{"id":1544,"date":"2026-04-22T12:10:42","date_gmt":"2026-04-22T12:10:42","guid":{"rendered":"https:\/\/shieldhz.com\/?page_id=1544"},"modified":"2026-05-07T18:16:16","modified_gmt":"2026-05-07T18:16:16","slug":"dc-isolator-switches","status":"publish","type":"page","link":"https:\/\/shieldhz.com\/ar\/dc-isolator-switches\/","title":{"rendered":"\u0645\u0641\u062a\u0627\u062d \u0645\u0639\u0632\u0644 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dccss\" data-block-id=\"dccss\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dccss-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dccssc\" data-v=\"4\" data-block-id=\"dccssc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container 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aria-label=\"DC Isolator Switches\">\n  <style>\n    .shz-dc-hero{position:relative;background:#061a36;overflow:hidden}.shz-dc-hero-stage{position:relative;min-height:700px;padding:112px 0 158px;background:#061a36;display:flex;align-items:center;overflow:hidden}.shz-dc-hero-bg{position:absolute;inset:0;z-index:0;background:#061a36;overflow:hidden}.shz-dc-hero-bg:before{content:\"\";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,#061a36 0%,rgba(6,26,54,.99) 25%,rgba(6,26,54,.86) 43%,rgba(6,26,54,.52) 65%,rgba(6,26,54,.2) 100%),linear-gradient(180deg,rgba(1,10,24,.04) 0%,rgba(1,10,24,.18) 58%,rgba(1,10,24,.58) 100%);pointer-events:none}.shz-dc-hero-bg:after{content:\"\";position:absolute;inset:-1px;z-index:2;background:radial-gradient(circle at 18% 42%,rgba(74,143,212,.18),transparent 34%),linear-gradient(90deg,rgba(6,26,54,.96) 0%,rgba(6,26,54,.08) 58%,rgba(6,26,54,.2) 100%);pointer-events:none}.shz-dc-hero-bg 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switches help match each solar installation to the correct DC-rated switch: GF40 for IP66 string boxes, GF51 for DIN rail or enclosed isolator assemblies, and GF41 for 1500V multi-pole cabinet routes.<\/p><div class=\"shz-dc-hero-actions\"><a class=\"shz-dc-btn shz-dc-btn-primary\" href=\"#dc-series\">Compare GF series routes<\/a><a class=\"shz-dc-btn shz-dc-btn-secondary\" href=\"#ct-popup-1234\">Request PV DC isolator quote<\/a><\/div><\/div><\/div>\n    <div class=\"shz-dc-hero-metrics\" aria-label=\"PV DC isolator route metrics\"><div class=\"shz-dc-hero-metrics-grid\"><div class=\"shz-dc-hero-metric\"><div class=\"shz-dc-hero-metric-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M13 2L4 14h7l-1 8 9-12h-7l1-8z\"><\/path><\/svg><\/div><div><strong>1500V DC<\/strong><span>Max Route<\/span><\/div><\/div><div class=\"shz-dc-hero-metric\"><div class=\"shz-dc-hero-metric-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M5 12h14\"><\/path><path d=\"M8 8l-4 4 4 4M16 8l4 4-4 4\"><\/path><\/svg><\/div><div><strong>8A-50A<\/strong><span>Current Range<\/span><\/div><\/div><div class=\"shz-dc-hero-metric\"><div class=\"shz-dc-hero-metric-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M12 3l7 4v5c0 4.4-2.8 7.4-7 9-4.2-1.6-7-4.6-7-9V7l7-4z\"><\/path><path d=\"M8.5 12l2.2 2.2 4.8-5\"><\/path><\/svg><\/div><div><strong>IP20\/IP66<\/strong><span>Protection<\/span><\/div><\/div><div class=\"shz-dc-hero-metric\"><div class=\"shz-dc-hero-metric-icon\"><svg viewBox=\"0 0 24 24\"><rect x=\"4\" y=\"5\" width=\"16\" height=\"14\" rx=\"2\"><\/rect><path d=\"M8 9h8M8 13h3M13 13h3\"><\/path><\/svg><\/div><div><strong>IEC 60947-3<\/strong><span>Switch Duty<\/span><\/div><\/div><div class=\"shz-dc-hero-metric\"><div class=\"shz-dc-hero-metric-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M3 8h11v8H3zM14 11h3l3 3v2h-6z\"><\/path><circle cx=\"7\" cy=\"18\" r=\"1.7\"><\/circle><circle cx=\"17\" cy=\"18\" r=\"1.7\"><\/circle><\/svg><\/div><div><strong>CE \/ TUV \/ CB<\/strong><span>Cert Marks<\/span><\/div><\/div><\/div><\/div>\n  <\/div>\n<\/section>\n<!-- SHZ-DC-SEC1 HERO END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcseries\" data-block-id=\"dcseries\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcseries-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcseriesc\" data-v=\"4\" data-block-id=\"dcseriesc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcseriesc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcseriesc-inner-blocks\">\n<!-- SHZ-DC-SEC2 SERIES START -->\n<section id=\"dc-series\" class=\"shz-dc shz-dc-series\">\n  <style>\n    .shz-dc-series{background:#fff}.shz-dc-series .shz-dc-wrap{padding-top:76px}.shz-dc-hub-intro{width:min(1040px,100%);margin:24px auto 0;padding:22px 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rgba(45,74,142,.14)}@media(max-width:1020px){.shz-dc-series-grid{grid-template-columns:1fr;max-width:760px;margin-left:auto;margin-right:auto}.shz-dc-line{min-height:0}.shz-dc-line-img{height:280px}}@media(max-width:620px){.shz-dc-series .shz-dc-wrap{padding-top:56px}.shz-dc-series-grid{gap:18px}.shz-dc-line-head,.shz-dc-line-body{padding-left:20px;padding-right:20px}.shz-dc-line-img{height:220px;padding-left:20px;padding-right:20px}.shz-dc-line h3{font-size:23px}}\n  <\/style>\n  <div class=\"shz-dc-wrap\">\n    <div class=\"shz-dc-center\"><span class=\"shz-dc-kicker\">Product Families<\/span><h2 class=\"shz-dc-h2\">Choose The Correct GF Series DC Isolator Route<\/h2><p class=\"shz-dc-lead\">Start with where the switch will be installed, then check DC voltage, current, pole count, enclosure protection, and the documents your market requires.