{"id":29402,"date":"2026-06-12T11:21:17","date_gmt":"2026-06-12T03:21:17","guid":{"rendered":"https:\/\/www.cnspd.com\/?page_id=29402"},"modified":"2026-06-23T16:35:36","modified_gmt":"2026-06-23T08:35:36","slug":"29402-2","status":"publish","type":"page","link":"https:\/\/www.cnspd.com\/fr\/dc-spd-up-to-1500v\/","title":{"rendered":"SPD 1500V DC pour syst\u00e8mes photovolta\u00efques"},"content":{"rendered":"
\n\n\n\n\n1500V DC SPD for Solar PV Systems | Type 1+2 Selection | LEEYEE<\/title>\n<meta name=\"description\" content=\"Choose a 1500V DC SPD for PV combiner boxes and inverter DC inputs. 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.ly-hero-grid,.ly-answer-box,.ly-product-feature,.ly-cta-grid{grid-template-columns:1fr}\n .ly-product-stage{min-height:390px}\n .ly-product-card img{height:255px}\n .ly-proofbar,.ly-evidence,.ly-downloads,.ly-flow{grid-template-columns:1fr 1fr}\n .ly-proof:nth-child(2){border-right:0}\n .ly-proof:nth-child(-n+2){border-bottom:1px solid var(--line)}\n .ly-grid3{grid-template-columns:1fr}\n .ly-path{grid-template-columns:1fr 1fr}\n .ly-path-step:after{display:none}\n}\n\n@media(max-width:620px){\n .ly-wrap{width:min(100% - 28px,1180px)}\n .ly-section{padding:54px 0}\n .ly-hero{padding-top:42px}\n .ly-title{font-size:39px}\n .ly-h2{font-size:31px}\n .ly-direct{font-size:17px}\n .ly-product-stage{min-height:auto;margin-top:15px}\n .ly-product-card{padding:17px;border-radius:16px}\n .ly-product-card img{height:225px}\n .ly-proofbar{transform:translateY(24px)}\n .ly-answer-section{padding-top:82px}\n .ly-answer-box{padding:28px 22px}\n .ly-answer-box h2{font-size:28px}\n .ly-class-grid,.ly-install-grid{grid-template-columns:1fr}\n .ly-path{grid-template-columns:1fr}\n .ly-spec-grid{grid-template-columns:1fr 1fr}\n .ly-downloads,.ly-evidence,.ly-flow{grid-template-columns:1fr}\n .ly-photo img{height:290px}\n .ly-btn{width:100%}\n}\n<\/style>\n<\/head>\n\n<body>\n<div class=\"ly1500\">\n\n<section class=\"ly-hero\">\n <div class=\"ly-wrap\">\n <div class=\"ly-hero-grid\">\n <div>\n <div class=\"ly-crumb\">\n <a href=\"https:\/\/www.cnspd.com\/\">Home<\/a> \/\n <a href=\"https:\/\/www.cnspd.com\/shop\/surge-protective-device\/\">Surge Protective Device<\/a> \/\n <a href=\"https:\/\/www.cnspd.com\/shop\/dc-surge-protective-device\/\">DC SPD<\/a> \/\n 1500V DC SPD\n <\/div>\n\n <div class=\"ly-kicker\">1500V DC Surge Protection<\/div>\n\n <h1 class=\"ly-title\">1500V DC SPD for Solar PV Systems<\/h1>\n\n <p class=\"ly-direct\">\n <strong>A 1500V DC SPD protects high-voltage PV strings, combiner boxes and inverter DC inputs against transient overvoltage.<\/strong>\n Correct selection depends on U<sub>cpv<\/sub>, lightning exposure, protection class, discharge current, voltage protection level and installation position\u2014not on the \u201c1500V\u201d marking alone.\n <\/p>\n\n <div class=\"ly-pills\">\n <span class=\"ly-pill\">IEC 61643-31<\/span>\n <span class=\"ly-pill\">Type 1+2 \/ Class I+II<\/span>\n <span class=\"ly-pill\">Ucpv 1500V DC<\/span>\n <span class=\"ly-pill\">PV Combiner & Inverter Protection<\/span>\n <\/div>\n\n <div class=\"ly-btns\">\n <a href=\"javascript:void(0);\" class=\"ly-btn ly-btn-primary leeyee-site-popup-btn\" role=\"button\">Request SPD Selection<\/a>\n <a href=\"#product\" class=\"ly-btn ly-btn-outline\">View 1500V Model<\/a>\n <\/div>\n <\/div>\n\n <div class=\"ly-product-stage\">\n <div class=\"ly-product-card\">\n <img decoding=\"async\" src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/06\/IMG_2051-scaled.jpg\" alt=\"LEEYEE LY1-C40PV 1500V DC SPD for solar PV combiner boxes and inverter inputs\">\n <div class=\"ly-mini-specs\">\n <div class=\"ly-mini-spec\"><strong>1500V DC<\/strong><span>Ucpv<\/span><\/div>\n <div class=\"ly-mini-spec\"><strong>20kA<\/strong><span>In, 8\/20 \u03bcs<\/span><\/div>\n <div