{"id":740,"date":"2025-08-28T14:46:38","date_gmt":"2025-08-28T14:46:38","guid":{"rendered":"https:\/\/cnkuangya.com\/?page_id=740"},"modified":"2025-09-27T15:32:48","modified_gmt":"2025-09-27T15:32:48","slug":"ac-spd","status":"publish","type":"page","link":"https:\/\/cnkuangya.com\/ar\/ac-spd\/","title":{"rendered":"AC SPD"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-99d3e82\" data-block-id=\"99d3e82\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-99d3e82-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-89093e2\" data-v=\"4\" data-block-id=\"89093e2\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-89093e2-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-89093e2-inner-blocks\">\n<section id=\"sec-hero\" class=\"ky-hero\">\n  <style>\n    .ky-hero {\n      position: relative;\n      padding: 90px 16px 70px;\n      background: linear-gradient(180deg, rgba(17,24,39,0.70), rgba(17,24,39,0.45)),\n                  url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/banner.png')\n                  center\/cover no-repeat;\n      color: #fff;\n    }\n    .ky-hero-wrap {\n      max-width: 1200px;\n      margin: 0 auto;\n      display: grid;\n      grid-template-columns: 1.1fr .9fr;\n      gap: 36px;\n      align-items: center;\n    }\n    .ky-hero h1 {\n      font-size: 44px;\n      line-height: 1.2;\n      margin: 0 0 16px;\n      color: #fff;\n    }\n    .ky-hero p {\n      font-size: 18px;\n      margin: 0 0 28px;\n      max-width: 540px;\n      color: #D1D5DB;\n    }\n    .ky-cta { display: flex; gap: 16px; }\n    .ky-btn {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      padding: 12px 22px;\n      border-radius: 999px;\n      font-weight: 600;\n      text-decoration: none;\n      transition: all .3s ease;\n    }\n    .ky-btn.primary {\n      background: #B5220E;\n      color: #fff;\n      border: 2px solid #B5220E;\n    }\n    .ky-btn.primary:hover {\n      background: #fff;\n      color: #B5220E;\n    }\n    .ky-btn.ghost {\n      background: transparent;\n      border: 2px solid #fff;\n      color: #fff;\n    }\n    .ky-btn.ghost:hover {\n      border-color: #B5220E;\n      color: #B5220E;\n    }\n    .ky-illus {\n      height: 320px;\n      border-radius: 18px;\n      background: transparent url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\n                  center\/contain no-repeat;\n      box-shadow: 0 12px 36px rgba(0,0,0,.0);\n    }\n    @media(max-width: 960px){\n      .ky-hero-wrap { grid-template-columns: 1fr; text-align: center; }\n      .ky-illus { margin-top: 28px; height: 240px; }\n    }\n  <\/style>\n\n  <div class=\"ky-hero-wrap\">\n    <div>\n      <h1>AC Surge Protective Device (AC SPD)<\/h1>\n      <p>Engineered for industrial and commercial distribution systems, Kuangya AC SPDs deliver reliable Type 1, Type 2, and Type 1+2 protection against overvoltage events.<\/p>\n      <div class=\"ky-cta\">\n        <a href=\"#acspd-selector\" class=\"ky-btn primary\">See Models<\/a>\n        <a href=\"#sec-cta\" class=\"ky-btn ghost\">Get Quote<\/a>\n      <\/div>\n    <\/div>\n    <div class=\"ky-illus\" aria-label=\"AC SPD product showcase\"><\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-da0a1eb\" data-block-id=\"da0a1eb\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-da0a1eb-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dc48235\" data-v=\"4\" data-block-id=\"dc48235\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dc48235-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dc48235-inner-blocks\">\n<!-- ===== SEC2 \u2014 Quick Selector (Tabs) ===== -->\n<section id=\"acspd-selector\" aria-label=\"AC SPD Selector\">\n  <style>\n  \/* ===== Container & Head ===== *\/\n  #acspd-selector{padding:56px 16px;background:#fff}\n  .ky-sec-head{max-width:1200px;margin:0 auto 12px;text-align:center}\n  .ky-sec-head h2{margin:0 0 8px;font-size:32px;font-weight:800;letter-spacing:.2px}\n  .ky-sec-head p{margin:0;color:#4B5563}\n\n  \/* ===== Steps (\u5bfc\u5411\u63d0\u793a) ===== *\/\n  .ky-steps{\n    max-width:1200px;margin:8px auto 8px;\n    display:flex;gap:10px;justify-content:center;align-items:center;color:#374151\n  }\n  .ky-steps .step{\n    padding:6px 10px;border:1px dashed #E5E7EB;border-radius:999px;\n    background:#F9FAFB;font-size:14px;line-height:1\n  }\n  .ky-steps .arrow{opacity:.6}\n\n  \/* ===== Tabs\uff08\u5438\u9876\uff09 ===== *\/\n  .ky-tabs-wrap{\n    position:sticky; top:64px; z-index:40;\n    background:#fff; padding:8px 0; border-top:1px solid #F3F4F6; border-bottom:1px solid #F3F4F6\n  }\n  .ky-tabs{max-width:1200px;margin:0 auto;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}\n  .ky-tab{\n    position:relative; border:1px solid #E5E7EB; background:#fff; color:#111827;\n    border-radius:999px; padding:10px 16px; cursor:pointer; font-weight:700; transition:.2s\n  }\n  .ky-tab:hover{border-color:#B5220E33}\n  .ky-tab.active{border-color:#B5220E;color:#B5220E}\n  .ky-tab.badge::after{\n    content:\"\u63a8\u8350\"; position:absolute; top:-8px; right:-8px;\n    font-size:10px; background:#B5220E; color:#fff; border-radius:6px; padding:2px 6px\n  }\n\n  \/* ===== Filters\uff08\u5982\u679c\u4fdd\u7559\u6781\u6570\u8fc7\u6ee4\uff09 ===== *\/\n  .ky-filters{max-width:1200px;margin:14px auto 18px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}\n  .ky-chip{border:1px solid #E5E7EB;background:#fff;border-radius:999px;padding:8px 14px;cursor:pointer}\n  .ky-chip.active{border-color:#B5220E;color:#B5220E}\n\n  \/* ===== Scenario Quick Links\uff08\u53ef\u9009\uff09 ===== *\/\n  .ky-scenarios{max-width:1200px;margin:6px auto 14px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}\n  .ky-scenarios button{\n    border:1px solid #E5E7EB;background:#fff;border-radius:10px;padding:8px 12px;cursor:pointer\n  }\n  .ky-scenarios button:hover{border-color:#B5220E;color:#B5220E}\n\n  \/* ===== Subhead & Grid ===== *\/\n  .ky-subhead{max-width:1200px;margin:28px auto 12px;font-size:22px;font-weight:700;text-align:center}\n  .ky-note{max-width:1200px;margin:-6px auto 10px;text-align:center;color:#6B7280;font-size:14px}\n  .ky-note a{color:#B5220E;text-decoration:underline}\n\n  .ky-tab-panel{max-width:1200px;margin:0 auto}\n  .ky-tab-panel[hidden]{display:none !important}\n\n  .ky-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}\n  @media (max-width:1200px){.ky-grid{grid-template-columns:repeat(4,1fr)}}\n  @media (max-width:1000px){.ky-grid{grid-template-columns:repeat(3,1fr)}}\n  @media (max-width:640px){.ky-grid{grid-template-columns:repeat(2,1fr)}}\n\n  \/* ===== Card ===== *\/\n  .ky-card{\n    border:1px solid #E5E7EB;border-radius:14px;overflow:hidden;background:#fff;\n    display:flex;flex-direction:column;transition:.2s\n  }\n  .ky-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06)}\n  .ky-card-img{height:150px;background:#F3F4F6 center\/contain no-repeat}\n  .ky-card-body{padding:12px 14px;flex:1;display:flex;flex-direction:column;gap:6px}\n  .ky-card-model{font-weight:700}\n  .ky-card-meta{font-size:12px;color:#4B5563}\n  .ky-card-tags{display:flex;gap:6px;flex-wrap:wrap}\n  .ky-tag{font-size:12px;border:1px solid #E5E7EB;border-radius:999px;padding:2px 8px;color:#4B5563}\n\n  \/* \u89d2\u6807\uff08\u53ef\u9009\uff1a\u70ed\u9500\/\u65b0\u54c1\uff09 *\/\n  .ky-card{position:relative}\n  .ky-badge{\n    position:absolute;top:8px;left:8px;background:#111827;color:#fff;font-size:11px;\n    padding:2px 6px;border-radius:6px;opacity:.9\n  }\n\n  \/* ===== CTA Button\uff08\u653e\u5927+\u6e10\u53d8\u7ea2+\u767d\u5b57\uff09 ===== *\/\n  .ky-card-actions{margin-top:auto;padding:12px 14px}\n  .ky-link{\n    display:inline-flex;align-items:center;justify-content:center;text-decoration:none;\n    color:#fff !important;                              \/* \u5f3a\u5236\u767d\u5b57 *\/\n    background:linear-gradient(180deg,#B5220E,#981d0c); \/* \u5de5\u4e1a\u7ea2\u6e10\u53d8 *\/\n    border-radius:999px;padding:14px 16px;               \/* \u653e\u5927 *\/\n    font-weight:700;font-size:15px;width:100%;text-align:center;\n    box-shadow:0 4px 10px rgba(181,34,14,.15);transition:transform .12s ease\n  }\n  .ky-card:hover .ky-link{transform:translateY(-1px)}\n<\/style>\n\n\n  <!-- \u4e3b\u6807\u9898 -->\n  <div class=\"ky-sec-head\">\n    <h2>Select Your AC SPD<\/h2>\n    <p>Use tabs and filters to find the right model. Click a card to open the product detail page.<\/p>\n  <\/div>\n\n  <!-- \u9009\u9879\u5361 -->\n<div class=\"ky-tabs\" id=\"acspd-tabs\">\n  <button class=\"ky-tab\" data-tab=\"T1\">T1<\/button>\n  <button class=\"ky-tab active\" data-tab=\"T1+2\">T1+2<\/button> <!-- \u9ed8\u8ba4\u6fc0\u6d3b -->\n  <button class=\"ky-tab\" data-tab=\"T2\">T2<\/button>\n  <button class=\"ky-tab\" data-tab=\"T2+T3\">T2+T3<\/button>\n  <button class=\"ky-tab\" data-tab=\"T3\">T3<\/button>\n<\/div>\n\n  <!-- ====== \u9762\u677f\uff1aT1 ====== -->\n  <div class=\"ky-tab-panel\" data-tab-panel=\"T1\">\n    <h3 class=\"ky-subhead\">Type 1 AC SPD<\/h3>\n    <div class=\"ky-grid\">\n      <!