popup-btn\">\n              Get Quote\n            <\/button>\n          <\/div>\n        <\/div>\n\n        <div class=\"dbspd-product\">\n          <span class=\"dbspd-badge dbspd-badge-orange\">For incoming boards<\/span>\n\n          <h3>Type 1+2 DIN Rail SPD<\/h3>\n\n          <p>\n            Used where the main distribution board requires combined lightning-current and surge protection performance.\n          <\/p>\n\n          <ul>\n            <li>For incoming distribution panels<\/li>\n            <li>Can coordinate with downstream Type 2 SPD<\/li>\n            <li>For projects requiring Type 1+2 performance<\/li>\n          <\/ul>\n\n          <div class=\"dbspd-product-actions\">\n            <a class=\"dbspd-mini-btn\" href=\"https:\/\/www.cnspd.com\/type-1-2-din-rail-surge-protector\/\">View Page<\/a>\n\n            <button type=\"button\" class=\"dbspd-mini-btn dbspd-mini-btn-fill leeyee-site-popup-btn\">\n              Get Quote\n            <\/button>\n          <\/div>\n        <\/div>\n\n        <div class=\"dbspd-product\">\n          <span class=\"dbspd-badge\">Family page<\/span>\n\n          <h3>DIN Rail Surge Protector<\/h3>\n\n          <p>\n            Compare DIN rail SPD families for AC distribution boards, DC systems, industrial control panels, solar applications, and OEM assemblies.\n          <\/p>\n\n          <ul>\n            <li>DIN rail mounted SPD family<\/li>\n            <li>AC and DC product options<\/li>\n            <li>OEM and private-label support<\/li>\n          <\/ul>\n\n          <div class=\"dbspd-product-actions\">\n            <a class=\"dbspd-mini-btn\" href=\"https:\/\/www.cnspd.com\/din-rail-surge-protector\/\">View Page<\/a>\n\n            <button type=\"button\" class=\"dbspd-mini-btn dbspd-mini-btn-fill leeyee-site-popup-btn\">\n              Get Quote\n            <\/button>\n          <\/div>\n        <\/div>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section dbspd-section-soft\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">Quote Checklist<\/div>\n\n        <h2>Send These Details for a Faster SPD Recommendation<\/h2>\n\n        <p>\n          For a faster and more accurate SPD recommendation, send the following electrical and commercial information before requesting a quotation.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-checklist\">\n        <div class=\"dbspd-check\">Distribution board type: main board, sub-board, consumer unit, control panel, or OEM electrical box.<\/div>\n        <div class=\"dbspd-check\">AC system voltage: for example 230V, 400V, 480V, or another project voltage.<\/div>\n        <div class=\"dbspd-check\">Phase system: single-phase or three-phase.<\/div>\n        <div class=\"dbspd-check\">Earthing system: TT, TN-S, TN-C-S, TN-C, or IT, if known.<\/div>\n        <div class=\"dbspd-check\">Required SPD type: Type 2, Type 1+2, or not sure.<\/div>\n        <div class=\"dbspd-check\">Pole configuration: 1P+N, 2P, 3P, 3P+N, or 4P.<\/div>\n        <div class=\"dbspd-check\">Surge rating requirement: In, Imax, Iimp, or project specification.<\/div>\n        <div class=\"dbspd-check\">Need for remote signal contact, visual indicator, or pluggable replacement module.<\/div>\n        <div class=\"dbspd-check\">Certification or market requirement: IEC, EN, CE, T\u00dcV, CB, or local project standard.<\/div>\n        <div class=\"dbspd-check\">Quantity, OEM logo, packaging, datasheet, and delivery schedule.<\/div>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-section\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-head\">\n        <div class=\"dbspd-kicker\">FAQ<\/div>\n\n        <h2>SPD for Distribution Board FAQ<\/h2>\n\n        <p>\n          Practical answers to common distribution-board and electrical-panel SPD selection questions.\n        <\/p>\n      <\/div>\n\n      <div class=\"dbspd-faq\">\n\n        <details open>\n          <summary>What type of SPD is used in a distribution board?<\/summary>\n\n          <p>\n            Most sub-distribution boards use a Type 2 DIN rail SPD. Main incoming distribution boards may need Type 1 or Type 1+2 performance where lightning-current duty is required by the project or lightning protection concept.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>Is Type 2 SPD enough for a distribution board?<\/summary>\n\n          <p>\n            Type 2 SPD is suitable for many sub-distribution boards, consumer units, and downstream electrical panels. Incoming boards may require Type 1 or Type 1+2 protection depending on lightning exposure and the overall protection design.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>Where should an SPD be installed in a distribution board?<\/summary>\n\n          <p>\n            The SPD is normally installed close to the incoming side of the board with a short, direct connection path to the relevant conductors and PE \/ earth. Final routing should follow the exact SPD manufacturer instructions.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>What kA rating should I choose for a distribution board SPD?<\/summary>\n\n          <p>\n            Do not choose a distribution-board SPD from one kA value alone. For Type 2 SPDs, In and Imax describe different discharge-current ratings. A common product configuration may use In = 20kA and Imax = 40kA, but the correct selection must also match Uc, Up, earthing system, installation position, backup protection, short-circuit conditions, and the project specification.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>What is the difference between Type 1+2 SPD and Type 2 SPD?<\/summary>\n\n          <p>\n            Type 1+2 SPD combines lightning-current and surge protection performance and is used where the installation requires Type 1 capability together with Type 2 performance. Type 2 SPD is commonly used for downstream surge protection in sub-distribution boards and electrical panels.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>Can I use a DC SPD in an AC distribution board?<\/summary>\n\n          <p>\n            No. A normal AC distribution board should use an AC-rated SPD suitable for the AC system voltage and protection mode. DC SPDs are designed for DC circuits such as PV strings, battery systems, and DC combiner boxes.