{"id":5493,"date":"2025-10-20T10:32:18","date_gmt":"2025-10-20T08:32:18","guid":{"rendered":"https:\/\/www.electrex.it\/en\/?p=5493"},"modified":"2025-11-03T12:14:39","modified_gmt":"2025-11-03T11:14:39","slug":"pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality","status":"publish","type":"post","link":"https:\/\/www.electrex.it\/en\/products\/energy-analyzers-pro-series\/pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality.html","title":{"rendered":"PFA64-1B1Z2-EMF FEMTO PRO D4 5A CLAMP RS485 FULL 230-240V SIO ENERGY ANALYZER HARMONIC &#038; POWER QUALITY"},"content":{"rendered":"<p><a href=\"https:\/\/www.electrex.it\/en\/?attachment_id=5464\" rel=\"attachment wp-att-5363\"><img decoding=\"async\" class=\"wp-image-5464 size-full alignleft\" src=\"https:\/\/www.electrex.it\/en\/wp-content\/uploads\/2025\/10\/Femto-D4-Pro.png\" alt=\"\" width=\"300\" height=\"316\" srcset=\"https:\/\/www.electrex.it\/en\/wp-content\/uploads\/2025\/10\/Femto-D4-Pro-200x211.png 200w, https:\/\/www.electrex.it\/en\/wp-content\/uploads\/2025\/10\/Femto-D4-Pro-285x300.png 285w, https:\/\/www.electrex.it\/en\/wp-content\/uploads\/2025\/10\/Femto-D4-Pro.png 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Harmonic &amp; Power Quality Energy Analyzer.<br \/>\nSingle\/Three-Phase Energy Analyzer (up to 3 single-phase lines) with accuracy class 0.5S. Connection via CTs ..\/5A or ..\/1A (not included).<br \/>\nMeasures THD and TDD on voltage and current, neutral current, maximum and minimum voltage, maximum current and power, and active energy per phase.<br \/>\nPerforms single harmonic analysis up to the 31st order on the three phase voltages and three line currents in real time.<br \/>\nIntegrated datalogger for recording four harmonic components, total and per-phase energy counters, and average, minimum, and maximum values of voltage, current, power, and frequency.<br \/>\nRecords and stores voltage events (interruptions, sags, and swells) for power quality analysis.<br \/>\nIncludes phase sequence detection and configuration.<br \/>\nFeatures four operating timers and eight configurable alarms, including support for complex logic conditions.<br \/>\nEquipped with a graphical LCD display and a calibration LED.<br \/>\nCommunication via Modbus-RTU RS485.<br \/>\nSIO Bus port for integration of Milli Pro I\/O and Milli Pro Sensor expansion modules with additional inputs\/outputs and\/or environmental sensors.<br \/>\nFirmware remotely upgradeable and expandable through PUK codes for future upgrades even after installation.<br \/>\nDIN-rail mounting, 4 modules.<br \/>\nInstallation via screw terminals.<br \/>\nPower supply: 230\u2013240 VAC.<br \/>\nComplies with standards EN 50470-1 and EN 50470-3.<\/p>\n<p><div class=\"bfd-single-download\" id=\"bfd-single-download-5357\">\n\t\t<div class=\"bfd-single-row\">\n\n\t\t\t\t <div class=\"bfd-column bfd-single-button-container\">\n\t\t \t\t\t\t \t\t<a href=\"https:\/\/www.electrex.it\/en\/bfd_download\/datasheet-femto-pro-atto-pro\" title=\"Download Data sheet Femto Pro - Atto Pro\" class=\"bfd-svg-container bfd-single-download-btn\" download >\n\t\t\t\t \t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"28\" height=\"30\" viewBox=\"0 0 28 30\" version=\"1.1\"><g stroke=\"none\" stroke-width=\"1\" fill=\"none\" fill-rule=\"evenodd\"><g transform=\"translate(-6.000000, -5.000000)\" fill=\"currentColor\"><path d=\"M26.7 21.7L21.7 21.7 21.7 5 18.3 5 18.3 21.7 13.3 21.7 20 28.3 26.7 21.7 26.7 21.7ZM6.7 31.7L6.7 35 33.3 35 33.3 31.7 6.7 31.7 6.7 31.7Z\"\/><\/g><\/g><\/svg>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t <\/div>\n\t\t <div class=\"bfd-column\">\n\t\t \t<a href=\"https:\/\/www.electrex.it\/en\/bfd_download\/datasheet-femto-pro-atto-pro\" title=\"Download Data sheet Femto Pro - Atto Pro\" class=\"bfd-download-meta\" download >\n\t\t\t \t<p class=\"bfd-download-title\"><strong>Data sheet Femto Pro - Atto Pro<\/strong><\/p>\n\t\t\t \t\t\t\t \t<p class=\"bfd-bottom-zero\">\n\t\t\t \t\t<small>\n\t\t\t \t\t\tType: pdf\t\t\t \t\t<\/small>\n\t\t\t \t<\/p>\n\t\t\t <\/a>\n\t\t<\/div>\n\t\t <div class=\"bfd-column bfd-mime-col\">\n\t\t \t<object data=\"https:\/\/www.electrex.it\/en\/wp-content\/plugins\/better-file-download\/public\/partials\/..\/..\/colour-svg-file-types\/pdf.svg\" type=\"image\/svg+xml\" class=\"bfd-svg bfd-icon-img bfd-icon-single\"><\/object>\n\n\t\t<\/div>\n\t<\/div>\n<\/div> <!