<\/p><\/div><div class=\"shz-dc-hub-intro\"><strong>GF series PV DC isolator switches<\/strong> should be selected before the final model code is confirmed. GF40 covers IP66 string isolator boxes, GF51 separates IP20 DIN rail core units from IP66 enclosed DC isolator assemblies, and GF41 covers 1500V multi-pole switchgear and cabinet integration.<\/div>\n    <div class=\"shz-dc-series-grid\">\n      <article class=\"shz-dc-card shz-dc-line is-featured\">\n        <div class=\"shz-dc-line-head\"><h3>GF40<\/h3><div class=\"shz-dc-line-tag\">IP66 PV String Isolator Box<\/div><\/div>\n        <figure class=\"shz-dc-line-img\"><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-gf40-pv-dc-isolator-switch-ip66-white-bg-sec2.webp\" alt=\"Shieldhz GF40 PV DC isolator switch IP66 waterproof box on white background\" loading=\"lazy\" decoding=\"async\"><\/figure>\n        <div class=\"shz-dc-line-body\"><p>Use GF40 for rooftop or wall-mounted PV string isolation where the complete assembly needs IP66 protection and cable entry routing.<\/p><ul><li>10A &#8211; 32A PV string isolator route<\/li><li>1000 &#8211; 1200V DC catalogue reference<\/li><li>M20, M25, or MC4 connection options<\/li><li>IP66 enclosed outdoor installation<\/li><li>IEC 60947-3 switch-disconnector route<\/li><\/ul><a class=\"shz-dc-btn shz-dc-btn-primary\" href=\"https:\/\/shieldhz.com\/dc-isolator-switches\/gf40-pv-dc-isolator-switch\/\">View GF40 IP66 PV string isolator<\/a><\/div>\n      <\/article>\n      <article class=\"shz-dc-card shz-dc-line\">\n        <div class=\"shz-dc-line-head\"><h3>GF51<\/h3><div class=\"shz-dc-line-tag\">IP20 DIN Rail \/ IP66 Enclosed Route<\/div><\/div>\n        <figure class=\"shz-dc-line-img\"><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-gf51-pv-dc-isolator-switch-din-rail-white-bg-sec2.webp\" alt=\"Shieldhz GF51 PV DC isolator switch DIN rail panel mount on white background\" loading=\"lazy\" decoding=\"async\"><\/figure>\n        <div class=\"shz-dc-line-body\"><p>Use GF51 when the design needs either an IP20 DIN rail DC isolator core or an IP66 enclosed PV isolator assembly for combiner or inverter-side isolation.<\/p><ul><li>8A &#8211; 45A current rating rows<\/li><li>300V, 600V, 800V, and 1500V DC routes<\/li><li>2P, 4P, and 2H contact configurations<\/li><li>DIN rail core and enclosed assembly routes must be confirmed separately<\/li><li>Certificate, wiring, and enclosure route confirmation before approval<\/li><\/ul><a class=\"shz-dc-btn shz-dc-btn-primary\" href=\"https:\/\/shieldhz.com\/dc-isolator-switches\/gf51-pv-dc-isolator-switch\/\">View GF51 DIN rail DC isolator<\/a><\/div>\n      <\/article>\n      <article class=\"shz-dc-card shz-dc-line\">\n        <div class=\"shz-dc-line-head\"><h3>GF41<\/h3><div class=\"shz-dc-line-tag\">1500V Multi-pole DC Route<\/div><\/div>\n        <figure class=\"shz-dc-line-img\"><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-gf41-solar-dc-switch-1500v-white-bg-sec2.webp\" alt=\"Shieldhz GF41 1500V multi-pole solar DC switch on white background\" loading=\"lazy\" decoding=\"async\"><\/figure>\n        <div class=\"shz-dc-line-body\"><p>Use GF41 for higher pole-count PV isolation, cabinet integration, and projects where contact route and handle orientation must be specified.<\/p><ul><li>16A &#8211; 55A current options<\/li><li>1500V DC multi-pole route<\/li><li>2 &#8211; 10 pole structures<\/li><li>H\/S\/B\/T contact route references<\/li><li>HM, PM, DB, DC, and EL installation codes<\/li><\/ul><a class=\"shz-dc-btn shz-dc-btn-primary\" href=\"https:\/\/shieldhz.com\/dc-isolator-switches\/gf41-solar-dc-switch\/\">View GF41 1500V multi-pole DC switch<\/a><\/div>\n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n<!-- SHZ-DC-SEC2 SERIES END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcmatrix\" data-block-id=\"dcmatrix\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcmatrix-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcmatrixc\" data-v=\"4\" data-block-id=\"dcmatrixc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcmatrixc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcmatrixc-inner-blocks\">\n<!-- SHZ-DC-SEC3 MATRIX START -->\n<section class=\"shz-dc shz-dc-matrix\">\n  <style>.shz-dc-matrix{background:#fff}.shz-dc-matrix-head{text-align:center;max-width:1180px;margin:0 auto}.shz-dc-matrix-head .shz-dc-kicker{justify-content:center}.shz-dc-matrix-head .shz-dc-kicker:after{display:block}.shz-dc-matrix-head .shz-dc-lead{margin:12px auto 0;max-width:820px;text-align:center}.shz-dc-matrix .shz-dc-tablebox{margin-top:34px}<\/style>\n  <div class=\"shz-dc-wrap\"><header class=\"shz-dc-matrix-head\"><span class=\"shz-dc-kicker\">Selection Matrix<\/span><h2 class=\"shz-dc-h2\">PV DC Isolator Switch Selection By Installation Point<\/h2><p class=\"shz-dc-lead\">Compare installation point, voltage, current, enclosure rating, and documents before choosing a GF route.