\n          <\/p>\n        <\/details>\n\n        <details>\n          <summary>What information is needed to choose the right SPD?<\/summary>\n\n          <p>\n            Confirm the board position, AC voltage, phase system, earthing system, SPD type, pole configuration, Uc, Up, required discharge-current ratings, backup protection, short-circuit conditions, and whether remote signal monitoring is required.\n          <\/p>\n        <\/details>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"dbspd-cta\">\n    <div class=\"dbspd-container\">\n\n      <div class=\"dbspd-cta-grid\">\n\n        <div>\n          <h2>Need the Right SPD for Your Distribution Board?<\/h2>\n\n          <p>\n            Send your board type, system voltage, phase configuration, earthing system, installation position, and target market. LEEYEE can help confirm a suitable DIN rail SPD for commercial, industrial, OEM, and distribution-board applications.\n          <\/p>\n        <\/div>\n\n        <div class=\"dbspd-actions\">\n          <button type=\"button\" class=\"dbspd-btn dbspd-btn-secondary leeyee-site-popup-btn\">\n            Request Selection Support\n          <\/button>\n        <\/div>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n<\/div>\n\n\n<script>\n(function () {\n  function openLeeyeePopup(e) {\n    e.preventDefault();\n\n    var popupTrigger =\n      document.querySelector('.w-popup.ush_popup_1 .w-popup-trigger') ||\n      document.querySelector('.ush_popup_1 .w-popup-trigger');\n\n    if (popupTrigger) {\n      popupTrigger.click();\n    }\n  }\n\n  document.addEventListener('click', function (e) {\n    var btn = e.target.closest('.leeyee-site-popup-btn');\n\n    if (!btn || !document.body.contains(btn)) {\n      return;\n    }\n\n    openLeeyeePopup(e);\n  });\n})();\n<\/script>\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"WebPage\",\n      \"@id\": \"https:\/\/www.cnspd.com\/spd-for-distribution-board\/\",\n      \"url\": \"https:\/\/www.cnspd.com\/spd-for-distribution-board\/\",\n      \"name\": \"SPD for Distribution Board & Electrical Panel | LEEYEE\",\n      \"description\": \"Choose an SPD for distribution boards and electrical panels. Compare Type 2 vs Type 1+2, single- and three-phase layouts, earthing, ratings and installation.\",\n      \"isPartOf\": {\n        \"@type\": \"WebSite\",\n        \"name\": \"CNSPD\",\n        \"url\": \"https:\/\/www.cnspd.com\/\"\n      },\n      \"about\": [\n        {\n          \"@type\": \"Thing\",\n          \"name\": \"Surge protective device for distribution board\"\n        },\n        {\n          \"@type\": \"Thing\",\n          \"name\": \"Surge protection for electrical panel\"\n        },\n        {\n          \"@type\": \"Thing\",\n          \"name\": \"Power panel surge protection\"\n        },\n        {\n          \"@type\": \"Thing\",\n          \"name\": \"Type 2 DIN rail SPD\"\n        },\n        {\n          \"@type\": \"Thing\",\n          \"name\": \"Type 1+2 DIN rail SPD\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What type of SPD is used in a distribution board?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Most sub-distribution boards use a Type 2 DIN rail SPD. 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Incoming boards may require Type 1 or Type 1+2 protection depending on lightning exposure and the overall protection design.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Where should an SPD be installed in a distribution board?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The SPD is normally installed close to the incoming side of the board with a short, direct connection path to the relevant conductors and PE or earth. Final routing should follow the exact SPD manufacturer instructions.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What kA rating should I choose for a distribution board SPD?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Do not choose a distribution-board SPD from one kA value alone. For Type 2 SPDs, In and Imax describe different discharge-current ratings. A common product configuration may use In = 20kA and Imax = 40kA, but the correct selection must also match Uc, Up, earthing system, installation position, backup protection, short-circuit conditions, and the project specification.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is the difference between Type 1+2 SPD and Type 2 SPD?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Type 1+2 SPD combines lightning-current and surge protection performance and is used where the installation requires Type 1 capability together with Type 2 performance. Type 2 SPD is commonly used for downstream surge protection in sub-distribution boards and electrical panels.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can I use a DC SPD in an AC distribution board?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No. A normal AC distribution board should use an AC-rated SPD suitable for the AC system voltage and protection mode. DC SPDs are designed for DC circuits such as PV strings, battery systems, and DC combiner boxes.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What information is needed to choose the right SPD?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Confirm the board position, AC voltage, phase system, earthing system, SPD type, pole configuration, Uc, Up, required discharge-current ratings, backup protection, short-circuit conditions, and whether remote signal monitoring is required.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n<\/script><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Pemilihan Surge Protection untuk Distribution Board. Pilih perangkat pelindung lonjakan arus (SPD) yang tepat untuk panel distribusi utama, sub-distribusi, panel listrik, panel daya, consumer unit, dan panel kontrol industri. Panduan ini membantu pembuat panel, kontraktor, distributor, dan pembeli OEM dalam membandingkan SPD DIN rail Tipe 2 dan Tipe 1+2, konfigurasi kutub, sistem pembumian (earthing), lonjakan...","protected":false},"author":18,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-29582","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SPD for Distribution Board: Type 2 &amp; Type 1+2 Selection | LEEYEE<\/title>\n<meta name=\"description\" content=\"Choose the right SPD for distribution boards. 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