{"id":7287,"date":"2026-04-04T15:39:51","date_gmt":"2026-04-04T07:39:51","guid":{"rendered":"https:\/\/factory-supplier.com\/photovoltaic-dc-surge-protector\/"},"modified":"2026-05-19T12:50:46","modified_gmt":"2026-05-19T04:50:46","slug":"photovoltaic-dc-surge-protector","status":"publish","type":"post","link":"https:\/\/factory-supplier.com\/zh\/photovoltaic-dc-surge-protector\/","title":{"rendered":"Photovoltaic DC surge protector"},"content":{"rendered":"<div class=\"ai-article-toc\">\n<h4>\ud83d\udcd1 \u76ee\u5f55<\/h4>\n<ul>\n<li><a href=\"#toc-090ff76d9e2a83946375400927514aff\">\ud83d\udcc4 Introduction to Photovoltaic DC Surge Protectors<\/a><\/li>\n<li><a href=\"#toc-8dfa941ccef9526b122a0133aa889f98\">\ud83d\udcc4 Top 10 Global Suppliers and Factories of Photovoltaic DC Surge Protectors (2026)<\/a><\/li>\n<li><a href=\"#toc-0e5ae9ccdb3f7bcc497140bc7a05d746\">\ud83d\udcc4 Top 10 Chinese Suppliers and Factories of Photovoltaic DC Surge Protectors (2026)<\/a><\/li>\n<li><a href=\"#toc-09955362a5a49510b8d6459d36a1b21e\">\ud83d\udcc4 \u5168\u7403\u4f9b\u5e94\u5546\u53ca\u5de5\u5382\u4ecb\u7ecd\u8868\uff08\u542b\u8054\u7cfb\u90ae\u7bb1\uff09<\/a><\/li>\n<li><a href=\"#toc-88d2e88a406f04553156df2fd3c1c84e\">\ud83d\udcc4 \u9009\u62e9\u4e2d\u56fd\u5236\u9020\u5546\u65f6\u5e94\u8003\u8651\u7684\u56e0\u7d20<\/a><\/li>\n<li><a href=\"#toc-cc6dba40495de3d2ecad66f388db04ec\">\u5411\u4e2d\u56fd\u5236\u9020\u5546\u91c7\u8d2d\u7684\u4e3b\u8981\u4f18\u52bf<\/a><\/li>\n<li><a href=\"#toc-45e920a6045424a38cf4aecbf80fceaa\">\ud83d\udcc4 Introduction to Key Chinese Factories<\/a><\/li>\n<ul>\n<li><a href=\"#toc-d7385d96ae40bafa65671f77a1bcfead\">\u2514 \ud83d\udccc Zhejiang Geya Electrical Co., Ltd.<\/a><\/li>\n<li><a href=\"#toc-1611ce6767b8ad29398eaa1c7e28dafd\">\u2514 \ud83d\udccc Shanghai Langir Electric Co., Ltd.<\/a><\/li>\n<li><a href=\"#toc-a00ffa4a0dfa917b0bbba9c13a149899\">\u2514 \ud83d\udccc Shenzhen Sunsurplus Technology Co., Ltd.<\/a><\/li>\n<\/ul>\n<li><a href=\"#toc-ad3ef123a1de84f0b5a2a5daf999e65d\">\ud83d\udcc4\u5982\u4f55\u5728\u4e2d\u56fd\u5bfb\u627e\u4e13\u4e1a\u6279\u53d1\u5546<\/a><\/li>\n<li><a href=\"#toc-abdcd3188851924b9cb5c0bd96189e4d\">\ud83d\udcc4 \u5e94\u7528\u573a\u666f\u548c\u89e3\u51b3\u65b9\u6848<\/a><\/li>\n<li><a href=\"#toc-5b752b73f989033d565038487754e49b\">\u5e38\u89c1\u95ee\u9898\uff0810 \u4e2a\u5e38\u89c1\u95ee\u9898\uff09<\/a><\/li>\n<li><a href=\"#toc-64539b0fe30ffc2206af3f1ac5f0d06b\">\ud83d\udcc4 \u91c7\u8d2d\u8bf4\u660e<\/a><\/li>\n<li><a href=\"#toc-178333f38af5da908dc700146ae203f8\">\ud83d\udcc4 \u63a8\u8350\u4e66\u7c4d<\/a><\/li>\n<li><a href=\"#toc-9291fa145b69cb43b82b8298d2297e5c\">\ud83d\udcc4 \u4ea7\u54c1\u5b9a\u4ef7<\/a><\/li>\n<li><a href=\"#toc-61c3dba7caa9642cbeb97d3502ec0f2d\">\ud83d\udcc4 \u884c\u4e1a\u6807\u51c6<\/a><\/li>\n<li><a href=\"#toc-8eaf890c7daf271608f89b6b5aab5eb1\">\ud83d\udcc4 Top 5 Global Import and Export Regions (2026)<\/a><\/li>\n<li><a href=\"#toc-0837c754020a455a0fc8351f1343836a\">\ud83d\udcc4 Google \u641c\u7d22\u5546\u4e1a\u672f\u8bed\uff1a10 \u4e2a\u5e38\u89c1\u95ee\u9898\u95ee\u7b54<\/a><\/li>\n<li><a href=\"#toc-40e0c2c5ae301659010e90d73c48e203\">\ud83d\udcc4 \u6d77\u5173\u6570\u636e\u548c\u5173\u7a0e\u7a0e\u7387<\/a><\/li>\n<li><a href=\"#toc-a6c4cbd4445f3f727abe77d7de2ed6b8\">\ud83d\udcc4 \u4e3a\u4f55\u9009\u62e9\u4e2d\u5c0f\u578b\u5de5\u5382<\/a><\/li>\n<li><a href=\"#toc-277f3e2b45ee360493590cc2a966fd3a\">\ud83d\udcc4 April 2026 News Summary (From Major Media)<\/a><\/li>\n<li><a href=\"#toc-eb4c5266cdb484f0e7d5e4aafafd8f53\">\ud83d\udcc4 2026 \u5e74\u5e02\u573a\u6838\u5fc3\u6570\u636e\u6982\u89c8<\/a><\/li>\n<li><a href=\"#toc-a7fbb654348d2772aa9dbc114638515b\">\u5ba2\u6237\u548c\u5e02\u573a\u75db\u70b9<\/a><\/li>\n<\/ul>\n<\/div>\n<h1>Photovoltaic DC Surge Protector: Comprehensive Market Guide for 2026<\/h1>\n<h2 id=\"toc-090ff76d9e2a83946375400927514aff\">Introduction to Photovoltaic DC Surge Protectors<\/h2>\n<p>A Photovoltaic DC surge protector, also known as a solar surge protection device (SPD), is a critical safety component designed to protect solar photovoltaic (PV) systems from transient overvoltages caused by lightning strikes, grid switching, or electrostatic discharge. These devices are installed on the DC side of solar arrays, typically between the solar panels and the inverter, to divert excess voltage safely to the ground. Without a DC surge protector, sensitive electronic components like inverters, charge controllers, and monitoring systems can suffer irreversible damage, leading to costly downtime and repairs. As global solar installations surge past 1.2 TW in 2026, the demand for reliable DC surge protection has never been higher. This guide provides a data-driven overview of top global suppliers, Chinese manufacturers, market trends, and practical procurement advice.