{"id":8443,"date":"2026-06-16T17:15:15","date_gmt":"2026-06-16T17:15:15","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?p=8443"},"modified":"2026-06-16T17:15:15","modified_gmt":"2026-06-16T17:15:15","slug":"24v-dc-vs-220v-ac-instrument-power-supply-guide","status":"publish","type":"post","link":"https:\/\/www.yunrui-controls.com\/ms\/24v-dc-vs-220v-ac-instrument-power-supply-guide\/","title":{"rendered":"Bekalan Kuasa Instrumen 24V DC vs 220V AC: Panduan Pemilihan Lengkap"},"content":{"rendered":"<p>Memilih antara <strong>Bekalan kuasa instrumen 24V DC dan 220V AC<\/strong> merupakan keputusan kritikal dalam automasi perindustrian. Voltan yang salah boleh menyebabkan bahaya keselamatan, gangguan isyarat atau kegagalan peralatan. Panduan ini menerangkan bila hendak menggunakan 24V DC berbanding 220V AC untuk instrumen perindustrian, dengan kriteria pemilihan praktikal untuk aplikasi medan sebenar.<\/p>\n<p>Navigasi Pantas: <a href=\"#comparison\">Perbandingan<\/a> | <a href=\"#24vdc-design\">Reka Bentuk DC 24V<\/a> | <a href=\"#220vac-apps\">Aplikasi AC 220V<\/a> | <a href=\"#hazardous\">Kawasan Berbahaya<\/a> | <a href=\"#selection\">Proses Pemilihan<\/a> | <a href=\"#mistakes\">Kesilapan Biasa<\/a><\/p>\n<h2 id=\"comparison\">1. 24V DC vs 220V AC: Perbezaan Teras<\/h2>\n<p>Pilihan antara 24V DC dan 220V AC bergantung pada keperluan keselamatan, penggunaan kuasa dan persekitaran pemasangan. Berikut adalah perbandingan asas:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\">\n<tbody>\n<tr style=\"background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;\">\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Ciri<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">24V DC<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">220V AC<\/th>\n<\/tr>\n<tr style=\"background: #f8f9ff;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83d\udd12 Kelas Keselamatan<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">SELV (Voltan Tambahan Rendah), risiko kejutan minimum<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Voltan berbahaya, memerlukan perlindungan penebat<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83d\udee1\ufe0f Keselamatan Intrinsik<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u2705 Sesuai dengan Ex ia\/ib (dengan penghadang keselamatan)<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u274c Tidak serasi dengan keselamatan intrinsik<\/td>\n<\/tr>\n<tr style=\"background: #f8f9ff;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83d\udce1 Gangguan Isyarat<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u2705 Tiada EMI 50Hz, selamat untuk isyarat analog<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u26a0\ufe0f Menghasilkan medan magnet 50Hz, memerlukan pemisahan<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83d\udd0c Gelung Dua Wayar<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u2705 Sokongan dua wayar penuh 4-20mA<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u274c Tidak disokong, memerlukan kuasa dan isyarat berasingan<\/td>\n<\/tr>\n<tr style=\"background: #f8f9ff;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\u26a1 Julat Kuasa<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Kuasa rendah: pemancar, penentu kedudukan (&lt;1W tipikal)<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Kuasa tinggi: penganalisis, meter aliran, pengesanan haba (&gt;5W)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83d\udccf Jarak Kabel<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u26a0\ufe0f Penurunan voltan ketara melebihi 300m<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u2705 Penurunan voltan minimum, mampu jarak jauh<\/td>\n<\/tr>\n<tr style=\"background: #f8f9ff;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>\ud83c\udfd7\ufe0f Infrastruktur<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Memerlukan bekalan kuasa pensuisan DC<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Terus dari panel pengedaran<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%); color: white; padding: 15px; border-radius: 8px; margin: 20px 0;\">\n<p style=\"margin: 0; font-weight: bold;\">\u26a0\ufe0f Nota Kritikal:<\/p>\n<p style=\"margin: 5px 0 0 0;\">Kawasan berbahaya Zon 0 (di dalam tangki, atmosfera letupan berterusan) HANYA membenarkan 24V DC dengan penghadang keselamatan intrinsik. 