<\/p><\/header><div class=\"shz-dc-tablebox\"><table class=\"shz-dc-table\"><thead><tr><th>Project need<\/th><th>Recommended route<\/th><th>Why<\/th><th>Information to send<\/th><\/tr><\/thead><tbody><tr><td>String-level rooftop isolation<\/td><td>GF40<\/td><td>IP66 enclosed PV string route with M20, M25, or MC4 connection options; standard catalogue route covers 1000-1200V DC.<\/td><td>String voltage, current, contact code, cable entry, installation position.<\/td><\/tr><tr><td>Combiner output or DIN rail cabinet route<\/td><td>GF51<\/td><td>GF51 includes IP20 DIN rail core forms and IP66 enclosed forms; confirm the exact route against the 300V, 600V, 800V, and 1500V DC rating rows.<\/td><td>System voltage, current row, 2P\/4P\/2H contact route, enclosure or DIN rail plan.<\/td><\/tr><tr><td>Multi-string switchgear panel isolation<\/td><td>GF41<\/td><td>1500V DC multi-pole route with 16A-55A current options, 2-10 pole structures, and defined mounting\/handle codes.<\/td><td>Current, pole count, H\/S\/B\/T contact route, HM\/PM\/DB\/DC\/EL installation code, handle orientation.<\/td><\/tr><tr><td>Outdoor canopy, carport, or wall-mounted disconnect<\/td><td>GF40 \/ GF51 enclosed route<\/td><td>Exposed installations need an enclosed assembly. GF40 is the first route for IP66 string-level boxes; use GF51 when its rating row or DIN\/enclosed family better matches the project.<\/td><td>Environment, cable glands, weather exposure, quantity, target market.<\/td><\/tr><\/tbody><\/table><\/div><\/div>\n<\/section>\n<!-- SHZ-DC-SEC3 MATRIX END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcapps\" data-block-id=\"dcapps\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcapps-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcappsc\" data-v=\"4\" data-block-id=\"dcappsc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcappsc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcappsc-inner-blocks\">\n<!-- SHZ-DC-SEC4 APPLICATIONS START -->\n<section class=\"shz-dc shz-dc-apps\">\n  <style>.shz-dc-apps{background:#F5F7FB}.shz-dc-app-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:30px}.shz-dc-app{overflow:hidden;display:flex;flex-direction:column}.shz-dc-app figure{margin:0;aspect-ratio:16\/9;background:#e8eef6}.shz-dc-app img{width:100%;height:100%;object-fit:cover;display:block}.shz-dc-app-body{padding:18px;display:flex;flex-direction:column;gap:9px;flex:1}.shz-dc-app h3{margin:0;color:var(--text);font-size:1.06rem}.shz-dc-app p{margin:0;color:var(--muted);line-height:1.55;font-size:.93rem}.shz-dc-app b{margin-top:auto;color:var(--primary);font-size:.9rem}@media(max-width:1080px){.shz-dc-app-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:690px){.shz-dc-app-grid{grid-template-columns:1fr}}<\/style>\n  <div class=\"shz-dc-wrap\"><header class=\"shz-dc-center\"><span class=\"shz-dc-kicker\">Applications<\/span><h2 class=\"shz-dc-h2\">Where GF Series DC Isolators Are Used In Solar PV Systems<\/h2><\/header><div class=\"shz-dc-app-grid\">\n    <article class=\"shz-dc-card shz-dc-app\"><figure><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/04\/shieldhz-application-residential-rooftop-solar-pv.webp\" alt=\"Residential rooftop solar PV system requiring string-level DC isolator switch\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"shz-dc-app-body\"><h3>Residential Rooftop PV<\/h3><p>String-level roof isolator or DC disconnect near inverter or rooftop equipment.<\/p><b>Route: GF40 IP66 \/ MC4<\/b><\/div><\/article>\n    <article class=\"shz-dc-card shz-dc-app\"><figure><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/04\/shieldhz-application-commercial-industrial-rooftop-solar-pv.webp\" alt=\"Commercial and industrial rooftop solar PV installation\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"shz-dc-app-body\"><h3>Commercial Rooftop<\/h3><p>Combiner or inverter-side solar DC isolator switch route for larger rooftop arrays.<\/p><b>Route: GF51 \/ GF40<\/b><\/div><\/article>\n    <article class=\"shz-dc-card shz-dc-app\"><figure><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/04\/shieldhz-application-ground-mount-solar-farm-utility-scale.webp\" alt=\"Utility-scale ground mount solar farm requiring multi-pole DC isolator switches\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"shz-dc-app-body\"><h3>Ground-mount Solar Farms<\/h3><p>PV array DC isolator switch route inside switchgear or combiner panels.<\/p><b>Route: GF41 \/ GF51<\/b><\/div><\/article>\n    <article class=\"shz-dc-card shz-dc-app\"><figure><img src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/04\/shieldhz-application-solar-carport-ev-charging.webp\" alt=\"Solar carport canopy with EV charging stations requiring IP66 waterproof DC isolator\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"shz-dc-app-body\"><h3>Solar Carport And EV Canopy<\/h3><p>Exposed equipment disconnects where enclosure rating matters.<\/p><b>Route: GF40 \/ GF51 IP66<\/b><\/div><\/article>\n  <\/div><\/div>\n<\/section>\n<!-- SHZ-DC-SEC4 APPLICATIONS END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcwhy\" data-block-id=\"dcwhy\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcwhy-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcwhyc\" data-v=\"4\" data-block-id=\"dcwhyc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcwhyc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcwhyc-inner-blocks\">\n<!