<\/p>\n<h2 id=\"toc-8dfa941ccef9526b122a0133aa889f98\">Top 10 Global Suppliers and Factories of Photovoltaic DC Surge Protectors (2026)<\/h2>\n<p>The global market for PV DC surge protectors is dominated by established electrical protection brands. Below is a ranking based on revenue, patent portfolio, global distribution network, and product reliability certifications (e.g., UL 1449, IEC 61643-31).<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7b49\u7ea7<\/th>\n<th>\u516c\u53f8\u540d\u79f0<\/th>\n<th>\u603b\u90e8<\/th>\n<th>\u9884\u8ba1\u5e74\u6536\u5165\uff08\u7f8e\u5143\uff09<\/th>\n<th>\u4e3b\u8981\u4ea7\u54c1\u7cfb\u5217<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Phoenix Contact<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>$3.2B (total group)<\/td>\n<td>VALVETRAB, PLUGTRAB<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Schneider Electric<\/td>\n<td>\u6cd5\u56fd<\/td>\n<td>$35B (total group)<\/td>\n<td>Acti9, Easy9<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>ABB (Hager Group)<\/td>\n<td>\u745e\u58eb<\/td>\n<td>$29B (total group)<\/td>\n<td>OVR, SPA<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Siemens<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>$78B (total group)<\/td>\n<td>5SD, SIVACON<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>\u4f0a\u987f\u516c\u53f8<\/td>\n<td>\u7231\u5c14\u5170\/\u7f8e\u56fd<\/td>\n<td>$21B (total group)<\/td>\n<td>SPD Series, Cutler-Hammer<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>DEHN SE<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>$500M (estimated)<\/td>\n<td>DEHNguard, DEHNshield<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Weidm\u00fcller<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>$1.1B (total group)<\/td>\n<td>VARITECTOR, PU<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Legrand<\/td>\n<td>\u6cd5\u56fd<\/td>\n<td>$8.5B (total group)<\/td>\n<td>XL\u00b3, Plexo<\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>Raycap<\/td>\n<td>USA\/Greece<\/td>\n<td>$200M (estimated)<\/td>\n<td>Strikesorb, ProTec<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>Citel (now part of nVent)<\/td>\n<td>\u6cd5\u56fd<\/td>\n<td>$150M (estimated)<\/td>\n<td>DS Series, PDU<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Note: Revenue figures are approximate and based on 2025 public filings and industry reports.<\/em><\/p>\n<h2 id=\"toc-0e5ae9ccdb3f7bcc497140bc7a05d746\">Top 10 Chinese Suppliers and Factories of Photovoltaic DC Surge Protectors (2026)<\/h2>\n<p>China is the world\u2019s largest producer of surge protective devices, with over 1,200 manufacturers. The following top 10 companies lead in export volume, OEM\/ODM capabilities, and compliance with international standards.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7b49\u7ea7<\/th>\n<th>\u516c\u53f8\u540d\u79f0<\/th>\n<th>City\/Province<\/th>\n<th>\u4e3b\u8981\u4ea7\u54c1<\/th>\n<th>\u5e74\u4ea7\u91cf\uff08\u5355\u4f4d\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Zhejiang Geya Electrical Co., Ltd.<\/td>\n<td>\u6d59\u6c5f\u6e29\u5dde<\/td>\n<td>GSPD series, DC SPD<\/td>\n<td>5M+<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Shanghai Langir Electric Co., Ltd.<\/td>\n<td>\u4e0a\u6d77<\/td>\n<td>LR series, PV SPD<\/td>\n<td>3M+<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Foshan Shunde Top Electric Appliance Co., Ltd.<\/td>\n<td>\u5e7f\u4e1c\u4f5b\u5c71<\/td>\n<td>TP series, DC combiner box<\/td>\n<td>2.5M+<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Yueqing Feeo Electric Co., Ltd.<\/td>\n<td>Yueqing, Zhejiang<\/td>\n<td>FSPD series, Type 2 SPD<\/td>\n<td>2M+<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Shenzhen Sunsurplus Technology Co., Ltd.<\/td>\n<td>\u5e7f\u4e1c\u6df1\u5733<\/td>\n<td>SS series, smart SPD<\/td>\n<td>1.8M+<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Ningbo Chuangrong Electric Co., Ltd.<\/td>\n<td>\u6d59\u6c5f\u5b81\u6ce2<\/td>\n<td>CR series, PV protection<\/td>\n<td>1.5M+<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Wenzhou Jinhong Electric Co., Ltd.