{"id":912,"date":"2025-08-15T16:15:53","date_gmt":"2025-08-15T16:15:53","guid":{"rendered":"https:\/\/sinobreaker.com\/?page_id=912"},"modified":"2025-08-15T17:09:03","modified_gmt":"2025-08-15T17:09:03","slug":"dc-distribution-box-manufacturer","status":"publish","type":"page","link":"https:\/\/sinobreaker.com\/ko\/dc-distribution-box-manufacturer\/","title":{"rendered":"DC \ubc30\uc804\ud568 \uc81c\uc870\uc5c5\uccb4"},"content":{"rendered":"<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-fd5104a\" data-block-id=\"fd5104a\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-fd5104a-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-75e743d\" data-v=\"4\" data-block-id=\"75e743d\"><style>@media screen and (min-width:690px){.stk-75e743d {flex:var(--stk-flex-grow, 1) 1 calc(41.5% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-75e743d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-75e743d-inner-blocks\">\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\ubaa9\ucc28<\/h2><nav><ul><li><a href=\"#dc-distribution-box-manufacturer\">DC \ubc30\uc804\ud568 \uc81c\uc870\uc5c5\uccb4<\/a><ul><li><a href=\"#product-portfolio-what-we-build\">\uc81c\ud488 \ud3ec\ud2b8\ud3f4\ub9ac\uc624(\uad6c\ucd95 \ub300\uc0c1)<\/a><\/li><li><a href=\"#architecture-components-inside-a-modern-dc-box\">Architecture &amp; Components (inside a modern DC box)<\/a><\/li><li><a href=\"#selection-guide-long-tail-practical\">Selection Guide (long-tail, practical)<\/a><\/li><li><a href=\"#typical-configurations\">Typical Configurations<\/a><\/li><li><a href=\"#installation-best-practices\">\uc124\uce58 \ubaa8\ubc94 \uc0ac\ub840<\/a><\/li><li><a href=\"#testing-compliance-what-you-ll-see-on-the-nameplate\">Testing &amp; Compliance (what you\u2019ll see on the nameplate)<\/a><\/li><li><a href=\"#why-work-with-a-custom-dc-distribution-box-manufacturer\">Why work with a custom DC distribution box manufacturer<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b1fc2ef\" data-v=\"4\" data-block-id=\"b1fc2ef\"><style>@media screen and (min-width:690px){.stk-b1fc2ef {flex:var(--stk-flex-grow, 1) 1 calc(58.5% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b1fc2ef-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-b1fc2ef-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-24ecbe1\" data-block-id=\"24ecbe1\"><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"dc-distribution-box-manufacturer\">DC \ubc30\uc804\ud568 \uc81c\uc870\uc5c5\uccb4<\/h1>\n\n\n\n<p><em>PV, ESS, EV charging, telecom &amp; industrial DC distribution up to 1500 VDC<\/em><\/p>\n\n\n\n<p>A <strong>DC \ubc30\uc804\ud568<\/strong>-\ub610\ub294 <strong>DC combiner box<\/strong>, <strong>DC junction box<\/strong>\ub610\ub294 <strong>DC \ubc30\uc804\ubc18<\/strong>\u2014collects multiple DC inputs, protects each circuit, and delivers a single, organized output to inverters, battery racks, DC chargers, telecom rectifiers, or DC drives. A well-engineered box integrates <strong>over-current protection (fuses or breakers)<\/strong>, <strong>isolation<\/strong>, <strong>surge protection<\/strong>, <strong>busbars<\/strong>\ubc0f <strong>monitoring<\/strong> in an <strong>IP-rated<\/strong> enclosure for reliable service in solar PV, energy storage (ESS), EV charging, telecom (\u221248 V), and industrial DC systems.<\/p>\n\n\n\n<p>Protection and switchgear inside the box often include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"\/ko\/dc-circuit-breaker-manufacturer\/\">DC \ud68c\ub85c \ucc28\ub2e8\uae30<\/a><\/strong> for branch or feeder protection \u2014 see <strong>\/dc-circuit-breaker-manufacturer\/<\/strong><\/li>\n\n\n\n<li><strong><a href=\"\/ko\/dc-%ed%93%a8%ec%a6%88-%ec%a0%9c%ec%a1%b0%ec%97%85%ec%b2%b4\/\">DC \ud4e8\uc988<\/a><\/strong> (10\u00d738, 14\u00d751, 22\u00d758, NH gPV, aR\/gR) \u2014 see <strong>\/dc-fuse-manufacturer\/<\/strong><\/li>\n\n\n\n<li><strong><a href=\"\/ko\/dc-spd-%ec%a0%9c%ec%a1%b0%ec%97%85%ec%b2%b4\/\">DC SPD<\/a><\/strong> (Type 1\/2\/1+2 for PV\/ESS) \u2014 see <strong>\/dc-spd-manufacturer\/<\/strong><\/li>\n\n\n\n<li><strong><a href=\"\/ko\/dc-%ec%95%84%ec%9d%b4%ec%86%94%eb%a0%88%ec%9d%b4%ed%84%b0-%ec%8a%a4%ec%9c%84%ec%b9%98-%ec%a0%9c%ec%a1%b0%ec%97%85%ec%b2%b4\/\">DC isolator switches \/ switch-disconnectors<\/a><\/strong> \u2014 see <strong>\/dc-isolator-switch-manufacturer\/<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"product-portfolio-what-we-build\">\uc81c\ud488 \ud3ec\ud2b8\ud3f4\ub9ac\uc624(\uad6c\ucd95 \ub300\uc0c1)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PV DC combiner boxes<\/strong> (string\/array level): 600 \/ 1000 \/ <strong>1500 VDC<\/strong>, 4\u201348 strings, fuse-protected inputs, Type 2 or Type 1+2 <strong>SPD<\/strong>, main <strong>DC \uc544\uc774\uc194\ub808\uc774\ud130<\/strong> \ub610\ub294 <strong>MCCB<\/strong>, optional string monitoring.