{"id":27089,"date":"2025-01-17T14:12:38","date_gmt":"2025-01-17T06:12:38","guid":{"rendered":"https:\/\/cnspd.com\/?p=27089"},"modified":"2026-04-13T13:04:50","modified_gmt":"2026-04-13T05:04:50","slug":"the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/th\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\/","title":{"rendered":"What is the difference between L-N surge protectors and L-PE surge protectors?"},"content":{"rendered":"<p>Below is a table showing the differences between L-N type surge protectors and L-PE type surge protectors, in descending order of importance:<\/p>\n<table style=\"height: 545px;\" width=\"1402\">\n<thead>\n<tr>\n<th>Difference<\/th>\n<th>L &#8211; N method surge protector<\/th>\n<th>L &#8211; PE connection method surge protector<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1. Installation position<\/td>\n<td>Installation between the phase and neutral lines<\/td>\n<td>Installation between the phase and earth lines<\/td>\n<\/tr>\n<tr>\n<td>2. Protecting object<\/td>\n<td>Protecting against voltage surges between line and line<\/td>\n<td>Protecting against voltage surges between line and earth<\/td>\n<\/tr>\n<tr>\n<td>3. Protective principle<\/td>\n<td>The protective device is triggered by monitoring the voltage between the phase line and the neutral line when the voltage exceeds the set threshold value<\/td>\n<td>The protective device is triggered by monitoring the voltage between the phase line and the ground line when the voltage exceeds the set threshold value<\/td>\n<\/tr>\n<tr>\n<td>4. Scope of application<\/td>\n<td>Suitable for three &#8211; phase four &#8211; wire power systems<\/td>\n<td>Suitable for three &#8211; phase three &#8211; wire power systems<\/td>\n<\/tr>\n<tr>\n<td>5. Usage<\/td>\n<td>Mainly used in industrial and commercial buildings, residential and other power distribution systems<\/td>\n<td>Mainly used in industrial equipment, mechanical equipment and other power systems<\/td>\n<\/tr>\n<tr>\n<td>6. Protection Effect<\/td>\n<td>Effectively protects equipment and circuits from voltage surges.<\/td>\n<td>Effectively protects equipment and circuits from voltage surges.<\/td>\n<\/tr>\n<tr>\n<td>7. Wiring mode<\/td>\n<td>Connection mode is parallel connection between L and N lines<\/td>\n<td>Connection mode is parallel connection between L and PE lines<\/td>\n<\/tr>\n<tr>\n<td>8. System grounding<\/td>\n<td>L &#8211; N grounding<\/td>\n<td>L &#8211; PE grounding<\/td>\n<\/tr>\n<tr>\n<td>9. Current distribution<\/td>\n<td>When a voltage surge occurs, the current is evenly distributed between L and N.<\/td>\n<td>When a voltage surge occurs, the current flows mainly through L to PE.<\/td>\n<\/tr>\n<tr>\n<td>10. Safety<\/td>\n<td>If the neutral wire is disconnected, the surge protector will still work properly<\/td>\n<td>If the ground wire is disconnected, the surge protector may lose its protective capability<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.cnspd.com\/th\/download-category\/all\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-26994 size-full\" src=\"https:\/\/cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3.jpg\" alt=\"SPD catalog\" width=\"600\" height=\"408\" srcset=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3.jpg 600w, https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3-150x102.jpg 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Below is a table showing the differences between L-N type surge protectors and L-PE type surge protectors, in descending order of importance: Difference L &#8211; N method surge protector L &#8211; PE connection method surge protector 1. Installation position Installation between the phase and neutral lines Installation between the phase and earth lines 2. Protecting&#8230;<\/p>","protected":false},"author":18,"featured_media":26012,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-27089","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Difference between L-N surge protectors and L-PE surge protector<\/title>\n<meta name=\"description\" content=\"This table compares L-N and L-PE surge protectors. It covers installation location (L-N between phase zero and L-PE between phase ground), protection object, principle, applicable system, usage, wiring, grounding, current distribution and safety differences, which will help you to understand the difference between the two and use them in a reasonable way in the power system.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cnspd.com\/th\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\/\" \/>\n<meta property=\"og:locale\" content=\"th_TH\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Difference between L-N surge protectors and L-PE surge protector\" \/>\n<meta property=\"og:description\" content=\"This table compares L-N and L-PE surge protectors. It covers installation location (L-N between phase zero and L-PE between phase ground), protection object, principle, applicable system, usage, wiring, grounding, current distribution and safety differences, which will help you to understand the difference between the two and use them in a reasonable way in the power system.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnspd.com\/th\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\/\" \/>\n<meta property=\"og:site_name\" content=\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\" \/>\n<meta property=\"article:published_time\" content=\"2025-01-17T06:12:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-13T05:04:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/06\/\u56fe\u5c4290.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Devin Ling\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devin Ling\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u0e19\u0e32\u0e17\u0e35\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/\"},\"author\":{\"name\":\"Devin Ling\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"headline\":\"What is the difference between L-N surge protectors and L-PE surge protectors?\",\"datePublished\":\"2025-01-17T06:12:38+00:00\",\"dateModified\":\"2026-04-13T05:04:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/\"},\"wordCount\":295,\"image\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.cnspd.com\\\/wp-content\\\/uploads\\\/2024\\\/06\\\/\u56fe\u5c4290.jpg\",\"articleSection\":[\"News\",\"Surge Protection\",\"Technical Guides\"],\"inLanguage\":\"th\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/\",\"name\":\"Difference between L-N surge protectors and L-PE surge protector\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/the-difference-between-l-n-surge-protectors-and-l-pe-surge-protectors\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.cnspd.com\\\/wp-content\\\/uploads\\\/2024\\\/06\\\/\u56fe\u5c4290.jpg\",\"datePublished\":\"2025-01-17T06:12:38+00:00\",\"dateModified\":\"2026-04-13T05:04:50+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"description\":\"This table compares L-N and L-PE surge protectors. 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