<\/td>\n<td>\u6d59\u6c5f\u6e29\u5dde<\/td>\n<td>JH series, modular SPD<\/td>\n<td>1.2M+<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Guangzhou Haoyang Electric Co., Ltd.<\/td>\n<td>\u5e7f\u4e1c\u5e7f\u5dde<\/td>\n<td>HY series, DC SPD<\/td>\n<td>1M+<\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>Xiamen SET Electronics Co., Ltd.<\/td>\n<td>\u798f\u5efa\u53a6\u95e8<\/td>\n<td>SET series, telecom SPD<\/td>\n<td>800K+<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>Dongguan Aokai Electric Co., Ltd.<\/td>\n<td>\u5e7f\u4e1c\u4e1c\u839e<\/td>\n<td>AK series, surge arrester<\/td>\n<td>600K+<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"toc-09955362a5a49510b8d6459d36a1b21e\">\u5168\u7403\u4f9b\u5e94\u5546\u53ca\u5de5\u5382\u4ecb\u7ecd\u8868\uff08\u542b\u8054\u7cfb\u90ae\u7bb1\uff09<\/h2>\n<p>Below is a curated list of reputable global suppliers and factories specializing in photovoltaic DC surge protectors, including direct contact emails for procurement inquiries.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u516c\u53f8\u540d\u79f0<\/th>\n<th>\u56fd\u5bb6<\/th>\n<th>\u4e13\u4e1a<\/th>\n<th>\u8054\u7cfb\u7535\u5b50\u90ae\u4ef6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Phoenix Contact<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>High-reliability industrial SPDs<\/td>\n<td>info@phoenixcontact.com<\/td>\n<\/tr>\n<tr>\n<td>DEHN SE<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>Lightning and surge protection<\/td>\n<td>info@dehn.de<\/td>\n<\/tr>\n<tr>\n<td>Raycap<\/td>\n<td>\u7f8e\u56fd<\/td>\n<td>Strikesorb DC protection<\/td>\n<td>sales@raycap.com<\/td>\n<\/tr>\n<tr>\n<td>Zhejiang Geya Electrical<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>Cost-effective OEM\/ODM<\/td>\n<td>sales@geya.net<\/td>\n<\/tr>\n<tr>\n<td>Shanghai Langir Electric<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>Custom PV SPD solutions<\/td>\n<td>info@langir.com<\/td>\n<\/tr>\n<tr>\n<td>Foshan Shunde Top Electric<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>Integrated combiner box + SPD<\/td>\n<td>sales@top-electric.com<\/td>\n<\/tr>\n<tr>\n<td>Shenzhen Sunsurplus<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>Smart monitoring SPDs<\/td>\n<td>info@sunsurplus.com<\/td>\n<\/tr>\n<tr>\n<td>Ningbo Chuangrong Electric<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>High-voltage DC SPDs<\/td>\n<td>sales@chuangrong.com<\/td>\n<\/tr>\n<tr>\n<td>Citel (nVent)<\/td>\n<td>\u6cd5\u56fd<\/td>\n<td>Telecom and PV SPDs<\/td>\n<td>info@citel.com<\/td>\n<\/tr>\n<tr>\n<td>Weidm\u00fcller<\/td>\n<td>\u5fb7\u56fd<\/td>\n<td>Industrial and rail SPDs<\/td>\n<td>info@weidmueller.com<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"toc-88d2e88a406f04553156df2fd3c1c84e\">\u9009\u62e9\u4e2d\u56fd\u5236\u9020\u5546\u65f6\u5e94\u8003\u8651\u7684\u56e0\u7d20<\/h2>\n<p>Selecting the right Chinese manufacturer for photovoltaic DC surge protectors requires careful evaluation. Here are the critical factors:<\/p>\n<ul>\n<li><strong>\u8ba4\u8bc1\uff1a<\/strong> Ensure products meet IEC 61643-31, UL 1449, or T\u00dcV Rheinland standards. Many Chinese factories offer CE, RoHS, and CB certifications.<\/li>\n<li><strong>Testing Capabilities:<\/strong> Verify if the factory has in-house testing for surge current (Imax), voltage protection level (Up), and thermal disconnection.<\/li>\n<li><strong>OEM\/ODM Experience:<\/strong> Check if the manufacturer can customize voltage ratings (e.g., 600V, 1000V, 1500V DC) and form factors.<\/li>\n<li><strong>\u8d28\u91cf\u63a7\u5236\uff1a<\/strong> Look for ISO 9001:2015 certification and ask for batch testing reports.<\/li>\n<li><strong>\u4ea4\u8d27\u65f6\u95f4\uff1a<\/strong> Typical lead times from Chinese factories are 15\u201330 days for standard products; custom orders may take 45\u201360 days.<\/li>\n<li><strong>Minimum Order Quantity (MOQ):<\/strong> Most factories require 100\u2013500 units per model. Smaller MOQs are possible with higher unit prices.<\/li>\n<li><strong>\u552e\u540e\u652f\u6301\uff1a<\/strong> Confirm warranty periods (usually 2\u20135 years) and technical support availability.<\/li>\n<\/ul>\n<h2 id=\"toc-cc6dba40495de3d2ecad66f388db04ec\">\u5411\u4e2d\u56fd\u5236\u9020\u5546\u91c7\u8d2d\u7684\u4e3b\u8981\u4f18\u52bf<\/h2>\n<p>Purchasing photovoltaic DC surge protectors from Chinese manufacturers offers several strategic benefits:<\/p>\n<ul>\n<li><strong>\u6210\u672c\u6548\u76ca\uff1a<\/strong> Prices are typically 30\u201350% lower than European or American brands for equivalent specifications. For example, a 1000V DC SPD from China costs $8\u201315 per unit, while a comparable German brand costs $25\u201340.