<\/li>\n\n\n\n<li><strong>PV array junction boxes<\/strong> (rooftop micro-combiner, IP65\/IP66): MC4 or gland entries, touch-safe fuse holders, rotary lockable handle.<\/li>\n\n\n\n<li><strong>ESS DC distribution panels<\/strong>: high-current busbars, feeder <strong>MCCBs<\/strong>, battery rack disconnects, Type 1+2 SPDs, shunts, and auxiliary contacts for BMS\/EMS.<\/li>\n\n\n\n<li><strong>Telecom \u221248 V DC distribution units (PDU)<\/strong>: MCB rows, low-voltage SPDs with low <strong>Up<\/strong>, shunts\/meters, alarm relays.<\/li>\n\n\n\n<li><strong>EV charger DC distribution cabinets<\/strong>: cabinet-level disconnect, feeder protection, SPDs, maintenance isolators.<\/li>\n\n\n\n<li><strong>Custom\/OEM<\/strong>: special layouts, pre-terminated harnesses, heater\/anti-condensation kits, viewing windows, custom labels &amp; QR traceability.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"architecture-components-inside-a-modern-dc-box\">Architecture &amp; Components (inside a modern DC box)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inputs<\/strong>: cable glands or MC4 bulkheads, strain relief, ferrules, touch-safe terminals.<\/li>\n\n\n\n<li><strong>Branch protection<\/strong>: <strong>gPV fuse holders (10\u00d738\/14\u00d751\/22\u00d758, NH)<\/strong> \ub610\ub294 <strong>DC MCB\/MCCB<\/strong> per string\/feeder.<\/li>\n\n\n\n<li><strong>Main protection &amp; isolation<\/strong>: door-interlocked <strong>\uc2a4\uc704\uce58 \ucc28\ub2e8\uae30<\/strong> \ub610\ub294 <strong>MCCB<\/strong> with padlockable handle.<\/li>\n\n\n\n<li><strong>Surge protection<\/strong>: <strong>Type 1\/2\/1+2 DC SPDs<\/strong> (MOV or MOV+GDT hybrids) in <strong>+\/\u2212\u2192PE<\/strong> \uadf8\ub9ac\uace0 <strong>+\u2192\u2212<\/strong> modes for PV\/ESS.<\/li>\n\n\n\n<li><strong>Busbars &amp; links<\/strong>: tin-plated copper bars, finger-safe shrouds, adequate clearances\/creepage for 1000\u20131500 VDC.<\/li>\n\n\n\n<li><strong>Monitoring &amp; alarms<\/strong>: string current sensors (Hall-effect), shunts, DC metering, temperature\/humidity sensing, <strong>dry-contact alarms<\/strong> (NO\/NC) tied to SCADA\/EMS.<\/li>\n\n\n\n<li><strong>\uc778\ud074\ub85c\uc800<\/strong>: powder-coated steel or UV-stable polycarbonate; <strong>IP65\/IP66<\/strong> outdoor options; gland plate, labeling kit, torque chart inside the lid.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"PV Combinerbox - step by step DIY tutorial\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/mlnuET_DOwI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"selection-guide-long-tail-practical\">Selection Guide (long-tail, practical)<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\uc2dc\uc2a4\ud15c \uc804\uc555(VDC)<\/strong>: choose boxes and components rated for <strong>1000 VDC<\/strong> \ub610\ub294 <strong>1500 VDC<\/strong> as required; observe any series-pole instructions for higher voltages.<\/li>\n\n\n\n<li><strong>Strings\/feeders &amp; current<\/strong>: number of inputs, max string Isc, combiner output current, and busbar ampacity with thermal margin.<\/li>\n\n\n\n<li><strong>Protection method<\/strong>: <strong>gPV \ud4e8\uc988<\/strong> vs <strong>DC MCB<\/strong> \ubb38\uc790\uc5f4\uc758 \uacbd\uc6b0 <strong>MCCB<\/strong> for feeders; ensure selective coordination upstream.<\/li>\n\n\n\n<li><strong>SPD strategy<\/strong>: <strong>\uc720\ud615 1<\/strong> at LPZ boundaries; <strong>\uc720\ud615 2<\/strong> near inverters\/ESS; consider <strong>\uc720\ud615 1+2<\/strong> at exposed sites.<\/li>\n\n\n\n<li><strong>Isolation &amp; LOTO<\/strong>: door-interlocked <strong>\uc544\uc774\uc194\ub808\uc774\ud130<\/strong> \ub610\ub294 <strong>MCCB<\/strong> with red\/yellow handle, padlockable OFF, visible isolation.<\/li>\n\n\n\n<li><strong>\ud658\uacbd<\/strong>: <strong>IP66<\/strong> for rooftop PV; gasketed lids, drain\/vent options; UV-stable plastics or painted steel; ambient &amp; derating.<\/li>\n\n\n\n<li><strong>Wiring &amp; entries<\/strong>: gland sizes, MC4\/bulkhead count, cable cross-sections, torque specs, <strong>short, straight<\/strong> internal routing.<\/li>\n\n\n\n<li><strong>Monitoring<\/strong>: string-level current\/voltage, bus current via shunt, contact outputs to PLC\/EMS; consider remote status for fuses\/SPDs.<\/li>\n\n\n\n<li><strong>Labels &amp; documentation<\/strong>: string IDs, polarity arrows, wiring diagram, torque table, QR for BOM\/traceability, maintenance log.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"typical-configurations\">Typical Configurations<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1500 V PV string combiner<\/strong>: 16\u201324 fused inputs (10\u00d738 gPV), <strong>Type 2 or Type 1+2 SPD<\/strong>, door-interlocked <strong>DC \uc544\uc774\uc194\ub808\uc774\ud130<\/strong>, tin-plated busbars, shunt + analog meter, gland plate, IP66.