-- \/.single-download -->\n<br\/>\n <div class=\"bfd-single-download\" id=\"bfd-single-download-5543\">\n\t\t<div class=\"bfd-single-row\">\n\n\t\t\t\t <div class=\"bfd-column bfd-single-button-container\">\n\t\t \t\t\t\t \t\t<a href=\"https:\/\/www.electrex.it\/en\/bfd_download\/installation-instructions-femto-pro-d4-rs485-clamp\" title=\"Download Installation instructions Femto Pro D4 RS485 CLAMP\" class=\"bfd-svg-container bfd-single-download-btn\" download >\n\t\t\t\t \t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"28\" height=\"30\" viewBox=\"0 0 28 30\" version=\"1.1\"><g stroke=\"none\" stroke-width=\"1\" fill=\"none\" fill-rule=\"evenodd\"><g transform=\"translate(-6.000000, -5.000000)\" fill=\"currentColor\"><path d=\"M26.7 21.7L21.7 21.7 21.7 5 18.3 5 18.3 21.7 13.3 21.7 20 28.3 26.7 21.7 26.7 21.7ZM6.7 31.7L6.7 35 33.3 35 33.3 31.7 6.7 31.7 6.7 31.7Z\"\/><\/g><\/g><\/svg>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t <\/div>\n\t\t <div class=\"bfd-column\">\n\t\t \t<a href=\"https:\/\/www.electrex.it\/en\/bfd_download\/installation-instructions-femto-pro-d4-rs485-clamp\" title=\"Download Installation instructions Femto Pro D4 RS485 CLAMP\" class=\"bfd-download-meta\" download >\n\t\t\t \t<p class=\"bfd-download-title\"><strong>Installation instructions Femto Pro D4 RS485 CLAMP<\/strong><\/p>\n\t\t\t \t\t\t\t \t<p class=\"bfd-bottom-zero\">\n\t\t\t \t\t<small>\n\t\t\t \t\t\tType: pdf\t\t\t \t\t<\/small>\n\t\t\t \t<\/p>\n\t\t\t <\/a>\n\t\t<\/div>\n\t\t <div class=\"bfd-column bfd-mime-col\">\n\t\t \t<object data=\"https:\/\/www.electrex.it\/en\/wp-content\/plugins\/better-file-download\/public\/partials\/..\/..\/colour-svg-file-types\/pdf.svg\" type=\"image\/svg+xml\" class=\"bfd-svg bfd-icon-img bfd-icon-single\"><\/object>\n\n\t\t<\/div>\n\t<\/div>\n<\/div> <!-- \/.single-download -->\n<br\/>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Harmonic &amp; Power Quality Energy Analyzer. Single\/Three-Phase Energy Analyzer (up to 3 single-phase lines) with accuracy class 0.5S. Connection via CTs ..\/5A or ..\/1A (not included). Measures THD and TDD on voltage and current, neutral current, maximum and minimum voltage, maximum current and power, and active energy per phase. Performs  [&#8230;]<\/p>\n","protected":false},"author":3,"featured_media":5464,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[831],"tags":[],"class_list":["post-5493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy-analyzers-pro-series"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PFA64-1B1Z2-EMF FEMTO PRO D4 5A CLAMP RS485 FULL 230-240V SIO ENERGY ANALYZER HARMONIC &amp; POWER QUALITY - Electrex - the energy saving technology<\/title>\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.electrex.it\/en\/products\/energy-analyzers-pro-series\/pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PFA64-1B1Z2-EMF FEMTO PRO D4 5A CLAMP RS485 FULL 230-240V SIO ENERGY ANALYZER HARMONIC &amp; POWER QUALITY - Electrex - the energy saving technology\" \/>\n<meta property=\"og:description\" content=\"Harmonic &amp; Power Quality Energy Analyzer. Single\/Three-Phase Energy Analyzer (up to 3 single-phase lines) with accuracy class 0.5S. Connection via CTs ..\/5A or ..\/1A (not included). Measures THD and TDD on voltage and current, neutral current, maximum and minimum voltage, maximum current and power, and active energy per phase. Performs [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electrex.it\/en\/products\/energy-analyzers-pro-series\/pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality.html\" \/>\n<meta property=\"og:site_name\" content=\"Electrex - the energy saving technology\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-20T08:32:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-03T11:14:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.electrex.it\/en\/wp-content\/uploads\/2025\/10\/Femto-D4-Pro.png\" \/>\n\t<meta property=\"og:image:width\" content=\"300\" \/>\n\t<meta property=\"og:image:height\" content=\"316\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Skender\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Skender\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.electrex.it\\\/en\\\/products\\\/energy-analyzers-pro-series\\\/pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality.html#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.electrex.it\\\/en\\\/products\\\/energy-analyzers-pro-series\\\/pfa64-1b1z2-emf-femto-pro-d4-5a-clamp-rs485-full-230-240v-sio-energy-analyzer-harmonic-power-quality.html\"},\"author\":{\"name\":\"Skender\",\"@id\":\"https:\\\/\\\/www.electrex.it\\\/en\\\/#\\\/schema\\\/person\\\/c95fac169422d7c263ca94c4cd838b11\"},\"headline\":\"PFA64-1B1Z2-EMF FEMTO PRO D4 5A CLAMP RS485 FULL 230-240V SIO ENERGY ANALYZER HARMONIC &#038; 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