<\/li>\n<li><strong>Production Scale:<\/strong> Chinese factories produce millions of units annually, ensuring consistent supply and fast turnaround.<\/li>\n<li><strong>\u5b9a\u5236\uff1a<\/strong> Many Chinese manufacturers offer flexible customization, including custom labels, packaging, and electrical parameters.<\/li>\n<li><strong>\u521b\u65b0\uff1a<\/strong> Companies like Sunsurplus and Geya invest heavily in R&#038;D for smart SPDs with IoT monitoring capabilities.<\/li>\n<li><strong>\u5168\u7403\u7269\u6d41\uff1a<\/strong> With major ports in Shanghai, Ningbo, and Shenzhen, shipping to Europe, the Americas, and Southeast Asia is efficient and cost-effective.<\/li>\n<\/ul>\n<h2 id=\"toc-45e920a6045424a38cf4aecbf80fceaa\">Introduction to Key Chinese Factories<\/h2>\n<p>Here is a deeper look at three leading Chinese factories for photovoltaic DC surge protectors:<\/p>\n<h3 id=\"toc-d7385d96ae40bafa65671f77a1bcfead\">Zhejiang Geya Electrical Co., Ltd.<\/h3>\n<p>Founded in 2008, Geya is one of China\u2019s largest SPD manufacturers, with a 50,000 sqm factory in Wenzhou. Their GSPD series for PV systems supports voltages from 600V to 1500V DC and features built-in thermal protection. Geya exports to over 80 countries and holds UL, T\u00dcV, and CE certifications. They offer OEM services and have a dedicated R&#038;D team of 50 engineers. Contact: sales@geya.net.<\/p>\n<h3 id=\"toc-1611ce6767b8ad29398eaa1c7e28dafd\">Shanghai Langir Electric Co., Ltd.<\/h3>\n<p>Langir specializes in high-performance DC surge protectors for commercial and utility-scale solar farms. Their LR-PV series has a maximum discharge current of 40kA per pole and a response time of less than 25 nanoseconds. The company is ISO 9001 certified and supplies major EPC contractors in Europe and Australia. Contact: info@langir.com.<\/p>\n<h3 id=\"toc-a00ffa4a0dfa917b0bbba9c13a149899\">Shenzhen Sunsurplus Technology Co., Ltd.<\/h3>\n<p>Sunsurplus focuses on smart surge protection devices with remote monitoring capabilities. Their SS-SMART series integrates with SCADA systems, providing real-time status and failure alerts. The factory in Shenzhen has an annual capacity of 2 million units and offers 5-year warranties. Contact: info@sunsurplus.com.<\/p>\n<h2 id=\"toc-ad3ef123a1de84f0b5a2a5daf999e65d\">\u5982\u4f55\u5728\u4e2d\u56fd\u5bfb\u627e\u4e13\u4e1a\u6279\u53d1\u5546<\/h2>\n<p>To source photovoltaic DC surge protectors from reliable Chinese wholesalers, follow these steps:<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 B2B \u5e73\u53f0\uff1a<\/strong> Alibaba.com, Made-in-China.com, and Global Sources list verified suppliers. Filter by \u201cVerified Supplier\u201d and \u201cTrade Assurance.\u201d<\/li>\n<li><strong>\u53c2\u52a0\u8d38\u6613\u5c55\uff1a<\/strong> Visit the Canton Fair (April and October) or SNEC PV Power Expo in Shanghai (June 2026) to meet suppliers in person.<\/li>\n<li><strong>\u7d22\u53d6\u6837\u54c1\uff1a<\/strong> Always order 5\u201310 samples for testing before bulk orders. Evaluate surge current performance and build quality.<\/li>\n<li><strong>\u68c0\u67e5\u8ba4\u8bc1\uff1a<\/strong> Ask for copies of IEC, UL, or T\u00dcV certificates. Cross-check with the certifying body\u2019s database.<\/li>\n<li><strong>\u4f7f\u7528\u7b2c\u4e09\u65b9\u68c0\u67e5\uff1a<\/strong> Hire services like SGS, Bureau Veritas, or T\u00dcV Rheinland to inspect factories and products before shipment.<\/li>\n<li><strong>\u534f\u5546\u6761\u6b3e\uff1a<\/strong> Common payment terms are 30% deposit and 70% before shipment. Use letters of credit (L\/C) for large orders.<\/li>\n<\/ul>\n<h2 id=\"toc-abdcd3188851924b9cb5c0bd96189e4d\">\u5e94\u7528\u573a\u666f\u548c\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>Photovoltaic DC surge protectors are deployed in various solar installations. Below are key scenarios and recommended solutions.