<\/li>\n\n\n\n<li><strong>ESS DC feeder panel<\/strong>: main <strong>MCCB<\/strong>, multiple feeder MCCBs to battery racks\/inverter DC bus, <strong>Type 1+2 SPD<\/strong>, shunt trip &amp; aux contacts, thermal sensor kit, IP54\/55.<\/li>\n\n\n\n<li><strong>Telecom \u221248 V PDU<\/strong>: dual-source inputs with changeover, rows of <strong>DC MCB<\/strong>, low-Up SPDs, shunts, common alarm relay, front-accessible fuses.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"installation-best-practices\">\uc124\uce58 \ubaa8\ubc94 \uc0ac\ub840<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mount close to the equipment (inverter DC input, battery racks) to minimize cable length and surge let-through.<\/li>\n\n\n\n<li>Keep internal conductors <strong>\uc9e7\uace0 \uace7\uac8c<\/strong>; avoid loops; observe minimum bend radius; torque to spec.<\/li>\n\n\n\n<li>Separate power and signal wiring; bond PE to local earth bar; maintain clearances &amp; creepage for 1000\u20131500 VDC.<\/li>\n\n\n\n<li>Verify polarity and <strong>\ub77c\uc778\/\ub85c\ub4dc<\/strong> orientation; apply supplied labels; record string IDs\/torques in the log sheet.<\/li>\n\n\n\n<li>Commissioning checklist: insulation\/IR, polarity, torque, SPD status, isolator operation, alarm contact test, functional current checks.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"testing-compliance-what-you-ll-see-on-the-nameplate\">Testing &amp; Compliance (what you\u2019ll see on the nameplate)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 61439-1 &amp; IEC 61439-2<\/strong> \u2014 general rules and specific requirements for <strong>low-voltage switchgear and controlgear assemblies<\/strong>; applicability up to <strong>1 500 V DC<\/strong> for assemblies like DC distribution\/combiner boxes. <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/32338?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">IEC \uc6f9\uc2a4\ud1a0\uc5b4 +1<\/a><a href=\"https:\/\/webstore.ansi.org\/standards\/iec\/iec61439eden2020?srsltid=AfmBOorEE785jsb2mQE3BJP_GK9IkntrzQIDbRPlTRgYeKem3owD_BjV&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">ANSI \u7f51\u5e97<\/a><\/li>\n\n\n\n<li><strong>IEC 61643-31<\/strong> \u2014 DC\/PV <strong>\uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58<\/strong> up to <strong>1 500 V DC<\/strong> (selection and test methods for Type 1\/2\/1+2). <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">IEC \uc6f9 \uc2a4\ud1a0\uc5b4<\/a><\/li>\n\n\n\n<li><strong>IEC 60947-3<\/strong> - \uc2a4\uc704\uce58, \ub2e8\ub85c\uae30, <strong>\uc2a4\uc704\uce58 \ucc28\ub2e8\uae30<\/strong>\ubc0f \ud4e8\uc988 \uc870\ud569 \uc7a5\uce58 \ucd5c\ub300 <strong>1 500 V DC<\/strong> (for the box\u2019s main isolator). <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/59785?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">IEC \uc6f9\uc2a4\ud1a0\uc5b4 +1<\/a><a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/100221\/51129b1647b04dfa9b717447e1055def\/IEC-60947-3-2020.pdf?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">\u6807\u51c6\u673a\u6784<\/a><\/li>\n\n\n\n<li><strong>IEC 62208<\/strong> - <strong>empty enclosures<\/strong> for low-voltage switchgear assemblies (enclosure tests and ratings). <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/67906?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">IEC \uc6f9 \uc2a4\ud1a0\uc5b4<\/a><a href=\"https:\/\/www.vde-verlag.de\/iec-normen\/preview-pdf\/info_iec62208%7Bed3.0.CMV%7Den.pdf?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">VDE Verlag<\/a><\/li>\n\n\n\n<li><strong>UL 1741<\/strong> (PV combiner\/DER equipment) and\/or <strong>UL 508A<\/strong> (industrial control panels) for North America, depending on the application. <a href=\"https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL1741_3_S_20210928&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">UL Standards Online+1<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong>Authoritative external links (DoFollow)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/32338\" rel=\"noopener\">IEC 61439-1<\/a> (general rules): <a>https:\/\/webstore.iec.ch\/en\/publication\/32338<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/IEC 61439-2 (assemblies to 1500 V DC)\">IEC 61439-2 (assemblies to 1500 V DC)<\/a>: <a>https:\/\/webstore.iec.ch\/en\/publication\/30043<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931\" rel=\"noopener\">IEC 61643-31 (DC\/PV SPDs)<\/a>: <a>https:\/\/webstore.iec.ch\/en\/publication\/26931<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/59785\" rel=\"noopener\">IEC 60947-3 (switch-disconnectors)<\/a>: <a>https:\/\/webstore.iec.ch\/en\/publication\/59785<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/67906\" rel=\"noopener\">IEC 62208 (empty enclosures)<\/a>: <a>https:\/\/webstore.iec.ch\/en\/publication\/67906<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL508A_3_S_20180424\" rel=\"noopener\">UL 1741<\/a>: <a>https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL1741_3_S_20210928<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL508A_3_S_20180424\" rel=\"noopener\">UL 508A<\/a>: <a>https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL508A_3_S_20180424<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-work-with-a-custom-dc-distribution-box-manufacturer\">Why work with a custom DC distribution box manufacturer<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub9de\ucda4\ud615 <strong>string\/feeder counts<\/strong>, <strong>busbar ampacity<\/strong>, <strong>1000\/1500 VDC<\/strong> insulation distances, device brands, and layouts to your EPC standards.