{"id":1482,"date":"2025-08-26T07:19:28","date_gmt":"2025-08-26T07:19:28","guid":{"rendered":"https:\/\/sinobreaker.com\/?page_id=1482"},"modified":"2025-10-24T08:57:50","modified_gmt":"2025-10-24T08:57:50","slug":"%e3%82%b3%e3%83%b3%e3%83%90%e3%82%a4%e3%83%8a%e3%83%bc%e3%83%9c%e3%83%83%e3%82%af%e3%82%b9","status":"publish","type":"page","link":"https:\/\/sinobreaker.com\/ja\/pv-combiner-box\/","title":{"rendered":"\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-f097a47 stk-block-background stk--has-background-overlay\" id=\"sec-hero\" data-block-id=\"f097a47\"><style>.stk-f097a47 {background-image:url(https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-COMBINER-BOX.png) !important;background-position:center center !important;min-height:var(--stk--preset--block-height--xx-large, 32rem) !important;}.stk-f097a47:before{background-color:#000000 !important;opacity:0.2 !important;}<\/style><div class=\"stk-row stk-inner-blocks has-text-align-left stk-block-content stk-content-align stk-f097a47-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-427d62d\" data-v=\"4\" data-block-id=\"427d62d\"><style>@media screen and (min-width:690px){.stk-427d62d {flex:var(--stk-flex-grow, 1) 1 calc(52.4% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-427d62d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-427d62d-inner-blocks\">\n<h2 class=\"wp-block-heading\"><span style=\"color: var(--theme-palette-color-8, #ffffff);\" class=\"stk-highlight\">PV Combiner Box (500V\/1000V DC)<\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><span style=\"color: var(--theme-palette-color-8, #ffffff);\" class=\"stk-highlight\">Fuse + SPD + Isolator\/Breaker in one outdoor IP65\/66 enclosure for safe, fast string aggregation.<br><\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-palette-color-2-color has-text-color has-link-color has-medium-font-size wp-elements-ae3dd50b8ed2ab86bbd5fba34bb4ab91\">Configurable strings &amp; outputs for utility and C&amp;I rooftops<\/li>\n\n\n\n<li class=\"has-palette-color-2-color has-text-color has-link-color has-medium-font-size wp-elements-f8bd7cfc9df2b6a85fc3f6c6a2bf82ed\">Pre-wired options to cut on-site wiring time<\/li>\n\n\n\n<li class=\"has-palette-color-2-color has-text-color has-link-color has-medium-font-size wp-elements-aa263c59152dbea674182d15039b3dd9\">Tested to IEC\/UL; UV-resistant, field-ready build<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons has-custom-font-size has-small-font-size is-content-justification-space-between is-layout-flex wp-container-core-buttons-is-layout-c7f5e365 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 popmake-899\"><a class=\"wp-block-button__link wp-element-button\" style=\"border-radius:10px\">Get Quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link wp-element-button\" style=\"border-radius:10px\" rel=\"#sec-models\">See Models<\/a><\/div>\n<\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d0d0fe6\" data-v=\"4\" data-block-id=\"d0d0fe6\"><style>@media screen and (min-width:690px){.stk-d0d0fe6 {flex:var(--stk-flex-grow, 1) 1 calc(47.6% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d0d0fe6-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d0d0fe6-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-34f41c9\" data-block-id=\"34f41c9\"><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1488\" src=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group.webp\" width=\"1023\" height=\"731\" alt=\"PV combiner box group\" srcset=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group.webp 1023w, https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group-300x214.webp 300w, https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group-768x549.webp 768w, https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group-18x12.webp 18w, https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/PV-combiner-box-group-600x429.webp 600w\" sizes=\"auto, (max-width: 1023px) 100vw, 1023px\" \/><\/span><\/figure><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-1a5f9c2\" data-block-id=\"1a5f9c2\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-1a5f9c2-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-90752e4\" data-v=\"4\" data-block-id=\"90752e4\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-90752e4-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-90752e4-inner-blocks\">\n<section id=\"sec-models\" class=\"pv-sec pv-models\" aria-labelledby=\"models-title\">\n  <style>\n    \/* ===== \u989c\u8272\u4e0e\u57fa\u7840\u53d8\u91cf\uff08\u628a\u6309\u94ae\u4e3b\u8272\u8c03\u6539\u6210\u54c1\u724c\u84dd\uff09 ===== *\/\n    \/* \u4fee\u6539 --brand \u5373\u53ef\u6539\u201cView details\u201d\u6309\u94ae\u548c\u7b5b\u9009\u82af\u7247\u7684\u6fc0\u6d3b\u8272 *\/\n    #sec-models{--brand:#2563EB;--ink:#0f172a;--muted:#475569;--line:#e2e8f0;--card:#fff}\n\n    \/* ===== \u7248\u9762\u4e0e\u6392\u7248 ===== *\/\n    #sec-models{padding:clamp(24px,4vw,40px) 0;color:var(--ink)}\n    #sec-models .wrap{max-width:1600px;margin:0 auto;padding:0 clamp(16px,2vw,24px)}\n    #sec-models header{text-align:center} \/* \u6807\u9898\u4e0e\u5f15\u5bfc\u6587\u5c45\u4e2d *\/\n    #sec-models h2{font-size:clamp(22px,2.2vw,28px);line-height:1.2;margin:0 0 12px}\n    #sec-models .lead{color:var(--muted);margin:0 0 18px}\n\n    \/* ===== \u7b5b\u9009\u6761 ===== *\/\n    #sec-models .filterbar{display:grid;gap:10px;grid-template-columns:1fr}\n    #sec-models .filter-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}\n    #sec-models .label{font-size:13px;color:var(--muted);margin-right:4px}\n    #sec-models .chip{appearance:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:600 13px\/1.2 system-ui,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);cursor:pointer;transition:.2s}\n    #sec-models .chip:hover{border-color:#cbd5e1}\n    #sec-models .chip[aria-pressed=\"true\"]{background:var(--brand);border-color:var(--brand);color:#fff}\n    #sec-models .clear{margin-left:auto}\n    #sec-models .clear .chip{background:#f8fafc}\n\n    \/* ===== \u7f51\u683c\uff1a\u684c\u9762\u7aef\u4e00\u6392 6 \u4e2a ===== *\/\n    #sec-models .grid{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}\n    @media(min-width:690px){  #sec-models .grid{grid-template-columns:repeat(3,minmax(0,1fr));} }\n    @media(min-width:1000px){ #sec-models .grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;} }\n\n    \/* ===== \u7ec4\u6807\u9898 ===== *\/\n    #sec-models .group{margin-top:20px}\n    #sec-models .group-title{font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--muted);text-transform:uppercase;margin:18px 0 10px}\n\n    \/* ===== \u5361\u7247\uff1a\u6574\u5361\u53ef\u70b9\uff08data-href\uff09 ===== *\/\n    #sec-models .card{\n      background:var(--card);border:1px solid var(--line);border-radius:16px;\n      padding:12px;display:flex;flex-direction:column;gap:8px;\n      transition:transform .15s ease, box-shadow .15s ease; cursor:pointer; outline:none;\n    }\n    #sec-models .card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(2,6,23,.06)}\n    #sec-models .card:focus-visible{box-shadow:0 0 0 3px rgba(37,99,235,.35)} \/* \u54c1\u724c\u84dd\u63cf\u8fb9 *\/\n\n    \/* ===== \u4e0a\u534a\u90e8\u5206\uff1a\u6b63\u65b9\u5f62\u4e3b\u56fe\u505a\u80cc\u666f\uff08cover\uff09 ===== *\/\n    #sec-models .hero{\n      aspect-ratio:1\/1;border-radius:12px;border:1px solid #e5edf6;overflow:hidden;\n      background: center \/ cover no-repeat var(--img), linear-gradient(180deg,#f8fafc,#eef2f7);\n    }\n\n    \/* ===== \u4e0b\u534a\u90e8\u5206\u4e09\u884c\u4fe1\u606f\uff08\u4e0d\u6362\u884c\uff09 ===== *\/\n    #sec-models .row{display:flex;align-items:center;gap:8px;flex-wrap:nowrap}\n    #sec-models .row-1{min-width:0}\n    #sec-models .row-2{min-height:20px}\n    #sec-models .row-3{margin-top:2px}\n\n    #sec-models .tag{font-size:11px;color:#0b7a3b;background:rgba(97,206,112,.12);\n      border:1px solid rgba(97,206,112,.35);padding:3px 8px;border-radius:999px;white-space:nowrap}\n    #sec-models .model{font-size:15px;font-weight:800;letter-spacing:.2px;white-space:nowrap}\n    #sec-models .io{font-size:13px;font-weight:700;letter-spacing:.04em;color:#0f172a;background:#f1f5f9;border:1px solid #e2e8f0;padding:4px 8px;border-radius:8px;white-space:nowrap}\n\n    #sec-models .btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 12px;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;text-decoration:none;white-space:nowrap}\n    #sec-models .link{font-weight:700;text-decoration:none;color:var(--ink);border-bottom:1px dashed #cbd5e1;white-space:nowrap}\n    #sec-models .link:focus{outline:none}\n\n    #sec-models .hidden{display:none!important}\n    #sec-models .tools{margin-top:10px}\n    #sec-models .tools a{font-size:13px;color:var(--muted);text-decoration:none}\n\/* ===== SEC2 \u8865\u4e01\uff1a\u6807\u9898\u5c45\u4e2d + \u4e3b\u8272\u84dd + \u4fdd\u8bc1 6 \u5217 + \u6587\u6848\u4e0d\u6362\u884c ===== *\/\n#sec-models header{ text-align:center; }                \/* \u6807\u9898\/\u5f15\u5bfc\u6587 \u5c45\u4e2d *\/\n#sec-models{ --brand:#2563EB; }                         \/* \u4e3b\u8272\u6539\u4e3a\u54c1\u724c\u84dd *\/\n\n@media (min-width:1000px){                               \/* \u684c\u9762\u7aef\u5f3a\u5236 6 \u5217 *\/\n  #sec-models .grid{ grid-template-columns:repeat(6,minmax(0,1fr)); gap:12px; }\n}\n\n#sec-models .row-3 .link{ white-space:nowrap; }          \/* \u201cSpecs & wiring\u201d \u4e0d\u6362\u884c *\/\n\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"models-title\">Product Range \u2014 HS &amp; HD Series<\/h2>\n      <p class=\"lead\">Choose a model below. Use filters (Strings \/ Outputs \/ Switch Type) to refine.<\/p>\n    <\/header>\n<!-- \u653e\u5728 #sec-models \u6807\u9898\u6216\u7b5b\u9009\u5668\u4e0b\u65b9\uff1b\u7528\u4e8e\u8986\u76d6 Landing \u5173\u952e\u8bcd\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 -->\n<div class=\"kwlinks\">\n  Popular searches:\n  <a href=\"#hs-2-1\">2 string PV combiner box<\/a> \u00b7\n  <a href=\"#hs-3-1\">3 string PV combiner box<\/a> \u00b7\n  <a href=\"#hs-4-2\">4 string PV combiner box<\/a> \u00b7\n  <a href=\"#hs-6-2\">6 string PV combiner box<\/a> \u00b7\n  <a href=\"#hs-2-2\">PV combiner box 2 in 1 out<\/a>\n<\/div>\n<style>\n  \/* \u4f5c\u7528\u57df\u9650\u5b9a\u5728 #sec-models\uff0c\u907f\u514d\u6c61\u67d3\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 *\/\n  #sec-models .kwlinks{margin-top:8px;font-size:12px;color:#64748b}\n  #sec-models .kwlinks a{color:inherit;text-decoration:underline dotted}\n  #sec-models .kwlinks a:hover{opacity:.85}\n<\/style>\n\n\n    <!