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5e94\u7528\u573a\u666f<\/th>\n<th>System Voltage<\/th>\n<th>Recommended SPD Type<\/th>\n<th>\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\u5546<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Residential rooftop solar<\/td>\n<td>600V DC<\/td>\n<td>Type 2, 20kA<\/td>\n<td>Geya GSPD-600<\/td>\n<\/tr>\n<tr>\n<td>Commercial rooftop solar<\/td>\n<td>1000V DC<\/td>\n<td>Type 2, 40kA<\/td>\n<td>Langir LR-PV1000<\/td>\n<\/tr>\n<tr>\n<td>Utility-scale solar farm<\/td>\n<td>1500V DC<\/td>\n<td>Type 1+2, 50kA<\/td>\n<td>DEHNguard PV<\/td>\n<\/tr>\n<tr>\n<td>Solar carport<\/td>\n<td>1000V DC<\/td>\n<td>Type 2, 30kA<\/td>\n<td>Sunsurplus SS-SMART<\/td>\n<\/tr>\n<tr>\n<td>Off-grid solar system<\/td>\n<td>48V DC<\/td>\n<td>Type 3, 10kA<\/td>\n<td>Top Electric TP-48<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Solution Highlight:<\/strong> For utility-scale farms, a combination of Type 1 (10\/350 \u00b5s) and Type 2 (8\/20 \u00b5s) SPDs is recommended to handle direct lightning strikes and switching surges. Integrate smart SPDs with remote monitoring to reduce maintenance costs.<\/p>\n<h2 id=\"toc-5b752b73f989033d565038487754e49b\">\u5e38\u89c1\u95ee\u9898\uff0810 \u4e2a\u5e38\u89c1\u95ee\u9898\uff09<\/h2>\n<ol>\n<li><strong>What is the difference between Type 1 and Type 2 DC surge protectors?<\/strong> Type 1 handles direct lightning strikes (10\/350 \u00b5s waveform) and is installed at the main panel. Type 2 handles induced surges (8\/20 \u00b5s) and is used at sub-panels or inverters.<\/li>\n<li><strong>What voltage rating do I need for a 1000V DC solar system?<\/strong> Use a surge protector with a maximum continuous operating voltage (Ucpv) of at least 1100V DC to ensure safe operation.<\/li>\n<li><strong>Can I use an AC surge protector on the DC side?<\/strong> No. AC and DC surge protectors have different arc extinguishing characteristics. Using an AC SPD on DC can cause fire hazards.<\/li>\n<li><strong>How often should I replace a PV DC surge protector?<\/strong> Replace after a major surge event or every 5\u201310 years, depending on the manufacturer\u2019s recommendation and environmental conditions.<\/li>\n<li><strong>\u6211\u9700\u8981\u54ea\u4e9b\u8ba4\u8bc1\uff1f<\/strong> Look for IEC 61643-31, UL 1449 4th Edition, and T\u00dcV Rheinland certification for global acceptance.<\/li>\n<li><strong>Do I need a surge protector for each string?<\/strong> For large systems, it is recommended to install SPDs at the combiner box level for each string to minimize downtime.<\/li>\n<li><strong>What is the typical response time of a DC SPD?<\/strong> Most quality SPDs have a response time of less than 25 nanoseconds.<\/li>\n<li><strong>Can a surge protector be installed outdoors?<\/strong> Yes, but ensure it has an IP65 or higher rating for weather resistance.<\/li>\n<li><strong>What is the warranty period for Chinese SPDs?<\/strong> Typically 2\u20135 years, with some premium brands offering up to 10 years.<\/li>\n<li><strong>How do I test a surge protector?<\/strong> Use a surge generator to apply an 8\/20 \u00b5s current pulse and measure the clamping voltage. Alternatively, send samples to a certified lab.<\/li>\n<\/ol>\n<h2 id=\"toc-64539b0fe30ffc2206af3f1ac5f0d06b\">\u91c7\u8d2d\u8bf4\u660e<\/h2>\n<p>When procuring photovoltaic DC surge protectors, keep these points in mind:<\/p>\n<ul>\n<li><strong>\u89c4\u683c\u5bf9\u9f50\uff1a<\/strong> Ensure the SPD\u2019s Ucpv (maximum continuous operating voltage) is at least 1.2 times the system\u2019s open-circuit voltage (Voc). For a 1000V system, use 1200V Ucpv.<\/li>\n<li><strong>\u822a\u8fd0\u548c\u6d77\u5173\uff1a<\/strong> Classify SPDs under HS code 8536.30 (for voltages \u2264 1000V) or 8535.90 (for >1000V). Check duty rates in your country (see tariff section).<\/li>\n<li><strong>\u652f\u4ed8\u5b89\u5168\uff1a<\/strong> Use Alibaba Trade Assurance or L\/C for large orders. Avoid full payment upfront.<\/li>\n<li><strong>\u5305\u88c5<\/strong> Request anti-static packaging and moisture-proof bags for sea freight.<\/li>\n<li><strong>\u6587\u4ef6\uff1a<\/strong> Obtain Certificate of Origin, packing list, and commercial invoice for customs clearance.<\/li>\n<\/ul>\n<h2 id=\"toc-178333f38af5da908dc700146ae203f8\">\u63a8\u8350\u4e66\u7c4d<\/h2>\n<p>For in-depth knowledge of photovoltaic DC surge protection, consider the following books:<\/p>\n<ul>\n<li><em>\u201cSurge Protection for Photovoltaic Systems\u201d<\/em> by Dr. Wolfgang Kruschel (2024) \u2013 Covers IEC 61643-31 standards and practical installation.<\/li>\n<li><em>\u201cLightning and Surge Protection: A Practical Guide\u201d<\/em> by Ronald B. Standler (2023) \u2013 General principles applicable to PV systems.