<\/li>\n\n\n\n<li>Choice of <strong>gPV \ud4e8\uc988<\/strong> vs <strong>DC \ucc28\ub2e8\uae30<\/strong>, <strong>Type 1\/2\/1+2 SPDs<\/strong>, door-interlocked isolators, shunts\/meters, and alarm relays.<\/li>\n\n\n\n<li>Outdoor-rated <strong>IP66<\/strong> combiner boxes with UV-stable enclosures and heater\/vent options; indoor ESS cabinets with maintenance space.<\/li>\n\n\n\n<li>Complete documentation package: BOM, wiring diagram, torque table, test sheet, QR traceability; support for IEC\/UL file submissions.<\/li>\n\n\n\n<li>Fast lead time, OEM branding, serial labeling, spare-parts programs.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-eea12fe\" data-block-id=\"eea12fe\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-eea12fe-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7636285\" data-v=\"4\" data-block-id=\"7636285\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7636285-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-7636285-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-2f2a652\" id=\"request-a-custom-quote\" data-block-id=\"2f2a652\"><h2 class=\"stk-block-heading__text\">\ub9de\ucda4 \uacac\uc801 \uc694\uccad\ud558\uae30<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-1525dc6\" data-block-id=\"1525dc6\"><p class=\"stk-block-text__text\">\ubcf4\ub0b4\uae30 <strong>VDC<\/strong>, number of <strong>strings\/feeders<\/strong>, max <strong>Isc<\/strong> and output current, <strong>SPD type<\/strong> (1\/2\/1+2), preferred <strong>protection<\/strong> (fuse\/MCB\/MCCB), <strong>\uc544\uc774\uc194\ub808\uc774\ud130<\/strong> requirement, <strong>enclosure rating<\/strong> (IP65\/IP66), wiring\/entry details, and monitoring\/alarm needs.<\/p><\/div>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-eb1030c\" data-block-id=\"eb1030c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button popmake-899 stk-block stk-468aa9b popmake-899\" data-block-id=\"468aa9b\"><style>.stk-468aa9b {border-top-left-radius:var(--stk--preset--border-radius--large, 16px) !important;border-top-right-radius:var(--stk--preset--border-radius--large, 16px) !important;border-bottom-right-radius:var(--stk--preset--border-radius--large, 16px) !important;border-bottom-left-radius:var(--stk--preset--border-radius--large, 16px) !important;overflow:hidden !important;}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\"><span class=\"stk-button__inner-text\">\uacac\uc801<\/span><\/a><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-6f781cb\" id=\"faq\" data-block-id=\"6f781cb\"><h2 class=\"stk-block-heading__text\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2><\/div>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-bc5d6fa is-style-default\" data-block-id=\"bc5d6fa\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-376d5db stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"376d5db\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-376d5db-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-376d5db-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-f9d5dfd\" data-block-id=\"f9d5dfd\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-8631f0c\" id=\"q-1-whats-the-difference-between-a-dc-distribution-box-combiner-box-and-junction-box\" data-block-id=\"8631f0c\"><h4 class=\"stk-block-heading__text\">Q1: What\u2019s the difference between a DC distribution box, combiner box, and junction box?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-642ac77\" data-block-id=\"642ac77\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-642ac77\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-642-ac-77-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-642-ac-77-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a873845 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"a873845\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a873845-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a873845-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-45519bd\" data-block-id=\"45519bd\"><p class=\"stk-block-text__text\">All are DC enclosures for collection and protection. A combiner box focuses on string aggregation (PV), a junction box is simpler with terminaling\/splicing, while a distribution box\/panel adds feeders, isolation, SPDs, and monitoring.