-- T1 \u2014 6 \u5361\u7247 -->\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"1P\">\n        <a href=\"\/product\/type-1-surge-protection-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-1P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-1P<\/div>\n          <div class=\"ky-card-meta\">type 1 surge protection device<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">1P<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/type-1-surge-protection-device\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"2P\">\n        <a href=\"\/product\/type-1-surge-protective-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-2P<\/div>\n          <div class=\"ky-card-meta\">type 1 surge protective device<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/type-1-surge-protective-device\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"3P\">\n        <a href=\"\/product\/ac-surge-protection-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-3P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-3P<\/div>\n          <div class=\"ky-card-meta\">ac surge protection device<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">3P<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/ac-surge-protection-device\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"4P\">\n        <a href=\"\/product\/surge-protection-device-for-electrical-panel\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-4P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-4P<\/div>\n          <div class=\"ky-card-meta\">surge protection device for electrical panel<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">4P<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/surge-protection-device-for-electrical-panel\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"3+1\">\n        <a href=\"\/product\/240v-surge-protection-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-3+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-3+1<\/div>\n          <div class=\"ky-card-meta\">240v surge protection device<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">3+1<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/240v-surge-protection-device\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"ky-card\" data-type=\"T1\" data-poles=\"1+1\">\n        <a href=\"\/product\/type-1-surge-protective-device-1+1\/\" class=\"ky-card-img\" aria-label=\"KYSPD-25T1-1+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n        <div class=\"ky-card-body\">\n          <div class=\"ky-card-model\">KYSPD-25T1-1+1<\/div>\n          <div class=\"ky-card-meta\">type 1 surge protective device 1+1<\/div>\n          <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1<\/span><span class=\"ky-tag\">1+1<\/span><\/div>\n        <\/div>\n        <div class=\"ky-card-actions\">\n          <a class=\"ky-link\" href=\"\/product\/type-1-surge-protective-device-1+1\/\">Specs &amp; Wiring<\/a>\n        <\/div>\n      <\/article>\n    <\/div>\n  <\/div>\n\n  <!-- ====== \u9762\u677f\uff1aT1+2 ====== -->\n  <div class=\"ky-tab-panel\" data-tab-panel=\"T1+2\" hidden>\n    <h3 class=\"ky-subhead\">Type 1+2 AC SPD<\/h3>\n\n<!-- \u524d 6 \u4e2a\u5361\u7247 -->\n<div class=\"ky-grid\">\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"1P\">\n    <a href=\"type-12-surge-protective-device-n-pe\/\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-1P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-1P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">1P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-1-2-surge-protection-device-7-1p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"2P\">\n    <a href=\"\/product\/type-1-2-surge-protective-device-2p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-2P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"type-1-2-surge-protective-device-2p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"3P\">\n    <a href=\"\/product\/type-1-2-surge-protection-device-7-3p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-3P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-3P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">3P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-1-2-surge-protection-device-7-3p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"4P\">\n    <a href=\"\/product\/type-1-2-surge-protection-device-4p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-4P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-4P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">4P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-1-2-surge-protection-device-7-4p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"3+1\">\n    <a href=\"\/product\/surge-protection-device-for-elevators\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-3+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-3+1<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">3+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/surge-protection-device-for-elevators\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"1+1\">\n    <a href=\"\/product\/type-1-2-surge-protection-device-single-phase\/\" class=\"ky-card-img\" aria-label=\"KYSPD-7T1+2-1+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-7T1+2-1+1<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 7kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">1+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-1-2-surge-protection-device-7-1+1\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n<\/div>\n\n<!-- \u540e 6 \u4e2a\u5361\u7247 -->\n<div class=\"ky-grid\">\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"1P\">\n    <a href=\"\/product\/type-1-2-surge-protective-device-1p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-1P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-1P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">1P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"type-1-2-surge-protective-device-1p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"2P\">\n    <a href=\"\/product\/type-2-surge-protective-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-2P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protective-device\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"3P\">\n    <a href=\"https:\/\/cnkuangya.com\/product\/type-1-2-surge-protection-device-3p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-3P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-3P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">3P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"https:\/\/cnkuangya.com\/product\/type-1-2-surge-protection-device-3p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"4P\">\n    <a href=\"https:\/\/cnkuangya.com\/product\/type-1-2-surge-protective-device-4p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-4P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-4P<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">4P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"https:\/\/cnkuangya.com\/product\/type-1-2-surge-protective-device-4p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"3+1\">\n    <a href=\"\/product\/surge-protection-device-for-electrical-panel-kyspd-12-5t12-31\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-3+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-3+1<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">3+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/surge-protection-device-for-electrical-panel-kyspd-12-5t12-31\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <article class=\"ky-card\" data-type=\"T1+2\" data-poles=\"1+1\">\n    <a href=\"https:\/\/cnkuangya.com\/product\/type-12-surge-protective-device-n-pe\/\" class=\"ky-card-img\" aria-label=\"KYSPD-12.5T1+2-1+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-12.5T1+2-1+1<\/div>\n      <div class=\"ky-card-meta\">type 1+2 surge protection device 12.5kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T1+2<\/span><span class=\"ky-tag\">1+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"https:\/\/cnkuangya.com\/product\/type-12-surge-protective-device-n-pe\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n<\/div>\n\n    <!-- \u2705 \u76f4\u63a5\u628a\u201c\u524d6\u4e2aky-grid\u201d\u548c\u201c\u540e6\u4e2aky-grid\u201d\u90fd\u653e\u5230\u8fd9\u4e2a\u9762\u677f\u91cc -->\n  <\/div>\n\n  <!-- ====== \u9762\u677f\uff1aT2 ====== -->\n  <div class=\"ky-tab-panel\" data-tab-panel=\"T2\" hidden>\n    <h3 class=\"ky-subhead\">Type 2 AC SPD<\/h3>\n   <!-- T2 \u526f\u6807\u9898 -->\n<div class=\"ky-grid\">\n  <!-- Card 1 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"1P\">\n    <a href=\"\/product\/type-2-surge-protection-device\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-1P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-1P<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">1P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-1p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 2 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"2P\">\n    <a href=\"\/product\/surge-protective-device-type-2-kyspd-40t2-2p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-2P<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-2p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 3 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"3P\">\n    <a href=\"\/product\/240v-surge-protection-device-kyspd-40t2-3p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-3P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-3P<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">3P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-3p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 4 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"4P\">\n    <a href=\"\/product\/type-2-surge-protection-device-4p-kyspd-40t2-4p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-4P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-4P<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">4P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-4p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 5 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"3+1\">\n    <a href=\"\/product\/surge-protection-device-for-elevators-kyspd-40t2-31\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-3+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-3+1<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">3+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-3+1\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 6 -->\n  <article class=\"ky-card\" data-type=\"T2\" data-poles=\"1+1\">\n    <a href=\"\/product\/type-2-surge-protection-device-n-pe\/\" class=\"ky-card-img\" aria-label=\"KYSPD-40T2-1+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-40T2-1+1<\/div>\n      <div class=\"ky-card-meta\">type 2 surge protection device 40kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2<\/span><span class=\"ky-tag\">1+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-surge-protection-device-40-1+1\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n<\/div>\n\n  <\/div>\n\n  <!-- ====== \u9762\u677f\uff1aT2+3 ====== -->\n  <div class=\"ky-tab-panel\" data-tab-panel=\"T2+T3\" hidden>\n    <h3 class=\"ky-subhead\">Type 2+3 AC SPD<\/h3>\n  <!-- T2+3 \u526f\u6807\u9898 -->\n<div class=\"ky-grid\">\n  <!