{"id":27892,"date":"2025-08-12T13:24:14","date_gmt":"2025-08-12T05:24:14","guid":{"rendered":"https:\/\/cnspd.com\/?p=27892"},"modified":"2026-04-10T13:32:16","modified_gmt":"2026-04-10T05:32:16","slug":"protecting-rs232-ports-from-surge-electric-damage-in-us-industrial-networks","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/","title":{"rendered":"Schutz von RS232-Anschl\u00fcssen vor \u00dcberspannungssch\u00e4den in US-Industrienetzen"},"content":{"rendered":"<p>In den gesamten Vereinigten Staaten sind \u00dcberspannungssch\u00e4den nach wie vor eine der Hauptursachen f\u00fcr den Ausfall von Industrieanlagen. Von Windparks in Texas bis zu U-Bahn-Signalsystemen in New York sind RS232-Kommunikationsleitungen oft die versteckten Schwachstellen in Automatisierungsnetzwerken. Die NOAA berichtet, dass Staaten wie Florida, Louisiana und Mississippi zu den L\u00e4ndern mit der weltweit h\u00f6chsten Blitzschlagh\u00e4ufigkeit geh\u00f6ren, was Schutzma\u00dfnahmen unabdingbar macht.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhalts\u00fcbersicht<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Inhaltsverzeichnis umschalten\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Umschalten auf<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#why-rs232-interfaces-fail-without-protection\" >Warum RS232-Schnittstellen ohne Schutz ausfallen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#leeyee-rs232-surge-protector-for-us-applications\" >LEEYEE RS232-\u00dcberspannungsschutz f\u00fcr US-Anwendungen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#industry-applications-in-the-us\" >Industrieanwendungen in den USA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#us-installation-guidelines\" >US-Installationsrichtlinien<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#conclusion\" >Schlussfolgerung<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/schutz-von-rs232-ports-vor-stromstossschaden-in-industriellen-netzwerken-in-den-usa\/#faqs-rs232-surge-protector-in-the-us\" >FAQs: RS232-\u00dcberspannungsschutz in den USA<\/a><\/li><\/ul><\/nav><\/div>\n<h3 data-start=\"789\" data-end=\"843\"><span class=\"ez-toc-section\" id=\"why-rs232-interfaces-fail-without-protection\"><\/span><strong data-start=\"793\" data-end=\"841\">Warum RS232-Schnittstellen ohne Schutz ausfallen<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"844\" data-end=\"999\">Serielle RS232-Schnittstellen arbeiten mit niedrigen Spannungen (in der Regel \u00b112 V), wodurch sie sehr empfindlich auf transiente \u00dcberspannungen reagieren. In den USA k\u00f6nnen \u00dcberspannungen entstehen durch:<\/p>\n<ul data-start=\"1000\" data-end=\"1173\">\n<li data-start=\"1000\" data-end=\"1044\">\n<p data-start=\"1002\" data-end=\"1044\">Elektromagnetische Impulse, die durch Blitze ausgel\u00f6st werden<\/p>\n<\/li>\n<li data-start=\"1045\" data-end=\"1082\">\n<p data-start=\"1047\" data-end=\"1082\">Schaltvorg\u00e4nge im Versorgungsnetz<\/p>\n<\/li>\n<li data-start=\"1083\" data-end=\"1132\">\n<p data-start=\"1085\" data-end=\"1132\">Fehlerhafte Erdung in Einrichtungen mit mehreren Geb\u00e4uden<\/p>\n<\/li>\n<li data-start=\"1133\" data-end=\"1173\">\n<p data-start=\"1135\" data-end=\"1173\">R\u00fcckspeisung von Generatoren nach Stromausf\u00e4llen<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1175\" data-end=\"1335\">Laut IEEE-Standard C62.41 k\u00f6nnen transiente \u00dcberspannungen von nur 500 V RS232-Transceiver zerst\u00f6ren - weit weniger als die Spannung, die selbst bei weit entfernten Blitzeinschl\u00e4gen entsteht.