-- SHZ-DC-SEC5 WHY START -->\n<section class=\"shz-dc shz-dc-why\" id=\"dc-isolator-support\">\n  <style>\n    .shz-dc-why{position:relative;overflow:hidden;background:linear-gradient(115deg,#061A36 0%,#092B59 54%,#0E4A93 100%);color:#fff}.shz-dc-why:before{content:\"\";position:absolute;inset:0;background:radial-gradient(circle at 8% 22%,rgba(74,143,212,.28),transparent 30%),radial-gradient(circle at 92% 80%,rgba(45,74,142,.34),transparent 34%);pointer-events:none}.shz-dc-why .shz-dc-wrap{position:relative;z-index:1;padding:74px 0}.shz-dc-why-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(470px,.78fr);gap:86px;align-items:center}.shz-dc-why .shz-dc-kicker{color:#72A7EE}.shz-dc-why .shz-dc-h2{color:#fff;max-width:780px}.shz-dc-why-copy{margin:16px 0 0;max-width:760px;color:#C8D8EE;font-size:16px;line-height:1.68}.shz-dc-why-list{display:grid;gap:18px;margin-top:30px;max-width:760px}.shz-dc-why-item{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start}.shz-dc-why-icon{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#0D6BDA;color:#fff;box-shadow:0 12px 24px rgba(13,107,218,.28)}.shz-dc-why-icon svg{width:21px;height:21px;stroke:currentColor;stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}.shz-dc-why-item h3{margin:0 0 5px;color:#fff;font-size:16px;font-weight:900}.shz-dc-why-item p{margin:0;color:#B8CCE8;font-size:14.5px;line-height:1.56}.shz-dc-why-panel{padding:34px 36px;border-radius:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);box-shadow:0 20px 48px rgba(0,0,0,.18);backdrop-filter:blur(12px)}.shz-dc-why-panel h3{margin:0 0 20px;color:#7AB0F5;font-size:20px;line-height:1.25}.shz-dc-why-panel ul{margin:0;padding:0;list-style:none;display:grid;gap:14px}.shz-dc-why-panel li{position:relative;padding-left:30px;color:#DDE9F8;font-size:15px;line-height:1.45}.shz-dc-why-panel li:before{content:\"\";position:absolute;left:0;top:.06em;width:19px;height:19px;border-radius:4px;border:1.5px solid #8EC0FF}.shz-dc-why-panel li:after{content:\"\";position:absolute;left:5px;top:.42em;width:8px;height:4px;border-left:1.8px solid #8EC0FF;border-bottom:1.8px solid #8EC0FF;transform:rotate(-45deg)}.shz-dc-why-panel .shz-dc-btn{width:100%;margin-top:28px}@media(max-width:980px){.shz-dc-why-grid{grid-template-columns:1fr;gap:38px}.shz-dc-why-panel{max-width:720px}}@media(max-width:620px){.shz-dc-why .shz-dc-wrap{padding:50px 0}.shz-dc-why-panel{padding:24px 20px}.shz-dc-why-item{grid-template-columns:42px 1fr}}\n  <\/style>\n  <div class=\"shz-dc-wrap shz-dc-why-grid\">\n    <div><span class=\"shz-dc-kicker\">Manufacturer And Safety Support<\/span><h2 class=\"shz-dc-h2\">PV DC Isolation Needs A Rated Switch And A Traceable Supplier<\/h2><p class=\"shz-dc-why-copy\">Shieldhz is the export brand of Zhejiang Shihe Electric Co., Ltd. For PV DC isolation projects, the selected switch must match the electrical rating and installation environment, while the supplier must support samples, drawings, certificates, and quotation checks.<\/p>\n      <div class=\"shz-dc-why-list\">\n        <div class=\"shz-dc-why-item\"><div class=\"shz-dc-why-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M5 12h14\"><\/path><path d=\"M8 8l-4 4 4 4\"><\/path><path d=\"M16 8l4 4-4 4\"><\/path><\/svg><\/div><div><h3>DC arc interruption<\/h3><p>Model selection starts with maximum array voltage, current, and pole configuration; an AC isolator should not be reused in a DC PV circuit.<\/p><\/div><\/div>\n        <div class=\"shz-dc-why-item\"><div class=\"shz-dc-why-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M12 3l7 4v5c0 4.5-2.8 7.5-7 9-4.2-1.5-7-4.5-7-9V7z\"><\/path><path d=\"M9 12l2 2 4-5\"><\/path><\/svg><\/div><div><h3>Enclosure protection<\/h3><p>Outdoor PV installations need an enclosed assembly matched to exposure, cable entry, connector style, and IP requirement.<\/p><\/div><\/div>\n        <div class=\"shz-dc-why-item\"><div class=\"shz-dc-why-icon\"><svg viewBox=\"0 0 24 24\"><path d=\"M4 20V8l8-4 8 4v12\"><\/path><path d=\"M8 20v-7h8v7\"><\/path><path d=\"M9 9h.01M15 9h.01\"><\/path><\/svg><\/div><div><h3>Traceable production<\/h3><p>Zhejiang Shihe Electric Co., Ltd. was founded in 2014 and operates ISO 9001 production management in a 5,000+ sqm factory.<\/p><\/div><\/div>\n        <div class=\"shz-dc-why-item\"><div class=\"shz-dc-why-icon\"><svg viewBox=\"0 0 24 24\"><rect x=\"4\" y=\"4\" width=\"16\" height=\"16\" rx=\"2\"><\/rect><path d=\"M8 9h8M8 13h5M8 17h7\"><\/path><\/svg><\/div><div><h3>Export documentation<\/h3><p>Shieldhz can check CE, TUV, UL, UKCA, CCC, RoHS, and CB documents against the selected model and target market.<\/p><\/div><\/div>\n      <\/div>\n    <\/div>\n    <aside class=\"shz-dc-why-panel\"><h3>Quote Preparation Checklist<\/h3><ul><li>PV string or array voltage and operating current<\/li><li>Number of poles and contact or wiring configuration<\/li><li>Indoor cabinet, wall mount, or outdoor exposed installation<\/li><li>Required IP rating and certification target market<\/li><li>Quantity, MOQ target, lead time, and required approval documents<\/li><\/ul><a class=\"shz-dc-btn shz-dc-btn-primary\" href=\"#ct-popup-1234\">Send PV DC isolator requirements<\/a><\/aside>\n  <\/div>\n<\/section>\n<!