{"id":1820,"date":"2026-07-27T10:32:17","date_gmt":"2026-07-27T02:32:17","guid":{"rendered":"https:\/\/jutrion.com\/?page_id=1820"},"modified":"2026-07-27T10:37:26","modified_gmt":"2026-07-27T02:37:26","slug":"selector-de-requisitos-de-afdd","status":"publish","type":"page","link":"https:\/\/jutrion.com\/es\/tools\/afdd-requirement-selector\/","title":{"rendered":"requisito de afdd"},"content":{"rendered":"\n<!-- ===== JUTRION AFDD Requirement & Selection \u2014 paste into a WordPress \"Custom HTML\" block ===== -->\n<div class=\"jt-calc\">\n  <p class=\"eyebrow\">Circuit protection<\/p>\n  <h1>AFDD Requirement &amp; Selection Helper<\/h1>\n  <p class=\"tool-lede\">See where arc fault detection is commonly recommended, which protection architecture fits, and how to specify the device. This is risk-based guidance, not a compliance verdict \u2014 whether an AFDD is mandatory depends on the national wiring standard and edition adopted for the project.<\/p>\n\n  <div class=\"jt-card\"><div class=\"jt-grid\">\n    <div class=\"jt-inputs\">\n      <div class=\"jt-field\"><label for=\"jt-market\">Standard framing<\/label>\n        <select id=\"jt-market\"><option value=\"iec\" selected>IEC (continental)<\/option><option value=\"uk\">UK (BS 7671)<\/option><option value=\"na\">North America (AFCI \/ NEC)<\/option><option value=\"other\">Other \/ unsure<\/option><\/select>\n      <\/div>\n      <div class=\"jt-field\"><label for=\"jt-loc\">Location \/ occupancy<\/label>\n        <select id=\"jt-loc\">\n          <option value=\"sleep\" selected>Sleeping accommodation (bedrooms, hotels, care, student housing)<\/option>\n          <option value=\"fire\">High fire-risk \/ combustible construction (timber, barns, storage)<\/option>\n          <option value=\"irrep\">Irreplaceable contents (museums, heritage, archives)<\/option>\n          <option value=\"std\">Standard commercial \/ residential<\/option>\n        <\/select>\n      <\/div>\n      <div class=\"jt-field\"><label for=\"jt-circuit\">Circuit<\/label>\n        <select id=\"jt-circuit\"><option value=\"socket\" selected>Socket-outlet final circuit<\/option><option value=\"fixed\">Lighting \/ fixed equipment<\/option><\/select>\n      <\/div>\n      <div class=\"jt-field\"><label class=\"jt-check\"><input type=\"checkbox\" id=\"jt-rcd\" checked> Circuit also needs residual-current (RCD) protection<\/label><\/div>\n      <div class=\"jt-field\"><label for=\"jt-in\">Circuit rated current (A)<\/label><input type=\"number\" id=\"jt-in\" value=\"16\" min=\"1\" step=\"1\" inputmode=\"numeric\"><\/div>\n    <\/div>\n    <div class=\"jt-readout\">\n      <div><div class=\"jt-rl\">Recommendation (risk-based)<\/div><div class=\"jt-level\" id=\"jt-lvl\">\u2014<\/div><\/div>\n      <div class=\"jt-steps\"><div id=\"s1\">Optional<\/div><div id=\"s2\">Consider<\/div><div id=\"s3\">Recommended<\/div><\/div>\n      <div class=\"jt-rec\"><div class=\"k\">Suggested architecture<\/div><div class=\"v\" id=\"jt-arch\">\u2014<\/div><\/div>\n      <div class=\"jt-rec\"><div class=\"k\">Specify<\/div><div class=\"v\" id=\"jt-spec\" style=\"font-size:13px\">\u2014<\/div><\/div>\n      <button type=\"button\" class=\"jt-copy\" id=\"jt-copy\">Copy result<\/button>\n    <\/div>\n  <\/div><\/div>\n\n  <div class=\"jt-content\">\n    <h2>How to read this<\/h2>\n    <p>An AFDD (called an AFCI in North America) detects hazardous series and parallel arcs that an MCB or RCD may not see. It is applied mainly to final circuits where damaged wiring or connections could start a fire without producing enough overcurrent or earth leakage to trip conventional protection. Sleeping accommodation, combustible locations, and premises with irreplaceable contents are where it is most often recommended or required.