class=\"ly-mini-spec\"><strong>40kA<\/strong><span>Imax, 8\/20 \u03bcs<\/span><\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"ly-proofbar\">\n <div class=\"ly-proof\"><strong>Dedicated PV DC Design<\/strong><span>Not a repurposed AC SPD<\/span><\/div>\n <div class=\"ly-proof\"><strong>Pluggable Modules<\/strong><span>Fast field replacement<\/span><\/div>\n <div class=\"ly-proof\"><strong>TUV & CE Files<\/strong><span>Downloadable verification<\/span><\/div>\n <div class=\"ly-proof\"><strong>OEM \/ Project Supply<\/strong><span>For EPCs and distributors<\/span><\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-answer-section\">\n <div class=\"ly-wrap\">\n\n <div class=\"ly-answer-box ly-direct-answer\">\n <h2>Direct Buyer Answer<\/h2>\n <p>\n <strong>Choose a 1500V DC SPD when the PV array is designed for high-voltage DC operation and surge protection is required at the PV combiner box, DC distribution cabinet or inverter DC input.<\/strong>\n For 1500V PV systems, do not use a 1000V DC SPD or an ordinary AC SPD as a substitute. The correct model must match U<sub>cpv<\/sub>, Type\/Class, I<sub>imp<\/sub>, I<sub>n<\/sub>, I<sub>max<\/sub>, U<sub>p<\/sub>, installation position and project lightning exposure.\n <\/p>\n <\/div>\n\n <div class=\"ly-answer-box\">\n <h2>What is a 1500V DC SPD?<\/h2>\n <p>\n A 1500V DC surge protective device is connected in parallel on the DC side of a photovoltaic system. When lightning-induced or switching transients occur, it limits the voltage reaching protected equipment and provides a controlled path for surge current. Typical installation points include PV string combiner boxes, DC distribution cabinets and inverter DC inputs.\n <\/p>\n <\/div>\n\n <div class=\"ly-grid3\">\n <div class=\"ly-card\">\n <div class=\"ly-card-label\">01<\/div>\n <h3 class=\"ly-h3\">Protect high-value inverters<\/h3>\n <p>Reduce the transient stress reaching inverter DC input electronics and connected monitoring equipment.<\/p>\n <\/div>\n\n <div class=\"ly-card\">\n <div class=\"ly-card-label\">02<\/div>\n <h3 class=\"ly-h3\">Support 1500V PV architecture<\/h3>\n <p>Match modern high-voltage strings used to reduce current, cable losses and balance-of-system costs.<\/p>\n <\/div>\n\n <div class=\"ly-card\">\n <div class=\"ly-card-label\">03<\/div>\n <h3 class=\"ly-h3\">Reduce avoidable downtime<\/h3>\n <p>Help lower the risk of surge-related shutdowns, replacement work and unplanned field maintenance.<\/p>\n <\/div>\n <\/div>\n\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-soft\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Voltage Matching<\/div>\n\n <h2 class=\"ly-h2\">1000V DC SPD vs 1500V DC SPD<\/h2>\n\n <p class=\"ly-lead\">\n A 1500V PV system requires a DC SPD with a suitable U<sub>cpv<\/sub> rating. A 1000V DC SPD should not be used as a substitute in a 1500V photovoltaic array.\n <\/p>\n\n <div class=\"ly-table-wrap\">\n <table class=\"ly-table\">\n <thead>\n <tr>\n <th>Item<\/th>\n <th>1000V DC SPD<\/th>\n <th>1500V DC SPD<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Main use<\/td>\n <td>1000V-class PV strings and smaller commercial systems<\/td>\n <td>1500V-class commercial and utility-scale PV systems<\/td>\n <\/tr>\n <tr>\n <td>Key rating<\/td>\n <td>U<sub>cpv<\/sub> suitable for the actual 1000V-class array<\/td>\n <td>U<sub>cpv<\/sub> suitable for the actual 1500V-class array<\/td>\n <\/tr>\n <tr>\n <td>Typical position<\/td>\n <td>PV combiner box, inverter DC input, DC cabinet<\/td>\n <td>PV combiner box, inverter DC input, high-voltage DC distribution<\/td>\n <\/tr>\n <tr>\n <td>Wrong selection risk<\/td>\n <td colspan=\"2\">A lower-rated SPD may be overstressed during normal PV operation and should not be selected only because the product appearance or kA rating looks similar.