-- SHZ-DC-SEC5 WHY END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dctopology\" data-block-id=\"dctopology\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dctopology-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dctopologyc\" data-v=\"4\" data-block-id=\"dctopologyc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dctopologyc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dctopologyc-inner-blocks\">\n<!-- SHZ-DC-SEC6 TOPOLOGY START -->\n<section class=\"shz-dc shz-dc-topology\" id=\"dc-system-overview\">\n  <style>\n    .shz-dc-topology{background:#fff}.shz-dc-topology .shz-dc-wrap{padding:68px 0}.shz-dc-topo-head{text-align:center;max-width:1080px;margin:0 auto 32px}.shz-dc-topo-head .shz-dc-kicker{justify-content:center}.shz-dc-topo-head .shz-dc-kicker:after{display:block}.shz-dc-topo-head .shz-dc-h2{font-size:clamp(30px,2.7vw,42px)}.shz-dc-system-card{padding:36px 38px 32px;overflow:hidden}.shz-dc-system-card:hover{transform:none}.shz-dc-system-scroll{overflow-x:auto;padding:0 0 8px}.shz-dc-system-flow{min-width:1060px;display:grid;grid-template-columns:minmax(150px,1fr) 78px minmax(150px,1fr) 78px minmax(150px,1fr) 78px minmax(150px,1fr) 78px minmax(170px,1fr);gap:0;align-items:start}.shz-dc-system-node{text-align:center;min-width:0}.shz-dc-system-icon{width:132px;height:132px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center}.shz-dc-system-icon img{width:132px;height:132px;object-fit:contain;display:block}.shz-dc-system-node .shz-dc-system-title{margin:0;color:#061A36;font-size:19px;line-height:1.2;font-weight:900}.shz-dc-system-node p{margin:7px 0 0;color:#5D6B82;font-size:14px;line-height:1.35;font-weight:700}.shz-dc-system-connector{position:relative;height:132px;display:flex;align-items:center;justify-content:center}.shz-dc-system-connector:before{content:\"\";position:absolute;left:6px;right:6px;top:66px;height:4px;background:#4A8FD4;border-radius:999px}.shz-dc-system-connector:after{content:\"\";position:absolute;right:0;top:56px;border-left:18px solid #4A8FD4;border-top:11px solid transparent;border-bottom:11px solid transparent}.shz-dc-system-connector.is-ac:before{background:#8EA0B8}.shz-dc-system-connector.is-ac:after{border-left-color:#8EA0B8}.shz-dc-system-badge{position:relative;z-index:1;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#E83A3A;color:#fff;font-size:16px;font-weight:900;box-shadow:0 10px 20px rgba(232,58,58,.18)}.shz-dc-system-callouts{width:min(1060px,100%);margin:38px auto 0;padding:22px 24px;border:1px solid #D4DEEA;border-radius:8px;background:#F7FAFE;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}.shz-dc-system-callout{display:grid;grid-template-columns:44px 1fr;gap:18px;align-items:start;padding:0 26px}.shz-dc-system-callout:first-child{border-right:1px solid #D4DEEA}.shz-dc-system-callout .shz-dc-system-badge{width:34px;height:34px;font-size:15px;box-shadow:none}.shz-dc-system-callout .shz-dc-system-title{margin:0;color:#061A36;font-size:18px;line-height:1.25;font-weight:900}.shz-dc-system-callout p{margin:7px 0 0;color:#5D6B82;font-size:14px;line-height:1.48}.shz-dc-system-note{margin:22px 0 0;text-align:center;color:#6B7A90;font-size:13px;line-height:1.5}@media(max-width:1100px){.shz-dc-system-card{padding:26px}.shz-dc-system-flow{min-width:1000px}.shz-dc-system-callouts{min-width:840px}.shz-dc-system-scroll{padding-bottom:10px}}@media(max-width:680px){.shz-dc-topology .shz-dc-wrap{padding:50px 0}.shz-dc-system-card{padding:16px}.shz-dc-topo-head{margin-bottom:24px}.shz-dc-system-flow{min-width:940px}.shz-dc-system-icon,.shz-dc-system-icon img{width:112px;height:112px}.shz-dc-system-connector{height:112px}.shz-dc-system-connector:before{top:56px}.shz-dc-system-connector:after{top:46px}.shz-dc-system-callouts{min-width:820px;margin-top:30px;padding:18px}.shz-dc-system-callout{padding:0 20px}}\n  <\/style>\n  <div class=\"shz-dc-wrap\">\n    <header class=\"shz-dc-topo-head\"><span class=\"shz-dc-kicker\">System Overview<\/span><h2 class=\"shz-dc-h2\">Where DC Isolator Switches Sit In A Solar PV System<\/h2><\/header>\n    <div class=\"shz-dc-card shz-dc-system-card\">\n      <div class=\"shz-dc-system-scroll\">\n        <div class=\"shz-dc-system-flow\" aria-label=\"Solar PV DC isolation system overview\">\n          <div class=\"shz-dc-system-node\"><div class=\"shz-dc-system-icon\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-topology-icon-pv-array.webp\" alt=\"Mini icon of solar PV array for DC isolator system overview\"><\/div><div class=\"shz-dc-system-title\">PV Array<\/div><p>DC generation<\/p><\/div>\n          <div class=\"shz-dc-system-connector\"><span class=\"shz-dc-system-badge\">1<\/span><\/div>\n          <div class=\"shz-dc-system-node\"><div class=\"shz-dc-system-icon\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-topology-icon-combiner-box.webp\" alt=\"Mini icon of PV combiner box for DC isolator system overview\"><\/div><div class=\"shz-dc-system-title\">Combiner Box<\/div><p>DC aggregation<\/p><\/div>\n          <div class=\"shz-dc-system-connector\"><span class=\"shz-dc-system-badge\">2<\/span><\/div>\n          <div class=\"shz-dc-system-node\"><div class=\"shz-dc-system-icon\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-topology-icon-dc-isolator.webp\" alt=\"Mini icon of DC isolator switch for solar PV system overview\"><\/div><div class=\"shz-dc-system-title\">DC Isolator<\/div><p>GF51 \/ GF41 route<\/p><\/div>\n          <div class=\"shz-dc-system-connector\"><span class=\"shz-dc-system-badge\">3<\/span><\/div>\n          <div class=\"shz-dc-system-node\"><div class=\"shz-dc-system-icon\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-topology-icon-inverter.webp\" alt=\"Mini icon of solar inverter for DC to AC conversion\"><\/div><div class=\"shz-dc-system-title\">Inverter<\/div><p>DC to AC<\/p><\/div>\n          <div class=\"shz-dc-system-connector is-ac\"><span class=\"shz-dc-system-badge\">4<\/span><\/div>\n          <div class=\"shz-dc-system-node\"><div class=\"shz-dc-system-icon\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-topology-icon-meter-grid.webp\" alt=\"Mini icon of meter and utility grid for AC side connection\"><\/div><div class=\"shz-dc-system-title\">Meter \/ Grid<\/div><p>AC utility tie<\/p><\/div>\n        <\/div>\n        <div class=\"shz-dc-system-callouts\">\n          <article class=\"shz-dc-system-callout\"><span class=\"shz-dc-system-badge\">1<\/span><div><div class=\"shz-dc-system-title\">String-level isolation<\/div><p>Isolates each PV string for safe maintenance and fault handling.<\/p><\/div><\/article>\n          <article class=\"shz-dc-system-callout\"><span class=\"shz-dc-system-badge\">2<\/span><div><div class=\"shz-dc-system-title\">Combiner \/ inverter-side isolation<\/div><p>Ensures complete DC isolation before inverter service and approval.<\/p><\/div><\/article>\n        <\/div>\n      <\/div>\n      <p class=\"shz-dc-system-note\">This is a selection map, not a wiring diagram. Use it to locate the isolator position, then confirm voltage, current, pole count, enclosure rating, and certificate requirements before quotation.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n<!-- SHZ-DC-SEC6 TOPOLOGY END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcselection\" data-block-id=\"dcselection\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcselection-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcselectionc\" data-v=\"4\" data-block-id=\"dcselectionc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcselectionc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcselectionc-inner-blocks\">\n<!-- SHZ-DC-SEC7 SELECTION START -->\n<section class=\"shz-dc shz-dc-selection\">\n  <style>.shz-dc-selection{background:#fff}.shz-dc-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:30px}.shz-dc-step{padding:22px}.shz-dc-step b{display:inline-flex;width:34px;height:34px;border-radius:8px;background:#edf3fa;color:var(--primary);align-items:center;justify-content:center;margin-bottom:12px}.shz-dc-step h3{margin:0 0 9px;color:var(--text);font-size:1.08rem}.shz-dc-step p{margin:0;color:var(--muted);line-height:1.56;font-size:.94rem}@media(max-width:1080px){.shz-dc-steps{grid-template-columns:repeat(2,1fr)}}@media(max-width:690px){.shz-dc-steps{grid-template-columns:1fr}}<\/style>\n  <div class=\"shz-dc-wrap\"><header class=\"shz-dc-center\"><span class=\"shz-dc-kicker\">Procurement Check<\/span><h2 class=\"shz-dc-h2\">DC Isolator Ratings And Documents To Confirm<\/h2><\/header><div class=\"shz-dc-steps\"><article class=\"shz-dc-card shz-dc-step\"><b>1<\/b><h3>Confirm DC Voltage Rating<\/h3><p>Use maximum array voltage rather than nominal string voltage. Confirm whether the project falls under the 1000V, 1200V, or 1500V DC catalogue range.<\/p><\/article><article class=\"shz-dc-card shz-dc-step\"><b>2<\/b><h3>Check Current And Pole Configuration<\/h3><p>Match string current and parallel strings to the required 2 pole, 4 pole, or multi-pole contact configuration.<\/p><\/article><article class=\"shz-dc-card shz-dc-step\"><b>3<\/b><h3>Select Enclosure Protection<\/h3><p>Choose the IP20 DIN rail core or IP66 enclosed assembly according to where the switch is installed.<\/p><\/article><article class=\"shz-dc-card shz-dc-step\"><b>4<\/b><h3>Confirm Drawings And IEC 60947-3 Documents<\/h3><p>Request the datasheet, certificate copy, dimensional drawing, wiring reference, and model-code confirmation before approval.<\/p><\/article><\/div><\/div>\n<\/section>\n<!-- SHZ-DC-SEC7 SELECTION END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcresources\" data-block-id=\"dcresources\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcresources-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcresourcesc\" data-v=\"4\" data-block-id=\"dcresourcesc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcresourcesc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcresourcesc-inner-blocks\">\n<!