220V AC dilarang sama sekali di Zon 0 tanpa mengira kaedah perlindungan.<\/p>\n<\/div>\n<h2 id=\"24vdc-design\">2. Reka Bentuk Sistem DC 24V<\/h2>\n<h3>\ud83d\udd27 2.1 Konfigurasi Bekalan Kuasa<\/h3>\n<p>Sistem DC 24V perindustrian memerlukan kejuruteraan yang betul. Untuk gelung kritikal dan sistem keselamatan SIS, bekalan kuasa berlebihan adalah wajib:<\/p>\n<ul>\n<li><strong>\ud83d\udd04 N+1 Redundansi:<\/strong> Dua bekalan kuasa selari memastikan operasi berterusan jika salah satu gagal<\/li>\n<li><strong>\ud83d\udcca Kualiti Kuasa:<\/strong> Bekalan gred perindustrian dengan riak &lt;50mV dan peraturan \u00b11%<\/li>\n<li><strong>\ud83d\udd0c Perlindungan Cawangan:<\/strong> Fius bebas (1A\/2A) setiap kumpulan litar\u2014jangan sekali-kali sambungkan semua instrumen ke satu bas yang tidak dilindungi<\/li>\n<li><strong>\ud83d\udd0b Sandaran UPS:<\/strong> Sistem SIS memerlukan kuasa tanpa gangguan dengan sandaran selama 30+ minit<\/li>\n<\/ul>\n<h3>\ud83e\uddee 2.2 Pengiraan Susut Voltan<\/h3>\n<p>Penurunan voltan DC 24V ke atas kabel panjang boleh menyebabkan instrumen ditutup. Kira sebelum pemasangan:<\/p>\n<div style=\"background: #f0f4ff; padding: 15px; border-radius: 8px; border-left: 4px solid #667eea; margin: 15px 0;\">\n<p style=\"margin: 0; font-weight: bold; color: #667eea;\">Formula:<\/p>\n<p style=\"margin: 5px 0 0 0; font-family: monospace;\">\u0394V = I \u00d7 (\u03c1 \u00d7 2L \u00f7 S)<\/p>\n<\/div>\n<p><strong>Di mana:<\/strong><br \/>\n\u03c1 = 0.0172 \u03a9\u00b7mm\u00b2\/m (kerintangan kuprum)<br \/>\nL = jarak sehala (m)<br \/>\nS = keratan rentas kabel (mm\u00b2)<br \/>\nI = arus maksimum (A)<\/p>\n<p><strong>\ud83d\udccb Contoh:<\/strong> Jarak 300m, kabel 0.5mm\u00b2, pemancar 20mA<\/p>\n<ul>\n<li>Rintangan gelung: R = 0.0172 \u00d7 600 \u00f7 0.5 = <strong>20.64 \u03a9<\/strong><\/li>\n<li>Susut voltan: \u0394V = 0.020 \u00d7 20.64 = <strong>0.41V<\/strong><\/li>\n<li>Voltan pada instrumen: 24V \u2013 0.41V = <strong>23.59V<\/strong> \u2705 (boleh diterima, melebihi minimum 12V)<\/li>\n<\/ul>\n<p>Untuk jarak melebihi 500m, sahkan terhadap voltan minimum instrumen termasuk penurunan penghalang keselamatan.<\/p>\n<h2 id=\"220vac-apps\">3. Senario Aplikasi AC 220V<\/h2>\n<p>220V AC tidak ketinggalan zaman\u2014ia merupakan pilihan yang tepat untuk instrumentasi berkuasa tinggi:<\/p>\n<h3>\ud83d\udd0c 3.1 Meter Aliran Elektromagnet<\/h3>\n<p>Gegelung pengujaan menarik 5-20W, melebihi had 480mW bagi gelung dua dawai 4-20mA. Konfigurasi empat dawai dengan kuasa AC 220V bebas adalah standard. <a href=\"https:\/\/www.yunrui-controls.com\/ms\/brands\/rosemount\/\">Meter aliran magnet Rosemount<\/a> dan <a href=\"https:\/\/www.yunrui-controls.com\/ms\/brands\/endress-hauser\/\">Siri Endress+Hauser Promag<\/a> biasanya memerlukan bekalan AC.<\/p>\n<h3>\ud83e\uddea 3.2 Penganalisis Dalam Talian<\/h3>\n<p>Penganalisis pH, penganalisis oksigen dan kromatografi mengandungi modul pemanasan, pam sampel dan paparan yang menggunakan kuasa 50-200W. Peranti ini tidak boleh beroperasi dari 24V DC tanpa aras arus yang tidak praktikal.<\/p>\n<h3>\ud83d\udd25 3.3 Pengesanan Haba Elektrik<\/h3>\n<p>Pemasangan iklim sejuk memerlukan talian impuls dan penutup yang dipanaskan. Pengesanan haba ialah beban rintangan beratus-ratus watt\u2014hanya 220V AC yang praktikal.<\/p>\n<h3>\u2699\ufe0f 3.4 Penggerak Besar<\/h3>\n<p>Sementara itu <a href=\"https:\/\/www.yunrui-controls.com\/ms\/products\/fisher-fieldvue-dvc6200\/\">Penentu kedudukan Fisher DVC6200<\/a> Menggunakan 24V DC, penggerak elektro-hidraulik dan injap solenoid berkuasa tinggi memerlukan 220V AC untuk pemacu motor.