-- \u7b5b\u9009\u6761\uff08\u82f1\u6587\u53ef\u89c1\uff0c\u4e2d\u6587\u4ec5\u6ce8\u91ca\uff09 -->\n    <div class=\"filterbar\" role=\"region\" aria-label=\"Quick filters\">\n      <div class=\"filter-row\" data-group=\"strings\">\n        <span class=\"label\">Strings<\/span>\n        <button class=\"chip\" aria-pressed=\"true\" data-value=\"\">All<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"1\">1<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"2\">2<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"3\">3<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"4\">4<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"6\">6<\/button>\n      <\/div>\n      <div class=\"filter-row\" data-group=\"outputs\">\n        <span class=\"label\">Outputs<\/span>\n        <button class=\"chip\" aria-pressed=\"true\" data-value=\"\">All<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"1\">1<\/button>\n        <button class=\"chip\" aria-pressed=\"false\" data-value=\"2\">2<\/button>\n      <\/div>\n      <div class=\"filter-row\">\n        <span class=\"label\">Switch Type<\/span>\n        <div class=\"filter-row\" data-group=\"switch\">\n          <button class=\"chip\" aria-pressed=\"true\" data-value=\"\">All<\/button>\n          <button class=\"chip\" aria-pressed=\"false\" data-value=\"disconnector\">Disconnector<\/button>\n          <button class=\"chip\" aria-pressed=\"false\" data-value=\"breaker\">Breaker<\/button>\n        <\/div>\n        <div class=\"clear\"><button class=\"chip\" id=\"clearFilters\" aria-pressed=\"false\">Clear all<\/button><\/div>\n      <\/div>\n      <div class=\"tools\"><a href=\"#sec-guide\">\u2192 Jump to Protection Stack<\/a><\/div>\n    <\/div>\n\n    <!-- HS \u7ec4 -->\n    <div class=\"group\" aria-labelledby=\"hs-title\">\n      <div class=\"group-title\" id=\"hs-title\">HS \u2014 Fuse + SPD + Switch Disconnector<\/div>\n      <div class=\"grid\" role=\"list\">\n        <!-- HS-1\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-1\/1 PV combiner box \u2014 1 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-1-in-1-out-1000vdc\/\"\n          data-series=\"HS\" data-strings=\"1\" data-outputs=\"1\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS1-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-1\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">1 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-1-in-1-out-1000vdc\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HS-2\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-2\/1 PV combiner box \u2014 2 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-2-in-1-out-1000vdc\/\"\n          data-series=\"HS\" data-strings=\"2\" data-outputs=\"1\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS2-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-2\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">2 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-2-in-1-out-1000vdc\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HS-3\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-3\/1 PV combiner box \u2014 3 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-3-in-1-out\/\"\n          data-series=\"HS\" data-strings=\"3\" data-outputs=\"1\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS3-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-3\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">3 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-3-in-1-out\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HS-2\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-2\/2 PV combiner box \u2014 2 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-2-in-2-out\/\"\n          data-series=\"HS\" data-strings=\"2\" data-outputs=\"2\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS2-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-2\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">2 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-2-in-2-out\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HS-4\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-4\/2 PV combiner box \u2014 4 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-4-in-2-out\/\"\n          data-series=\"HS\" data-strings=\"4\" data-outputs=\"2\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS4-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-4\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">4 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-4-in-2-out\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HS-6\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HS-6\/2 PV combiner box \u2014 6 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-6-in-2-out\/\"\n          data-series=\"HS\" data-strings=\"6\" data-outputs=\"2\" data-switch=\"disconnector\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HS6-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HS Series<\/span><span class=\"model\">HS-6\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">6 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/pv-combiner-box-6-in-2-out\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n      <\/div>\n    <\/div>\n\n    <!-- HD \u7ec4 -->\n    <div class=\"group\" aria-labelledby=\"hd-title\">\n      <div class=\"group-title\" id=\"hd-title\">HD \u2014 Fuse + SPD + Breaker\/MCB<\/div>\n      <div class=\"grid\" role=\"list\">\n        <!-- HD-1\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-1\/1 PV combiner box \u2014 1 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/1-string-pv-combiner-box\/\"\n          data-series=\"HD\" data-strings=\"1\" data-outputs=\"1\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD1-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-1\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">1 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/1-string-pv-combiner-box\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HD-2\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-2\/1 PV combiner box \u2014 2 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/2-string-pv-combiner-box\/\"\n          data-series=\"HD\" data-strings=\"2\" data-outputs=\"1\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD2-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-2\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">2 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/2-string-pv-combiner-box\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HD-3\/1 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-3\/1 PV combiner box \u2014 3 IN 1 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/3-string-pv-combiner-box\/\"\n          data-series=\"HD\" data-strings=\"3\" data-outputs=\"1\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD3-1-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-3\/1<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">3 IN 1 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/3-string-pv-combiner-box\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HD-2\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-2\/2 PV combiner box \u2014 2 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/dual-string-pv-combiner-box\/\"\n          data-series=\"HD\" data-strings=\"2\" data-outputs=\"2\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD2-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-2\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">2 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/dual-string-pv-combiner-box\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HD-4\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-4\/2 PV combiner box \u2014 4 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/4-string-pv-combiner-box-dual-outputs\/\"\n          data-series=\"HD\" data-strings=\"4\" data-outputs=\"2\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD4-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-4\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">4 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/4-string-pv-combiner-box-dual-outputs\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n\n        <!-- HD-6\/2 -->\n        <article class=\"card\" role=\"link\" tabindex=\"0\" aria-label=\"HD-6\/2 PV combiner box \u2014 6 IN 2 OUT\"\n          data-href=\"https:\/\/sinobreaker.com\/product\/6-string-pv-combiner-box\/\"\n          data-series=\"HD\" data-strings=\"6\" data-outputs=\"2\" data-switch=\"breaker\"\n          style=\"--img:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/HD6-2-LOGO.png');\">\n          <div class=\"hero\"><\/div>\n          <div class=\"row row-1\"><span class=\"tag\">HD Series<\/span><span class=\"model\">HD-6\/2<\/span><\/div>\n          <div class=\"row row-2\"><span class=\"io\">6 IN 2 OUT<\/span><\/div>\n          <div class=\"row row-3\"><a class=\"link\" href=\"https:\/\/sinobreaker.com\/product\/6-string-pv-combiner-box\/#specs\" onclick=\"event.stopPropagation()\">Specs &amp; wiring<\/a><\/div>\n        <\/article>\n      <\/div>\n    <\/div>\n\n    <noscript><p style=\"color:#64748b\">Tip: enable JavaScript to use filters, or jump to the <a href=\"#sec-guide\">Selection Guide<\/a>.<\/p><\/noscript>\n  <\/div>\n\n  <script>\n    \/* ===== \u4ea4\u4e92\uff1a\u6574\u5361\u53ef\u70b9 + \u7b5b\u9009\uff08\u4e2d\u6587\u6ce8\u91ca\uff0c\u4ec5\u884c\u4e3a\u8bf4\u660e\uff09 ===== *\/\n    (function(){\n      const root = document.getElementById('sec-models');\n      if(!root) return;\n\n      \/\/ \u6574\u5361\u70b9\u51fb\u8df3\u8f6c\uff08\u5b50\u94fe\u63a5\u5df2 stopPropagation\uff0c\u4e0d\u4f1a\u51b2\u7a81\uff09\n      root.addEventListener('click', (e)=>{\n        const card = e.target.closest('.card');\n        if(!card || !card.dataset.href) return;\n        if(e.target.closest('a.link')) return;\n        window.location.href = card.dataset.href;\n      });\n\n      \/\/ \u952e\u76d8\u53ef\u8fbe\uff08\u56de\u8f66 \/ \u7a7a\u683c\uff09\n      root.addEventListener('keydown', (e)=>{\n        const card = e.target.closest('.card');\n        if(!card || !card.dataset.href) return;\n        if(e.key === 'Enter' || e.key === ' '){\n          e.preventDefault();\n          window.location.href = card.dataset.href;\n        }\n      });\n\n      \/\/ \u7b80\u6613\u7b5b\u9009\n      const groups = ['strings','outputs','switch'];\n      const state = {strings:'', outputs:'', switch:''};\n\n      function setPressed(btn, on){ btn.setAttribute('aria-pressed', on ? 