-- Card 1 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"1P\">\n    <a href=\"\/product\/type-2-3-surge-protection-device-1p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-1P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-1P<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">1P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-3-surge-protection-device-20-1p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 2 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"2P\">\n    <a href=\"\/product\/surge-protection-device-for-electrical-panel-kyspd-20t23-2p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-2P<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-3-surge-protection-device-20-2p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 3 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"3P\">\n    <a href=\"\/product\/type-2-3-surge-protective-device-3p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-3P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-3P<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">3P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-3-surge-protective-device-3p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 4 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"4P\">\n    <a href=\"https:\/\/cnkuangya.com\/product\/ac-surge-protection-device-kyspd-20t23-4p\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-4P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-4P<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">4P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"https:\/\/cnkuangya.com\/product\/ac-surge-protection-device-kyspd-20t23-4p\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 5 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"3+1\">\n    <a href=\"https:\/\/cnkuangya.com\/product\/240v-surge-protection-device-kyspd-20t23-31\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-3+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-3+1<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">3+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"https:\/\/cnkuangya.com\/product\/240v-surge-protection-device-kyspd-20t23-31\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n\n  <!-- Card 6 -->\n  <article class=\"ky-card\" data-type=\"T2+T3\" data-poles=\"1+1\">\n    <a href=\"\/product\/type-2-3-surge-protective-device-for-equipment\/\" class=\"ky-card-img\" aria-label=\"KYSPD-20T2+3-1+1\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-20T2+3-1+1<\/div>\n      <div class=\"ky-card-meta\">type 2+3 surge protection device 20kA<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T2+3<\/span><span class=\"ky-tag\">1+1<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/type-2-3-surge-protection-device-20-1+1\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n<\/div>\n\n  <\/div>\n\n  <!-- ====== \u9762\u677f\uff1aT3 ====== -->\n  <div class=\"ky-tab-panel\" data-tab-panel=\"T3\" hidden>\n    <h3 class=\"ky-subhead\">Type 3 AC SPD<\/h3>\n<div class=\"ky-grid\">\n  <!-- Only one card -->\n  <article class=\"ky-card\" data-type=\"T3\" data-poles=\"2P\">\n    <a href=\"\/product\/surge-protective-device-type-3\/\" class=\"ky-card-img\" aria-label=\"KYSPD-T3-2P\" style=\"background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/bannerproduct.png')\"><\/a>\n    <div class=\"ky-card-body\">\n      <div class=\"ky-card-model\">KYSPD-T3-2P<\/div>\n      <div class=\"ky-card-meta\">surge protective device type 3<\/div>\n      <div class=\"ky-card-tags\"><span class=\"ky-tag\">T3<\/span><span class=\"ky-tag\">2P<\/span><\/div>\n    <\/div>\n    <div class=\"ky-card-actions\">\n      <a class=\"ky-link\" href=\"\/product\/surge-protective-device-type-3\/\">Specs &amp; Wiring<\/a>\n    <\/div>\n  <\/article>\n<\/div>\n\n  <\/div>\n\n  <script>\n    (function(){\n      \/\/ Tabs\n      const tabs = document.querySelectorAll('#acspd-tabs .ky-tab');\n      const panels = document.querySelectorAll('#acspd-selector .ky-tab-panel');\n      function activateTab(key){\n        tabs.forEach(t=>t.classList.toggle('active', t.getAttribute('data-tab')===key));\n        panels.forEach(p=>{\n          const show = p.getAttribute('data-tab-panel')===key;\n          if(show){ p.removeAttribute('hidden'); } else { p.setAttribute('hidden',''); }\n        });\n        \/\/ reset filters to \"All Poles\" on tab change\n        document.querySelectorAll('#filter-bar .ky-chip[data-group=\"poles\"]').forEach(c=>c.classList.remove('active'));\n        const all = document.querySelector('#filter-bar .ky-chip[data-group=\"poles\"][data-value=\"all\"]');\n        if(all){ all.classList.add('active'); }\n        filterWithinActivePanel('all');\n      }\n      tabs.forEach(t=>{\n        t.addEventListener('click',()=>activateTab(t.getAttribute('data-tab')));\n      });\n\n      \/\/ Filters (apply only to active panel)\n      const chips = document.querySelectorAll('#filter-bar .ky-chip');\n      chips.forEach(ch=>{\n        ch.addEventListener('click',()=>{\n          if(ch.getAttribute('data-group')!=='poles') return;\n          document.querySelectorAll('#filter-bar .ky-chip[data-group=\"poles\"]').forEach(c=>c.classList.remove('active'));\n          ch.classList.add('active');\n          const val = ch.getAttribute('data-value');\n          filterWithinActivePanel(val);\n        });\n      });\n      function getActivePanel(){\n        return document.querySelector('#acspd-selector .ky-tab-panel:not([hidden])');\n      }\n      function filterWithinActivePanel(polesVal){\n        const panel = getActivePanel();\n        if(!panel) return;\n        const cards = panel.querySelectorAll('.ky-card');\n        cards.forEach(card=>{\n          const p = card.getAttribute('data-poles');\n          const okPoles = (polesVal==='all' || p===polesVal);\n          card.style.display = okPoles ? 'flex' : 'none';\n        });\n      }\n\n      \/\/ Init\n      activateTab('T1');\n    })();\n  <\/script>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-f06b66e\" data-block-id=\"f06b66e\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-f06b66e-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-12a0ebb\" data-v=\"4\" data-block-id=\"12a0ebb\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-12a0ebb-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-12a0ebb-inner-blocks\">\n<!-- ===== SEC3 \u2014 Protection Stack \/ Working Principle ===== -->\n<section id=\"acspd-protection-stack\" aria-label=\"SPD Protection Stack\">\n  <style>\n    #acspd-protection-stack{padding:64px 16px;background:#fff}\n    .ps-wrap{max-width:1200px;margin:0 auto}\n    .ps-head{text-align:center;margin-bottom:22px}\n    .ps-head h2{margin:0 0 10px;font-size:32px;font-weight:900;color:#111827}\n    .ps-head p{margin:0;color:#4B5563}\n\n    \/* \u7b49\u9ad8\u7f51\u683c\uff1a\u5361\u7247\u62c9\u6ee1\u540c\u4e00\u9ad8\u5ea6\uff0cCTA \u8d34\u5e95\u5bf9\u9f50 *\/\n    .ps-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:24px}\n    @media (max-width:1200px){.ps-grid{grid-template-columns:repeat(3,1fr)}}\n    @media (max-width:690px){.ps-grid{grid-template-columns:repeat(2,1fr)}}\n    .ps-card{border:1px solid #E5E7EB;border-radius:14px;background:#fff;\n             display:flex;flex-direction:column;min-height:420px} \/* \u7edf\u4e00\u6700\u5c0f\u9ad8\u5ea6 *\/\n    .ps-top{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid #F3F4F6;background:#F9FAFB}\n    .ps-kicker{font-size:12px;font-weight:700;color:#B5220E;text-transform:uppercase;letter-spacing:.3px}\n    .ps-title{font-weight:800;color:#111827}\n    .ps-body{padding:14px 16px;display:flex;flex-direction:column;gap:8px;color:#374151;flex:1} \/* \u5360\u6ee1\u5269\u4f59\u9ad8\u5ea6 *\/\n    .ps-body ul{margin:0;padding-left:18px}\n    .ps-body li{margin:4px 0}\n    .ps-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}\n    .ps-tag{font-size:12px;border:1px solid #E5E7EB;border-radius:999px;padding:2px 8px;color:#4B5563;background:#fff}\n    .ps-ico{width:28px;height:28px;flex:0 0 28px;border-radius:6px;background:#111827;display:grid;place-items:center}\n    .ps-ico svg{width:16px;height:16px;fill:#fff}\n\n    \/* CTA \u533a\u57df\uff1a\u8d34\u5e95\uff1b\u7edf\u4e00\u9ad8\u5ea6\u6309\u94ae *\/\n    .ps-cta{margin-top:auto;display:flex;gap:10px;flex-wrap:wrap}\n    .ps-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;\n             height:40px;padding:0 14px;border-radius:999px;font-weight:700;font-size:14px}\n    .ps-link.primary{background:#B5220E;color:#fff}\n    .ps-link.ghost{border:1px solid #E5E7EB;color:#111827;background:#fff}\n\n    \/* \u5168\u5c40\u8fd4\u56de\u6309\u94ae\uff08\u5361\u7247\u5916\uff09 *\/\n    .ps-backbar{display:flex;justify-content:center;margin-top:22px}\n    .ps-back{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 16px;\n             border:1px solid #E5E7EB;border-radius:999px;background:#fff;color:#111827;font-weight:700}\n  <\/style>\n\n  <div class=\"ps-wrap\">\n    <div class=\"ps-head\">\n      <h2>Protection Stack \u2013 How It Works<\/h2>\n      <p>Each SPD Type is designed for different surge waveforms and installation points. Combined, they create a layered protection system from main distribution to terminal equipment.<\/p>\n    <\/div>\n\n    <div class=\"ps-grid\">\n      <!-- Type 1 -->\n      <article class=\"ps-card\">\n        <div class=\"ps-top\">\n          <span class=\"ps-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M13 2L3 14h7l-1 8 10-12h-7l1-8z\"\/><\/svg><\/span>\n          <div><div class=\"ps-kicker\">TYPE 1<\/div><div class=\"ps-title\">Main Service Entrance<\/div><\/div>\n        <\/div>\n        <div class=\"ps-body\">\n          <ul>\n            <li>Waveform: <b>10\/350 \u03bcs<\/b>, high-energy lightning currents<\/li>\n            <li>Placement: Main distribution board \/ service entrance<\/li>\n            <li>Function: Diverts direct lightning surge energy<\/li>\n          <\/ul>\n          <div class=\"ps-meta\"><span class=\"ps-tag\">Iimp<\/span><span class=\"ps-tag\">Class I<\/span><\/div>\n          <div class=\"ps-cta\"><a class=\"ps-link primary\" href=\"#acspd-selector\" onclick=\"activateTab&#038;&#038;activateTab('T1');return false;\">View Type 1<\/a><\/div>\n        <\/div>\n      <\/article>\n\n      <!