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-ee4d02e is-style-default\" data-block-id=\"ee4d02e\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-49907a7 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"49907a7\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-49907a7-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-49907a7-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-1c2d9f4\" data-block-id=\"1c2d9f4\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-8e08c87\" id=\"q-2-how-do-i-size-a-1500-v-pv-dc-combiner-box\" data-block-id=\"8e08c87\"><h4 class=\"stk-block-heading__text\">Q2: How do I size a 1500 V PV DC combiner box?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-9f11927\" data-block-id=\"9f11927\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-9f11927\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-9-f-11927-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-9-f-11927-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e4ddefd stk-block-accordion__content\" data-v=\"4\" data-block-id=\"e4ddefd\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e4ddefd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e4ddefd-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-9664cbe\" data-block-id=\"9664cbe\"><p class=\"stk-block-text__text\">Count strings (e.g., 24), choose gPV fuses per string based on Isc and temperature, select Type 2 or Type 1+2 SPD, size the output busbar and main isolator\/MCCB for combined current, and confirm clearances\/creepage for 1500 VDC.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-017f144 is-style-default\" data-block-id=\"017f144\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b9e1b99 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"b9e1b99\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b9e1b99-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-b9e1b99-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-4f60f17\" data-block-id=\"4f60f17\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-d11f105\" id=\"q-3-when-should-i-use-fuses-vs-dc-breakers-on-strings\" data-block-id=\"d11f105\"><h4 class=\"stk-block-heading__text\">Q3: When should I use fuses vs DC breakers on strings?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-e768984\" data-block-id=\"e768984\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-e768984\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-e-768984-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-e-768984-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-acc3c89 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"acc3c89\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-acc3c89-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-acc3c89-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-2c15e38\" data-block-id=\"2c15e38\"><p class=\"stk-block-text__text\">gPV fuses are compact and fast for strings; DC MCBs allow reset and visual pole isolation. Choose based on maintenance philosophy and coordination with the main device.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-8510696 is-style-default\" data-block-id=\"8510696\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f490b71 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"f490b71\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f490b71-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-f490b71-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-bae5eae\" data-block-id=\"bae5eae\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-2e303c1\" id=\"q-4-do-i-need-both-common-mode-\u2192pe-and-differential-\uff0b\u2192\u2212-sp-ds\" data-block-id=\"2e303c1\"><h4 class=\"stk-block-heading__text\">Q4: Do I need both common-mode (\u00b1\u2192PE) and differential (\uff0b\u2192\u2212) SPDs?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-5d4e02f\" data-block-id=\"5d4e02f\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-5d4e02f\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-5-d-4-e-02-f-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-5-d-4-e-02-f-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a884f01 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"a884f01\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a884f01-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a884f01-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-bee359c\" data-block-id=\"bee359c\"><p class=\"stk-block-text__text\">Often yes in PV\/ESS. \u00b1\u2192PE addresses lightning coupling to earth; \uff0b\u2192\u2212 protects electronics. Many boxes implement both modes.