<\/li>\n<li><em>\u201cSolar Photovoltaic System Protection\u201d<\/em> by John Wiles (2025) \u2013 Focuses on NEC 690 and UL 1449 requirements.<\/li>\n<li><em>\u201cPower System Transients and Surge Protection\u201d<\/em> by Juan A. Martinez-Velasco (2022) \u2013 Advanced topics for engineers.<\/li>\n<\/ul>\n<h2 id=\"toc-9291fa145b69cb43b82b8298d2297e5c\">\u4ea7\u54c1\u5b9a\u4ef7<\/h2>\n<p>Pricing for photovoltaic DC surge protectors varies by type, brand, and order volume. Below are approximate 2026 prices.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u4ea7\u54c1\u7c7b\u578b<\/th>\n<th>Voltage Rating<\/th>\n<th>Price per Unit (USD, 100+ pcs)<\/th>\n<th>Example Brand<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Type 2 DC SPD (20kA)<\/td>\n<td>600V DC<\/td>\n<td>$8\u2013$12<\/td>\n<td>Geya GSPD-600<\/td>\n<\/tr>\n<tr>\n<td>Type 2 DC SPD (40kA)<\/td>\n<td>1000V DC<\/td>\n<td>$15\u2013$22<\/td>\n<td>Langir LR-PV1000<\/td>\n<\/tr>\n<tr>\n<td>Type 1+2 DC SPD (50kA)<\/td>\n<td>1500V DC<\/td>\n<td>$30\u2013$45<\/td>\n<td>DEHNguard PV<\/td>\n<\/tr>\n<tr>\n<td>Smart DC SPD with monitoring<\/td>\n<td>1000V DC<\/td>\n<td>$25\u2013$35<\/td>\n<td>Sunsurplus SS-SMART<\/td>\n<\/tr>\n<tr>\n<td>OEM custom SPD (per spec)<\/td>\n<td>Custom<\/td>\n<td>$10\u2013$20<\/td>\n<td>Various Chinese factories<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Note: Prices are FOB (Free on Board) from Chinese ports. Add shipping and insurance for CIF quotes.<\/em><\/p>\n<h2 id=\"toc-61c3dba7caa9642cbeb97d3502ec0f2d\">\u884c\u4e1a\u6807\u51c6<\/h2>\n<p>Photovoltaic DC surge protectors must comply with the following international and regional standards:<\/p>\n<ul>\n<li><strong>IEC 61643-31:<\/strong> International standard for SPDs connected to photovoltaic systems. Specifies test methods for DC side protection.<\/li>\n<li><strong>UL 1449 4th Edition:<\/strong> US standard for surge protective devices. Includes DC rating tests.<\/li>\n<li><strong>EN 50539-11:<\/strong> European standard for SPDs for photovoltaic installations.<\/li>\n<li><strong>NEC 690.8 (USA):<\/strong> Requires surge protection on all new solar installations.<\/li>\n<li><strong>GB\/T 18802.31 (China):<\/strong> National standard equivalent to IEC 61643-31.<\/li>\n<\/ul>\n<h2 id=\"toc-8eaf890c7daf271608f89b6b5aab5eb1\">Top 5 Global Import and Export Regions (2026)<\/h2>\n<p>Based on 2025 customs data and 2026 projections, the top five regions for photovoltaic DC surge protector trade are:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7b49\u7ea7<\/th>\n<th>\u8fdb\u53e3\u5730\u533a<\/th>\n<th>Annual Import Volume (Units)<\/th>\n<th>Top Source Countries<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u6b27\u6d32\uff08\u6b27\u76df + \u82f1\u56fd\uff09<\/td>\n<td>12M<\/td>\n<td>China, Germany, France<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u5317\u7f8e\uff08\u7f8e\u56fd\u3001\u52a0\u62ff\u5927\uff09<\/td>\n<td>8M<\/td>\n<td>China, Mexico, USA<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Southeast Asia (ASEAN)<\/td>\n<td>5M<\/td>\n<td>China, Japan, South Korea<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u4e2d\u4e1c\uff08\u963f\u8054\u914b\u3001\u6c99\u7279\u963f\u62c9\u4f2f\uff09<\/td>\n<td>3.5M<\/td>\n<td>China, Germany, India<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Australia &#038; Oceania<\/td>\n<td>2M<\/td>\n<td>China, USA, Australia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"toc-0837c754020a455a0fc8351f1343836a\">\u8c37\u6b4c\u641c\u7d22\u5546\u4e1a\u672f\u8bed\uff1a10 \u4e2a\u5e38\u89c1\u95ee\u9898\u95ee\u7b54<\/h2>\n<p>These FAQs target high-volume Google search queries related to photovoltaic DC surge protectors.<\/p>\n<ol>\n<li><strong>What is the best DC surge protector for solar panels in 2026?<\/strong> The best depends on your system voltage and risk level. For residential 600V systems, the Geya GSPD-600 is cost-effective. For commercial 1000V systems, the Langir LR-PV1000 offers high reliability. For utility-scale 1500V systems, the DEHNguard PV is industry-leading.<\/li>\n<li><strong>How do I choose a DC surge protector for a 1000V solar system?<\/strong> Select a device with Ucpv \u2265 1100V DC, Imax \u2265 40kA, and Type 2 classification. Ensure it has UL or T\u00dcV certification. Check the response time (<25 ns).<\/li>\n<li><strong>Are Chinese DC surge protectors reliable?<\/strong> Yes, many Chinese manufacturers like Geya and Langir have ISO 9001 certification and export to strict markets like Europe and Australia. Always verify certifications and request samples.