-- Type 1+2 -->\n      <article class=\"ps-card\">\n        <div class=\"ps-top\">\n          <span class=\"ps-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M12 2l9 4-9 4-9-4 9-4zM12 10l9 4-9 4-9-4 9-4z\"\/><\/svg><\/span>\n          <div><div class=\"ps-kicker\">TYPE 1+2<\/div><div class=\"ps-title\">Combined Protection<\/div><\/div>\n        <\/div>\n        <div class=\"ps-body\">\n          <ul>\n            <li>Waveforms: <b>10\/350 \u03bcs<\/b> + <b>8\/20 \u03bcs<\/b><\/li>\n            <li>Placement: Sub-distribution or main panels<\/li>\n            <li>Function: Hybrid protection for lightning and switching surges<\/li>\n          <\/ul>\n          <div class=\"ps-meta\"><span class=\"ps-tag\">IEC Class I+II<\/span><span class=\"ps-tag\">Iimp \/ In<\/span><\/div>\n          <div class=\"ps-cta\"><a class=\"ps-link primary\" href=\"#acspd-selector\" onclick=\"activateTab&#038;&#038;activateTab('T1+2');return false;\">View Type 1+2<\/a><\/div>\n        <\/div>\n      <\/article>\n\n      <!-- Type 2 -->\n      <article class=\"ps-card\">\n        <div class=\"ps-top\">\n          <span class=\"ps-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><circle cx=\"12\" cy=\"12\" r=\"10\"\/><\/svg><\/span>\n          <div><div class=\"ps-kicker\">TYPE 2<\/div><div class=\"ps-title\">Sub-Distribution Level<\/div><\/div>\n        <\/div>\n        <div class=\"ps-body\">\n          <ul>\n            <li>Waveform: <b>8\/20 \u03bcs<\/b><\/li>\n            <li>Placement: Distribution boards downstream<\/li>\n            <li>Function: Handles switching and indirect lightning surges<\/li>\n          <\/ul>\n          <div class=\"ps-meta\"><span class=\"ps-tag\">IEC Class II<\/span><span class=\"ps-tag\">In \/ Imax<\/span><\/div>\n          <div class=\"ps-cta\"><a class=\"ps-link primary\" href=\"#acspd-selector\" onclick=\"activateTab&#038;&#038;activateTab('T2');return false;\">View Type 2<\/a><\/div>\n        <\/div>\n      <\/article>\n\n      <!-- Type 2+3 -->\n      <article class=\"ps-card\">\n        <div class=\"ps-top\">\n          <span class=\"ps-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M4 4h16v16H4z\"\/><\/svg><\/span>\n          <div><div class=\"ps-kicker\">TYPE 2+3<\/div><div class=\"ps-title\">Enhanced Distribution<\/div><\/div>\n        <\/div>\n        <div class=\"ps-body\">\n          <ul>\n            <li>Waveforms: <b>8\/20 \u03bcs<\/b> + <b>ring wave<\/b><\/li>\n            <li>Placement: Final distribution, near sensitive loads<\/li>\n            <li>Function: Combines mid-level and fine protection<\/li>\n          <\/ul>\n          <div class=\"ps-meta\"><span class=\"ps-tag\">IEC Class II+III<\/span><span class=\"ps-tag\">In \/ Up<\/span><\/div>\n          <div class=\"ps-cta\"><a class=\"ps-link primary\" href=\"#acspd-selector\" onclick=\"activateTab&#038;&#038;activateTab('T2+T3');return false;\">View Type 2+3<\/a><\/div>\n        <\/div>\n      <\/article>\n\n      <!-- Type 3 -->\n      <article class=\"ps-card\">\n        <div class=\"ps-top\">\n          <span class=\"ps-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M12 4l8 16H4z\"\/><\/svg><\/span>\n          <div><div class=\"ps-kicker\">TYPE 3<\/div><div class=\"ps-title\">Terminal Device Level<\/div><\/div>\n        <\/div>\n        <div class=\"ps-body\">\n          <ul>\n            <li>Waveform: <b>Combination \/ Ring<\/b><\/li>\n            <li>Placement: Near terminal devices, sockets, equipment<\/li>\n            <li>Function: Protects sensitive electronics from residual surges<\/li>\n          <\/ul>\n          <div class=\"ps-meta\"><span class=\"ps-tag\">IEC Class III<\/span><span class=\"ps-tag\">Up<\/span><\/div>\n          <div class=\"ps-cta\"><a class=\"ps-link primary\" href=\"#acspd-selector\" onclick=\"activateTab&#038;&#038;activateTab('T3');return false;\">View Type 3<\/a><\/div>\n        <\/div>\n      <\/article>\n    <\/div>\n<!-- Footnote outside cards -->\n<div class=\"ps-footnote\">\n  IEC standard reference: \n  <a href=\"https:\/\/en.wikipedia.org\/wiki\/IEC_61643\" target=\"_blank\" rel=\"noopener\">IEC 61643-11<\/a> \n  (test classes I \/ II \/ III, parameters such as <i>Iimp<\/i>, <i>In<\/i>, <i>Imax<\/i>, <i>Up<\/i>).\n<\/div>\n\n    <!-- \u5168\u5c40 Back to Selector\uff08\u5361\u7247\u5916\uff0c\u6574\u9f50\uff09 -->\n    <div class=\"ps-backbar\">\n      <a class=\"ps-back\" href=\"#acspd-selector\">Back to Selector<\/a>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-53d0d9d\" data-block-id=\"53d0d9d\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-53d0d9d-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-971a269\" data-v=\"4\" data-block-id=\"971a269\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-971a269-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-971a269-inner-blocks\">\n<!-- ===== SEC4 \u2014 Key Features (minimal, only one real link) ===== -->\n<section id=\"acspd-features\" aria-label=\"AC SPD Features\">\n  <style>\n    #acspd-features{padding:56px 16px;background:#fff}\n    .lf-wrap{max-width:1200px;margin:0 auto}\n    .lf-head{margin-bottom:18px;text-align:center}\n    .lf-head h2{margin:0 0 8px;font-size:28px;font-weight:800;color:#111827}\n    .lf-head p{margin:0;color:#6B7280;font-size:14px}\n\n    .lf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:12px}\n    @media (max-width:720px){.lf-grid{grid-template-columns:1fr}}\n\n    .lf-item{\n      border:1px solid #E5E7EB;border-radius:12px;background:#fff;\n      padding:14px 16px;display:flex;gap:12px;align-items:flex-start;transition:.18s\n    }\n    .lf-item:hover{border-color:#F1CAC4;box-shadow:0 2px 10px rgba(0,0,0,.04)}\n    .lf-item::before{\n      content:\"\";width:3px;border-radius:2px;background:#B5220E;display:block;align-self:stretch;opacity:.9\n    }\n\n    .lf-body{flex:1;min-width:0}\n    .lf-title{margin:0 0 6px;font-weight:800;color:#111827;font-size:16px;line-height:1.35}\n    .lf-desc{margin:0;color:#374151;font-size:14px;line-height:1.55}\n\n\n    \/* \u5e95\u90e8 CTA\uff1a\u4ec5\u8fd4\u56de\u9009\u578b\uff08\u4e0e\u4e0a\u65b9\u98ce\u683c\u4e00\u81f4\uff09 *\/\n    .lf-cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}\n    .lf-btn{\n      display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 14px;\n      border-radius:990px;font-weight:800;font-size:14px\n    }\n    .lf-btn.primary{background:#B5220E;color:#fff}\n  <\/style>\n\n  <div class=\"lf-wrap\">\n    <div class=\"lf-head\">\n      <h2>Key Features &#038; Benefits<\/h2>\n      <p>Concise highlights aligned with the selector above\u2014clean and practical.<\/p>\n    <\/div>\n\n    <div class=\"lf-grid\">\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">Replaceable plug-in modules<\/h3>\n          <p class=\"lf-desc\">Hot-swap cartridges reduce downtime; base wiring remains untouched.<\/p>\n        <\/div>\n      <\/article>\n\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">Thermal &#038; overload disconnector<\/h3>\n          <p class=\"lf-desc\">Built-in thermal links \/ short-circuit cut-off ensure safe end-of-life behavior.<\/p>\n        <\/div>\n      <\/article>\n\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">Status window &#038; remote contact<\/h3>\n          <p class=\"lf-desc\">Front indication plus optional NC\/NO terminals for panel monitoring.<\/p>\n        <\/div>\n      <\/article>\n\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">High SCCR coordination<\/h3>\n          <p class=\"lf-desc\">Works with upstream fuses\/MCBs for high short-circuit withstand.<\/p>\n\n        <\/div>\n      <\/article>\n\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">Standards compliance<\/h3>\n          <p class=\"lf-desc\">Designed in line with IEC 61643-11 (Class I\/II\/III); UL 1449 per model.<\/p>\n        <\/div>\n      <\/article>\n\n      <article class=\"lf-item\">\n        <div class=\"lf-body\">\n          <h3 class=\"lf-title\">Low residual voltage (Up)<\/h3>\n          <p class=\"lf-desc\">Optimized clamping for PLCs, drives, and other sensitive electronics.<\/p>\n        <\/div>\n      <\/article>\n    <\/div>\n\n    <div class=\"lf-cta\">\n      <a class=\"lf-btn primary\" href=\"#acspd-selector\">Back to Selector<\/a>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-66d59ee\" data-block-id=\"66d59ee\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-66d59ee-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-c7a3258\" data-v=\"4\" data-block-id=\"c7a3258\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-c7a3258-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-c7a3258-inner-blocks\">\n<!-- ===== SEC5 \u2014 Applications & Use Cases ===== -->\n<section id=\"sec-apps\" class=\"acspd-sec5\" aria-label=\"Applications &#038; Use Cases\">\n  <style>\n    .acspd-sec5{\n      position:relative;padding:56px 0;color:#111827;\n      background:#f8f8f8;\n    }\n    .acspd-sec5::before{\n      content:\"\";position:absolute;inset:0;\n      background-image:url('https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/SEC5BANNER.png');\n      background-size:cover;background-position:center;\n      filter:grayscale(10%) contrast(105%);\n      opacity:.18; \/* \u8f7b\u906e\u7f69\uff0c\u4fdd\u8bc1\u53ef\u8bfb\u6027 *\/\n    }\n    .acspd-sec5 .wrap{position:relative;max-width:1200px;margin:0 auto;padding:0 16px}\n    .acspd-sec5 .head{margin-bottom:20px}\n    .acspd-sec5 .title{font-size:28px;line-height:1.2;margin:0 0 8px}\n    .acspd-sec5 .desc{margin:0;color:#4b5563}\n\n    .acspd-sec5 .grid{\n      display:grid;gap:16px;margin-top:16px;\n      grid-template-columns:repeat(3,1fr);\n    }\n    @media (max-width:980px){ .acspd-sec5 .grid{grid-template-columns:repeat(2,1fr)} }\n    @media (max-width:640px){ .acspd-sec5 .grid{grid-template-columns:1fr} .acspd-sec5 .title{font-size:22px} }\n\n    .acspd-sec5 .card{\n      background:#fff;border:1px solid #e5e7eb;border-radius:16px;\n      padding:16px;display:flex;flex-direction:column;gap:10px;\n      transition:transform .15s ease, box-shadow .15s ease;\n    }\n    .acspd-sec5 .card:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.06)}\n\n    .acspd-sec5 .cap{display:flex;align-items:center;gap:10px}\n    .acspd-sec5 .dot{\n      width:10px;height:10px;border-radius:999px;background:#b91c1c;flex:0 0 auto\n    }\n    .acspd-sec5 .h4{margin:0;font-size:16px;line-height:1.35;font-weight:700}\n    .acspd-sec5 .copy{margin:0;color:#374151;font-size:14px}\n\n    .acspd-sec5 .