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}\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"protection-title\">Protection Stack \u2014 Fuse \u2022 SPD \u2022 Disconnector \u2022 Enclosure<\/h2>\n      <p class=\"lead\">What each component does and why it matters for safety, uptime and serviceability.<\/p>\n    <\/header>\n\n    <!-- \u6d41\u7a0b\u82af\u7247\uff1a\u9875\u9762\u5185\u94fe\uff08\u6700\u540e\u4e00\u4e2a\u76f4\u8fbe SEC2 \u4ea7\u54c1\u533a\uff09 -->\n    <div class=\"flow\" aria-label=\"PV DC protection flow\">\n      <div class=\"step\"><a class=\"chip\" href=\"#ps-strings\">PV Strings<\/a>\n        <svg class=\"arrow\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M5 12h14M13 6l6 6-6 6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n      <\/div>\n      <div class=\"step\"><a class=\"chip\" href=\"#ps-fuse\">DC Fuse<\/a>\n        <svg class=\"arrow\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M5 12h14M13 6l6 6-6 6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n      <\/div>\n      <div class=\"step\"><a class=\"chip\" href=\"#ps-spd\">DC SPD<\/a>\n        <svg class=\"arrow\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M5 12h14M13 6l6 6-6 6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n      <\/div>\n      <div class=\"step\"><a class=\"chip\" href=\"#ps-switch\">Switch Disconnector \/ MCB<\/a>\n        <svg class=\"arrow\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M5 12h14M13 6l6 6-6 6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n      <\/div>\n      <div class=\"step\"><a class=\"chip\" href=\"#sec-models\">Inverter<\/a><\/div>\n    <\/div>\n\n    <!-- \u201cPV Strings\u201d \u951a\u70b9\uff08\u4f4d\u7f6e\u5360\u4f4d\uff0c\u4e0d\u663e\u793a\u5185\u5bb9\uff09 -->\n    <div id=\"ps-strings\"><\/div>\n\n    <!-- \u56db\u7ec4\u4ef6\u89e3\u91ca\u5361\u7247\uff08\u6807\u9898\u4e3a\u7ad9\u5185\u94fe\u63a5\uff1b\u7b2c\u4e09\u4e2a\u6309\u4f60\u7684\u8def\u5f84 \/DC-Switch-disconnector\uff09 -->\n    <div class=\"grid\" role=\"list\">\n      <!-- Fuse -->\n      <article class=\"card\" id=\"ps-fuse\" role=\"listitem\">\n        <svg class=\"icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\n          <rect x=\"5\" y=\"7\" width=\"14\" height=\"10\" rx=\"2\" stroke=\"currentColor\" stroke-width=\"2\"\/>\n          <path d=\"M9 12h6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\/>\n        <\/svg>\n        <div class=\"title\"><a href=\"\/dc-fuse\/\">DC Fuse (gPV)<\/a><\/div>\n        <p class=\"desc\">Provides string-level overcurrent protection. Limits fault energy and isolates a faulted string to keep the rest of the array online.<\/p>\n        <span class=\"badge\">Typical: 10\u00d738 mm<\/span>\n      <\/article>\n\n      <!-- SPD -->\n      <article class=\"card\" id=\"ps-spd\" role=\"listitem\">\n        <svg class=\"icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\n          <path d=\"M12 2v6M12 16v6M4 12h6M14 12h6M7 7l3 3-3 3\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n        <\/svg>\n        <div class=\"title\"><a href=\"\/dc-spd\/\">DC Surge Protective Device<\/a><\/div>\n        <p class=\"desc\">Clamps lightning- or switching-induced surges to protect downstream equipment. Coordinated with fuse for safe disconnection under fault.<\/p>\n        <span class=\"badge\">Type II (or I+II)<\/span>\n      <\/article>\n\n      <!-- Disconnector \/ MCB -->\n      <article class=\"card\" id=\"ps-switch\" role=\"listitem\">\n        <svg class=\"icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\n          <path d=\"M4 12h16M12 4v6M12 14v6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\/>\n        <\/svg>\n        <div class=\"title\"><a href=\"\/DC-Switch-disconnector\">Switch Disconnector \/ MCB<\/a><\/div>\n        <p class=\"desc\">Enables safe load-break isolation and maintenance. HS uses a DC disconnector; HD integrates a breaker\/MCB for trip indication and reset.<\/p>\n        <span class=\"badge\">Load-break DC rated<\/span>\n      <\/article>\n\n      <!-- Waterproof Enclosure -->\n      <article class=\"card\" id=\"ps-enclosure\" role=\"listitem\">\n        <svg class=\"icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\n          <rect x=\"3\" y=\"5\" width=\"18\" height=\"14\" rx=\"2\" stroke=\"currentColor\" stroke-width=\"2\"\/>\n          <path d=\"M3 9h18\" stroke=\"currentColor\" stroke-width=\"2\"\/>\n        <\/svg>\n        <div class=\"title\"><a href=\"\/waterproof-distribution-box\/\">Waterproof Distribution Box<\/a><\/div>\n        <p class=\"desc\">UV-resistant, outdoor-rated enclosure with cable glands or MC4 entries. Keeps dust and water out for long-term reliability.<\/p>\n        <span class=\"badge\">IP65\/66 class<\/span>\n      <\/article>\n    <\/div>\n\n    <!-- \u6807\u51c6\u5916\u94fe\uff08IEC \u5b98\u65b9\uff0c\u53e6\u5f00\u7a97\u53e3\uff09 -->\n    <div class=\"standards\" aria-label=\"Standards and conformity\">\n      <a class=\"std\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/68843\" target=\"_blank\" rel=\"noopener\">IEC&nbsp;60269-6 (gPV fuse)<\/a>\n      <a class=\"std\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931\" target=\"_blank\" rel=\"noopener\">IEC&nbsp;61643-31 (DC SPD)<\/a>\n      <a class=\"std\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/59785\" target=\"_blank\" rel=\"noopener\">IEC&nbsp;60947-3 (Disconnector)<\/a>\n      <a class=\"std\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/30043\" target=\"_blank\" rel=\"noopener\">IEC&nbsp;61439-2 (Assembly)<\/a>\n    <\/div>\n    <p class=\"note\">Standards and ratings may vary by model; see each product page for exact specs.<\/p>\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-627c084\" data-block-id=\"627c084\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-627c084-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0f20139\" data-v=\"4\" data-block-id=\"0f20139\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0f20139-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0f20139-inner-blocks\">\n<!-- ===== SEC-Bridge (place between SEC3 and SEC4) ===== -->\n<section id=\"sec-bridge\" class=\"pv-sec pv-bridge img\" aria-labelledby=\"bridge-title\"\n  style=\"--bg:url('https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/08\/back3.png')\">\n  <style>\n    \/* \u4ec5\u4f5c\u7528\u4e8e #sec-bridge\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 *\/\n    #sec-bridge{\n      --brand: var(--brand,#2563EB);\n      position:relative; isolation:isolate; color:#0f172a;\n      padding:clamp(32px,6vw,72px) 0; min-height:220px; \/* \u89c6\u89c9\u627f\u6258\u9ad8\u5ea6 *\/\n    }\n    \/* \u80cc\u666f\u56fe\u5c42\uff1a\u56fe\u7247 + \u6ee4\u955c\uff08\u9971\u548c\/\u4eae\u5ea6\/\u5bf9\u6bd4\uff09 *\/\n    #sec-bridge::before{\n      content:\"\"; position:absolute; inset:0;\n      background: center \/ cover no-repeat var(--bg);\n      filter: saturate(.9) brightness(.95) contrast(1.08);\n      transform:translateZ(0);\n    }\n    \/* \u53e0\u52a0\u4e00\u5c42\u84dd\u9ed1\u6e10\u53d8\uff0c\u589e\u5f3a\u53ef\u8bfb\u6027 *\/\n    #sec-bridge::after{\n      content:\"\"; position:absolute; inset:0;\n      background:\n        radial-gradient(1200px 600px at 100% 0%, rgba(37,99,235,.28), transparent 60%),\n        linear-gradient(180deg, rgba(2,6,23,.55), rgba(2,6,23,.38));\n      mix-blend-mode:multiply;\n    }\n    #sec-bridge .wrap{max-width:1200px;margin:0 auto;padding:0 clamp(16px,2vw,24px); position:relative; z-index:1}\n    #sec-bridge header{text-align:center; color:#fff}\n    #sec-bridge h2{font-size:clamp(22px,2.2vw,30px);line-height:1.2;margin:0 0 10px}\n    #sec-bridge .lead{color:#e6eaff; margin:0 auto 22px; max-width:820px}\n\n    \/* \u4e24\u5217\u5e03\u5c40\uff1a\u5de6\u6587\u6848 + \u53f3\u8054\u7cfb\u5361 *\/\n    #sec-bridge .grid{display:grid;gap:18px;grid-template-columns:1fr;align-items:center}\n    @media(min-width:960px){ #sec-bridge .grid{grid-template-columns:2fr 1fr} }\n\n    \/* \u5de6\u4fa7\u8981\u70b9\u5217\u8868 *\/\n    #sec-bridge .bullets{display:grid;gap:10px;margin-top:6px}\n    #sec-bridge .item{display:flex;gap:10px;align-items:flex-start;color:#fff}\n    #sec-bridge .dot{width:10px;height:10px;border-radius:50%;background:#fff;opacity:.9;margin-top:6px}\n\n    \/* \u53f3\u4fa7\u8054\u7cfb\u5361\uff1a\u534a\u900f\u660e\u73bb\u7483\u6001 *\/\n    #sec-bridge .card{\n      background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.28);\n      border-radius:16px; padding:16px; color:#fff;\n      backdrop-filter: blur(4px) saturate(120%); box-shadow:0 10px 28px rgba(2,6,23,.25);\n      display:flex; flex-direction:column; gap:10px;\n    }\n    #sec-bridge .card .title{font-weight:800;font-size:15px}\n    #sec-bridge .actions{display:flex;justify-content:center}\n    #sec-bridge .btn{\n      display:inline-flex;align-items:center;justify-content:center;\n      padding:10px 16px;border-radius:10px;font-weight:800;text-decoration:none;white-space:nowrap;\n      background:var(--brand);color:#fff;border:1px solid rgba(255,255,255,.35)\n    }\n    #sec-bridge .muted{color:#e5e7eb;font-size:13px}\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"bridge-title\">Need help choosing a model?<\/h2>\n      <p class=\"lead\">Tell us your string count, outputs, and site voltage \u2014 we\u2019ll recommend the right HS or HD combiner.<\/p>\n    <\/header>\n\n    <div class=\"grid\">\n      <!-- \u5de6\u4fa7\u4eae\u70b9 -->\n      <div class=\"bullets\" role=\"list\" aria-label=\"Why reach out\">\n        <div class=\"item\" role=\"listitem\"><span class=\"dot\"><\/span><div>Sizing with verified wiring diagrams.