{"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\/it\/qual-e-la-differenza-tra-i-limitatori-di-sovratensione-l-n-e-i-limitatori-di-sovratensione-l-pe\/","title":{"rendered":"Qual \u00e8 la differenza tra i limitatori di sovratensione L-N e i limitatori di sovratensione L-PE?"},"content":{"rendered":"<p>Di seguito \u00e8 riportata una tabella che mostra le differenze tra i limitatori di sovratensione di tipo L-N e i limitatori di sovratensione di tipo L-PE, in ordine decrescente di importanza:<\/p>\n<table style=\"height: 545px;\" width=\"1402\">\n<thead>\n<tr>\n<th>Differenza<\/th>\n<th>Metodo L - N protezione da sovratensioni<\/th>\n<th>L - Metodo di collegamento PE del limitatore di sovratensione<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1. Posizione di installazione<\/td>\n<td>Installazione tra le linee di fase e di neutro<\/td>\n<td>Installazione tra le linee di fase e di terra<\/td>\n<\/tr>\n<tr>\n<td>2. Protezione dell'oggetto<\/td>\n<td>Protezione contro le sovratensioni tra linea e linea<\/td>\n<td>Protezione contro le sovratensioni tra linea e terra<\/td>\n<\/tr>\n<tr>\n<td>3. Principio di protezione<\/td>\n<td>Il dispositivo di protezione si attiva monitorando la tensione tra la linea di fase e la linea di neutro quando la tensione supera il valore di soglia impostato.<\/td>\n<td>Il dispositivo di protezione si attiva monitorando la tensione tra la linea di fase e la linea di terra quando la tensione supera il valore di soglia impostato.<\/td>\n<\/tr>\n<tr>\n<td>4. Ambito di applicazione<\/td>\n<td>Adatto per sistemi di alimentazione trifase a quattro fili<\/td>\n<td>Adatto per sistemi di alimentazione trifase a tre fili<\/td>\n<\/tr>\n<tr>\n<td>5. Utilizzo<\/td>\n<td>Utilizzato principalmente in edifici industriali e commerciali, in sistemi di distribuzione di energia residenziale e di altro tipo.<\/td>\n<td>Utilizzato principalmente nelle apparecchiature industriali, nelle apparecchiature meccaniche e in altri sistemi di alimentazione.<\/td>\n<\/tr>\n<tr>\n<td>6. Effetto di protezione<\/td>\n<td>Protegge efficacemente le apparecchiature e i circuiti dalle sovratensioni.<\/td>\n<td>Protegge efficacemente le apparecchiature e i circuiti dalle sovratensioni.<\/td>\n<\/tr>\n<tr>\n<td>7. Modalit\u00e0 di cablaggio<\/td>\n<td>La modalit\u00e0 di connessione \u00e8 il collegamento in parallelo tra le linee L e N<\/td>\n<td>La modalit\u00e0 di connessione \u00e8 il collegamento in parallelo tra le linee L e PE<\/td>\n<\/tr>\n<tr>\n<td>8. Messa a terra del sistema<\/td>\n<td>Messa a terra L - N<\/td>\n<td>L - Messa a terra PE<\/td>\n<\/tr>\n<tr>\n<td>9. Distribuzione di corrente<\/td>\n<td>Quando si verifica un picco di tensione, la corrente viene distribuita uniformemente tra L e N.<\/td>\n<td>Quando si verifica una sovratensione, la corrente scorre principalmente attraverso L verso PE.<\/td>\n<\/tr>\n<tr>\n<td>10. Sicurezza<\/td>\n<td>Se il filo neutro \u00e8 scollegato, il limitatore di sovratensione continua a funzionare correttamente.<\/td>\n<td>Se il filo di terra viene scollegato, il limitatore di sovratensione potrebbe perdere la sua capacit\u00e0 di protezione.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.cnspd.com\/it\/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=\"Catalogo SPD\" 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>Di seguito \u00e8 riportata una tabella che mostra le differenze tra i limitatori di sovratensione di tipo L-N e i limitatori di sovratensione di tipo L-PE, in ordine decrescente di importanza: Differenza Protettore di sovratensioni con metodo L - N Protettore di sovratensioni con metodo di connessione L - PE 1. Posizione di installazione Installazione tra le linee di fase e neutro Installazione tra le linee di fase e terra Posizione di installazione Installazione tra le linee di fase e neutro Installazione tra le linee di fase e terra 2. Protezione... Protezione...<\/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 v27.5 - 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\/it\/qual-e-la-differenza-tra-i-limitatori-di-sovratensione-l-n-e-i-limitatori-di-sovratensione-l-pe\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\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\/it\/qual-e-la-differenza-tra-i-limitatori-di-sovratensione-l-n-e-i-limitatori-di-sovratensione-l-pe\/\" \/>\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=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devin Ling\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\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\":\"it-IT\"},{\"@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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