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}\n    .acspd-sec5 .tag{\n      display:inline-block;border:1px solid #e5e7eb;background:#fff;border-radius:999px;\n      padding:4px 10px;font-size:12px;line-height:1;color:#111827\n    }\n    .acspd-sec5 .type{border-color:#b91c1c;color:#b91c1c}\n\n    .acspd-sec5 .foot{\n      display:flex;gap:12px;margin-top:16px;flex-wrap:wrap\n    }\n    .acspd-sec5 .btn{\n      appearance:none;border:1px solid #b91c1c;background:#b91c1c;color:#fff;\n      border-radius:999px;padding:10px 16px;cursor:pointer;font-size:14px;line-height:1\n    }\n    .acspd-sec5 .btn.alt{background:#fff;color:#b91c1c}\n  <\/style>\n\n  <div class=\"wrap\">\n    <div class=\"head\">\n      <h3 class=\"title\">Applications &amp; Use Cases<\/h3>\n      <p class=\"desc\">Typical deployment of AC SPDs across distribution levels. Use this as a quick guide to select the right Type and poles.<\/p>\n    <\/div>\n\n    <div class=\"grid\" role=\"list\">\n      <!-- Card 1 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Main Switchboard \/ Service Entrance<\/h4><\/div>\n        <p class=\"copy\">Installed at the service entrance to handle high-energy surges from lightning currents and external lines.<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 1<\/span>\n          <span class=\"tag\">1P \/ 2P \/ 3P \/ 4P<\/span>\n          <span class=\"tag\">10\/350&nbsp;\u00b5s capable<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 2 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Sub-Distribution Panels<\/h4><\/div>\n        <p class=\"copy\">Layered protection downstream of the main board to reduce residual surges and coordinate with upstream devices.<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 1+2<\/span>\n          <span class=\"tag\">2P \/ 3P \/ 4P<\/span>\n          <span class=\"tag\">10\/350 + 8\/20&nbsp;\u00b5s<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 3 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Final Distribution \/ Floor Panels<\/h4><\/div>\n        <p class=\"copy\">Placed near final distribution to clamp switching and induced surges with low residual voltage (Up).<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 2<\/span>\n          <span class=\"tag\">1P \/ 2P \/ 3P \/ 4P<\/span>\n          <span class=\"tag\">8\/20&nbsp;\u00b5s<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 4 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Terminal Loads (PLCs, Drives, Sockets)<\/h4><\/div>\n        <p class=\"copy\">Close to sensitive equipment for fine protection; used as the last stage in a coordinated system.<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 3<\/span>\n          <span class=\"tag\">1P<\/span>\n          <span class=\"tag\">Combination \/ Ring<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 5 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Industrial Facilities \/ Data Centers \/ EV Charging<\/h4><\/div>\n        <p class=\"copy\">High availability scenarios with coordinated stages from service entrance to terminal devices.<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 1 \u2192 1+2 \u2192 2 \u2192 3<\/span>\n          <span class=\"tag\">Coordination<\/span>\n          <span class=\"tag\">Low Up<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 6 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Residential &amp; Commercial Buildings<\/h4><\/div>\n        <p class=\"copy\">From main incomer to apartment\/floor boards and end devices, choose staged protection by risk level.<\/p>\n        <div class=\"tags\">\n          <span class=\"tag type\">Type 1 \/ 1+2 \/ 2 \/ 3<\/span>\n          <span class=\"tag\">Layered protection<\/span>\n          <span class=\"tag\">SCCR coordination<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n\n <div class=\"foot\">\n  <button class=\"btn\" type=\"button\" onclick=\"location.href='#acspd-selector'\">Back to Selector<\/button>\n  <button class=\"btn\" type=\"button\" style=\"background:#b91c1c;color:#fff;\"\n          onclick=\"location.href='\/contact-us\/'\">\n    Contact Us for Quote\n  <\/button>\n<\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-8a26306\" data-block-id=\"8a26306\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-8a26306-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0c63e90\" data-v=\"4\" data-block-id=\"0c63e90\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0c63e90-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0c63e90-inner-blocks\">\n<!-- ===== SEC6 \u2014 Parameters & Model Summary ===== -->\n<section id=\"sec-params\" class=\"acspd-sec6\" aria-label=\"AC SPD Parameters &#038; Model Summary\">\n  <style>\n    .acspd-sec6{padding:48px 0;background:#fff}\n    .acspd-sec6 .wrap{max-width:1200px;margin:0 auto;padding:0 16px}\n    .acspd-sec6 .head{margin-bottom:20px}\n    .acspd-sec6 .title{font-size:28px;line-height:1.2;margin:0 0 8px}\n    .acspd-sec6 .desc{color:#4b5563;margin:0}\n\n    \/* Table container *\/\n    .acspd-sec6 .table-wrap{\n      background:#fafafa;border:1px solid #e5e7eb;border-radius:16px;\n      padding:16px;overflow:auto\n    }\n    .acspd-sec6 table{width:100%;border-collapse:separate;border-spacing:0;min-width:880px}\n    .acspd-sec6 th,.acspd-sec6 td{\n      padding:12px 14px;border-bottom:1px solid #e5e7eb;text-align:left;font-size:14px\n    }\n    .acspd-sec6 th{\n      position:sticky;top:0;background:#fef2f2;color:#b91c1c;font-weight:600;\n      border-bottom:1px solid #fca5a5\n    }\n    .acspd-sec6 tr:last-child td{border-bottom:none}\n    .acspd-sec6 .tag{\n      display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:2px 10px;\n      font-size:12px;background:#fff;vertical-align:middle\n    }\n    .acspd-sec6 .app{color:#374151}\n    .acspd-sec6 .good{font-weight:600}\n    .acspd-sec6 .note{color:#6b7280;font-size:12px}\n    .acspd-sec6 .cta-row{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}\n    .acspd-sec6 .btn{\n      appearance:none;border:1px solid #b91c1c;background:#b91c1c;color:#fff;border-radius:999px;\n      padding:10px 16px;cursor:pointer;font-size:14px;line-height:1\n    }\n    .acspd-sec6 .btn.alt{background:#fff;color:#b91c1c}\n    @media (max-width:690px){\n      .acspd-sec6 .title{font-size:22px}\n    }\n  <\/style>\n\n  <div class=\"wrap\">\n    <div class=\"head\">\n      <h3 class=\"title\">Parameters &amp; Model Summary<\/h3>\n      <p class=\"desc\">Quick comparison of key AC SPD parameters. Replace the sample rows with your confirmed data. Keep the structure to stay consistent with the selector above.<\/p>\n    <\/div>\n\n    <div class=\"table-wrap\" role=\"region\" aria-label=\"AC SPD Parameter Table\">\n      <table aria-describedby=\"acspd-param-notes\">\n        <thead>\n          <tr>\n            <th>Model<\/th>\n            <th>Type<\/th>\n            <th>Poles<\/th>\n            <th>Uc (V)<\/th>\n            <th>In \/ Imax (kA)<\/th>\n            <th>Up (kV)<\/th>\n            <th>Module<\/th>\n            <th>Remote Contact<\/th>\n            <th>Typical Placement<\/th>\n            <th>Notes<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <!-- === SAMPLE ROWS \u2014 replace with real data === -->\n          <tr>\n            <td><span class=\"good\">KYSPD-15T1-40<\/span><\/td>\n            <td><span class=\"tag\">Type 1<\/span><\/td>\n            <td>1P<\/td>\n            <td>275<\/td>\n            <td>20 \/ 40<\/td>\n            <td>1.5<\/td>\n            <td>Replaceable<\/td>\n            <td>Optional<\/td>\n            <td class=\"app\">Main service entrance<\/td>\n            <td class=\"note\">10\/350&nbsp;\u00b5s capable<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"good\">KYSPD-40T1+2-3P<\/span><\/td>\n            <td><span class=\"tag\">Type 1+2<\/span><\/td>\n            <td>3P<\/td>\n            <td>385<\/td>\n            <td>20 \/ 40<\/td>\n            <td>1.3<\/td>\n            <td>Replaceable<\/td>\n            <td>With dry contact<\/td>\n            <td class=\"app\">Sub-distribution boards<\/td>\n            <td class=\"note\">Combined 10\/350 + 8\/20&nbsp;\u00b5s<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"good\">KYSPD-40T2-4P<\/span><\/td>\n            <td><span class=\"tag\">Type 2<\/span><\/td>\n            <td>4P<\/td>\n            <td>385<\/td>\n            <td>20 \/ 40<\/td>\n            <td>1.2<\/td>\n            <td>Replaceable<\/td>\n            <td>Optional<\/td>\n            <td class=\"app\">Final distribution \/ floor panels<\/td>\n            <td class=\"note\">8\/20&nbsp;\u00b5s<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"good\">KYSPD-20T3-1P<\/span><\/td>\n            <td><span class=\"tag\">Type 3<\/span><\/td>\n            <td>1P<\/td>\n            <td>275<\/td>\n            <td>5 \/ 10<\/td>\n            <td>0.9<\/td>\n            <td>Replaceable<\/td>\n            <td>\u2014<\/td>\n            <td class=\"app\">Terminal devices \/ sockets<\/td>\n            <td class=\"note\">Combination \/ ring wave<\/td>\n          <\/tr>\n          <!-- === \/SAMPLE ROWS === -->\n        <\/tbody>\n      <\/table>\n      <div id=\"acspd-param-notes\" class=\"note\" style=\"margin-top:8px;\">\n        * Replace Uc \/ In \/ Imax \/ Up with final values; keep units consistent.  \n        * \u201cModule\u201d indicates plug-in replaceable design; \u201cRemote Contact\u201d for status signaling.\n      <\/div>\n    <\/div>\n\n    <div class=\"cta-row\">\n      <button class=\"btn\" type=\"button\">Specs &amp; Wiring<\/button>\n      <button class=\"btn alt\" type=\"button\" onclick=\"location.href='#sec-apps'\">Back to Applications<\/button>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-e45dbed\" data-block-id=\"e45dbed\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-e45dbed-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-697c3d5\" data-v=\"4\" data-block-id=\"697c3d5\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-697c3d5-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-697c3d5-inner-blocks\">\n<!