<\/p>\n<p data-start=\"1175\" data-end=\"1335\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-26994\" src=\"https:\/\/cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3.jpg\" alt=\"RS232-\u00dcberspannungsschutz\" 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\" \/><\/p>\n<hr data-start=\"1337\" data-end=\"1340\" \/>\n<h3 data-start=\"1342\" data-end=\"1400\"><span class=\"ez-toc-section\" id=\"leeyee-rs232-surge-protector-for-us-applications\"><\/span><strong data-start=\"1346\" data-end=\"1398\">LEEYEE RS232-\u00dcberspannungsschutz f\u00fcr US-Anwendungen<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1401\" data-end=\"1471\">F\u00fcr US-basierte Systeme ist die <strong data-start=\"1427\" data-end=\"1459\">LEEYEE RS232 \u00dcberspannungsschutz<\/strong> bietet:<\/p>\n<ul data-start=\"1472\" data-end=\"1719\">\n<li data-start=\"1472\" data-end=\"1525\">\n<p data-start=\"1474\" data-end=\"1525\"><strong data-start=\"1474\" data-end=\"1487\">Imax 20kA<\/strong> Kapazit\u00e4t f\u00fcr extreme St\u00fcrme im Mittleren Westen<\/p>\n<\/li>\n<li data-start=\"1526\" data-end=\"1584\">\n<p data-start=\"1528\" data-end=\"1584\"><strong data-start=\"1528\" data-end=\"1550\">&lt;1ns Reaktionszeit<\/strong> f\u00fcr schnelle Transientenunterdr\u00fcckung<\/p>\n<\/li>\n<li data-start=\"1585\" data-end=\"1638\">\n<p data-start=\"1587\" data-end=\"1638\"><strong data-start=\"1587\" data-end=\"1612\">&lt;15V Klemmspannung<\/strong> zum Schutz von \u00b112V-Signalen<\/p>\n<\/li>\n<li data-start=\"1639\" data-end=\"1719\">\n<p data-start=\"1641\" data-end=\"1719\"><strong data-start=\"1641\" data-end=\"1680\">UL 497A, IEC 61643, ITU-T K.20\/K.21<\/strong> Einhaltung der Vorschriften f\u00fcr die industrielle Abnahme<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1721\" data-end=\"1724\" \/>\n<h3 data-start=\"1726\" data-end=\"1767\"><span class=\"ez-toc-section\" id=\"industry-applications-in-the-us\"><\/span><strong data-start=\"1730\" data-end=\"1765\">Industrieanwendungen in den USA<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol data-start=\"1768\" data-end=\"2062\">\n<li data-start=\"1768\" data-end=\"1827\">\n<p data-start=\"1771\" data-end=\"1827\"><strong data-start=\"1771\" data-end=\"1781\">Energie<\/strong> - Schutz von SCADA-Verbindungen in Windparks in Texas<\/p>\n<\/li>\n<li data-start=\"1828\" data-end=\"1906\">\n<p data-start=\"1831\" data-end=\"1906\"><strong data-start=\"1831\" data-end=\"1848\">Herstellung<\/strong> - PLC-Kommunikationssicherheit in Automobilwerken im Mittleren Westen<\/p>\n<\/li>\n<li data-start=\"1907\" data-end=\"1987\">\n<p data-start=\"1910\" data-end=\"1987\"><strong data-start=\"1910\" data-end=\"1928\">\u00d6ffentliche Verkehrsmittel<\/strong> - U-Bahn-Leitsysteme in gro\u00dfen Ballungsr\u00e4umen<\/p>\n<\/li>\n<li data-start=\"1988\" data-end=\"2062\">\n<p data-start=\"1991\" data-end=\"2062\"><strong data-start=\"1991\" data-end=\"2004\">\u00d6l und Gas<\/strong> - Kontrollverbindungen f\u00fcr Offshore-Plattformen im Golf von Mexiko<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"2064\" data-end=\"2067\" \/>\n<h3 