<\/div><\/div>\n        <div class=\"item\" role=\"listitem\"><span class=\"dot\"><\/span><div>Protection stack matched to your inverter and standards.<\/div><\/div>\n        <div class=\"item\" role=\"listitem\"><span class=\"dot\"><\/span><div>Lead time &#038; shipping options for your region.<\/div><\/div>\n      <\/div>\n\n      <!-- \u53f3\u4fa7\u8054\u7cfb\u65b9\u5f0f -->\n      <aside class=\"card\" aria-label=\"Contact sales\">\n        <div class=\"title\">Talk to sales<\/div>\n        <div class=\"actions\">\n          <!-- \u90ae\u4ef6\u76f4\u8fde\uff08\u53ef\u6539\u4e3a \/contact\/ \u9875\u9762\uff09 -->\n          <a class=\"btn\" href=\"mailto:sales@sinobreaker.com?subject=PV%20Combiner%20Box%20Inquiry\">Contact us<\/a>\n        <\/div>\n        <div class=\"muted\">Prefer email? Send details to <strong>sales@sinobreaker.com<\/strong>.<\/div>\n      <\/aside>\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-05c18c4\" data-block-id=\"05c18c4\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-05c18c4-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-35faf38\" data-v=\"4\" data-block-id=\"35faf38\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-35faf38-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-35faf38-inner-blocks\">\n<section id=\"sec-about\" class=\"pv-sec pv-about\" aria-labelledby=\"about-title\">\n  <style>\n    \/* ===== \u4ec5\u4f5c\u7528\u4e8e #sec-about \u7684\u6837\u5f0f\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 ===== *\/\n    #sec-about{--brand:var(--brand,#2563EB); color:#0f172a; padding:clamp(28px,5vw,52px) 0;}\n    #sec-about .wrap{max-width:1200px;margin:0 auto;padding:0 clamp(16px,2vw,24px)}\n    #sec-about header{text-align:center}\n    #sec-about h2{font-size:clamp(22px,2.2vw,30px);line-height:1.2;margin:0 0 12px}\n    #sec-about .lead{color:#475569;margin:0 auto 26px;max-width:820px}\n\n    \/* \u4e09\u5217\u6805\u683c\uff1aWhy \/ What\u2019s inside \/ Where *\/\n    #sec-about .grid{display:grid; gap:18px; grid-template-columns:1fr}\n    @media(min-width:960px){ #sec-about .grid{grid-template-columns:repeat(3, minmax(0,1fr));} }\n\n    #sec-about .card{\n      background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:16px 16px 14px;\n      box-shadow:0 4px 14px rgba(2,6,23,.04); height:100%; display:flex; flex-direction:column; gap:10px;\n    }\n    #sec-about .ctitle{font-size:16px;font-weight:800}\n    #sec-about .list{margin:0;padding:0;list-style:none;display:grid;gap:8px}\n    #sec-about .item{display:flex;align-items:flex-start;gap:10px}\n    #sec-about .dot{width:10px;height:10px;border-radius:999px; background:var(--brand); margin-top:6px; flex:0 0 auto;}\n    #sec-about .muted{color:#64748b}\n    #sec-about .badge{display:inline-block;padding:4px 8px;border-radius:8px;border:1px solid #e2e8f0;background:#f8fafc;font-weight:700;font-size:12px;margin-right:6px}\n\n    \/* \u6b21\u7ea7\u5757\uff1aInstall & service *\/\n    #sec-about .subgrid{margin-top:18px; display:grid; gap:18px; grid-template-columns:1fr}\n    @media(min-width:960px){ #sec-about .subgrid{grid-template-columns:2fr 1fr;} }\n\n    \/* \u94fe\u63a5\u5916\u89c2\u4fdd\u6301\u5f53\u524d\u98ce\u683c\uff08\u65e0\u4e0b\u5212\u7ebf\u3001\u7ee7\u627f\u989c\u8272\uff09 *\/\n    #sec-about a{color:inherit; text-decoration:none}\n    #sec-about a:hover{opacity:.9}\n    \/* \u951a\u70b9\u6eda\u52a8\u504f\u79fb\uff0c\u907f\u514d\u88ab\u9875\u5934\u906e\u6321\uff08\u5982\u6709\u951a\u70b9\u65f6\u53ef\u590d\u7528\uff09 *\/\n    #sec-about [id^=\"about-\"]{ scroll-margin-top: 80px; }\n\n    #sec-about .note{margin-top:8px;color:#64748b;text-align:center}\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"about-title\">What is a PV Combiner Box?<\/h2>\n      <p class=\"lead\">\n        A PV combiner box aggregates multiple DC strings into one or more outputs and integrates protection and isolation.\n        It improves safety, uptime, and makes installation &#038; service faster.\n      <\/p>\n    <\/header>\n\n    <!-- ===== \u4e3b\u4e09\u5217\uff1aWhy \/ Inside\uff08\u542b\u5185\u94fe\uff09\/ Where ===== -->\n    <div class=\"grid\">\n      <!-- Why it matters -->\n      <article class=\"card\">\n        <div class=\"ctitle\">Why it matters<\/div>\n        <ul class=\"list\">\n          <li class=\"item\"><span class=\"dot\"><\/span><div>String aggregation reduces cable runs and simplifies layout.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Integrated protection limits fault energy and protects downstream equipment.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Built-in isolation enables safe maintenance and rapid troubleshooting.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Factory pre-wired options shorten install time and improve consistency.<\/div><\/li>\n        <\/ul>\n      <\/article>\n\n      <!-- What\u2019s inside\uff08\u7ec4\u4ef6\u540d\u63a5\u7ad9\u5185\u5206\u7c7b\u94fe\u63a5\uff1b\u201cmodel pages\u201d\u8df3\u5230 SEC2\uff09 -->\n      <article class=\"card\">\n        <div class=\"ctitle\">What\u2019s inside<\/div>\n        <ul class=\"list\">\n          <li class=\"item\"><span class=\"dot\"><\/span>\n            <div><a href=\"\/dc-fuse\/\"><strong>DC Fuse (gPV)<\/strong><\/a> \u2014 string-level overcurrent protection; coordinates with SPD.<\/div>\n          <\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span>\n            <div><a href=\"\/dc-spd\/\"><strong>DC SPD<\/strong><\/a> \u2014 clamps transient surges (Type II or I+II) to protect inverter &#038; wiring.<\/div>\n          <\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span>\n            <div><a href=\"\/DC-Switch-disconnector\"><strong>Switch Disconnector \/ MCB<\/strong><\/a> \u2014 load-break isolation; trip indication on MCB types.<\/div>\n          <\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span>\n            <div><a href=\"\/waterproof-distribution-box\/\"><strong>Waterproof Distribution Box<\/strong><\/a> \u2014 outdoor-rated enclosure with glands\/MC4 entries.<\/div>\n          <\/li>\n        <\/ul>\n        <div class=\"muted\">See <a href=\"#sec-models\">model pages<\/a> for ratings and wiring diagrams.<\/div>\n      <\/article>\n\n      <!-- Where it\u2019s used -->\n      <article class=\"card\">\n        <div class=\"ctitle\">Where it\u2019s used<\/div>\n        <ul class=\"list\">\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Residential rooftop (1\u20132 strings)<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Commercial &amp; industrial rooftops (2\u20136 strings)<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Ground-mount arrays and carports<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Retrofits that require standardized protection &#038; isolation<\/div><\/li>\n        <\/ul>\n      <\/article>\n    <\/div>\n\n    <!-- ===== \u6b21\u7ea7\u533a\uff1a\u5b89\u88c5 \/ \u7ef4\u62a4 & \u517c\u5bb9\uff08\u5fbd\u7ae0\u8df3\u5230 SEC2\uff0c\u8054\u7cfb\u4e3a\u90ae\u7bb1\uff09 ===== -->\n    <div class=\"subgrid\">\n      <article class=\"card\">\n        <div class=\"ctitle\">Install &#038; service<\/div>\n        <ul class=\"list\">\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Label strings clearly; keep cable routing tidy and strain-relieved.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Bond enclosure to earth; verify torque on fuse holders, SPD, and terminals.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Check polarity and insulation resistance before energizing.<\/div><\/li>\n          <li class=\"item\"><span class=\"dot\"><\/span><div>Record I\u2013V and protection settings for future maintenance.<\/div><\/li>\n        <\/ul>\n      <\/article>\n\n      <aside class=\"card\">\n        <div class=\"ctitle\">Compatibility<\/div>\n        <p class=\"muted\">\n          HS series targets 600\/1000&nbsp;V DC applications with a disconnector.\n          HD series targets 500\/1000&nbsp;V DC with a breaker\/MCB. Select based on string count, outputs, and site standards.\n        <\/p>\n        <div>\n          <a class=\"badge\" href=\"#sec-models\">HS: Disconnector<\/a>\n          <a class=\"badge\" href=\"#sec-models\">HD: Breaker\/MCB<\/a>\n        <\/div>\n      <\/aside>\n    <\/div>\n\n    <p class=\"note\">\n      Need help choosing a model? See the <a href=\"#sec-models\">grid above<\/a> or\n      <a href=\"mailto:sales@sinobreaker.com?subject=PV%20Combiner%20Box%20Inquiry\">contact us<\/a> for application sizing.\n    <\/p>\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-a9eecf7\" data-block-id=\"a9eecf7\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-a9eecf7-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0eb3a8e\" data-v=\"4\" data-block-id=\"0eb3a8e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0eb3a8e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0eb3a8e-inner-blocks\">\n<!