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p class=\"ly-note\">\n Selection note: always calculate the maximum PV open-circuit voltage at the lowest expected module temperature before confirming the SPD U<sub>cpv<\/sub> rating.\n <\/p>\n <\/div>\n<\/section>\n\n<section class=\"ly-section\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Protection Class<\/div>\n\n <h2 class=\"ly-h2\">Type 1+2 or Type 2: Which 1500V DC SPD Is Required?<\/h2>\n\n <p class=\"ly-lead\">\n The system voltage does not determine the protection class by itself. Lightning protection zones, external lightning protection, installation position and project specifications must also be considered.\n <\/p>\n\n <div class=\"ly-class-grid\">\n <div class=\"ly-class\">\n <div class=\"ly-class-top\">\n <small>Combined lightning-current and surge protection<\/small>\n <h3>Type 1+2 DC SPD<\/h3>\n <p>For positions where partial lightning current may enter the PV DC system, while also providing Type 2 surge protection.<\/p>\n <\/div>\n\n <div class=\"ly-class-body\">\n <ul class=\"ly-check\">\n <li>Utility-scale and exposed open-field PV plants<\/li>\n <li>Arrays associated with an external lightning protection system<\/li>\n <li>Combiner boxes at higher-exposure LPZ boundaries<\/li>\n <li>Projects requiring 10\/350 \u03bcs impulse-current capability<\/li>\n <\/ul>\n\n <div class=\"ly-current\">\n <strong>Available LEEYEE model:<\/strong> LY1-C40PV\/3(S), Class I+II \/ Type 1+2, 1500V DC.\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"ly-class\">\n <div class=\"ly-class-top\">\n <small>Induced surge and switching-transient protection<\/small>\n <h3>Type 2 DC SPD<\/h3>\n <p>For installation positions where direct lightning-current duty is not specified, or as coordinated downstream protection.<\/p>\n <\/div>\n\n <div class=\"ly-class-body\">\n <ul class=\"ly-check\">\n <li>Inverter DC inputs and downstream DC distribution<\/li>\n <li>Commercial PV systems with lower direct-lightning exposure<\/li>\n <li>Secondary protection coordinated with upstream Type 1+2<\/li>\n <li>Projects assessed mainly with an 8\/20 \u03bcs current waveform<\/li>\n <\/ul>\n\n <div class=\"ly-current\">\n <strong>Need a Type 2 configuration?<\/strong> Send the project voltage, topology and required ratings for model confirmation rather than selecting by label alone.\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"ly-rule\">\n <strong>Selection rule:<\/strong> choose Type 1+2 when lightning-current components must be considered; choose Type 2 for induced surges and switching transients. Large PV plants may use coordinated protection at more than one location.\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-soft\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Technical Selection<\/div>\n\n <h2 class=\"ly-h2\">Seven Ratings That Decide Whether a 1500V DC SPD Is Suitable<\/h2>\n\n <p class=\"ly-lead\">\n A technically correct model must match the actual array voltage, equipment withstand level, surge environment, short-circuit conditions and PV grounding topology.\n <\/p>\n\n <div class=\"ly-table-wrap\">\n <table class=\"ly-table\">\n <thead>\n <tr>\n <th>Rating<\/th>\n <th>Meaning<\/th>\n <th>Buyer check<\/th>\n <\/tr>\n <\/thead>\n\n <tbody>\n <tr>\n <td>U<sub>cpv<\/sub><\/td>\n <td>Maximum continuous operating voltage for a photovoltaic SPD.<\/td>\n <td>Compare it with the maximum calculated PV open-circuit voltage at the lowest expected module temperature.<\/td>\n <\/tr>\n <tr>\n <td>Type \/ Class<\/td>\n <td>Type 1+2 or Type 2 classification.<\/td>\n <td>Match it to lightning exposure, LPZ position, external lightning protection and the project specification.<\/td>\n <\/tr>\n <tr>\n <td>I<sub>imp<\/sub><\/td>\n <td>Impulse discharge current using the 10\/350 \u03bcs waveform.<\/td>\n <td>Required where Type 1 lightning-current duty is specified.