{"id":5429,"date":"2026-08-15T08:00:00","date_gmt":"2026-08-15T00:00:00","guid":{"rendered":"https:\/\/www.aox-actuator.com\/?p=5429"},"modified":"2026-08-31T17:33:15","modified_gmt":"2026-08-31T09:33:15","slug":"wire-electric-actuator-4-20ma-signal-control","status":"publish","type":"post","link":"https:\/\/www.aox-actuator.com\/de\/blog\/technical-guides\/wire-electric-actuator-4-20ma-signal-control\/","title":{"rendered":"Wie verdrahtet man einen elektrischen Stellantrieb f\u00fcr die 4-20mA-Signalsteuerung?"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Schnelle Antwort<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Um ein 4-20mA-Signal eines elektrischen Stellantriebs zu verdrahten, verbinden Sie die positive Klemme des Controllers mit dem positiven analogen Eingang des Stellantriebs gem\u00e4\u00df dem Verdrahtungsdiagramm des Herstellers. Schlie\u00dfen Sie den analogen Regelkreis, indem Sie den R\u00fcckleiter zur negativen Klemme des Controllers f\u00fchren.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die schlechte Anordnung des Regelkreises in einer Nassprozessanlage f\u00fchrt zu Signalabweichungen, die zu einem vorzeitigen Verschlei\u00df des Ventils f\u00fchren. Die Installation sollte abgeschirmte Twisted-Pair-Verkabelung verwenden, um St\u00f6rungen durch elektromagnetische Interferenzen im Betrieb des Stellantriebs zu vermeiden.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"680\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1200x680.webp\" alt=\"AOX elektrischer Ventilantrieb f\u00fcr pr\u00e4zise 4\u201120mA-Signalsteuerung\" class=\"wp-image-5430\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1200x680.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-500x283.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-300x170.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-768x435.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1536x870.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-18x10.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-132x75.webp 132w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-480x272.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-800x453.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1.webp 1667w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Was ist 4-20mA-Regelung f\u00fcr elektrische Stellantriebe?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ein <a href=\"https:\/\/www.aox-actuator.com\/de\/product\/aox-vr-series-electric-actuator\/\" target=\"_blank\" rel=\"noreferrer noopener\">4-20mA-Regelungssystem f\u00fcr elektrische Stellantriebe<\/a> wird h\u00e4ufig in der Prozessautomatisierung eingesetzt, da das Stromsignal unempfindlich gegen\u00fcber Spannungsabf\u00e4llen \u00fcber lange Kabel ist. Eine ordnungsgem\u00e4\u00dfe 4-20mA-Verdrahtung des elektrischen Stellantriebs gew\u00e4hrleistet, dass die Controller-Platine einen genauen Positionsbefehl erh\u00e4lt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Verwendung von vorisolierten Aderendh\u00fclsen f\u00fcr die Klemmleistenverdrahtung sch\u00fctzt die Platine vor ausgefransten Dr\u00e4hten.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Wie die 4-20mA-Modulationsregelung funktioniert<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Das modulierende Signal des elektrischen Stellantriebs bildet die Ventilposition linear \u00fcber eine Spanne von 16mA ab. Unter Standardkonfigurationen entspricht 4mA einem vollst\u00e4ndig geschlossenen Ventil (0%-Hub), w\u00e4hrend 20mA einem vollst\u00e4ndig ge\u00f6ffneten Ventil (100%-Hub) entspricht.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Signale im mittleren Bereich, wie z. B. 12mA, entsprechen typischerweise einem 50%-Hub in einer linearen Konfiguration, obwohl umgekehrt wirkende Setups die Reaktion umkehren k\u00f6nnen. Der interne Mikroprozessor des Stellantriebs \u00fcberwacht diesen Strom und steuert den <a href=\"https:\/\/www.aox-actuator.com\/de\/blog\/how-gearbox-reducer-work\/\" target=\"_blank\" rel=\"noreferrer noopener\">Getriebemotor <\/a>um diesen analogen Wert pr\u00e4zise abzugleichen. Die Verwendung standardisierter analoger Stromsignale in der industriellen Prozessmesstechnik und -regelung ist in der IEC 60381-1 geregelt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Schaltplan: 4-20mA an elektrischen Stellantrieb anschlie\u00dfen<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Im Geh\u00e4use verbinden Klemmbl\u00f6cke direkt mit der integrierten 4-20mA-Ventilpositioniererkarte. Entfernen Sie den Au\u00dfenmantel bis zur vom Hersteller angegebenen L\u00e4nge, um eine ausreichende Flexibilit\u00e4t des Drahtes zu erm\u00f6glichen, ohne blanke Leiter freizulegen.