-- SHZ-DC-SEC8 RESOURCES START -->\n<section class=\"shz-dc shz-dc-resources\">\n  <style>.shz-dc-resources{background:#F5F7FB}.shz-dc-res-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:34px}.shz-dc-res{min-height:190px;padding:32px 34px 42px;display:flex;flex-direction:column;align-items:flex-start}.shz-dc-res h3{margin:0 0 14px;color:var(--text);font-size:1.1rem;line-height:1.25}.shz-dc-res p{margin:0 0 24px;color:var(--muted);line-height:1.62}.shz-dc-res a{display:inline-block;margin-top:0;margin-bottom:0;color:var(--primary);font-weight:850;line-height:1.45}.shz-dc-res a:after{content:\"  ->\"}@media(max-width:980px){.shz-dc-res-grid{grid-template-columns:1fr}.shz-dc-res{min-height:0;padding:30px 30px 38px}}<\/style>\n  <div class=\"shz-dc-wrap\"><header class=\"shz-dc-center\"><span class=\"shz-dc-kicker\">Related Routes<\/span><h2 class=\"shz-dc-h2\">Related Product And Resource Routes<\/h2><\/header><div class=\"shz-dc-res-grid\"><article class=\"shz-dc-card shz-dc-res\"><h3>Rotary cam switches<\/h3><p>Use this when the switching function is selector, transfer, reversing, or custom cam logic.<\/p><a href=\"https:\/\/shieldhz.com\/rotary-cam-switches\/\">View rotary cam switch selection page<\/a><\/article><article class=\"shz-dc-card shz-dc-res\"><h3>Waterproof isolator boxes<\/h3><p>Use this when the issue is enclosure, cable entry, weatherproofing, or local AC equipment isolation.<\/p><a href=\"https:\/\/shieldhz.com\/waterproof-isolator-box\/\">View waterproof isolator box page<\/a><\/article><article class=\"shz-dc-card shz-dc-res\"><h3>Catalogues and certificates<\/h3><p>Use the resources page for catalogue, certificate, drawing, and document package requests.<\/p><a href=\"https:\/\/shieldhz.com\/resources\/\">View Shieldhz catalogues and certificates<\/a><\/article><\/div><\/div>\n<\/section>\n<!-- SHZ-DC-SEC8 RESOURCES END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dcfaq\" data-block-id=\"dcfaq\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dcfaq-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcfaqc\" data-v=\"4\" data-block-id=\"dcfaqc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcfaqc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcfaqc-inner-blocks\">\n<!-- SHZ-DC-SEC9 FAQ START -->\n<section class=\"shz-dc shz-dc-faqsec\">\n  <style>.shz-dc-faqsec{background:#fff}.shz-dc-faq{margin-top:30px;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:#fff}.shz-dc-faq details{border-top:1px solid var(--border)}.shz-dc-faq details:first-child{border-top:0}.shz-dc-faq summary{cursor:pointer;padding:18px 20px;font-weight:800;color:var(--text);list-style:none}.shz-dc-faq summary::-webkit-details-marker{display:none}.shz-dc-faq details[open] summary{background:#f2f7fe}.shz-dc-faq p{margin:0;padding:0 20px 20px;color:var(--muted);line-height:1.62}.shz-dc-faq a{color:var(--primary);font-weight:800}<\/style>\n  <div class=\"shz-dc-wrap\"><header class=\"shz-dc-center\"><span class=\"shz-dc-kicker\">FAQ<\/span><h2 class=\"shz-dc-h2\">DC Isolator Switch FAQ<\/h2><\/header><div class=\"shz-dc-faq\"><details open><summary>What is a PV DC isolator switch?<\/summary><p>A PV DC isolator switch is a DC-rated switch-disconnector used to isolate solar strings, combiner outputs, inverter inputs, or PV equipment for maintenance and emergency shutdown. It must be selected by maximum DC voltage, operating current, pole configuration, enclosure rating, and installation point.<\/p><\/details><details><summary>Why can an AC isolator not be used in a DC PV circuit?<\/summary><p>DC arcs do not naturally pass through zero current, so an AC isolator may not extinguish the arc safely. Use a DC-rated PV isolator matched to array voltage, current, and pole configuration.<\/p><\/details><details><summary>Which GF series should I choose for a solar DC isolator switch?<\/summary><p>Use GF40 for an IP66 rooftop DC disconnect or roof isolator assembly, GF51 for IP20 DIN rail core units or IP66 enclosed combiner and inverter-side isolation, and GF41 where a 1500V multi-pole DC isolator switch is needed.<\/p><\/details><details><summary>What information affects DC isolator switch price and quote time?<\/summary><p>Send DC voltage, string current, poles, installation location, enclosure protection requirement, certification target, quantity, MOQ target, delivery schedule, and whether the switch is installed at string, combiner, inverter, or equipment level.<\/p><\/details><details><summary>Does a rooftop DC disconnect switch need an enclosure?<\/summary><p>Yes. The switch core protection differs from the complete enclosed assembly. Exposed rooftop, carport, and outdoor utility installations usually require an IP66 enclosed route, with cable entry and connector details confirmed against the selected GF model.<\/p><\/details><details><summary>Which standards are relevant to PV DC isolator selection?<\/summary><p>Common project references include <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/59785\" target=\"_blank\" rel=\"noopener\">IEC 60947-3<\/a> for switch-disconnector functions and IEC 60529 for IP protection terminology. Final compliance depends on the exact model, rating, and certification mark.<\/p><\/details><details><summary>Are OEM or custom enclosed PV DC isolators available?<\/summary><p>Yes. Shieldhz can review OEM DC isolator switch requirements for enclosure style, cable entry, handle marking, contact route, document package, and export market. Confirm the target model first, then send drawings or samples when custom marking or enclosure work is required.