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-5f48ec3 is-style-default\" data-block-id=\"5f48ec3\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-af33269 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"af33269\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-af33269-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-af33269-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-b3a24fe\" data-block-id=\"b3a24fe\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-d5cb36d\" id=\"q-5-what-enclosure-rating-do-i-need-for-rooftop-pv\" data-block-id=\"d5cb36d\"><h4 class=\"stk-block-heading__text\">Q5: What enclosure rating do I need for rooftop PV?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-2b4dee1\" data-block-id=\"2b4dee1\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-2b4dee1\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-b-4-dee-1-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-b-4-dee-1-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-eb0f254 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"eb0f254\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-eb0f254-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-eb0f254-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-2638826\" data-block-id=\"2638826\"><p class=\"stk-block-text__text\">Typically IP66 with UV-stable materials, drain\/vent options, and sealed glands. Indoor ESS or inverter rooms may use IP54\u2013IP55 metal cabinets.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-da316c4 is-style-default\" data-block-id=\"da316c4\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3b446e4 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"3b446e4\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3b446e4-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-3b446e4-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-ab57acc\" data-block-id=\"ab57acc\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-a63a0f0\" id=\"q-6-which-standards-apply-to-dc-distribution-combiner-boxes\" data-block-id=\"a63a0f0\"><h4 class=\"stk-block-heading__text\">Q6: Which standards apply to DC distribution\/combiner boxes?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-bd14e92\" data-block-id=\"bd14e92\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-bd14e92\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-bd-14-e-92-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-bd-14-e-92-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-07e1565 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"07e1565\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-07e1565-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-07e1565-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-6e53a06\" data-block-id=\"6e53a06\"><p class=\"stk-block-text__text\">Assemblies are commonly built to IEC 61439-1\/-2, with IEC 62208 for enclosures, IEC 61643-31 for DC SPDs, and IEC 60947-3 for the isolator. In North America, look for UL 1741 (PV) and\/or UL 508A (industrial panels).<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-153fa40 is-style-default\" data-block-id=\"153fa40\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ef4aaaf stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"ef4aaaf\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ef4aaaf-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-ef4aaaf-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-f3f89ec\" data-block-id=\"f3f89ec\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-a25481f\" id=\"q-7-how-is-string-monitoring-implemented\" data-block-id=\"a25481f\"><h4 class=\"stk-block-heading__text\">Q7: How is string monitoring implemented?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-050e4e7\" data-block-id=\"050e4e7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-050e4e7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-050-e-4-e-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-050-e-4-e-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ef3c672 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"ef3c672\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ef3c672-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ef3c672-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-808de20\" data-block-id=\"808de20\"><p class=\"stk-block-text__text\">Hall-effect sensors or shunts measure string\/bus current; a controller aggregates data and drives dry-contact alarms to SCADA\/EMS.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-61e01b3 is-style-default\" data-block-id=\"61e01b3\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e5594af stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"e5594af\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e5594af-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-e5594af-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-8539d4f\" data-block-id=\"8539d4f\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-0601c53\" id=\"q-8-how-do-i-minimize-surge-let-through-effective-up-at-the-inverter\" data-block-id=\"0601c53\"><h4 class=\"stk-block-heading__text\">Q8: How do I minimize surge let-through (effective Up) at the inverter?