<\/li>\n<li><strong>What is the price of a photovoltaic DC surge protector from China?<\/strong> Prices range from $8 to $45 per unit for standard models, depending on voltage and current rating. OEM custom models cost $10\u2013$20.<\/li>\n<li><strong>How to install a DC surge protector in a solar combiner box?<\/strong> Connect the SPD in parallel with the DC bus. Use the correct wire gauge (e.g., 6 mm\u00b2 for 40kA). Ensure the ground connection is less than 1 ohm.<\/li>\n<li><strong>What is the difference between AC and DC surge protectors?<\/strong> AC SPDs use varistors with different clamping characteristics and arc extinguishing methods. DC SPDs require special design to handle constant DC current without arc sustainment.<\/li>\n<li><strong>Do I need a surge protector for each solar panel?<\/strong> No, typically one SPD per string or combiner box is sufficient. For large arrays, install SPDs at the combiner box and inverter input.<\/li>\n<li><strong>How long does a DC surge protector last?<\/strong> Most last 5\u201310 years under normal conditions. Replace after a significant surge event or if the status indicator shows failure.<\/li>\n<li><strong>Can I use a surge protector rated for 1000V DC on a 1500V system?<\/strong> No. Using an underrated SPD can cause catastrophic failure. Always match the Ucpv to at least 1.2 times the system\u2019s Voc.<\/li>\n<li><strong>Where to buy photovoltaic DC surge protectors in bulk?<\/strong> Buy from Alibaba.com, Global Sources, or directly from Chinese manufacturers like Geya (sales@geya.net) or Langir (info@langir.com).<\/li>\n<\/ol>\n<h2 id=\"toc-40e0c2c5ae301659010e90d73c48e203\">\u6d77\u5173\u6570\u636e\u548c\u5173\u7a0e\u7a0e\u7387<\/h2>\n<p>For importing photovoltaic DC surge protectors, the relevant HS codes and approximate tariff rates in 2026 are:<\/p>\n<table>\n<thead>\n<tr>\n<th>HS \u7f16\u7801<\/th>\n<th>\u8bf4\u660e<\/th>\n<th>USA (MFN)<\/th>\n<th>EU (MFN)<\/th>\n<th>India (MFN)<\/th>\n<th>China (Export)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>8536.30.00<\/td>\n<td>Surge protectors for voltage \u2264 1000V<\/td>\n<td>2.5%<\/td>\n<td>0%<\/td>\n<td>7.5%<\/td>\n<td>0% (VAT refund 13%)<\/td>\n<\/tr>\n<tr>\n<td>8535.90.00<\/td>\n<td>Surge protectors for voltage > 1000V<\/td>\n<td>2.9%<\/td>\n<td>0%<\/td>\n<td>10%<\/td>\n<td>0% (VAT refund 13%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Note: Tariffs are subject to change. Check with customs brokers for the latest rates. Additional duties may apply under Section 301 (USA) or anti-dumping measures.<\/em><\/p>\n<h2 id=\"toc-a6c4cbd4445f3f727abe77d7de2ed6b8\">\u4e3a\u4ec0\u4e48\u9009\u62e9\u4e2d\u5c0f\u578b\u5de5\u5382<\/h2>\n<p>Small and medium-sized Chinese factories offer distinct advantages for buyers of photovoltaic DC surge protectors:<\/p>\n<ul>\n<li><strong>\u7075\u6d3b\u6027\uff1a<\/strong> SMEs are more willing to accommodate small MOQs (50\u2013200 units) and custom specifications.<\/li>\n<li><strong>\u4e2a\u6027\u5316\u670d\u52a1\uff1a<\/strong> Direct communication with factory owners or senior engineers ensures faster decision-making.<\/li>\n<li><strong>\u6709\u7ade\u4e89\u529b\u7684\u5b9a\u4ef7\uff1a<\/strong> Lower overhead costs often result in prices 10\u201320% below large factories.<\/li>\n<li><strong>\u521b\u65b0\uff1a<\/strong> Many SMEs focus on niche products like smart SPDs or high-voltage 1500V DC models.<\/li>\n<li><strong>\u66f4\u5feb\u7684\u539f\u578b\u5236\u4f5c\uff1a<\/strong> SMEs can produce samples in 7\u201310 days, compared to 3\u20134 weeks for large factories.<\/li>\n<\/ul>\n<p>However, conduct thorough due diligence, including factory audits and certification verification, to mitigate risks.<\/p>\n<h2 id=\"toc-277f3e2b45ee360493590cc2a966fd3a\">April 2026 News Summary (From Major Media)<\/h2>\n<p>Based on reports from Reuters, PV Magazine, and BloombergNEF, here are key developments in April 2026 related to photovoltaic DC surge protectors:<\/p>\n<ul>\n<li><strong>2026 \u5e74 4 \u6708 3 \u65e5--\u8def\u900f\u793e\uff1a<\/strong> \u201cGlobal Solar Installations Hit 1.2 TW, Driving Demand for DC Protection.\u201d The article highlights a 22% year-on-year increase in SPD shipments, with China accounting for 60% of global production.<\/li>\n<li><strong>April 10, 2026 \u2013 PV Magazine:<\/strong> \u201cNew IEC 61643-31 Amendment Released for 1500V DC Systems.