-- ===== SEC7 \u2014 Installation & Wiring Topologies ===== -->\n<section id=\"sec-wiring\" class=\"acspd-sec7\" aria-label=\"Installation &#038; Wiring Topologies\">\n  <style>\n    .acspd-sec7{position:relative;padding:56px 0;background:#ffffff;color:#111827}\n    .acspd-sec7 .wrap{max-width:1200px;margin:0 auto;padding:0 16px}\n    .acspd-sec7 .head{margin-bottom:20px}\n    .acspd-sec7 .title{font-size:28px;line-height:1.2;margin:0 0 8px}\n    .acspd-sec7 .desc{margin:0;color:#4b5563}\n\n    .acspd-sec7 .grid{display:grid;gap:16px;margin-top:16px;grid-template-columns:repeat(3,1fr)}\n    @media (max-width:980px){.acspd-sec7 .grid{grid-template-columns:repeat(2,1fr)}}\n    @media (max-width:640px){.acspd-sec7 .grid{grid-template-columns:1fr}.acspd-sec7 .title{font-size:22px}}\n\n    .acspd-sec7 .card{\n      background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px;\n      display:flex;flex-direction:column;gap:12px;transition:transform .15s ease,box-shadow .15s ease\n    }\n    .acspd-sec7 .card:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.06)}\n    .acspd-sec7 .cap{display:flex;align-items:center;gap:10px}\n    .acspd-sec7 .dot{width:10px;height:10px;border-radius:999px;background:#b91c1c;flex:0 0 auto}\n    .acspd-sec7 .h4{margin:0;font-size:16px;line-height:1.35;font-weight:700}\n    .acspd-sec7 .copy{margin:0;color:#374151;font-size:14px}\n    .acspd-sec7 .tags{display:flex;flex-wrap:wrap;gap:8px}\n    .acspd-sec7 .tag{\n      display:inline-block;border:1px solid #e5e7eb;background:#fff;border-radius:999px;\n      padding:4px 10px;font-size:12px;line-height:1;color:#111827\n    }\n    .acspd-sec7 .type{border-color:#b91c1c;color:#b91c1c}\n\n    .acspd-sec7 .svgbox{\n      background:#fafafa;border:1px dashed #e5e7eb;border-radius:12px;padding:12px\n    }\n    .acspd-sec7 svg{width:100%;height:160px;display:block}\n\n    .acspd-sec7 .note{\n      margin-top:2px;color:#6b7280;font-size:12px\n    }\n    .acspd-sec7 .foot{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}\n    .acspd-sec7 .btn{\n      appearance:none;border:1px solid #b91c1c;background:#b91c1c;color:#fff;\n      border-radius:999px;padding:10px 16px;cursor:pointer;font-size:14px;line-height:1\n    }\n    .acspd-sec7 .btn.alt{background:#fff;color:#b91c1c}\n  <\/style>\n\n  <div class=\"wrap\">\n    <div class=\"head\">\n      <h3 class=\"title\">Installation &amp; Wiring Topologies<\/h3>\n      <p class=\"desc\">Typical AC SPD wiring arrangements at different distribution levels. Replace the schematic placeholders with your final drawings if needed.<\/p>\n    <\/div>\n\n    <div class=\"grid\" role=\"list\">\n      <!-- Card 1: Service Entrance (Type 1) -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\"><\/span><h4 class=\"h4\">Service Entrance \u2014 Type 1<\/h4><\/div>\n        <div class=\"svgbox\" aria-label=\"Service entrance wiring diagram placeholder\">\n          <!-- Inline SVG placeholder -->\n          <svg viewBox=\"0 0 520 180\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n            <rect x=\"12\" y=\"16\" width=\"496\" height=\"148\" rx=\"8\" fill=\"#ffffff\" stroke=\"#e5e7eb\"\/>\n            <!-- Incomer -->\n            <line x1=\"50\" y1=\"40\" x2=\"150\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"50\" y1=\"70\" x2=\"150\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"50\" y1=\"100\" x2=\"150\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <text x=\"50\" y=\"25\" font-size=\"12\" fill=\"#374151\">Incomer (L1\/L2\/L3\/N)<\/text>\n            <!-- SPD -->\n            <rect x=\"190\" y=\"30\" width=\"60\" height=\"80\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/>\n            <text x=\"220\" y=\"75\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T1 SPD<\/text>\n            <line x1=\"150\" y1=\"40\" x2=\"190\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"150\" y1=\"70\" x2=\"190\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"150\" y1=\"100\" x2=\"190\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- Main breaker -->\n            <rect x=\"280\" y=\"30\" width=\"60\" height=\"80\" rx=\"6\" fill=\"#f9fafb\" stroke=\"#9ca3af\"\/>\n            <text x=\"310\" y=\"75\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">Main<\/text>\n            <line x1=\"250\" y1=\"40\" x2=\"280\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"250\" y1=\"70\" x2=\"280\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"250\" y1=\"100\" x2=\"280\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- Outgoing -->\n            <line x1=\"340\" y1=\"40\" x2=\"460\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"340\" y1=\"70\" x2=\"460\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"340\" y1=\"100\" x2=\"460\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <text x=\"400\" y=\"25\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">To Sub-DBs<\/text>\n            <!-- PE -->\n            <line x1=\"220\" y1=\"110\" x2=\"220\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n            <line x1=\"210\" y1=\"140\" x2=\"230\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n          <\/svg>\n        <\/div>\n        <p class=\"copy\">Install upstream at the service entrance. Handles high-energy surges (10\/350&nbsp;\u00b5s). Keep leads short and bonded to PE.<\/p>\n        <div class=\"tags\"><span class=\"tag type\">Type 1<\/span><span class=\"tag\">1P \/ 2P \/ 3P \/ 4P<\/span><span class=\"tag\">Short leads<\/span><\/div>\n        <div class=\"note\">Tip: Place as close as possible to the incomer; observe bending radius &amp; PE bonding.<\/div>\n      <\/div>\n\n      <!-- Card 2: Sub-Distribution (Type 1+2) -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\"><\/span><h4 class=\"h4\">Sub-Distribution \u2014 Type 1+2<\/h4><\/div>\n        <div class=\"svgbox\" aria-label=\"Sub-distribution wiring diagram placeholder\">\n          <svg viewBox=\"0 0 520 180\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n            <rect x=\"12\" y=\"16\" width=\"496\" height=\"148\" rx=\"8\" fill=\"#ffffff\" stroke=\"#e5e7eb\"\/>\n            <text x=\"70\" y=\"25\" font-size=\"12\" fill=\"#374151\">From Main<\/text>\n            <line x1=\"40\" y1=\"40\" x2=\"160\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"40\" y1=\"70\" x2=\"160\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"40\" y1=\"100\" x2=\"160\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- SPD T1+2 -->\n            <rect x=\"180\" y=\"30\" width=\"60\" height=\"80\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/>\n            <text x=\"210\" y=\"75\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T1+2<\/text>\n            <!-- MCB -->\n            <rect x=\"260\" y=\"30\" width=\"44\" height=\"80\" rx=\"6\" fill=\"#f9fafb\" stroke=\"#9ca3af\"\/>\n            <text x=\"282\" y=\"75\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">MCB<\/text>\n            <!-- Out -->\n            <line x1=\"304\" y1=\"40\" x2=\"460\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"304\" y1=\"70\" x2=\"460\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"304\" y1=\"100\" x2=\"460\" y2=\"100\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- PE -->\n            <line x1=\"210\" y1=\"110\" x2=\"210\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n            <line x1=\"200\" y1=\"140\" x2=\"220\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n          <\/svg>\n        <\/div>\n        <p class=\"copy\">Downstream stage combining lightning and surge discharge paths. Coordinate with upstream Type 1 and downstream Type 2\/3.<\/p>\n        <div class=\"tags\"><span class=\"tag type\">Type 1+2<\/span><span class=\"tag\">2P \/ 3P \/ 4P<\/span><span class=\"tag\">Coordination<\/span><\/div>\n        <div class=\"note\">Tip: Keep total lead length (L-in + L-out + PE) minimal to reduce Up.<\/div>\n      <\/div>\n\n      <!-- Card 3: Final Distribution (Type 2) -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\"><\/span><h4 class=\"h4\">Final Distribution \u2014 Type 2<\/h4><\/div>\n        <div class=\"svgbox\" aria-label=\"Final distribution wiring diagram placeholder\">\n          <svg viewBox=\"0 0 520 180\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n            <rect x=\"12\" y=\"16\" width=\"496\" height=\"148\" rx=\"8\" fill=\"#ffffff\" stroke=\"#e5e7eb\"\/>\n            <text x=\"70\" y=\"25\" font-size=\"12\" fill=\"#374151\">From Sub-DB<\/text>\n            <line x1=\"40\" y1=\"40\" x2=\"160\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"40\" y1=\"70\" x2=\"160\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- SPD T2 -->\n            <rect x=\"180\" y=\"30\" width=\"60\" height=\"80\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/>\n            <text x=\"210\" y=\"75\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T2 SPD<\/text>\n            <!-- Out -->\n            <line x1=\"240\" y1=\"40\" x2=\"430\" y2=\"40\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"240\" y1=\"70\" x2=\"430\" y2=\"70\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- Loads -->\n            <rect x=\"430\" y=\"30\" width=\"60\" height=\"80\" rx=\"6\" fill=\"#f9fafb\" stroke=\"#9ca3af\"\/>\n            <text x=\"460\" y=\"75\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">Loads<\/text>\n            <!-- PE -->\n            <line x1=\"210\" y1=\"110\" x2=\"210\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n            <line x1=\"200\" y1=\"140\" x2=\"220\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n          <\/svg>\n        <\/div>\n        <p class=\"copy\">Installed near floor panels or final distribution to clamp switching\/induced surges with low residual voltage (Up).<\/p>\n        <div class=\"tags\"><span class=\"tag type\">Type 2<\/span><span class=\"tag\">1P \/ 2P \/ 3P \/ 4P<\/span><span class=\"tag\">8\/20&nbsp;\u00b5s<\/span><\/div>\n        <div class=\"note\">Tip: Use short, direct PE bonding; verify coordination with upstream stages.<\/div>\n      <\/div>\n\n      <!-- Card 4: Terminal Devices (Type 3) -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\"><\/span><h4 class=\"h4\">Terminal Devices \u2014 Type 3<\/h4><\/div>\n        <div class=\"svgbox\" aria-label=\"Terminal device wiring diagram placeholder\">\n          <svg viewBox=\"0 0 520 180\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n            <rect x=\"12\" y=\"16\" width=\"496\" height=\"148\" rx=\"8\" fill=\"#ffffff\" stroke=\"#e5e7eb\"\/>\n            <!