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-471e4c7\" data-block-id=\"471e4c7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-471e4c7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-471-e-4-c-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-471-e-4-c-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1f40def stk-block-accordion__content\" data-v=\"4\" data-block-id=\"1f40def\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1f40def-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1f40def-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-8c92bd5\" data-block-id=\"8c92bd5\"><p class=\"stk-block-text__text\">Place the SPD close to the inverter input, <strong>\uc9e7\uace0 \uace7\uac8c<\/strong> leads, bonded PE bar, and decoupling distance from upstream SPDs where required.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-6ca5560 is-style-default\" data-block-id=\"6ca5560\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-83d5fb5 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"83d5fb5\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-83d5fb5-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-83d5fb5-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-36fac21\" data-block-id=\"36fac21\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-57d51b3\" id=\"q-9-can-you-integrate-a-door-interlocked-main-isolator\" data-block-id=\"57d51b3\"><h4 class=\"stk-block-heading__text\">Q9: Can you integrate a door-interlocked main isolator?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-04e5511\" data-block-id=\"04e5511\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-04e5511\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-04-e-5511-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-04-e-5511-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4757fde stk-block-accordion__content\" data-v=\"4\" data-block-id=\"4757fde\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4757fde-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4757fde-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-2c8f863\" data-block-id=\"2c8f863\"><p class=\"stk-block-text__text\">Yes. We offer switch-disconnectors or MCCBs with red\/yellow padlockable handles, meeting LOTO practices.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-7153dc3 is-style-default\" data-block-id=\"7153dc3\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4e1422f stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"4e1422f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4e1422f-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-4e1422f-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-700d016\" data-block-id=\"700d016\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-6b65581\" id=\"q-10-what-documentation-is-supplied-with-each-box\" data-block-id=\"6b65581\"><h4 class=\"stk-block-heading__text\">Q10: What documentation is supplied with each box?<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-9d08aae\" data-block-id=\"9d08aae\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-9d08aae\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-9-d-08-aae-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-9-d-08-aae-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e5eceaa stk-block-accordion__content\" data-v=\"4\" data-block-id=\"e5eceaa\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e5eceaa-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e5eceaa-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-c2dbdc0\" data-block-id=\"c2dbdc0\"><p class=\"stk-block-text__text\">BOM, wiring diagram, torque table, verification tests (IR, dielectric, functional), labels\/IDs, and QR traceability. OEM file packs are available for IEC\/UL submissions.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/details>","protected":false},"excerpt":{"rendered":"<p>DC Distribution Box Manufacturer PV, ESS, EV charging, telecom &amp; industrial DC distribution up to 1500 VDC A DC distribution box\u2014also called a DC combiner box, DC junction box, or DC distribution panel\u2014collects multiple DC inputs, protects each circuit, and delivers a single, organized output to inverters, battery racks, DC chargers, telecom rectifiers, or DC [&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-912","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/pages\/912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/comments?post=912"}],"version-history":[{"count":3,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/pages\/912\/revisions"}],"predecessor-version":[{"id":935,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/pages\/912\/revisions\/935"}],"wp:attachment":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/media?parent=912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}