<\/p>\n<div style=\"background: linear-gradient(135deg, #feca57 0%, #ff9f43 100%); color: #333; padding: 15px; border-radius: 8px; margin: 20px 0;\">\n<p style=\"margin: 0; font-weight: bold;\">\u26a0\ufe0f Keperluan Keselamatan:<\/p>\n<p style=\"margin: 5px 0 0 0;\">Hanya juruelektrik berlesen sahaja yang boleh memasang atau menyelenggara instrumentasi AC 220V. Kawasan berbahaya mesti mempunyai pensijilan Ex d atau Ex e.<\/p>\n<\/div>\n<h2 id=\"hazardous\">4. Peraturan Bekalan Kuasa Kawasan Berbahaya<\/h2>\n<table style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\">\n<tbody>\n<tr style=\"background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%); color: white;\">\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Jenis Perlindungan<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Penandaan<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Voltan yang Dibenarkan<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Zon<\/th>\n<\/tr>\n<tr style=\"background: #fff5f5;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\ud83d\udee1\ufe0f Keselamatan Intrinsik<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>Bekas ia\/ib<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u2705 24V DC sahaja (dengan penghadang keselamatan)<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Zon 0, 1, 2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\ud83d\udd25 Kalis Api<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>Bekas d<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">24V DC atau 220V AC<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Zon 1, 2<\/td>\n<\/tr>\n<tr style=\"background: #fff5f5;\">\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u26a1 Keselamatan yang Lebih Baik<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>Bekas e<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">24V DC atau 220V AC<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Zon 1, 2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\ud83d\udca8 Bertekanan<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\"><strong>Bekas p<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Sebarang voltan<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">Zon 1, 2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"selection\">5. Proses Pemilihan Bekalan Kuasa<\/h2>\n<p>Ikuti urutan ini untuk pemilihan voltan yang betul:<\/p>\n<div style=\"background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%); padding: 20px; border-radius: 10px; margin: 20px 0;\">\n<ol style=\"margin: 0; padding-left: 20px;\">\n<li><strong>\ud83d\udcd6 Semak helaian data:<\/strong> Sahkan julat voltan yang disokong instrumen daripada pengilang<\/li>\n<li><strong>\ud83d\uddfa\ufe0f Tentukan zon:<\/strong> Zon 0 \u2192 Keselamatan intrinsik 24V DC wajib; Zon 1\/2 \u2192 fleksibel dengan perlindungan yang betul<\/li>\n<li><strong>\u26a1 Kira kuasa:<\/strong> &lt;1W \u2192 24V DC dua wayar; 1-20W \u2192 24V DC empat wayar; &gt;20W \u2192 220V AC<\/li>\n<li><strong>\ud83d\udee1\ufe0f Keperluan SIS:<\/strong> Sistem keselamatan memerlukan UPS khusus, diasingkan daripada kuasa proses<\/li>\n<li><strong>\ud83d\udccf Semak jarak:<\/strong> Larian &gt;300m memerlukan pengiraan susutan voltan DC 24V<\/li>\n<li><strong>\ud83c\udfaf Piawaikan:<\/strong> Gunakan voltan yang konsisten bagi setiap unit proses untuk memudahkan alat ganti dan penyelenggaraan<\/li>\n<\/ol>\n<\/div>\n<h2 id=\"mistakes\">6. Kesilapan Kejuruteraan Biasa<\/h2>\n<div style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin: 20px 0;\">\n<div style=\"background: #ffeaa7; padding: 15px; border-radius: 8px; border-left: 4px solid #fdcb6e;\">\n<p style=\"margin: 0; font-weight: bold; color: #d63031;\">\u274c Kekutuban DC Terbalik<\/p>\n<p style=\"margin: 5px 0 0 0; font-size: 13px;\">Instrumen tanpa perlindungan terbalik akan gagal secara kekal. Gunakan merah untuk positif, biru\/hitam untuk negatif.<\/p>\n<\/div>\n<div style=\"background: #fab1a0; padding: 15px; border-radius: 8px; border-left: 4px solid #e17055;\">\n<p style=\"margin: 0; font-weight: bold; color: #d63031;\">\u274c Penghalaan Kabel Campuran<\/p>\n<p style=\"margin: 5px 0 0 0; font-size: 13px;\">Kabel AC 220V dan DC 24V tidak boleh berkongsi saluran. Kekalkan jarak minimum 200mm.