<\/p><\/details><\/div><\/div>\n<\/section>\n<!-- SHZ-DC-SEC9 FAQ END -->\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-dccta\" data-block-id=\"dccta\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dccta-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dcctac\" data-v=\"4\" data-block-id=\"dcctac\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dcctac-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dcctac-inner-blocks\">\n<!-- SHZ-DC-SEC10 CTA START -->\n<section class=\"shz-dc shz-dc-cta\" id=\"dc-isolator-inquiry\">\n  <style>\n    .stk-dccta,.stk-dccta>.stk-row,.stk-dcctac,.stk-dcctac-container,.stk-dcctac-inner-blocks{margin-bottom:0!important;padding-bottom:0!important}.stk-dccta{line-height:0!important}.stk-dccta .shz-dc{line-height:normal!important}\n    .shz-dc-cta{position:relative;overflow:hidden;background:linear-gradient(115deg,#061A36 0%,#082B58 56%,#0E4A93 100%);color:#fff;margin-bottom:-32px!important;padding-bottom:32px!important}.shz-dc-cta:before{content:\"\";position:absolute;inset:0;background:radial-gradient(circle at 78% 25%,rgba(74,143,212,.24),transparent 34%);pointer-events:none}.shz-dc-cta .shz-dc-wrap{position:relative;z-index:1;padding:72px 0}.shz-dc-cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 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label{color:#10213D;font-weight:800}.shz-dc-form-note{margin:12px 0 0;color:#718096;font-size:12px;line-height:1.45;text-align:center}@media(max-width:980px){.shz-dc-cta-grid{grid-template-columns:1fr;gap:34px}.shz-dc-cta-copy{padding-left:0}.shz-dc-cta-art{left:-264px;right:auto;width:1008px;height:546px;opacity:.17}}@media(max-width:560px){.shz-dc-cta .shz-dc-wrap{padding:50px 0}.shz-dc-form-shell{padding:16px}.shz-dc-cta-art{left:-218px;width:816px;height:444px;opacity:.11}.shz-dc-cta h2{font-size:31px}}body.page-id-1544 .site-main,body.page-id-1544 #main,body.page-id-1544 article,body.page-id-1544 .entry-content,body.page-id-1544 .ct-container-full,body.page-id-1544 .stk-dccta,body.page-id-1544 .stk-dcctac,body.page-id-1544 .stk-dcctac-container,body.page-id-1544 .stk-dcctac-inner-blocks{margin-bottom:0!important;padding-bottom:0!important}body.page-id-1544 .entry-content>.wp-block-stackable-columns:last-child{margin-bottom:0!important;padding-bottom:0!important}body.page-id-1544 .site-footer,body.page-id-1544 .ct-footer{margin-top:0!important}\n  <\/style>\n  <div class=\"shz-dc-wrap shz-dc-cta-grid\">\n    <div class=\"shz-dc-cta-copy\">\n      <div class=\"shz-dc-cta-art\"><img decoding=\"async\" src=\"https:\/\/shieldhz.com\/wp-content\/uploads\/2026\/05\/shieldhz-gf40-gf51-gf41-pv-dc-isolator-white-line-art-transparent-cta.webp\" alt=\"White transparent line art of Shieldhz GF40 GF51 and GF41 PV DC isolator switches for CTA background\"><\/div>\n      <span class=\"shz-dc-kicker\">Inquiry<\/span><h2>Send PV DC Isolator Requirements<\/h2><p>Share DC voltage, operating current, pole configuration, installation point, IP rating, quantity, target certification market, and delivery schedule. Shieldhz will match the GF40, GF51, or GF41 route and confirm MOQ, lead time, drawings, and document package.<\/p>\n    <\/div>\n    <div class=\"shz-dc-form-shell\"><div class='fluentform ff-default fluentform_wrapper_1 ffs_default_wrap'><form data-form_id=\"1\" id=\"fluentform_1\" class=\"frm-fluent-form fluent_form_1 ff-el-form-top ff_form_instance_1_1 ff-form-loading ffs_default\" data-form_instance=\"ff_form_instance_1_1\" method=\"POST\" ><fieldset  style=\"border: none!important;margin: 0!important;padding: 0!important;background-color: transparent!important;box-shadow: none!important;outline: none!important; min-inline-size: 100%;\">\n                    <legend class=\"ff_screen_reader_title\" style=\"display: block; margin: 0!important;padding: 0!important;height: 0!important;text-indent: -999999px;width: 0!important;overflow:hidden;\">Contact Form Demo<\/legend><input type='hidden' name='__fluent_form_embded_post_id' value='1544' \/><input type=\"hidden\" id=\"_fluentform_1_fluentformnonce\" name=\"_fluentform_1_fluentformnonce\" value=\"128197fec8\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/ar\/wp-json\/wp\/v2\/pages\/1544\" \/><div data-type=\"name-element\" data-name=\"names\" class=\" ff-field_container ff-name-field-wrapper\" ><div class='ff-t-container'><div class='ff-t-cell '><div class='ff-el-group'><div class=\"ff-el-input--label asterisk-right\"><label for='ff_1_names_first_name_' id='label_ff_1_names_first_name_' >Name<\/label><\/div><div class='ff-el-input--content'><input type=\"text\" name=\"names[first_name]\" id=\"ff_1_names_first_name_\" class=\"ff-el-form-control\" placeholder=\"Name\" aria-invalid=\"false\" aria-required=false><\/div><\/div><\/div><\/div><\/div><div class='ff-el-group'><div class=\"ff-el-input--label ff-el-is-required asterisk-right\"><label for='ff_1_email' id='label_ff_1_email' aria-label=\"Email\">Email<\/label><\/div><div class='ff-el-input--content'><input type=\"email\" 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