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"626\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1200x626.webp\" alt=\"Schritt-f\u00fcr-Schritt-Schaltplan f\u00fcr 4\u201120mA-Elektroventibrantrieb\" class=\"wp-image-5431\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1200x626.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-500x261.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-300x156.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-768x401.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1536x801.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-18x9.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-144x75.webp 144w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-480x250.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-800x417.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1.webp 1737w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Normalerweise wird die Abschirmung des Twisted-Pair-Kabels am SPS-Ende geerdet, um das Risiko von Masseschleifenst\u00f6rungen zu reduzieren. \u00dcberpr\u00fcfen Sie immer die Geh\u00e4usedichtung und reinigen Sie die Dichtfl\u00e4chen, bevor Sie den Deckel festziehen, um das Eindringen von Feuchtigkeit zu verhindern.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4-20mA vs. 0-10V vs. Modbus: Signalvergleich<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Im Gegensatz zu Spannungssignalen, die unter Leitungswiderstand leiden, sind Stromschleifen \u00fcber weitl\u00e4ufige Anlagen hinweg zuverl\u00e4ssig. Digitale Protokolle wie Modbus bieten reichhaltigere Diagnosen, erfordern aber eine komplexe Adressierung, was analoge Schleifen einfacher macht.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Signalart<\/strong><\/td><td><strong>St\u00f6rfestigkeit<\/strong><\/td><td><strong>Entfernungsbegrenzung<\/strong><\/td><td><strong>Hardware-Komplexit\u00e4t<\/strong><\/td><td><strong>Beste Verwendung<\/strong><\/td><\/tr><tr><td><strong>4-20mA Strom<\/strong><\/td><td>Exzellent<\/td><td>Hoch (widerstandsabh\u00e4ngig)<\/td><td>Niedrig (einfache 2-Draht-Verbindung)<\/td><td>Starke chemische Verarbeitung<\/td><\/tr><tr><td><strong>0-10V Spannung<\/strong><\/td><td>Arm<\/td><td>Sehr kurz (empfindlich gegen\u00fcber Spannungsabfall)<\/td><td>Niedrig (erfordert gemeinsame Masse)<\/td><td>HLK und Reinr\u00e4ume<\/td><\/tr><tr><td><strong>Modbus RTU<\/strong><\/td><td>Exzellent<\/td><td>Lang (abh\u00e4ngig vom RS-485-Transceiver)<\/td><td>Mittel (erfordert Controller-Konfiguration)<\/td><td>Mehrger\u00e4te-Netzwerke<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Tabelle vergleicht wichtige Parameter, um Ihnen bei der Auswahl der effektivsten Steuerungsmethode f\u00fcr Ihre Prozessschleife zu helfen. Prozessanlagen priorisieren die Signal\u00fcbertragung per Strom, um eine zuverl\u00e4ssige, st\u00f6rungsfreie Kommunikation \u00fcber lange Distanzen aufrechtzuerhalten.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>H\u00e4ufige Verdrahtungsprobleme und Fehlerbehebung<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"626\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1200x626.webp\" alt=\"4\u201120mA-Signalisierungs-Fehlerbehebungsdiagramm f\u00fcr elektrische Ventilantriebe\" class=\"wp-image-5432\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1200x626.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-500x261.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-300x157.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-768x401.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1536x802.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-18x9.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-144x75.webp 144w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-480x251.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-800x418.