<\/p>\n<\/div>\n<div style=\"background: #74b9ff; padding: 15px; border-radius: 8px; border-left: 4px solid #0984e3;\">\n<p style=\"margin: 0; font-weight: bold; color: #2d3436;\">\u274c Kekeliruan Pembumian<\/p>\n<p style=\"margin: 5px 0 0 0; font-size: 13px;\">Negatif DC mungkin terapung atau dibumikan\u2014pilih satu kaedah bagi setiap sistem, jangan sekali-kali campurkan.<\/p>\n<\/div>\n<div style=\"background: #a29bfe; padding: 15px; border-radius: 8px; border-left: 4px solid #6c5ce7;\">\n<p style=\"margin: 0; font-weight: bold; color: #2d3436;\">\u274c Tiada Perlindungan Cawangan<\/p>\n<p style=\"margin: 5px 0 0 0; font-size: 13px;\">Satu litar pintas pada bas yang tidak dilindungi akan melumpuhkan semua instrumen. Sambungkan fius setiap 5-10 peranti.<\/p>\n<\/div>\n<\/div>\n<h2>Ringkasan<\/h2>\n<p>Tiada voltan tunggal yang lebih unggul secara universal untuk <strong>Bekalan kuasa instrumen 24V DC vs 220V AC<\/strong>. Pilihan yang betul bergantung pada keperluan aplikasi:<\/p>\n<ul>\n<li><strong>\u2705 24V DC:<\/strong> Piawaian untuk <a href=\"https:\/\/www.yunrui-controls.com\/ms\/product_cat\/transmitters\/pressure-transmitters\/\">pemancar tekanan<\/a>, <a href=\"https:\/\/www.yunrui-controls.com\/ms\/product_cat\/transmitters\/temperature-transmitters\/\">pemancar suhu<\/a>, <a href=\"https:\/\/www.yunrui-controls.com\/ms\/product_cat\/valve-positioners\/\">penentu kedudukan injap<\/a>, dan instrumen aras. Diutamakan untuk keselamatan, imuniti gangguan dan keserasian keselamatan intrinsik.<\/li>\n<li><strong>\u2705 220V AC:<\/strong> Diperlukan untuk <a href=\"https:\/\/www.yunrui-controls.com\/ms\/product_cat\/flow-meters\/electromagnetic-flow-meters\/\">meter aliran elektromagnet<\/a>, penganalisis dalam talian, pengesanan haba dan penggerak besar. Sambungan grid langsung menghapuskan infrastruktur DC.<\/li>\n<li><strong>\ud83d\udee1\ufe0f Kawasan berbahaya:<\/strong> Zon 0 mengehadkan voltan kepada 24V DC dengan penghadang keselamatan. Zon 1\/2 membenarkan 220V AC dengan penutup kalis api atau penutup keselamatan yang dipertingkatkan.<\/li>\n<\/ul>\n<h2>Bacaan Berkaitan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.yunrui-controls.com\/ms\/4-20ma-signal-industrial-automation\/\">Isyarat 4-20mA dalam Automasi Perindustrian: Prinsip dan Penyelesaian Masalah<\/a><\/li>\n<li><a href=\"https:\/\/www.yunrui-controls.com\/ms\/fisher-dvc6200-dvc2000-feedback-troubleshooting\/\">Penyelesaian Masalah Isyarat Maklum Balas Fisher DVC6200\/DVC2000<\/a><\/li>\n<li><a href=\"https:\/\/www.yunrui-controls.com\/ms\/valve-positioner-working-principle-troubleshooting\/\">Panduan Lengkap Penentu Posisi Injap: Prinsip Kerja + Penyelesaian Masalah Lapangan<\/a><\/li>\n<li><a href=\"https:\/\/www.yunrui-controls.com\/ms\/control-valve-cv-calculation-actuator-sizing\/\">Pemilihan Penggerak dan Saiz Injap: Kaedah Pengiraan Kejuruteraan<\/a><\/li>\n<li><a href=\"https:\/\/www.yunrui-controls.com\/ms\/radar-level-transmitter-frequency-guide\/\">Panduan Frekuensi Pemancar Aras Radar<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Choosing between 24V DC and 220V AC instrument power supply is a critical decision in industrial automation. The wrong voltage can create safety hazards, signal interference, or equipment failure. This guide explains when to use 24V DC versus 220V AC for industrial instruments, with practical selection criteria for real field applications. Quick Navigation: Comparison | [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8444,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[384,1],"tags":[],"class_list":["post-8443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>24V DC vs 220V AC Instrument Power Supply - YUNRUI<\/title>\n<meta name=\"description\" content=\"echnical guide for selecting 24V DC or 220V AC power supplies for industrial instruments. 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