<\/td>\n <\/tr>\n <tr>\n <td>I<sub>n<\/sub> \/ I<sub>max<\/sub><\/td>\n <td>Nominal and maximum discharge current using the 8\/20 \u03bcs waveform.<\/td>\n <td>Assess repeated surge duty and the maximum Type 2 discharge capability.<\/td>\n <\/tr>\n <tr>\n <td>U<sub>p<\/sub><\/td>\n <td>Voltage protection level measured during discharge.<\/td>\n <td>Coordinate it with the impulse withstand level of the inverter and other protected equipment.<\/td>\n <\/tr>\n <tr>\n <td>I<sub>scpv<\/sub> \/ SCCR<\/td>\n <td>PV short-circuit withstand or short-circuit current rating.<\/td>\n <td>Ensure the SPD and its disconnection arrangement are suitable for available fault current.<\/td>\n <\/tr>\n <tr>\n <td>Protection mode<\/td>\n <td>Internal connection between DC+, DC\u2212 and PE.<\/td>\n <td>Confirm compatibility with the PV system topology and grounding arrangement.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p class=\"ly-note\">\n Do not select a PV SPD from Imax alone. Ucpv, Up, protection class, fault-current suitability and system topology are equally important.\n <\/p>\n <\/div>\n<\/section>\n\n<section class=\"ly-section\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Protection Architecture<\/div>\n\n <h2 class=\"ly-h2\">Where Is a 1500V DC SPD Installed?<\/h2>\n\n <p class=\"ly-lead\">\n The SPD should be positioned as part of a coordinated protection path, close to the circuit section or equipment it protects.\n <\/p>\n\n <div class=\"ly-path\">\n <div class=\"ly-path-step\"><b>01<\/b><span>PV Array<\/span><\/div>\n <div class=\"ly-path-step\"><b>02<\/b><span>String Combiner Box<\/span><\/div>\n <div class=\"ly-path-step\"><b>03<\/b><span>1500V DC SPD<\/span><\/div>\n <div class=\"ly-path-step\"><b>04<\/b><span>Inverter DC Input<\/span><\/div>\n <div class=\"ly-path-step\"><b>05<\/b><span>AC & Signal Protection<\/span><\/div>\n <\/div>\n\n <div class=\"ly-install-grid\">\n <div class=\"ly-panel\">\n <h3>Installation priorities<\/h3>\n <ul class=\"ly-do\">\n <li>Keep SPD connecting conductors short, direct and free from unnecessary loops.<\/li>\n <li>Install close to the equipment or circuit section being protected.<\/li>\n <li>Coordinate DC protection with AC-side and communication-line SPDs.<\/li>\n <li>Use the specified conductor size, torque and backup protection.<\/li>\n <li>Add coordinated protection when cable distance or exposure requires it.<\/li>\n <\/ul>\n <\/div>\n\n <div class=\"ly-panel\">\n <h3>Common mistakes<\/h3>\n <ul class=\"ly-dont\">\n <li>Installing a 1000V-rated SPD in a 1500V PV system.<\/li>\n <li>Selecting only by Imax and ignoring Ucpv or Up.<\/li>\n <li>Using long earth conductors that increase the installed protection level.<\/li>\n <li>Using an ordinary AC SPD as a substitute for a PV DC SPD.<\/li>\n <li>Protecting the DC path while leaving AC and signal paths exposed.<\/li>\n <\/ul>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-soft\" id=\"product\">\n <div class=\"ly-wrap\">\n <div class=\"ly-product-feature\">\n <div class=\"ly-photo\">\n <img decoding=\"async\" src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/06\/IMG_2051-scaled.jpg\" alt=\"LY1-C40PV 3 pole Type 1+2 1500V DC surge protective device\">\n <\/div>\n\n <div>\n <div class=\"ly-kicker\">Available 1500V Model<\/div>\n <div class=\"ly-model-line\">LY1-C40PV\/3(S) \u00b7 Pluggable Multi-Pole PV SPD<\/div>\n\n <h2 class=\"ly-h2\">Type 1+2 1500V DC SPD for PV Combiner and Inverter Protection<\/h2>\n\n <p class=\"ly-lead\">\n A replaceable-cartridge PV surge protective device for high-voltage solar arrays, string combiner boxes, DC distribution panels and inverter DC inputs.