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1.webp 1736w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Die Inbetriebnahme vor Ort deckt oft Verdrahtungsfehler auf, die die Zeitpl\u00e4ne f\u00fcr die Anlageninbetriebnahme verz\u00f6gern. Ein Schleifenstrom von 0mA zeigt eine physische Unterbrechung im Stromkreis an, w\u00e4hrend ein niedriger Strom auf Widerstands\u00fcberg\u00e4nge oder schlechte Anschl\u00fcsse hindeutet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wenn das Signal vorhanden ist, das Ventilverhalten jedoch instabil ist, pr\u00fcfen Sie auf Abschirmungs-Masseschleifen oder St\u00f6rungen durch benachbarte Wechselstromkabel. Feuchtigkeit oder interne Kondensation auf den Klemmbrettern k\u00f6nnen unerwartete <a href=\"https:\/\/www.aox-actuator.com\/de\/blog\/actuator-valve-not-working-signs\/\" target=\"_blank\" rel=\"noreferrer noopener\">Signalabweichungen<\/a> in feuchten Bereichen verursachen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>PLC-Integrationsleitfaden f\u00fcr 4-20mA-Stellantriebe<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die Integration eines 4-20mA-Ger\u00e4ts eines elektrischen Stellantriebs in ein SPS-System erfordert die Anpassung der Stromversorgung an die Schleifenimpedanz. Das Design eines zuverl\u00e4ssigen elektrischen Stellantriebs <a href=\"https:\/\/www.aox-actuator.com\/de\/blog\/control-valve-modulation-onoff\/\" target=\"_blank\" rel=\"noreferrer noopener\">Regelkreis<\/a> erfordert die Berechnung des Gesamtwiderstands, um die Treiberkapazit\u00e4t sicherzustellen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Um die minimal erforderliche Schleifenspeisespannung zu berechnen, multiplizieren Sie den maximalen Strom von 20mA mit dem gesamten Schleifenwiderstand und addieren Sie den erforderlichen Betriebsspielraum des Stellantriebs. Wenn diese Summe die Spannungsgrenzen des Transmitters \u00fcberschreitet, tritt eine Signalbegrenzung im oberen Bereich auf und verhindert den vollen Ventilhub.<\/p>\n\n\n\n<style>\n  .hero-recommendation-vertical {\n    max-width: 420px;\n    margin: 32px auto;\n    background: #fff;\n    border-radius: 16px;\n    box-shadow: 0 4px 18px 0 rgba(60, 66, 87, 0.10);\n    overflow: hidden;\n    transition: box-shadow 0.2s;\n  }\n  .hero-link-vertical {\n    display: flex;\n    flex-direction: column;\n    align-items: center;\n    text-decoration: none;\n    color: inherit;\n    width: 100%;\n    transition: background 0.2s;\n  }\n  .hero-link-vertical:hover {\n    background: #f8f9fa;\n  }\n  .hero-image-vertical img {\n    display: block;\n    width: 100%;\n    height: 210px;\n    object-fit: cover;\n    background: #f4f4f4;\n  }\n  .hero-content-vertical {\n    padding: 28px 22px 24px 22px;\n    text-align: center;\n    width: 100%;\n  }\n  .hero-content-vertical h2 {\n    margin: 0 0 12px 0;\n    font-size: 1.3rem;\n    font-weight: 700;\n    color: #263238;\n    letter-spacing: 0.01rem;\n  }\n  .hero-content-vertical p {\n    margin: 0 0 18px 0;\n    font-size: 1rem;\n    color: #546e7a;\n    line-height: 1.5;\n  }\n  .hero-btn-vertical {\n    padding: 10px 26px;\n    background: #ffc107; \/* Changed button background color *\/\n    border: none;\n    border-radius: 6px;\n    font-size: 1rem;\n    font-weight: 600;\n    color: #fff;\n    cursor: pointer;\n    transition: background 0.2s, color 0.2s;\n    box-shadow: 0 2px 8px rgba(255,193,7,0.10); \/* Adjusted shadow color *\/\n  }\n  .hero-btn-vertical:hover {\n    background: #e0a800; \/* Darkened color for hover effect (approx 10-15%) *\/\n  }\n  @media (max-width: 600px) {\n    .hero-recommendation-vertical {\n      max-width: 98vw;\n    }\n    .hero-image-vertical img {\n      height: 160px;\n    }\n    .hero-content-vertical {\n      padding: 18px 8px 16px 8px;\n    }\n  }\n<\/style>\n<div class=\"hero-recommendation-vertical\">\n  <a href=\"https:\/\/www.aox-actuator.com\/de\/product\/aox-vr-series-electric-actuator\/\" class=\"hero-link-vertical\" target=\"_blank\" rel=\"noopener\">\n    <div class=\"hero-image-vertical\">\n      <img decoding=\"async\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2024\/09\/AOX-VR-series-electric-actuator.webp\" alt=\"Elektrischer Ventilantrieb der Serie AOX-VR\">\n    <\/div>\n    <div class=\"hero-content-vertical\">\n      <p><strong>Elektrischer Ventilantrieb der Serie AOX-VR<\/strong><\/p>\n      <p>\n      Die Serie \u201cAOX-VR\u201d zeichnet sich durch eine kompakte Bauweise mit ausgezeichneter Witterungs- und Sto\u00dffestigkeit aus.