-- ===============================================================\n  SEC5 \u2014 Applications \/ Use Cases\uff08\u56fe\u7247\u77e9\u9635\uff0c\u65e0\u6309\u94ae\u7248\u672c\uff09\n  \u6bcf\u5f20\u56fe\u7247\u5747\u4e3a Pexels \u76f4\u94fe\uff0c\u53ef\u957f\u671f\u5916\u94fe\u4f7f\u7528\u3002\n  \u6ce8\u91ca\u91cc\u6807\u6ce8\u4e86\u201c\u7b2c\u51e0\u884c\/\u7b2c\u51e0\u5217\/\u7b2c\u51e0\u5f20 + \u539f\u59cb\u9875\u9762 URL\u201d\uff0c\u4fbf\u4e8e\u4f60\u66ff\u6362\u6210\u672c\u5730\u56fe\u3002\n================================================================ -->\n<section id=\"sec-apps\" class=\"pv-sec pv-apps\" aria-labelledby=\"apps-title\">\n  <style>\n    \/* ===== \u4ec5\u4f5c\u7528\u4e8e #sec-apps \u7684\u6837\u5f0f\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 ===== *\/\n    #sec-apps{--brand:var(--brand,#2563EB); color:#0f172a; padding:clamp(28px,5vw,52px) 0;}\n    #sec-apps .wrap{max-width:1600px;margin:0 auto;padding:0 clamp(16px,2vw,24px)}\n    #sec-apps header{text-align:center}\n    #sec-apps h2{font-size:clamp(22px,2.2vw,30px);line-height:1.2;margin:0 0 12px}\n    #sec-apps .lead{color:#475569;margin:0 auto 24px;max-width:900px}\n\n    \/* \u56fe\u7247\u77e9\u9635\uff1a\u79fb\u52a8 1 \u5217 \/ \u5e73\u677f 2 \u5217 \/ \u684c\u9762 4 \u5217 *\/\n    #sec-apps .grid{display:grid;gap:14px;grid-template-columns:repeat(1,minmax(0,1fr))}\n    @media(min-width:720px){ #sec-apps .grid{grid-template-columns:repeat(2,minmax(0,1fr));} }\n    @media(min-width:1100px){ #sec-apps .grid{grid-template-columns:repeat(4,minmax(0,1fr));} }\n\n    \/* \u5361\u7247\uff1a\u80cc\u666f\u56fe + \u6e10\u53d8\u8986\u5c42 + 4:3 \u6bd4\u4f8b *\/\n    #sec-apps .card{\n      position:relative;border-radius:14px;overflow:hidden;border:1px solid #e2e8f0;\n      background: center\/cover no-repeat var(--img), #eef2f7; aspect-ratio:4\/3;\n      box-shadow:0 4px 14px rgba(2,6,23,.04); text-decoration:none; outline:none\n    }\n    #sec-apps .card::after{\n      content:\"\"; position:absolute; inset:0;\n      background:linear-gradient(180deg, rgba(2,6,23,0) 55%, rgba(2,6,23,.55) 100%);\n      pointer-events:none;\n    }\n    #sec-apps .label{\n      position:absolute; left:10px; top:10px; z-index:1;\n      background:#fff; border:1px solid #e2e8f0; color:#0f172a;\n      font-weight:800; font-size:12px; padding:6px 10px; border-radius:999px;\n    }\n    #sec-apps .title{\n      position:absolute; left:12px; right:12px; bottom:10px; z-index:1; color:#fff;\n      font-weight:900; letter-spacing:.2px; text-shadow:0 2px 8px rgba(0,0,0,.35);\n    }\n    #sec-apps .title small{display:block;font-weight:700;opacity:.85}\n\n    \/* \u52a0\u8f7d\u5931\u8d25\u5360\u4f4d\uff08\u82e5\u6781\u7aef\u60c5\u51b5\u4e0b\u56fe\u7247\u5931\u8d25\uff0c\u4f1a\u5207\u6362\u4e3a\u6d45\u8272\u5360\u4f4d\uff09 *\/\n    #sec-apps .card.noimg{background:#f1f5f9;}\n    #sec-apps .card.noimg::after{background:linear-gradient(180deg, rgba(2,6,23,0) 55%, rgba(2,6,23,.1) 100%);}\n    #sec-apps .card.noimg .title{color:#0f172a;text-shadow:none}\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"apps-title\">Applications &amp; Use Cases<\/h2>\n      <p class=\"lead\">Where PV combiner boxes fit best. Click any tile to explore models.<\/p>\n    <\/header>\n\n    <div class=\"grid\" role=\"list\">\n      <!-- \u884c1 \u52171\uff08\u7b2c1\u5f20\uff09Residential\n           Page: https:\/\/www.pexels.com\/photo\/close-up-of-solar-panels-on-a-roof-of-a-house-17965455\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Residential rooftop \u2014 Explore models\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/17965455\/pexels-photo-17965455.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Residential<\/span>\n        <div class=\"title\">Rooftop array <small>1\u20132 strings<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/17965455\/pexels-photo-17965455.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c1 \u52172\uff08\u7b2c2\u5f20\uff09Residential\n           Page: https:\/\/www.pexels.com\/photo\/technician-installing-solar-panel-on-rooftop-29206491\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Residential rooftop \u2014 technician installing\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/29206491\/pexels-photo-29206491.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Residential<\/span>\n        <div class=\"title\">Technician install <small>Compact footprint<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/29206491\/pexels-photo-29206491.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c1 \u52173\uff08\u7b2c3\u5f20\uff09Residential\n           Page: https:\/\/www.pexels.com\/photo\/modern-eco-friendly-home-with-solar-panels-32387194\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Residential home with panels\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/32387194\/pexels-photo-32387194.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Residential<\/span>\n        <div class=\"title\">Eco-friendly home <small>Pre-wired options<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/32387194\/pexels-photo-32387194.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c1 \u52174\uff08\u7b2c4\u5f20\uff09Commercial & Industrial\uff08\u66ff\u6362\u81ea Unsplash\uff09\n           Page: https:\/\/www.pexels.com\/photo\/aerial-view-of-solar-panels-on-industrial-building-29923348\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"C&#038;I rooftop \u2014 aerial view\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/29923348\/pexels-photo-29923348.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Commercial &amp; Industrial<\/span>\n        <div class=\"title\">Large rooftop <small>2\u20136 strings<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/29923348\/pexels-photo-29923348.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c2 \u52171\uff08\u7b2c5\u5f20\uff09Commercial & Industrial\uff08\u66ff\u6362\u81ea Unsplash\uff09\n           Page: https:\/\/www.pexels.com\/photo\/rooftop-solar-panels-for-sustainable-energy-30440512\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Factory rooftop solar\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/30440512\/pexels-photo-30440512.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Commercial &amp; Industrial<\/span>\n        <div class=\"title\">Factory array <small>Multiple outputs<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/30440512\/pexels-photo-30440512.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c2 \u52172\uff08\u7b2c6\u5f20\uff09Commercial & Industrial\uff08\u66ff\u6362\u81ea Unsplash\uff09\n           Page: https:\/\/www.pexels.com\/photo\/worker-standing-among-solar-panels-on-rooftop-19895884\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Industrial building solar\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/19895884\/pexels-photo-19895884.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Commercial &amp; Industrial<\/span>\n        <div class=\"title\">Industrial roof <small>Higher power density<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/19895884\/pexels-photo-19895884.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c2 \u52173\uff08\u7b2c7\u5f20\uff09Ground-mount\n           Page: https:\/\/www.pexels.com\/photo\/field-of-a-solar-panels-15751124\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Ground-mount solar field\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/15751124\/pexels-photo-15751124.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Ground-mount<\/span>\n        <div class=\"title\">Solar field <small>Centralized runs<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/15751124\/pexels-photo-15751124.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c2 \u52174\uff08\u7b2c8\u5f20\uff09Ground-mount\uff08\u66ff\u6362\u81ea Unsplash\uff09\n           Page: https:\/\/www.pexels.com\/photo\/aerial-view-of-solar-farm-14096751\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Large solar farm rows\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/14096751\/pexels-photo-14096751.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Ground-mount<\/span>\n        <div class=\"title\">Long rows <small>Optimized stringing<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/14096751\/pexels-photo-14096751.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c3 \u52171\uff08\u7b2c9\u5f20\uff09Ground-mount\uff08\u66ff\u6362\u81ea Unsplash\uff09\n           Page: https:\/\/www.pexels.com\/photo\/aerial-view-of-a-solar-farm-16659262\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Solar farm with mountains\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/16659262\/pexels-photo-16659262.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Ground-mount<\/span>\n        <div class=\"title\">Utility scale <small>Feeder combiner<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/16659262\/pexels-photo-16659262.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c3 \u52172\uff08\u7b2c10\u5f20\uff09Carports\n           Page: https:\/\/www.pexels.com\/photo\/cars-parked-on-parking-lot-under-the-solar-panels-9799756\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Parking lot under solar canopies\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/9799756\/pexels-photo-9799756.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Carports<\/span>\n        <div class=\"title\">Parking canopies <small>EV-ready sites<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/9799756\/pexels-photo-9799756.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c3 \u52173\uff08\u7b2c11\u5f20\uff09Carports\n           Page: https:\/\/www.pexels.com\/photo\/aerial-photography-of-solar-panels-9799727\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Aerial solar carport\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/9799727\/pexels-photo-9799727.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Carports<\/span>\n        <div class=\"title\">Aerial view <small>Shaded parking<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/9799727\/pexels-photo-9799727.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n\n      <!-- \u884c3 \u52174\uff08\u7b2c12\u5f20\uff09Carports\n           Page: https:\/\/www.pexels.com\/photo\/solar-charging-station-in-the-parking-lot-9800031\/ -->\n      <a class=\"card\" role=\"listitem\" aria-label=\"Solar charging station in parking lot\" href=\"#sec-models\"\n         style=\"--img:url('https:\/\/images.pexels.com\/photos\/9800031\/pexels-photo-9800031.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop')\">\n        <span class=\"label\">Carports<\/span>\n        <div class=\"title\">Charging bays <small>Cable management<\/small><\/div>\n        <img decoding=\"async\" alt=\"\" src=\"https:\/\/images.pexels.com\/photos\/9800031\/pexels-photo-9800031.jpeg?auto=compress&#038;cs=tinysrgb&#038;w=1600&#038;h=1200&#038;fit=crop\" hidden\n             onerror=\"this.closest('.card').classList.add('noimg');this.remove();\" onload=\"this.remove()\">\n      <\/a>\n    <\/div>\n  <\/div>\n\n  <!-- ===== \u5173\u952e\u8bcd\uff08\u4f9b\u590d\u5236\u5230 <meta name=\"keywords\">\uff09 =====\n  pv combiner box, dc combiner box, solar combiner box, pv string combiner,\n  dc fuse, dc spd, switch disconnector, waterproof distribution box,\n  HS series, HD series, 600V DC, 1000V DC, residential, commercial rooftop,\n  ground-mount, carports, 1 in 1 out, 2 in 1 out, 2 in 2 out, 4 in 2 out, 6 in 2 out\n  ====================================================== -->\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-c2b815b\" data-block-id=\"c2b815b\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-c2b815b-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-41935dd\" data-v=\"4\" data-block-id=\"41935dd\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-41935dd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-41935dd-inner-blocks\">\n<!