-- Outlet -->\n            <rect x=\"70\" y=\"50\" width=\"60\" height=\"60\" rx=\"8\" fill=\"#f9fafb\" stroke=\"#9ca3af\"\/>\n            <text x=\"100\" y=\"85\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">Outlet<\/text>\n            <!-- SPD T3 -->\n            <rect x=\"180\" y=\"50\" width=\"60\" height=\"60\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/>\n            <text x=\"210\" y=\"85\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T3<\/text>\n            <!-- Device -->\n            <rect x=\"310\" y=\"40\" width=\"120\" height=\"80\" rx=\"8\" fill=\"#f9fafb\" stroke=\"#9ca3af\"\/>\n            <text x=\"370\" y=\"85\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">Sensitive Load<\/text>\n            <line x1=\"130\" y1=\"80\" x2=\"180\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <line x1=\"240\" y1=\"80\" x2=\"310\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <!-- PE -->\n            <line x1=\"210\" y1=\"110\" x2=\"210\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n            <line x1=\"200\" y1=\"140\" x2=\"220\" y2=\"140\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n          <\/svg>\n        <\/div>\n        <p class=\"copy\">Close to sensitive electronics (PLCs, drives, servers). Functions as the last stage in the cascade.<\/p>\n        <div class=\"tags\"><span class=\"tag type\">Type 3<\/span><span class=\"tag\">1P<\/span><span class=\"tag\">Combination \/ Ring<\/span><\/div>\n        <div class=\"note\">Tip: Keep device leads short; verify Up against equipment impulse withstand.<\/div>\n      <\/div>\n\n      <!-- Card 5: Coordinated Cascade (Type 1 \u2192 1+2 \u2192 2 \u2192 3) -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\"><\/span><h4 class=\"h4\">Coordinated Cascade<\/h4><\/div>\n        <div class=\"svgbox\" aria-label=\"Coordinated cascade wiring diagram placeholder\">\n          <svg viewBox=\"0 0 520 180\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n            <rect x=\"12\" y=\"16\" width=\"496\" height=\"148\" rx=\"8\" fill=\"#ffffff\" stroke=\"#e5e7eb\"\/>\n            <!-- Stages -->\n            <rect x=\"40\" y=\"50\" width=\"60\" height=\"60\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/><text x=\"70\" y=\"85\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T1<\/text>\n            <line x1=\"100\" y1=\"80\" x2=\"150\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <rect x=\"150\" y=\"50\" width=\"60\" height=\"60\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/><text x=\"180\" y=\"85\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">1+2<\/text>\n            <line x1=\"210\" y1=\"80\" x2=\"260\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <rect x=\"260\" y=\"50\" width=\"60\" height=\"60\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/><text x=\"290\" y=\"85\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T2<\/text>\n            <line x1=\"320\" y1=\"80\" x2=\"370\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <rect x=\"370\" y=\"50\" width=\"60\" height=\"60\" rx=\"6\" fill=\"#fff5f5\" stroke=\"#b91c1c\"\/><text x=\"400\" y=\"85\" font-size=\"12\" fill=\"#b91c1c\" text-anchor=\"middle\">T3<\/text>\n            <line x1=\"430\" y1=\"80\" x2=\"470\" y2=\"80\" stroke=\"#111827\" stroke-width=\"2\"\/>\n            <text x=\"260\" y=\"25\" font-size=\"12\" fill=\"#374151\" text-anchor=\"middle\">Service \u2192 Sub-DB \u2192 Final \u2192 Devices<\/text>\n            <!-- PE bus -->\n            <line x1=\"70\" y1=\"120\" x2=\"400\" y2=\"120\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n          <\/svg>\n        <\/div>\n        <p class=\"copy\">Full coordination from service entrance to terminal devices. Reduces residual energy stage by stage while maintaining low Up.<\/p>\n        <div class=\"tags\"><span class=\"tag type\">T1 \u2192 1+2 \u2192 2 \u2192 3<\/span><span class=\"tag\">Layered protection<\/span><span class=\"tag\">SCCR aware<\/span><\/div>\n        <div class=\"note\">Tip: Verify coordination rules and spacing; follow panel maker\u2019s guidelines for PE and conductor routing.<\/div>\n      <\/div>\n    <\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-24a0bf5\" data-block-id=\"24a0bf5\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-24a0bf5-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ae9983c\" data-v=\"4\" data-block-id=\"ae9983c\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ae9983c-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ae9983c-inner-blocks\">\n<!-- ===== SEC8 \u2014 Why Choose Us (no icons, bottom-aligned, tidy) ===== -->\n<section id=\"sec-why\" class=\"acspd-sec8\" aria-label=\"Why Choose Us\">\n  <style>\n    .acspd-sec8{position:relative;padding:56px 0;background:#f8f8f8;color:#111827}\n    .acspd-sec8 .wrap{max-width:1200px;margin:0 auto;padding:0 16px}\n    .acspd-sec8 .head{margin-bottom:20px}\n    .acspd-sec8 .title{font-size:28px;line-height:1.2;margin:0 0 8px}\n    .acspd-sec8 .desc{margin:0;color:#4b5563}\n\n    \/* Grid tidy + equal height *\/\n    .acspd-sec8 .grid{\n      display:grid;gap:16px;margin-top:16px;\n      grid-template-columns:repeat(5,1fr);\n      align-items:stretch;\n    }\n    @media (max-width:1100px){.acspd-sec8 .grid{grid-template-columns:repeat(3,1fr)}}\n    @media (max-width:740px){.acspd-sec8 .grid{grid-template-columns:repeat(2,1fr)}}\n    @media (max-width:520px){.acspd-sec8 .grid{grid-template-columns:1fr}.acspd-sec8 .title{font-size:22px}}\n\n    .acspd-sec8 .card{\n      height:100%;\n      background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px;\n      display:flex;flex-direction:column;gap:10px;\n      transition:transform .15s ease,box-shadow .15s ease\n    }\n    .acspd-sec8 .card:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.06)}\n\n    .acspd-sec8 .cap{display:flex;align-items:center;gap:10px}\n    .acspd-sec8 .dot{width:10px;height:10px;border-radius:999px;background:#b91c1c;flex:0 0 auto}\n    .acspd-sec8 .h4{margin:0;font-size:16px;line-height:1.35;font-weight:700}\n    .acspd-sec8 .copy{margin:0;color:#374151;font-size:14px}\n\n    \/* Links + badge stick to bottom *\/\n    .acspd-sec8 .meta{margin-top:auto;display:flex;flex-direction:column;gap:8px}\n    .acspd-sec8 .links{display:flex;flex-wrap:wrap;gap:10px}\n    .acspd-sec8 .alink{\n      font-size:13px;text-decoration:none;border-bottom:1px dashed #b91c1c;color:#b91c1c;\n      padding-bottom:1px\n    }\n    .acspd-sec8 .alink:hover{opacity:.9}\n    .acspd-sec8 .badge{\n      display:inline-block;border:1px solid #e5e7eb;background:#fff;border-radius:999px;\n      padding:3px 10px;font-size:12px;line-height:1;color:#111827;align-self:flex-start\n    }\n\n    .acspd-sec8 .foot{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}\n    .acspd-sec8 .btn{\n      appearance:none;border:1px solid #b91c1c;background:#b91c1c;color:#fff;\n      border-radius:999px;padding:10px 16px;cursor:pointer;font-size:14px;line-height:1\n    }\n    .acspd-sec8 .btn.alt{background:#fff;color:#b91c1c}\n  <\/style>\n\n  <div class=\"wrap\">\n    <div class=\"head\">\n      <h3 class=\"title\">Why Choose Us<\/h3>\n      <p class=\"desc\">Engineer-grade surge protection with reliable delivery and clear guidance\u2014built for industrial and commercial power systems.<\/p>\n    <\/div>\n\n    <div class=\"grid\" role=\"list\">\n      <!-- Card 1 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Factory Direct<\/h4><\/div>\n        <p class=\"copy\">Own manufacturing with consistent processes and incoming\/outgoing tests for every batch of AC SPDs.<\/p>\n        <div class=\"meta\">\n          <div class=\"links\">\n            <a class=\"alink\" href=\"\/contact-us\/\">Get a quote<\/a>\n            <a class=\"alink\" href=\"\/pv-combiner-box\/\">PV combiner box<\/a>\n          <\/div>\n          <span class=\"badge\">Stable supply<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 2 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Standards &amp; Compliance<\/h4><\/div>\n        <p class=\"copy\">Designed for coordinated protection with clear Type labeling (T1 \/ T1+2 \/ T2 \/ T2+3 \/ T3) and SCCR guidance.<\/p>\n        <div class=\"meta\">\n          <div class=\"links\">\n            <a class=\"alink\" href=\"https:\/\/webstore.iec.ch\/publication\/22277\" target=\"_blank\" rel=\"noopener\">IEC 61643-11<\/a>\n            <a class=\"alink\" href=\"https:\/\/www.iecee.org\/\" target=\"_blank\" rel=\"noopener\">IECEE CB Scheme<\/a>\n            <a class=\"alink\" href=\"https:\/\/standardscatalog.ul.com\/standards\/en\/standard_1449_5\" target=\"_blank\" rel=\"noopener\">UL 1449<\/a>\n          <\/div>\n          <span class=\"badge\">IEC alignment<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 3 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Engineering Support<\/h4><\/div>\n        <p class=\"copy\">Selection, wiring and coordination\u2014from service entrance to terminal devices\u2014with concise guidance and quick replies.<\/p>\n        <div class=\"meta\">\n          <div class=\"links\">\n            <a class=\"alink\" href=\"\/ac-fuse\/\">AC fuse holders<\/a>\n            <a class=\"alink\" href=\"\/manual-transfer-switch\/\">Manual transfer switch<\/a>\n          <\/div>\n          <span class=\"badge\">Hands-on guidance<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 4 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Fast Lead Time &amp; Logistics<\/h4><\/div>\n        <p class=\"copy\">Stock for common Types and poles, flexible packing, and reliable forwarding to keep projects on schedule.<\/p>\n        <div class=\"meta\">\n          <div class=\"links\">\n            <a class=\"alink\" href=\"\/contact-us\/\">Lead time &amp; shipping<\/a>\n            <a class=\"alink\" href=\"https:\/\/iccwbo.org\/resources-for-business\/incoterms-rules\/incoterms-2020\/\" target=\"_blank\" rel=\"noopener\">Incoterms&nbsp;2020<\/a>\n          <\/div>\n          <span class=\"badge\">On-time delivery<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- Card 5 -->\n      <div class=\"card\" role=\"listitem\">\n        <div class=\"cap\"><span class=\"dot\" aria-hidden=\"true\"><\/span><h4 class=\"h4\">Customization (OEM\/ODM)<\/h4><\/div>\n        <p class=\"copy\">Model labeling, remote contact options, and coordination packs tailored for your panels and markets.