\n      <\/p>\n      <button class=\"hero-btn-vertical\">Produkte &amp; L\u00f6sungen erkunden<\/button>\n    <\/div>\n  <\/a>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Abschluss<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die korrekte Installation Ihrer 4-20mA-Schleife f\u00fcr elektrische Stellantriebe verhindert Ausfallzeiten und sorgt f\u00fcr eine pr\u00e4zise Fl\u00fcssigkeitsregelung. \u00dcberpr\u00fcfen Sie die Schleifenimpedanz und den Spielraum, bevor Sie den Stromkreis einschalten, um eine langfristige Leistung zu gew\u00e4hrleisten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Erw\u00e4gen Sie bei Upgrades die Zusammenarbeit mit einem Hersteller, der Hochleistungs- <a href=\"https:\/\/www.aox-actuator.com\/de\/product-category\/electric-actuator\/\" target=\"_blank\" rel=\"noreferrer noopener\">elektrische Ventilantriebe<\/a>. anbietet. Dieser proaktive Ansatz reduziert die Fehlerbehebungszeit und gew\u00e4hrleistet eine nahtlose Integration mit Ihrer vorhandenen Hardware.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>H\u00e4ufig gestellte Fragen<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1.<\/strong> <strong>Was passiert, wenn ich eine 4-20mA-Schleife parallel verdrahte?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Das Verdrahten von Stromschleifen in Parallelschaltung teilt den Signalstrom zwischen Ger\u00e4ten auf, was eine ordnungsgem\u00e4\u00dfe Kalibrierung verhindert und zu falschen Messwerten oder Schleifenfehlern f\u00fchren kann. Eine herk\u00f6mmliche 4-20mA-Stromschleife wird in Reihe geschaltet, sodass derselbe Strom jedes Schleifenger\u00e4t durchl\u00e4uft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.<\/strong> <strong>Sollte das Schirmkabel an beiden Enden geerdet werden?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Typischerweise wird der Schirm an einem Ende geerdet, oft auf der Seite des SPS-Schranks, um das Risiko von Masseschleifenst\u00f6rungen zu reduzieren. Das Erden an beiden Enden schafft einen elektrischen Pfad, der Rauschen in das Steuersignal einf\u00fchren kann.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Wie \u00fcberpr\u00fcfe ich, ob die analoge Schleife funktioniert?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Verwenden Sie ein Digitalmultimeter in Reihe, um den Strom \u00fcber den aktiven Stromkreis zu messen. \u00dcberpr\u00fcfen Sie, ob 4mA das Ventil auf 0%, 12mA auf 50% und 20mA auf 100% ge\u00f6ffnet positionieren.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div style=\"--wp--block-button--width: 50;\" class=\"wp-block-button has-custom-width wp-block-button__width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.aox-actuator.com\/de\/contact\/\" style=\"background-color:#ffc107;font-style:normal;font-weight:700\" target=\"_blank\" rel=\"noreferrer noopener\">Kontaktieren Sie uns<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Quick Answer To wire an electric actuator 4-20mA signal, connect the controller&#8217;s positive terminal to the actuator&#8217;s positive analog input according to the manufacturer&#8217;s wiring diagram.<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":5430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[],"class_list":["post-5429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Electric Actuator 4-20mA Wiring Guide | AOX<\/title>\n<meta name=\"description\" content=\"Learn how to wire an electric actuator for 4-20mA signal control. This guide covers wiring diagrams, PLC integration, signal comparison, and common troubleshooting tips.\" \/>\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.aox-actuator.com\/de\/blog\/technical-guides\/wire-electric-actuator-4-20ma-signal-control\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Electric Actuator 4-20mA Wiring Guide | AOX\" \/>\n<meta property=\"og:description\" content=\"Learn how to wire an electric actuator for 4-20mA signal control. 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