-- ===============================================================\n  SEC6 \u2014 Application Guidance Bridge\uff08\u5168\u5bbd\u89c6\u89c9\u7f13\u51b2 + \u5e94\u7528\u8bf4\u660e\uff09\n  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   radial-gradient(1200px 600px at 100% 0%, rgba(37,99,235,.45), rgba(37,99,235,.15) 60%),\n        linear-gradient(180deg, #0b1f49, #1b3ea8 60%, #2563EB);\n    }\n    #sec-bridge-apps::after{\n      content:\"\"; position:absolute; inset:0; z-index:0;\n      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));\n    }\n\n    #sec-bridge-apps .wrap{max-width:1200px;margin:0 auto;padding:0 clamp(16px,2vw,24px); position:relative; z-index:1}\n    #sec-bridge-apps header{text-align:center}\n    #sec-bridge-apps h2{font-size:clamp(22px,2.2vw,30px);line-height:1.2;margin:0 0 8px}\n    #sec-bridge-apps .lead{color:#e6eaff;margin:0 auto 18px;max-width:900px}\n\n    \/* \u6805\u683c\uff1a\u4fdd\u6301\u4f60\u7684\u539f\u6837\u5f0f *\/\n    #sec-bridge-apps .grid{display:grid;gap:14px;grid-template-columns:1fr}\n    @media(min-width:960px){ #sec-bridge-apps .grid{grid-template-columns:repeat(4,minmax(0,1fr));} }\n\n    \/* \u5361\u7247\uff1a\u4fdd\u6301\u4f60\u7684\u539f\u6837\u5f0f *\/\n    #sec-bridge-apps .card{\n      background:rgba(255,255,255,.10); border:1px solid rgba(255,255,255,.35);\n      border-radius:16px; padding:14px; backdrop-filter: blur(4px) saturate(120%);\n      display:flex; flex-direction:column; gap:8px; min-height:200px;\n      box-shadow:0 10px 28px rgba(2,6,23,.25);\n    }\n    \/* \u6807\u9898\u7528 div\uff0c\u907f\u514d\u5168\u7ad9 h3 \u653e\u5927\u5b57\u4f53 *\/\n    #sec-bridge-apps .title{font-weight:900; letter-spacing:.2px; line-height:1.2; margin:0}\n    \/* \u5bf9\u9f50\u7528\uff1a\u5728 1\/3\/4 \u5361\u7247\u6807\u9898\u4e0b\u52a0\u4e00\u884c\u7a7a\u767d\uff08\u7b49\u4e8e\u4e00\u884c\u6587\u5b57\u9ad8\u5ea6\uff09 *\/\n    #sec-bridge-apps .title-gap{height:1.2em}\n\n    #sec-bridge-apps .pill{\n      display:inline-block; padding:4px 8px; border-radius:999px;\n      background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.35);\n      font-size:12px; font-weight:800; color:#fff; margin-right:6px\n    }\n    #sec-bridge-apps .desc{color:#eef; line-height:1.55; font-size:14px}\n    #sec-bridge-apps .hint{opacity:.9; font-size:12px}\n    #sec-bridge-apps a{color:#fff;text-decoration:none;border-bottom:1px dashed rgba(255,255,255,.45)}\n    #sec-bridge-apps a:hover{opacity:.9}\n    #sec-bridge-apps .cta{margin-top:12px;text-align:center}\n  <\/style>\n\n  <div class=\"wrap\">\n    <header>\n      <h2 id=\"apps-bridge-title\">Application Guidance \u2014 When to choose HS vs HD<\/h2>\n      <p class=\"lead\">Quick tips by site type: typical string counts, outputs, switchgear preference, and enclosure notes.<\/p>\n    <\/header>\n\n    <div class=\"grid\" role=\"list\">\n      <!-- 1) Residential\uff1a\u6807\u9898\u540e\u52a0\u4e00\u884c\u7a7a\u767d\u5bf9\u9f50 -->\n      <article class=\"card\" role=\"listitem\" aria-label=\"Residential rooftops\">\n        <div class=\"title\">Residential rooftops<\/div>\n        <div class=\"title-gap\" aria-hidden=\"true\"><\/div> <!-- \u7a7a\u51fa\u4e00\u884c\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 -->\n        <div>\n          <span class=\"pill\">1\u20132 strings<\/span>\n          <span class=\"pill\">1 output<\/span>\n        <\/div>\n        <p class=\"desc\">\n          For compact arrays or <em>hybrid inverter<\/em> homes, <strong>HD<\/strong> is often preferred for the\n          breaker\/MCB convenience (trip indication &amp; reset). Choose <strong>HS<\/strong> if a dedicated\n          <em>DC isolator<\/em> is required by local spec. Enclosures: IP65\/66.\n        <\/p>\n        <div class=\"hint\">Explore models in the <a href=\"#sec-models\">grid above<\/a>.<\/div>\n      <\/article>\n\n      <!-- 2) Commercial & Industrial\uff1a\u4e24\u884c\u6807\u9898\uff0c\u4e0d\u52a0\u7a7a\u884c -->\n      <article class=\"card\" role=\"listitem\" aria-label=\"Commercial &#038; industrial rooftops\">\n        <div class=\"title\">Commercial &amp; industrial<br>rooftops<\/div>\n        <div>\n          <span class=\"pill\">2\u20136 strings<\/span>\n          <span class=\"pill\">1\u20132 outputs<\/span>\n        <\/div>\n        <p class=\"desc\">\n          For multi-MPPT inverters and higher power density, <strong>HS<\/strong> (with disconnector)\n          is commonly specified; <strong>HD<\/strong> fits sites that prefer an integrated breaker\/MCB.\n          Pre-wired \/ pre-assembled options reduce install time.\n        <\/p>\n        <div class=\"hint\">Typical: select models based on strings and outputs.<\/div>\n      <\/article>\n\n      <!-- 3) Ground-mount\uff1a\u6807\u9898\u540e\u52a0\u4e00\u884c\u7a7a\u767d\u5bf9\u9f50 -->\n      <article class=\"card\" role=\"listitem\" aria-label=\"Ground-mount solar farms\">\n        <div class=\"title\">Ground-mount solar farms<\/div>\n        <div class=\"title-gap\" aria-hidden=\"true\"><\/div> <!-- \u7a7a\u51fa\u4e00\u884c\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 -->\n        <div>\n          <span class=\"pill\">2\u20136 strings<\/span>\n          <span class=\"pill\">feeder combiner<\/span>\n        <\/div>\n        <p class=\"desc\">\n          Long runs benefit from centralized <strong>HS<\/strong> combiners. For <em>utility-scale<\/em> feeders,\n          verify protection class and cable sizing. IP66 enclosure helps in harsh environments.\n        <\/p>\n        <div class=\"hint\">See the Protection Stack for standards, then pick models.<\/div>\n      <\/article>\n\n      <!-- 4) Carports\uff1a\u6807\u9898\u540e\u52a0\u4e00\u884c\u7a7a\u767d\u5bf9\u9f50 -->\n      <article class=\"card\" role=\"listitem\" aria-label=\"Solar carports &#038; parking\">\n        <div class=\"title\">Solar carports &amp; parking<\/div>\n        <div class=\"title-gap\" aria-hidden=\"true\"><\/div> <!-- \u7a7a\u51fa\u4e00\u884c\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 -->\n        <div>\n          <span class=\"pill\">2\u20134 strings<\/span>\n          <span class=\"pill\">1\u20132 outputs<\/span>\n        <\/div>\n        <p class=\"desc\">\n          Weather-exposed structures often use IP66 boxes. Choose <strong>HD<\/strong> for breaker reset convenience,\n          or <strong>HS<\/strong> where an isolator is mandated. Works for <em>off-grid<\/em> EV canopies as well.\n        <\/p>\n        <div class=\"hint\"><a href=\"#sec-models\">Browse models<\/a> or email sales for sizing.<\/div>\n      <\/article>\n    <\/div>\n\n    <div class=\"cta\">\n      <a href=\"mailto:sales@sinobreaker.com?subject=Application%20sizing%20-%20PV%20combiner%20box\">sales@sinobreaker.com<\/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-fa5f752\" data-block-id=\"fa5f752\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-fa5f752-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7be10d3\" data-v=\"4\" data-block-id=\"7be10d3\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7be10d3-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7be10d3-inner-blocks\">\n<!-- ===============================================================\n  SEC7 \u2014 Why choose us\uff08\u4fee\u6b63\u7248\uff1a\u5f3a\u4f5c\u7528\u57df\u3001\u9632\u6837\u5f0f\u51b2\u7a81\uff09\n  \u8bf4\u660e\uff1a\n  - \u6240\u6709\u6837\u5f0f\u7c7b\u7edf\u4e00\u6dfb\u52a0 wu- \u524d\u7f00\uff0c\u907f\u514d\u4e0e\u5168\u7ad9 .card\/.grid \u7b49\u51b2\u7a81\n  - \u4ec5\u5728\u672c\u6bb5\u843d\u4f5c\u7528\u57df\u5185\u505a\u5c0f\u8303\u56f4\u7684 margin\/reset\n  - \u4fdd\u7559 5 \u4e2a\u5361\u7247\uff1b\u6587\u6848\u82f1\u6587\uff1b\u4ee3\u7801\u6ce8\u91ca\u4e2d\u6587\n================================================================ -->\n<section id=\"sec-why-us\" class=\"pv-sec wu\" aria-labelledby=\"wu-title\">\n  <style>\n    \/* ===== \u4ec5\u4f5c\u7528\u4e8e #sec-why-us \u7684\u6837\u5f0f\uff08\u4e2d\u6587\u6ce8\u91ca\uff09 ===== *\/\n    #sec-why-us{ --brand:var(--brand,#2563EB); background:#f8fafc; color:#0f172a;\n      padding:clamp(28px,5vw,56px) 0; border-top:1px solid #e2e8f0; isolation:isolate;}\n    \/* \u4f5c\u7528\u57df\u5185\u8f7b\u91cf reset\uff0c\u907f\u514d\u5168\u7ad9\u6837\u5f0f\u5e72\u6270 *\/\n    #sec-why-us .wu-wrap *{ box-sizing:border-box; }\n    #sec-why-us .wu-wrap p,#sec-why-us .wu-wrap ul,#sec-why-us .wu-wrap li,\n    #sec-why-us .wu-wrap h2,#sec-why-us .wu-wrap h3,#sec-why-us .wu-wrap h4{\n      margin:0; padding:0;\n    }\n\n    #sec-why-us .wu-wrap{max-width:1200px;margin:0 auto;padding:0 clamp(16px,2vw,24px)}\n    #sec-why-us .wu-header{ text-align:center; margin-bottom:18px;}\n    #sec-why-us .wu-h2{ font-size:clamp(22px,2.2vw,30px); line-height:1.2; font-weight:900;}\n    #sec-why-us .wu-lead{ color:#475569; max-width:900px; margin:8px auto 0; }\n\n    \/* \u6805\u683c\uff1a\u79fb\u52a81\u5217\u3001\u5e73\u677f2\u5217\u3001\u684c\u97623\u5217\uff08\u4e0e\u539f\u7248\u4e00\u81f4\uff09 *\/\n    #sec-why-us .wu-grid{ display:grid; gap:14px; grid-template-columns:1fr; margin-top:18px;}\n    @media(min-width:780px){ #sec-why-us .wu-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }\n    @media(min-width:1080px){ #sec-why-us .wu-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); } }\n\n    \/* \u5361\u7247\uff08\u767d\u5e95 + \u9634\u5f71\uff09 *\/\n    #sec-why-us .wu-card{\n      background:#fff; border:1px solid #e2e8f0; border-radius:16px;\n      box-shadow:0 8px 24px rgba(2,6,23,.06);\n      padding:16px; display:flex; gap:12px; align-items:flex-start;\n    }\n    #sec-why-us .wu-icon{\n      flex:0 0 44px; height:44px; border-radius:12px; background:rgba(37,99,235,.08);\n      display:grid; place-items:center; border:1px solid rgba(37,99,235,.18)\n    }\n    #sec-why-us .wu-icon svg{ width:24px; height:24px; color:var(--brand); }\n\n    #sec-why-us .wu-title{ font-weight:900; margin:2px 0 6px; }\n    #sec-why-us .wu-desc{ color:#475569; line-height:1.6; }\n    #sec-why-us .wu-list{ margin-top:6px; padding-left:18px; }\n    #sec-why-us .wu-list li{ margin:2px 0; }\n\n    \/* CTA \u6309\u94ae\uff08\u5982\u9700\u4f7f\u7528\uff0c\u53ef\u4fdd\u7559\uff1b\u5982\u4e0d\u9700\u8981\u53ef\u5220\u9664\uff09 *\/\n    #sec-why-us .wu-cta{ display:flex; justify-content:center; margin-top:16px;}\n    #sec-why-us .wu-btn{\n      display:inline-flex; align-items:center; justify-content:center; gap:8px;\n      padding:12px 18px; border-radius:12px; background:var(--brand); color:#fff!important;\n      font-weight:900; border:1px solid #1e40af; text-decoration:none; box-shadow:0 8px 20px rgba(37,99,235,.25)\n    }\n    #sec-why-us .wu-btn:hover{ filter:brightness(.96); }\n  <\/style>\n\n  <div class=\"wu-wrap\">\n    <div class=\"wu-header\">\n      <div id=\"wu-title\" class=\"wu-h2\" role=\"heading\" aria-level=\"2\">Why Choose Us<\/div>\n      <p class=\"wu-lead\">Factory direct supply, fast delivery, engineering support, and flexible customization for PV combiner boxes.