\n <\/p>\n\n <div class=\"ly-spec-grid\">\n <div class=\"ly-spec\"><span>Maximum operating voltage<\/span><strong>Ucpv 1500V DC<\/strong><\/div>\n <div class=\"ly-spec\"><span>Protection class<\/span><strong>Type 1+2 \/ Class I+II<\/strong><\/div>\n <div class=\"ly-spec\"><span>Impulse discharge current<\/span><strong>Iimp 6.25kA<\/strong><\/div>\n <div class=\"ly-spec\"><span>Nominal discharge current<\/span><strong>In 20kA<\/strong><\/div>\n <div class=\"ly-spec\"><span>Maximum discharge current<\/span><strong>Imax 40kA<\/strong><\/div>\n <div class=\"ly-spec\"><span>Voltage protection level<\/span><strong>Up 5.6kV<\/strong><\/div>\n <div class=\"ly-spec\"><span>Protection mode<\/span><strong>DC+ \/ DC\u2212 to PE<\/strong><\/div>\n <div class=\"ly-spec\"><span>Mounting<\/span><strong>35mm DIN rail<\/strong><\/div>\n <\/div>\n\n <div class=\"ly-btns\">\n <a href=\"https:\/\/www.cnspd.com\/ly1-c40pv3s-1500vd4-pluggable-multi-pole-spd-product\/\" target=\"_blank\" rel=\"noopener\" class=\"ly-btn ly-btn-primary\">View Product Details<\/a>\n <a href=\"javascript:void(0);\" class=\"ly-btn ly-btn-outline leeyee-site-popup-btn\" role=\"button\">Get Price & Datasheet<\/a>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"ly-downloads\">\n <a class=\"ly-download\" href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/07\/LY1-C40PV-3S-1500VD4-Pluggable-Multi-Pole-SPD.pdf\" target=\"_blank\" rel=\"noopener\">\n <span class=\"ly-icon\">PDF<\/span>\n <span>Parameter Sheet<small>1500V model data<\/small><\/span>\n <\/a>\n\n <a class=\"ly-download\" href=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/07\/LEEYEE-User-manual.pdf\" target=\"_blank\" rel=\"noopener\">\n <span class=\"ly-icon\">PDF<\/span>\n <span>User Manual<small>Installation reference<\/small><\/span>\n <\/a>\n\n <a class=\"ly-download\" href=\"https:\/\/www.cnspd.com\/patents-certificates\/\" target=\"_blank\" rel=\"noopener\">\n <span class=\"ly-icon\">TUV<\/span>\n <span>TUV \/ Certificate Files<small>Verification page<\/small><\/span>\n <\/a>\n\n <a class=\"ly-download\" href=\"https:\/\/www.cnspd.com\/patents-certificates\/\" target=\"_blank\" rel=\"noopener\">\n <span class=\"ly-icon\">CE<\/span>\n <span>CE \/ Compliance Files<small>Certificate page<\/small><\/span>\n <\/a>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Evidence Before Claims<\/div>\n\n <h2 class=\"ly-h2\">What Buyers Can Verify on This Page<\/h2>\n\n <p class=\"ly-lead\">\n A credible product category page should connect claims to a model, a parameter file, a standard and a real application\u2014not rely on generic \u201chigh quality\u201d language.\n <\/p>\n\n <div class=\"ly-evidence\">\n <div class=\"ly-card\">\n <div class=\"ly-evidence-tag\">Product identity<\/div>\n <h3 class=\"ly-h3\">Named model<\/h3>\n <p>LY1-C40PV\/3(S) is linked to a dedicated technical product page rather than shown as an anonymous category image.<\/p>\n <\/div>\n\n <div class=\"ly-card\">\n <div class=\"ly-evidence-tag\">Technical facts<\/div>\n <h3 class=\"ly-h3\">Readable ratings<\/h3>\n <p>Ucpv, protection class, Iimp, In, Imax, Up, protection mode and mounting are presented as entity\u2013attribute values.<\/p>\n <\/div>\n\n <div class=\"ly-card\">\n <div class=\"ly-evidence-tag\">Documentation<\/div>\n <h3 class=\"ly-h3\">Downloadable files<\/h3>\n <p>Parameter sheet, user manual and certificate page links are directly available for buyer review.<\/p>\n <\/div>\n\n <div class=\"ly-card\">\n <div class=\"ly-evidence-tag\">Application context<\/div>\n <h3 class=\"ly-h3\">Clear system position<\/h3>\n <p>The model is connected to PV arrays, combiner boxes, DC distribution and inverter input protection.<\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-soft\">\n <div class=\"ly-wrap\">\n <div class=\"ly-kicker\">Buyer Workflow<\/div>\n\n <h2 class=\"ly-h2\">From Project Data to Confirmed 1500V SPD Selection<\/h2>\n\n <p class=\"ly-lead\">\n This category page helps buyers narrow the requirement; final confirmation should use actual project data.\n <\/p>\n\n <div class=\"ly-flow\">\n <div class=\"ly-flow-card\">\n <b>STEP 1<\/b>\n <h3>Send system voltage<\/h3>\n <p>Maximum array open-circuit voltage and lowest site temperature.