<\/p>\n        <div class=\"meta\">\n          <div class=\"links\">\n            <a class=\"alink\" href=\"\/contact-us\/\">OEM\/ODM request<\/a>\n            <a class=\"alink\" href=\"https:\/\/single-market-economy.ec.europa.eu\/single-market\/ce-marking_en\" target=\"_blank\" rel=\"noopener\">CE marking<\/a>\n            <a class=\"alink\" href=\"https:\/\/environment.ec.europa.eu\/topics\/waste-and-recycling\/rohs-directive_en\" target=\"_blank\" rel=\"noopener\">RoHS directive<\/a>\n          <\/div>\n          <span class=\"badge\">Flexible options<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"foot\">\n     <button class=\"btn\" type=\"button\" onclick=\"location.href='#acspd-selector'\">Back to Selector<\/button>\n     <button class=\"btn alt\" type=\"button\" onclick=\"location.href='#sec-faq'\">Go to FAQ<\/button>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-e1b8bd1\" data-block-id=\"e1b8bd1\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-e1b8bd1-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-75c6d8f\" data-v=\"4\" data-block-id=\"75c6d8f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-75c6d8f-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-75c6d8f-inner-blocks\">\n<!-- ===== SEC9 \u2014 FAQ (Accordion) ===== -->\n<section id=\"sec-faq\" class=\"acspd-sec9\" aria-label=\"AC SPD FAQ\">\n  <style>\n    .acspd-sec9{padding:56px 0;background:#ffffff;color:#111827}\n    .acspd-sec9 .wrap{max-width:1000px;margin:0 auto;padding:0 16px}\n    .acspd-sec9 .title{font-size:28px;line-height:1.2;margin:0 0 8px}\n    .acspd-sec9 .desc{margin:0 0 12px;color:#4b5563}\n\n    \/* Accordion *\/\n    .acspd-sec9 details{\n      border:1px solid #e5e7eb;border-left:4px solid #b91c1c;border-radius:12px;\n      padding:12px 14px;margin:10px 0;background:#fff\n    }\n    .acspd-sec9 summary{\n      list-style:none;cursor:pointer;font-weight:700;font-size:15px;outline:none\n    }\n    .acspd-sec9 summary::-webkit-details-marker{display:none}\n    .acspd-sec9 summary:after{\n      content:\"+\";float:right;color:#b91c1c;font-weight:700\n    }\n    .acspd-sec9 details[open] summary:after{content:\"\u2013\"}\n    .acspd-sec9 .body{margin-top:10px;color:#374151;font-size:14px;line-height:1.6}\n    .acspd-sec9 .body p{margin:0 0 8px}\n    .acspd-sec9 .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}\n    .acspd-sec9 .chip{\n      display:inline-block;border:1px solid #e5e7eb;border-radius:999px;background:#fafafa;\n      padding:3px 10px;font-size:12px;line-height:1;color:#111827\n    }\n    .acspd-sec9 a{\n      color:#b91c1c;text-decoration:none;border-bottom:1px dashed #b91c1c;padding-bottom:1px\n    }\n    .acspd-sec9 a:hover{opacity:.9}\n\n    \/* Footer buttons *\/\n    .acspd-sec9 .foot{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}\n    .acspd-sec9 .btn{\n      appearance:none;border:1px solid #b91c1c;background:#b91c1c;color:#fff;\n      border-radius:999px;padding:10px 16px;cursor:pointer;font-size:14px;line-height:1\n    }\n    .acspd-sec9 .btn.alt{background:#fff;color:#b91c1c}\n    @media (max-width:640px){.acspd-sec9 .title{font-size:22px}}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h3 class=\"title\">AC SPD \u2014 Frequently Asked Questions<\/h3>\n    <p class=\"desc\">Short, practical answers. See <a href=\"#sec-wiring\">wiring topologies<\/a> and\n       <a href=\"#sec-params\">parameters<\/a> for more details.<\/p>\n\n    <!-- Q1 -->\n    <details>\n      <summary>What\u2019s the difference between Type 1, Type 1+2, Type 2, Type 2+3 and Type 3?<\/summary>\n      <div class=\"body\">\n        <p><strong>Type 1<\/strong> handles lightning surge currents (10\/350&nbsp;\u00b5s), installed at the service entrance.\n           <strong>Type 1+2<\/strong> combines lightning + surge (10\/350 + 8\/20&nbsp;\u00b5s) for sub-distribution boards.\n           <strong>Type 2<\/strong> clamps switching\/induced surges (8\/20&nbsp;\u00b5s) at final distribution.\n           <strong>Type 2+3<\/strong> adds terminal-level enhancement.\n           <strong>Type 3<\/strong> protects sensitive loads at sockets\/devices.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\">See <a href=\"#sec-apps\">Applications<\/a><\/span>\n          <span class=\"chip\">See <a href=\"#sec-wiring\">Topologies<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q2 -->\n    <details>\n      <summary>How do I choose <em>Uc<\/em> (continuous operating voltage)?<\/summary>\n      <div class=\"body\">\n        <p>Choose <strong>Uc \u2265 system nominal<\/strong> (allowing tolerances &amp; faults) and match the earthing system (TN\/TT\/IT).\n           Typical picks: 275&nbsp;V for 230\/400&nbsp;V systems (L-N), 320\u2013385&nbsp;V for higher L-N or where overvoltage exposure is expected.\n           Always confirm with your panel standards and utility conditions.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\">Check <a href=\"#sec-params\">Uc\/Up table<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q3 -->\n    <details>\n      <summary>What does <em>Up<\/em> mean and how low should it be?<\/summary>\n      <div class=\"body\">\n        <p><strong>Up<\/strong> is the SPD\u2019s residual (let-through) voltage at a specified current\/shape. Lower Up reduces stress on equipment,\n           but must be balanced with coordination and SCCR. Keep leads short to lower effective Up at the terminals.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"#sec-wiring\">Short-lead routing<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q4 -->\n    <details>\n      <summary>What is SCCR \/ short-circuit coordination for SPDs?<\/summary>\n      <div class=\"body\">\n        <p>SCCR is the assembly\u2019s ability to withstand short-circuit conditions. Many SPDs require a <strong>backup protective device<\/strong>\n           (fuse\/MCB) to meet the specified SCCR. Select per datasheet and panel standard; verify clearing I\u00b2t and max backup ratings.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"\/ac-fuse\/\">Backup fuse options<\/a><\/span>\n          <span class=\"chip\"><a href=\"#sec-params\">Max backup rating<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q5 -->\n    <details>\n      <summary>Do I still need an external disconnector if the SPD has an internal thermal element?<\/summary>\n      <div class=\"body\">\n        <p>Yes\u2014internal thermal disconnect protects the module itself, but an external <strong>OCPD<\/strong> (fuse\/MCB) is usually required for\n           short-circuit protection and maintenance isolation. Place it per the wiring diagram and coordination rules.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"#sec-wiring\">Placement guidance<\/a><\/span>\n          <span class=\"chip\"><a href=\"\/ac-fuse\/\">OCPD selection<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q6 -->\n    <details>\n      <summary>How do I coordinate multiple stages (T1 \u2192 T1+2 \u2192 T2 \u2192 T3)?<\/summary>\n      <div class=\"body\">\n        <p>Start at the service entrance with Type 1, then add Type 1+2 in sub-DBs, Type 2 in final boards, and Type 3 near devices.\n           Keep interconnection leads <strong>as short as possible<\/strong>, bond to PE directly, and avoid loops to minimize inductive voltage rise.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"#sec-wiring\">Cascade example<\/a><\/span>\n          <span class=\"chip\"><a href=\"#sec-apps\">Where to install<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q7 -->\n    <details>\n      <summary>What is the remote signaling contact used for?<\/summary>\n      <div class=\"body\">\n        <p>Dry contacts report SPD status (e.g., OK\/replace) to PLC\/SCADA\/BMS for maintenance alarms. Choose models with\n           <strong>remote contact<\/strong> when you need centralized monitoring.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"#sec-params\">Models with remote<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n    <!-- Q8 -->\n    <details>\n      <summary>How often should I inspect or replace the module?<\/summary>\n      <div class=\"body\">\n        <p>Check the <strong>status window<\/strong> during routine maintenance (e.g., quarterly). Replace plug-in modules when the indicator shows fault,\n           after severe surge events, or per your site\u2019s preventive-maintenance plan.<\/p>\n      <\/div>\n    <\/details>\n\n    <!-- Q9 -->\n    <details>\n      <summary>Can I use an AC SPD on a DC circuit?<\/summary>\n      <div class=\"body\">\n        <p>No. Use DC-rated SPDs for DC systems\u2014they differ in ratings, modes, and test standards.\n           See our <a href=\"\/dc-spd\/\">DC SPD page<\/a> for PV\/ESS\/EV DC applications.<\/p>\n      <\/div>\n    <\/details>\n\n    <!-- Q10 -->\n    <details>\n      <summary>Which standards do these products follow and where can I learn more?<\/summary>\n      <div class=\"body\">\n        <p>AC SPDs are designed to IEC 61643-11; regional conformity may reference UL 1449, CE, and RoHS. Contact us for datasheets and declarations.<\/p>\n        <div class=\"chips\">\n          <span class=\"chip\"><a href=\"https:\/\/webstore.iec.ch\/publication\/22277\" target=\"_blank\" rel=\"noopener\">IEC 61643-11<\/a><\/span>\n          <span class=\"chip\"><a href=\"https:\/\/standardscatalog.ul.com\/standards\/en\/standard_1449_5\" target=\"_blank\" rel=\"noopener\">UL 1449<\/a><\/span>\n          <span class=\"chip\"><a href=\"\/contact-us\/\">Contact us<\/a><\/span>\n        <\/div>\n      <\/div>\n    <\/details>\n\n<div class=\"foot\">\n  <button class=\"btn\" type=\"button\" onclick=\"location.href='#acspd-selector'\">Back to Selector<\/button>\n  <button class=\"btn\" type=\"button\" style=\"background:#b91c1c;color:#fff;\"\n          onclick=\"location.href='\/contact-us\/'\">\n    Contact Us for Quote\n  <\/button>\n<\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>AC Surge Protective Device (AC SPD) Engineered for industrial and commercial distribution systems, Kuangya AC SPDs deliver reliable Type 1, Type 2, and Type 1+2 protection against overvoltage events. See Models Get Quote Select Your AC SPD Use tabs and filters to find the right model. Click a card to open the product detail page. 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