<\/p>\n    <\/div>\n\n    <div class=\"wu-grid\" role=\"list\">\n      <!-- 1. \u5de5\u5382\u76f4\u4f9b -->\n      <article class=\"wu-card\" role=\"listitem\" aria-label=\"Factory direct\">\n        <div class=\"wu-icon\" aria-hidden=\"true\">\n          <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"M3 21V9l6 4V9l6 4V7l6 4v10H3Z\"\/><path d=\"M7 21v-3m4 3v-3m4 3v-3\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"wu-desc\">\n          <div class=\"wu-title\">Factory-direct &amp; reliable supply<\/div>\n          <p>Stable production and consistent quality with friendly MOQs for pilot runs and scale-ups.<\/p>\n          <ul class=\"wu-list\">\n            <li>Pre-wired assemblies available<\/li>\n            <li>Spare parts stocked (fuse links, SPD modules, switches)<\/li>\n          <\/ul>\n        <\/div>\n      <\/article>\n\n      <!-- 2. \u65b9\u6848\u9009\u578b\u4e0e\u5de5\u7a0b\u652f\u6301\uff08\u542b\u201c\u5feb\u901f\u54cd\u5e94&\u6e05\u6670\u6587\u6863\u201d\uff09 -->\n      <article class=\"wu-card\" role=\"listitem\" aria-label=\"Engineering support\">\n        <div class=\"wu-icon\" aria-hidden=\"true\">\n          <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"M4 12a8 8 0 0 1 16 0v6a3 3 0 0 1-3 3h-2\"\/><path d=\"M4 18v-6\"\/><path d=\"M8 21H7a3 3 0 0 1-3-3\"\/>\n            <circle cx=\"12\" cy=\"12\" r=\"1.6\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"wu-desc\">\n          <div class=\"wu-title\">Sizing &amp; wiring guidance<\/div>\n          <p>Tell us your string count, outputs, and site voltage \u2014 we\u2019ll recommend HS or HD models and share wiring diagrams.<\/p>\n          <ul class=\"wu-list\">\n            <li>Specs &amp; wiring diagrams<\/li>\n            <li>Protection-stack coordination (gPV fuse \/ DC SPD \/ isolator or MCB)<\/li>\n            <li>Quick responses with clear docs<\/li>\n          <\/ul>\n        <\/div>\n      <\/article>\n\n      <!-- 3. \u5feb\u901f\u4ea4\u4ed8\u4e0e\u7269\u6d41 -->\n      <article class=\"wu-card\" role=\"listitem\" aria-label=\"Fast delivery\">\n        <div class=\"wu-icon\" aria-hidden=\"true\">\n          <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"m13 2-9 13h7l-1 7 9-13h-7l1-7Z\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"wu-desc\">\n          <div class=\"wu-title\">Fast lead time &amp; flexible logistics<\/div>\n          <p>Component inventory and pre-assembly shorten delivery. Global shipping by sea, air, or express.<\/p>\n          <ul class=\"wu-list\">\n            <li>Flexible MOQ for trials<\/li>\n            <li>Packed with clear labeling &amp; docs<\/li>\n          <\/ul>\n        <\/div>\n      <\/article>\n\n      <!-- 4. OEM\/ODM \u5b9a\u5236 -->\n      <article class=\"wu-card\" role=\"listitem\" aria-label=\"OEM and ODM\">\n        <div class=\"wu-icon\" aria-hidden=\"true\">\n          <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <rect x=\"3\" y=\"8\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M7 8V5a2 2 0 0 1 2-2h6a2 2 0 0 1 2 2v3\"\/>\n            <path d=\"M8 13h8M8 17h5\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"wu-desc\">\n          <div class=\"wu-title\">OEM \/ ODM customization<\/div>\n          <p>Private label and custom layouts to match your inverter and site standards.<\/p>\n          <ul class=\"wu-list\">\n            <li>Strings\/outputs mapping &amp; enclosure sizing<\/li>\n            <li>Labeling layout and pre-wired options<\/li>\n          <\/ul>\n        <\/div>\n      <\/article>\n\n      <!-- 5. \u8d28\u91cf\u4e0e\u53ef\u7ef4\u62a4\u6027 -->\n      <article class=\"wu-card\" role=\"listitem\" aria-label=\"Build quality &#038; serviceability\">\n        <div class=\"wu-icon\" aria-hidden=\"true\">\n          <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"M12 22s8-3 8-10V6l-8-4-8 4v6c0 7 8 10 8 10Z\"\/><path d=\"m9 12 2 2 4-4\"\/>\n          <\/svg>\n        <\/div>\n        <div class=\"wu-desc\">\n          <div class=\"wu-title\">Robust build &amp; easy service<\/div>\n          <p>Clear internal layout and replaceable protection modules minimize downtime at site.<\/p>\n          <ul class=\"wu-list\">\n            <li>Service kits &amp; documentation on request<\/li>\n            <li>Spare parts continuity across HS \/ HD families<\/li>\n          <\/ul>\n        <\/div>\n      <\/article>\n    <\/div>\n\n    <!-- \u5982\u9700 CTA\uff0c\u53ef\u4fdd\u7559\uff1b\u4e0d\u9700\u8981\u53ef\u5220\u9664 -->\n    <!--\n    <div class=\"wu-cta\">\n      <a class=\"wu-btn\" href=\"mailto:sales@sinobreaker.com?subject=PV%20Combiner%20Box%20-%20Inquiry\">Talk to sales<\/a>\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-14d6344\" data-block-id=\"14d6344\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-14d6344-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d31586b\" data-v=\"4\" data-block-id=\"d31586b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d31586b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d31586b-inner-blocks\">\n<section id=\"sec-tech\" class=\"section-tech\" style=\"padding:72px 0; background:#f7f9fc;\">\n  <!-- \u4ec5\u4ee3\u7801\u6ce8\u91ca\uff1a\u6280\u672f\u4e0e\u8d44\u6e90\uff0c\u907f\u514d\u201c\u4e0b\u8f7d\u4e2d\u5fc3\u201d\u8bcd\u6c47\uff1b\u5f15\u5bfc\u5230\u5404\u578b\u53f7\u9875\u9762 -->\n  <div class=\"container\" style=\"max-width:1100px; margin:0 auto; padding:0 20px;\">\n    <header style=\"text-align:center; margin-bottom:28px;\">\n      <h2 style=\"font-size:28px; margin:0 0 10px;\">Technical &amp; Resources<\/h2>\n      <p style=\"color:#475569; margin:0;\">Datasheets, wiring notes, installation guidance, and standards relevant to PV combiner boxes.<\/p>\n    <\/header>\n\n    <!-- Cards: Datasheets \/ Installation \/ Service \/ Standards -->\n    <div class=\"grid\" style=\"display:grid; grid-template-columns:repeat(1,minmax(0,1fr)); gap:16px;\">\n      <article class=\"card\" style=\"background:#fff; border:1px solid #e5e7eb; border-radius:16px; padding:20px;\">\n        <h3 style=\"margin:0 0 8px; font-size:20px;\">Datasheets &amp; Wiring Diagrams<\/h3>\n        <p style=\"margin:0 0 12px;\">Each HS\/HD model provides a full specification sheet with torque settings and rated values. Wiring diagrams show string inputs, fuse positions, SPD location, and the isolator\/breaker layout.<\/p>\n        <ul style=\"margin:0 0 8px 18px;\">\n          <li>Open any model card in <a href=\"#sec-models\">SEC2 Product Range<\/a> and click <em>\u201cSpecs &amp; wiring\u201d<\/em>.<\/li>\n          <li>Background documents: <a href=\"\/dc-fuse\">DC Fuse (gPV)<\/a>, <a href=\"\/dc-spd\">DC SPD<\/a>, <a href=\"\/dc-switch-disconnector\">DC Switch Disconnector<\/a>, <a href=\"\/dc-circuit-breaker\">DC circuit Breaker\/MCB<\/a>.<\/li>\n        <\/ul>\n      <\/article>\n\n      <article class=\"card\" style=\"background:#fff; border:1px solid #e5e7eb; border-radius:16px; padding:20px;\">\n        <h3 style=\"margin:0 0 8px; font-size:20px;\">Installation Guide<\/h3>\n        <ol style=\"margin:0 0 12px 18px;\">\n          <li><strong>Mounting:<\/strong> fix the enclosure on wall\/rack\/backplate; confirm outdoor rating (IP65\/66).<\/li>\n          <li><strong>Wiring:<\/strong> route strings via glands; tighten terminals to rated torque; follow polarity labels.<\/li>\n          <li><strong>Bonding &amp; Grounding:<\/strong> connect protective earth; verify continuity to fuse holders, SPD, and chassis.<\/li>\n          <li><strong>Verification:<\/strong> record I\u2013V data; check SPD indicators; test disconnector\/breaker operation before energizing.<\/li>\n        <\/ol>\n        <p style=\"margin:0;\">Commissioning tip: follow IEC 62446 recommendations for documentation and testing.<\/p>\n      <\/article>\n\n      <article class=\"card\" style=\"background:#fff; border:1px solid #e5e7eb; border-radius:16px; padding:20px;\">\n        <h3 style=\"margin:0 0 8px; font-size:20px;\">Service &amp; Maintenance<\/h3>\n        <ul style=\"margin:0 0 12px 18px;\">\n          <li><strong>Fuses:<\/strong> replace blown gPV 10\u00d738&nbsp;mm (or rated equivalent) only.<\/li>\n          <li><strong>SPDs:<\/strong> check visual status; replace pluggable cartridges if tripped.<\/li>\n          <li><strong>Switch\/MCB:<\/strong> operate periodically (no-load) to keep contacts clean; confirm trip\/reset on MCB types.<\/li>\n          <li><strong>Enclosure:<\/strong> inspect seals, glands, labels; clean surface and verify ingress protection.<\/li>\n        <\/ul>\n        <p style=\"margin:0;\">Recommended interval: every <strong>6\u201312 months<\/strong> or after severe weather events.