<\/p>\n <\/div>\n\n <div class=\"ly-flow-card\">\n <b>STEP 2<\/b>\n <h3>Define position<\/h3>\n <p>Combiner box, DC distribution cabinet or inverter input.<\/p>\n <\/div>\n\n <div class=\"ly-flow-card\">\n <b>STEP 3<\/b>\n <h3>Confirm exposure<\/h3>\n <p>External lightning protection, LPZ boundary and required type.<\/p>\n <\/div>\n\n <div class=\"ly-flow-card\">\n <b>STEP 4<\/b>\n <h3>Verify model<\/h3>\n <p>Ratings, topology, remote contact, documentation and quantity.<\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section\">\n <div class=\"ly-wrap\">\n <div style=\"text-align:center\">\n <div class=\"ly-kicker\">Frequently Asked Questions<\/div>\n <h2 class=\"ly-h2\">1500V DC SPD FAQ<\/h2>\n <\/div>\n\n <div class=\"ly-faq\">\n <details open>\n <summary>What is a 1500V DC SPD used for?<\/summary>\n <p>It is used on the DC side of high-voltage photovoltaic systems to limit transient overvoltage and divert surge current. Typical locations include string combiner boxes, DC distribution cabinets and inverter DC inputs.<\/p>\n <\/details>\n\n <details>\n <summary>Can a 1000V DC SPD be used in a 1500V PV system?<\/summary>\n <p>No. The SPD maximum continuous operating voltage must be suitable for the actual maximum array voltage. A lower-rated SPD may be overstressed during normal operation.<\/p>\n <\/details>\n\n <details>\n <summary>Is \u201c1500V\u201d the nominal system voltage or Ucpv?<\/summary>\n <p>Product markings and datasheets must be checked carefully. For PV SPD selection, Ucpv is the important continuous operating-voltage rating and should be compared with the calculated maximum open-circuit voltage of the array.<\/p>\n <\/details>\n\n <details>\n <summary>When is a Type 1+2 1500V DC SPD required?<\/summary>\n <p>Type 1+2 is commonly selected where lightning-current components may enter the DC system, where an external lightning protection system is present, or where the project requires 10\/350 \u03bcs impulse-current capability.<\/p>\n <\/details>\n\n <details>\n <summary>Where should a 1500V DC SPD be installed?<\/summary>\n <p>Common positions are inside the PV combiner box and close to the inverter DC input. Final placement depends on cable length, lightning protection zones, grounding arrangement and equipment withstand level.<\/p>\n <\/details>\n\n <details>\n <summary>Can an AC SPD be used on the DC side of a PV system?<\/summary>\n <p>No. PV DC applications require DC-rated SPDs selected for photovoltaic voltage, DC arc behavior, disconnection arrangement and the correct Ucpv rating. An ordinary AC SPD should not be used as a substitute for a 1500V DC PV SPD.<\/p>\n <\/details>\n\n <details>\n <summary>Why must SPD connecting conductors be short?<\/summary>\n <p>Fast surge current flowing through long or looped conductors creates additional inductive voltage. Short, direct connections help keep the installed protection level closer to the tested SPD performance.<\/p>\n <\/details>\n\n <details>\n <summary>Does LEEYEE support OEM 1500V DC SPD orders?<\/summary>\n <p>Yes. OEM and project supply can include branding, labels, packaging and order-specific documentation, subject to technical confirmation and order requirements.<\/p>\n <\/details>\n <\/div>\n <\/div>\n<\/section>\n\n<section class=\"ly-section ly-cta\">\n <div class=\"ly-wrap\">\n <div class=\"ly-cta-grid\">\n <div>\n <h2>Need a Confirmed 1500V DC SPD Configuration?<\/h2>\n <p>\n Send the electrical and installation details below. LEEYEE can check whether the available Type 1+2 model fits your project or whether a different configuration is required.