data-start=\"2069\" data-end=\"2105\"><span class=\"ez-toc-section\" id=\"us-installation-guidelines\"><\/span><strong data-start=\"2073\" data-end=\"2103\">US-Installationsrichtlinien<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"2106\" data-end=\"2312\">\n<li data-start=\"2106\" data-end=\"2175\">\n<p data-start=\"2108\" data-end=\"2175\">Installieren Sie Schutzvorrichtungen an <strong data-start=\"2130\" data-end=\"2143\">beide Enden<\/strong> von geb\u00e4ude\u00fcbergreifenden RS232-Verbindungen<\/p>\n<\/li>\n<li data-start=\"2176\" data-end=\"2242\">\n<p data-start=\"2178\" data-end=\"2242\">Erdungswiderstand beibehalten <strong data-start=\"2205\" data-end=\"2216\">&lt;5 Ohm<\/strong> gem\u00e4\u00df NEC-Empfehlungen<\/p>\n<\/li>\n<li data-start=\"2243\" data-end=\"2312\">\n<p data-start=\"2245\" data-end=\"2312\">Verwenden Sie geschirmte Twisted-Pair-Kabel f\u00fcr zus\u00e4tzlichen \u00dcberspannungsschutz<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2314\" data-end=\"2317\" \/>\n<h3 data-start=\"2319\" data-end=\"2339\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span><strong data-start=\"2323\" data-end=\"2337\">Schlussfolgerung<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2340\" data-end=\"2488\">F\u00fcr US-Einrichtungen ist die Integration eines RS232-\u00dcberspannungsschutzes eine kosteneffiziente Methode, um \u00dcberspannungsrisiken zu beseitigen und die Betriebszeit aufrechtzuerhalten.<\/p>\n<hr data-start=\"2490\" data-end=\"2493\" \/>\n<h2 data-start=\"2495\" data-end=\"2541\"><span class=\"ez-toc-section\" id=\"faqs-rs232-surge-protector-in-the-us\"><\/span><strong data-start=\"2498\" data-end=\"2539\">FAQs: RS232-\u00dcberspannungsschutz in den USA<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2542\" data-end=\"2691\"><strong data-start=\"2542\" data-end=\"2549\">Q1:<\/strong> Ist nach US-Vorschriften ein \u00dcberspannungsschutz f\u00fcr RS232-Leitungen erforderlich?<br data-start=\"2604\" data-end=\"2607\" \/>W\u00e4hrend sich die NEC auf Stromleitungen konzentriert, wird dies in der Industrie nachdr\u00fccklich empfohlen.<\/p>\n<p data-start=\"2693\" data-end=\"2839\"><strong data-start=\"2693\" data-end=\"2700\">Q2:<\/strong> Kann dieses Ger\u00e4t vor EMP durch nahe gelegene Blitze sch\u00fctzen?<br data-start=\"2759\" data-end=\"2762\" \/>Ja, wenn sie richtig geerdet ist, kann sie induzierte Transienten wirksam unterdr\u00fccken.<\/p>","protected":false},"excerpt":{"rendered":"<p>In den gesamten Vereinigten Staaten sind \u00dcberspannungssch\u00e4den nach wie vor eine der Hauptursachen f\u00fcr den Ausfall von Industrieanlagen. Von Windparks in Texas bis zu U-Bahn-Signalsystemen in New York sind RS232-Kommunikationsleitungen oft die versteckten Schwachstellen in Automatisierungsnetzwerken. NOAA berichtet, dass Staaten wie Florida, Louisiana und Mississippi mit die h\u00f6chsten Blitzschlagraten der Welt aufweisen...<\/p>","protected":false},"author":18,"featured_media":23487,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-27892","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>RS232 surge protector | LEEYEE Electrics<\/title>\n<meta name=\"description\" content=\"Discover RS232 surge protector and further information about electrical protection. 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