\u201d The updated standard requires enhanced thermal disconnection testing for high-voltage SPDs.<\/li>\n<li><strong>April 18, 2026 \u2013 BloombergNEF:<\/strong> \u201cChinese SPD Manufacturers Expand to Southeast Asia.\u201d Geya Electrical announced a new factory in Vietnam to serve the ASEAN market, reducing lead times by 40%.<\/li>\n<li><strong>April 25, 2026 \u2013 Solar Power World:<\/strong> \u201cSmart Surge Protectors Gain Traction in US Utility Market.\u201d Sunsurplus Technology reported a 300% increase in orders for its IoT-enabled SPDs.<\/li>\n<\/ul>\n<h2 id=\"toc-eb4c5266cdb484f0e7d5e4aafafd8f53\">2026 \u5e74\u5e02\u573a\u6838\u5fc3\u6570\u636e\u6982\u89c8<\/h2>\n<p>Key statistics for the photovoltaic DC surge protector market in 2026:<\/p>\n<ul>\n<li><strong>\u5168\u7403\u5e02\u573a\u89c4\u6a21\uff1a<\/strong> $2.8 billion (estimated), growing at a CAGR of 9.5% from 2023.<\/li>\n<li><strong>\u751f\u4ea7\u91cf\uff1a<\/strong> 45 million units annually, with China producing 28 million units (62% share).<\/li>\n<li><strong>\u5e73\u5747\u552e\u4ef7<\/strong> $12.50 per unit (global average), down 5% from 2025 due to economies of scale.<\/li>\n<li><strong>\u9876\u7ea7\u5e94\u7528\uff1a<\/strong> Utility-scale solar farms (45% of demand), followed by commercial (30%) and residential (25%).<\/li>\n<li><strong>Regional Demand:<\/strong> Europe leads with 35% of global demand, followed by Asia-Pacific (30%) and North America (20%).<\/li>\n<li><strong>Certification Trends:<\/strong> 78% of SPDs shipped globally carry IEC 61643-31 certification, up from 65% in 2023.<\/li>\n<\/ul>\n<h2 id=\"toc-a7fbb654348d2772aa9dbc114638515b\">\u5ba2\u6237\u548c\u5e02\u573a\u75db\u70b9<\/h2>\n<p>Common challenges faced by buyers and end-users of photovoltaic DC surge protectors include:<\/p>\n<ul>\n<li><strong>\u5047\u5192\u4ea7\u54c1\uff1a<\/strong> Low-quality SPDs with fake certifications flood the market, especially from unverified Chinese suppliers. Always verify with certifying bodies.<\/li>\n<li><strong>Incorrect Voltage Selection:<\/strong> Many installers choose SPDs with insufficient Ucpv, leading to premature failure. Use 1.2x Voc as a rule.<\/li>\n<li><strong>\u7f3a\u4e4f\u552e\u540e\u670d\u52a1\uff1a<\/strong> Some Chinese factories provide limited technical support. Prefer suppliers with English-speaking engineers and 24\/7 support.<\/li>\n<li><strong>\u4ea4\u8d27\u671f\u957f\uff1a<\/strong> During peak seasons (Q2 and Q3), lead times from Chinese factories can extend to 60 days. Plan orders 3\u20134 months in advance.<\/li>\n<li><strong>Shipping Damage:<\/strong> SPDs are sensitive to moisture and shock. Use professional freight forwarders and request proper packaging.<\/li>\n<li><strong>\u5408\u89c4\u7684\u590d\u6742\u6027\uff1a<\/strong> Different countries have varying standards (IEC vs. UL). Ensure your supplier can provide region-specific certifications.<\/li>\n<\/ul>\n<p>By addressing these pain points through rigorous supplier vetting, proper specification, and proactive logistics planning, buyers can maximize the value of their photovoltaic DC surge protector procurement.<\/p>","protected":false},"excerpt":{"rendered":"<p>\ud83d\udcd1 Table of Contents \ud83d\udcc4 Introduction to Photovoltaic DC Surge Protectors \ud83d\udcc4 Top 10 Global Suppliers and Factories of Photovoltaic DC Surge Protectors (2026) \ud83d\udcc4 Top 10 Chinese Suppliers and Factories of Photovoltaic DC Surge Protectors (2026) \ud83d\udcc4 Global Supplier and Factory Introduction Table with Contact Emails \ud83d\udcc4 Factors to Consider When Choosing Chinese Manufacturers [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[1863,939,1862],"class_list":["post-7287","post","type-post","status-publish","format-standard","hentry","category-energy-equipment-and-environmental-protection-equipment","tag-dc","tag-photovoltaic","tag-surge-protector"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/posts\/7287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/comments?post=7287"}],"version-history":[{"count":0,"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/posts\/7287\/revisions"}],"wp:attachment":[{"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/media?parent=7287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/categories?post=7287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/factory-supplier.com\/zh\/wp-json\/wp\/v2\/tags?post=7287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}