\n <\/p>\n\n <div class=\"ly-btns\">\n <a href=\"javascript:void(0);\" class=\"ly-btn ly-btn-white leeyee-site-popup-btn\" role=\"button\">Request Technical Selection<\/a>\n <a href=\"https:\/\/www.cnspd.com\/solar-pv-surge-protection\/\" target=\"_blank\" rel=\"noopener\" class=\"ly-btn ly-btn-outline\">View Solar PV Solution<\/a>\n <\/div>\n <\/div>\n\n <div class=\"ly-brief\">\n <strong>Please include:<\/strong>\n <ul>\n <li>Maximum PV open-circuit voltage<\/li>\n <li>Lowest expected site temperature<\/li>\n <li>Combiner box or inverter installation<\/li>\n <li>External lightning protection system<\/li>\n <li>Required type, remote contact and quantity<\/li>\n <\/ul>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<\/div>\n\n<script>\ndocument.addEventListener(\"DOMContentLoaded\", function () {\n document.querySelectorAll(\".leeyee-site-popup-btn\").forEach(function (btn) {\n btn.addEventListener(\"click\", function (e) {\n e.preventDefault();\n\n var trigger = document.querySelector(\".w-popup.ush_popup_1 .w-popup-trigger\");\n\n if (trigger) {\n trigger.click();\n } else {\n window.open(\"https:\/\/www.cnspd.com\/contact\/\", \"_blank\");\n }\n });\n });\n});\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\n \"@context\":\"https:\/\/schema.org\",\n \"@type\":\"CollectionPage\",\n \"@id\":\"https:\/\/www.cnspd.com\/dc-spd-up-to-1500v\/#webpage\",\n \"url\":\"https:\/\/www.cnspd.com\/dc-spd-up-to-1500v\/\",\n \"name\":\"1500V DC SPD for Solar PV Systems\",\n \"description\":\"Technical selection page for 1500V DC surge protective devices used in PV combiner boxes, DC distribution and inverter DC inputs.\",\n \"isPartOf\":{\"@type\":\"WebSite\",\"name\":\"LEEYEE\",\"url\":\"https:\/\/www.cnspd.com\/\"},\n \"about\":[\n {\"@type\":\"Thing\",\"name\":\"1500V DC surge protective device\"},\n {\"@type\":\"Thing\",\"name\":\"Photovoltaic surge protection\"},\n {\"@type\":\"Thing\",\"name\":\"PV combiner box protection\"},\n {\"@type\":\"Thing\",\"name\":\"Inverter DC input protection\"}\n ],\n \"mainEntity\":{\n \"@type\":\"Product\",\n \"name\":\"LY1-C40PV\/3(S) Type 1+2 1500V DC SPD\",\n \"model\":\"LY1-C40PV\/3(S)\",\n \"image\":\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/06\/IMG_2051-scaled.jpg\",\n \"url\":\"https:\/\/www.cnspd.com\/ly1-c40pv3s-1500vd4-pluggable-multi-pole-spd-product\/\",\n \"brand\":{\"@type\":\"Brand\",\"name\":\"LEEYEE\"},\n \"manufacturer\":{\"@type\":\"Organization\",\"name\":\"WENZHOU LEEYEE ELECTRIC CO., LTD.\",\"url\":\"https:\/\/www.cnspd.com\/\"},\n \"category\":\"Type 1+2 1500V DC Surge Protective Device\",\n \"description\":\"Pluggable multi-pole 1500V DC surge protective device for photovoltaic combiner boxes, DC distribution and inverter input protection.\",\n \"additionalProperty\":[\n {\"@type\":\"PropertyValue\",\"name\":\"Maximum continuous operating voltage Ucpv\",\"value\":\"1500V DC\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Protection class\",\"value\":\"Type 1+2 \/ Class I+II\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Impulse discharge current Iimp\",\"value\":\"6.25kA (10\/350 \u03bcs)\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Nominal discharge current In\",\"value\":\"20kA (8\/20 \u03bcs)\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Maximum discharge current Imax\",\"value\":\"40kA (8\/20 \u03bcs)\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Voltage protection level Up\",\"value\":\"5.6kV\"},\n {\"@type\":\"PropertyValue\",\"name\":\"Mounting\",\"value\":\"35mm DIN rail\"}\n ]\n },\n \"breadcrumb\":{\n \"@type\":\"BreadcrumbList\",\n \"itemListElement\":[\n {\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.cnspd.com\/\"},\n {\"@type\":\"ListItem\",\"position\":2,\"name\":\"Surge Protective Device\",\"item\":\"https:\/\/www.cnspd.com\/shop\/surge-protective-device\/\"},\n {\"@type\":\"ListItem\",\"position\":3,\"name\":\"DC Surge Protective Device\",\"item\":\"https:\/\/www.cnspd.com\/shop\/dc-surge-protective-device\/\"},\n {\"@type\":\"ListItem\",\"position\":4,\"name\":\"1500V DC SPD\",\"item\":\"https:\/\/www.cnspd.com\/dc-spd-up-to-1500v\/\"}\n ]\n }\n}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\n \"@context\":\"https:\/\/schema.org\",\n \"@type\":\"FAQPage\",\n \"mainEntity\":[\n {\n \"@type\":\"Question\",\n \"name\":\"What is a 1500V DC SPD used for?