<\/p>\n      <\/article>\n\n      <article class=\"card\" style=\"background:#fff; border:1px solid #e5e7eb; border-radius:16px; padding:20px;\">\n        <h3 style=\"margin:0 0 8px; font-size:20px;\">Standards &amp; References<\/h3>\n        <p style=\"margin:0 0 8px;\">Commonly referenced documents for PV combiner boxes and components:<\/p>\n        <ul style=\"margin:0 0 8px 18px;\">\n          <li>IEC 60269-6 \u2014 gPV fuse links<\/li>\n          <li>IEC 61643-31 \u2014 DC surge protective devices<\/li>\n          <li>IEC 60947-3 \u2014 switch disconnectors<\/li>\n          <li>IEC 61439-2 \u2014 low-voltage switchgear assemblies<\/li>\n          <li>UL 1741 \/ UL 508A \u2014 applicable for certain North America builds<\/li>\n        <\/ul>\n        <p style=\"margin:0;\">External links: <a href=\"https:\/\/webstore.iec.ch\" rel=\"noopener\">IEC Webstore<\/a> \u00b7 <a href=\"https:\/\/standardscatalog.ul.com\" rel=\"noopener\">UL Standards<\/a><\/p>\n      <\/article>\n    <\/div>\n\n    <div style=\"text-align:center; margin-top:20px;\">\n      <a href=\"#sec-models\" style=\"color:var(--brand,#2563EB); text-decoration:underline;\">Back to models<\/a>\n      <span style=\"opacity:.6;\"> \u00b7 <\/span>\n      <a href=\"\/contact-us\" style=\"color:var(--brand,#2563EB); text-decoration:underline;\">Ask for wiring guidance<\/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-4ed7416\" data-block-id=\"4ed7416\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-4ed7416-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4752dde\" data-v=\"4\" data-block-id=\"4752dde\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4752dde-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4752dde-inner-blocks\">\n<section id=\"sec-contact\" class=\"section-contact\" style=\"padding:64px 0; background:linear-gradient(180deg,#0b3360 0%, #123e78 100%); color:#fff;\">\n  <!-- \u4ec5\u4ee3\u7801\u6ce8\u91ca\uff1a\u82f1\u6587UI\uff0c\u4e2d\u6587\u6ce8\u91ca\uff1b\u54c1\u724c\u4e3b\u8272\u5728\u5168\u7ad9\u901a\u8fc7 --brand \u63a7\u5236 -->\n  <div class=\"container\" style=\"max-width:1100px; margin:0 auto; padding:0 20px; text-align:center;\">\n    <h2 style=\"font-size:32px; line-height:1.2; margin:0 0 12px;\">Need help choosing a model?<\/h2>\n    <p style=\"opacity:.95; margin:0 auto 24px; max-width:820px;\">\n      Tell us your string count, outputs (1 or 2), array voltage, cable length, and site standards \u2014 we\u2019ll recommend the right HS or HD PV combiner box with verified wiring diagrams.\n    <\/p>\n\n    <ul style=\"list-style:disc; text-align:left; margin:0 auto 24px; padding-left:20px; max-width:760px; opacity:.95;\">\n      <li>Sizing with verified wiring diagrams.<\/li>\n      <li>Protection stack matched to your inverter and standards.<\/li>\n      <li>Lead time &amp; shipping options for your region.<\/li>\n    <\/ul>\n\n    <div class=\"actions\" style=\"display:flex; gap:16px; justify-content:center; flex-wrap:wrap;\">\n      <a href=\"\/contact-us\" class=\"btn\" style=\"padding:12px 20px; background:var(--brand,#2563EB); color:#fff; border-radius:12px; font-weight:600; text-decoration:none;\">Contact us<\/a>\n      <a href=\"mailto:sales@sinobreaker.com\" class=\"btn ghost\" style=\"padding:12px 20px; background:rgba(255,255,255,.1); color:#fff; border:1px solid rgba(255,255,255,.35); border-radius:12px; font-weight:600; text-decoration:none;\">Email sales@sinobreaker.com<\/a>\n      <a href=\"#sec-models\" class=\"btn link\" style=\"padding:12px 20px; color:#fff; text-decoration:underline;\">Browse models<\/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-141cfa0\" data-block-id=\"141cfa0\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-141cfa0-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-c5ab44b\" data-v=\"4\" data-block-id=\"c5ab44b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-c5ab44b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-c5ab44b-inner-blocks\">\n<section id=\"sec-faq\" class=\"section-faq\" style=\"padding:72px 0;\">\n  <style>\n    #sec-faq .container{max-width:1000px;margin:0 auto;text-align:center;}\n    #sec-faq .faq-list{display:flex;flex-direction:column;align-items:center;gap:12px;}\n    #sec-faq .faq-item{\n      width:100%;\n      max-width:820px;\n      margin:0 auto;\n      border:1px solid #e5e7eb; border-radius:12px; padding:16px;\n      background:#fff;\n      text-align:left;\n    }\n    #sec-faq summary{cursor:pointer;font-weight:600;list-style:none;}\n    #sec-faq summary::-webkit-details-marker{display:none;}\n    #sec-faq .faq-footer{text-align:center;margin-top:16px;}\n    @media (max-width:640px){ #sec-faq .faq-item{max-width:100%;} }\n  <\/style>\n\n  <div class=\"container\" style=\"padding:0 20px;\">\n    <header style=\"margin-bottom:24px;\">\n      <h2 style=\"font-size:28px; margin:0 0 10px;\">FAQ<\/h2>\n      <p style=\"color:#475569; margin:0;\">Common questions about PV combiner boxes, selection, and maintenance.<\/p>\n    <\/header>\n\n    <div class=\"faq-list\">\n      <details class=\"faq-item\" open>\n        <summary>What is a PV combiner box and why do I need it?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>A <strong>solar PV combiner box<\/strong> (also called a PV combiner box) merges multiple DC strings into one or two outputs, integrates protection (gPV fuses, DC SPD) and isolation (disconnector\/MCB), and provides a safe service point. It reduces field faults and simplifies commissioning.<\/p>\n          <p>Browse models in <a href=\"#sec-models\">SEC2 Product Range<\/a>.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>What\u2019s the difference between HS and HD series?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p><strong>HS<\/strong> integrates a DC switch disconnector (per IEC 60947-3) with Fuse + SPD; <strong>HD<\/strong> uses a breaker\/MCB with Fuse + SPD. Choose based on isolation preference, trip indication needs, and site standards.<\/p>\n          <p>Learn more: <a href=\"\/dc-disconnector\">DC Disconnector<\/a> \u00b7 <a href=\"\/dc-breaker\">DC Breaker\/MCB<\/a>.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>How do \u201cX in Y out\u201d and \u201cX string\u201d naming relate?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>HS pages use the <em>X in Y out<\/em> format (e.g., 2 in 2 out) to reflect outputs; HD pages use <em>X string<\/em> counts (e.g., 2\/3\/4\/6 string). This keeps navigation clear and avoids keyword overlap across pages.<\/p>\n          <p>Examples: <a href=\"\/product\/pv-combiner-box-2-in-2-out\/\">HS-2\/2<\/a> \u00b7 <a href=\"\/product\/4-string-pv-combiner-box-dual-outputs\/\">HD-4\/2<\/a>.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>Which voltage ratings are supported?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>Typical builds support <strong>1000 V DC<\/strong> and <strong>1500 V DC<\/strong>. Final selection depends on array open-circuit voltage (VOC) and inverter DC limits. We can verify for your project at <a href=\"\/contact-us\">\/contact-us<\/a>.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>What protection devices are inside?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>A standard stack includes <strong>gPV fuses<\/strong> (string over-current), <strong>DC SPD<\/strong> (surge protection), and a <strong>main isolator or DC breaker<\/strong> for safe maintenance.<\/p>\n          <p>Deep dives: <a href=\"\/dc-fuse\">\/dc-fuse<\/a> \u00b7 <a href=\"\/dc-spd\">\/dc-spd<\/a> \u00b7 <a href=\"\/dc-disconnector\">\/dc-disconnector<\/a> \u00b7 <a href=\"\/dc-breaker\">\/dc-breaker<\/a>.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>How do I choose between 1 or 2 outputs?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>Use <strong>1 output<\/strong> for a single MPPT or single DC input. Select <strong>2 outputs<\/strong> (e.g., 2 in 2 out, 4 in 2 out) for dual-MPPT inverters or when split runs reduce cable loss.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>Can I mix different string currents or lengths?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>Best practice is symmetrical strings (same module count\/orientation). If mixing is unavoidable, size fuses for the highest backfeed current and confirm SPD U<sub>CPV<\/sub> margin to array voltage.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>How are fuses and SPDs maintained?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>gPV fuses are field-replaceable. SPDs have visual indicators and, on many builds, pluggable cartridges. Inspect during inverter service windows and after severe weather.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>Do you provide wiring diagrams and labels?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>Yes. Each model\u2019s <em>\u201cSpecs &amp; wiring\u201d<\/em> anchor includes diagrams, torque values, labeling, and tightening sequence. Start from <a href=\"#sec-models\">SEC2 Product Range<\/a> or <a href=\"\/contact-us\">contact us<\/a> for project files.<\/p>\n        <\/div>\n      <\/details>\n\n      <details class=\"faq-item\">\n        <summary>Where can I learn about the standards you reference?<\/summary>\n        <div style=\"margin-top:10px;\">\n          <p>See <a href=\"https:\/\/webstore.iec.ch\" rel=\"noopener\">IEC Webstore<\/a> for IEC 60269-6, 61643-31, 60947-3, 61439-2. For North America builds, consult <a href=\"https:\/\/standardscatalog.ul.com\" rel=\"noopener\">UL Standards<\/a>.<\/p>\n        <\/div>\n      <\/details>\n    <\/div>\n\n    <div class=\"faq-footer\">\n      <a href=\"#sec-contact\" style=\"color:var(--brand,#2563EB); text-decoration:underline;\">Still have questions? Talk to us<\/a>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>PV Combiner Box (500V\/1000V DC) Fuse + SPD + Isolator\/Breaker in one outdoor IP65\/66 enclosure for safe, fast string aggregation. Product Range \u2014 HS &amp; HD Series Choose a model below. Use filters (Strings \/ Outputs \/ Switch Type) to refine. Popular searches: 2 string PV combiner box \u00b7 3 string PV combiner box \u00b7 4 string PV combiner box \u00b7 6 string PV combiner box \u00b7 PV combiner box 2 in 1 out Strings All 1 2 3 4 6 Outputs All 1 2 Switch Type All Disconnector Breaker Clear all \u2192 Jump to Protection Stack HS \u2014 Fuse + SPD + Switch Disconnector HS SeriesHS-1\/1 1 IN 1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1482","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/pages\/1482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/comments?post=1482"}],"version-history":[{"count":21,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/pages\/1482\/revisions"}],"predecessor-version":[{"id":1996,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/pages\/1482\/revisions\/1996"}],"wp:attachment":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/media?parent=1482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}