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"A 1500V DC SPD is used on the DC side of high-voltage photovoltaic systems to limit transient overvoltage and divert surge current. Typical locations include string combiner boxes, DC distribution cabinets and inverter DC inputs.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Can a 1000V DC SPD be used in a 1500V PV system?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"No. The SPD maximum continuous operating voltage must be suitable for the actual maximum array voltage. A lower-rated SPD may be overstressed during normal operation.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Is 1500V the nominal system voltage or Ucpv?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"Product markings and datasheets must be checked carefully. For PV SPD selection, Ucpv is the important continuous operating-voltage rating and should be compared with the calculated maximum open-circuit voltage of the array.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"When is a Type 1+2 1500V DC SPD required?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"Type 1+2 is commonly selected where lightning-current components may enter the DC system, where an external lightning protection system is present, or where the project requires 10\/350 microsecond impulse-current capability.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Where should a 1500V DC SPD be installed?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"Common positions are inside the PV combiner box and close to the inverter DC input. Final placement depends on cable length, lightning protection zones, grounding arrangement and equipment withstand level.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Can an AC SPD be used on the DC side of a PV system?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"No. PV DC applications require DC-rated SPDs selected for photovoltaic voltage, DC arc behavior, disconnection arrangement and the correct Ucpv rating. An ordinary AC SPD should not be used as a substitute for a 1500V DC PV SPD.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Why must SPD connecting conductors be short?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"Fast surge current flowing through long or looped conductors creates additional inductive voltage. Short, direct connections help keep the installed protection level closer to the tested SPD performance.\"\n }\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Does LEEYEE support OEM 1500V DC SPD orders?\",\n \"acceptedAnswer\":{\n \"@type\":\"Answer\",\n \"text\":\"Yes. OEM and project supply can include branding, labels, packaging and order-specific documentation, subject to technical confirmation and order requirements.\"\n }\n }\n ]\n}\n<\/script>\n\n<\/body>\n<\/html><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"1500V DC SPD for Solar PV Systems | Type 1+2 Selection | LEEYEE Home \/ Surge Protective Device \/ DC SPD \/ 1500V DC SPD 1500V DC Surge Protection 1500V DC SPD for Solar PV Systems A 1500V DC SPD protects high-voltage PV strings, combiner boxes and inverter DC inputs against transient overvoltage. Correct selection...","protected":false},"author":18,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-29402","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>1500V DC SPD for Solar PV Systems | Type 1+2 Selection | LEEYEE<\/title>\n<meta name=\"description\" content=\"Choose a 1500V DC SPD for PV combiner boxes and inverter DC inputs. 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