<\/p>\n    <p>The architecture depends on which other functions the circuit needs. Where the circuit also needs residual-current protection \u2014 common for socket outlets \u2014 an AFDD-RCBO combines arc, overload, short-circuit, and residual-current protection in one device. Where residual-current protection is separate or not required, an AFDD combined with an MCB is used.<\/p>\n    <div class=\"jt-note\"><span>\u26a0<\/span><span><b>This is guidance, not compliance.<\/b> Whether an AFDD is mandatory, and on which circuits, is set by the adopted national standard and its edition (IEC 60364-4-42, BS 7671, or the local NEC). Confirm the exact requirement for the destination and project before finalising the design.<\/span><\/div>\n\n    <h2>Frequently asked questions<\/h2>\n    <div class=\"jt-faq\">\n      <details><summary>Is an AFDD mandatory?<\/summary><p>There is no single worldwide rule. It depends on the adopted installation standard and edition, the building use, and the circuit purpose and rating. A client specification, insurer, or documented risk assessment may also require it.<\/p><\/details>\n      <details><summary>AFDD or AFCI?<\/summary><p>AFDD is the IEC term (IEC 62606); AFCI is the North American term (UL 1699, applied per the NEC). They mitigate similar arc hazards but are not automatically interchangeable \u2014 match the device to the destination market.<\/p><\/details>\n      <details><summary>Does an AFDD replace an RCBO?<\/summary><p>Only a device explicitly certified as an AFDD integrated with an RCBO provides arc, overload, short-circuit, and residual-current protection together. A standalone AFDD does not \u2014 read the certificate scope and markings.<\/p><\/details>\n    <\/div>\n\n    <div class=\"jt-cta\">\n      <h2>Specify the AFDD<\/h2>\n      <p>Match the architecture, rating, and RCD type to a device for the destination market.<\/p>\n      <div class=\"jt-cta-btns\">\n        <a class=\"jt-btn\" href=\"https:\/\/jutrion.com\/afdd\/\">Explore JUTRION AFDDs<\/a>\n        <a class=\"jt-btn ghost\" href=\"https:\/\/jutrion.com\/contact\/\">Get a free quote<\/a>\n      <\/div>\n      <p class=\"jt-related\">Related products: <a href=\"https:\/\/jutrion.com\/afdd\/\">AFDD<\/a> \u00b7 <a href=\"https:\/\/jutrion.com\/rcbo\/\">RCBO<\/a> \u00b7 <a href=\"https:\/\/jutrion.com\/products\/\">All products<\/a><\/p>\n    <\/div>\n\n    <div class=\"jt-std\"><strong>Standards referenced<\/strong>IEC 62606 (AFDD product) \u00b7 IEC 60364-4-42 (protection against thermal effects) \u00b7 BS 7671 \u00b7 UL 1699 (AFCI, North America).<\/div>\n    <p class=\"jt-fine\">Risk-based guidance only. The mandatory scope and final selection must be confirmed by a qualified person against the adopted national standard, its edition, and the manufacturer&#8217;s datasheet.<\/p>\n  <\/div>\n<\/div>\n\n<script>\n(function(){\n  var $=function(id){return document.getElementById(id);};\n  var market=$('jt-market'),loc=$('jt-loc'),circuit=$('jt-circuit'),rcd=$('jt-rcd'),inn=$('jt-in'),\n      lvl=$('jt-lvl'),arch=$('jt-arch'),spec=$('jt-spec'),s1=$('s1'),s2=$('s2'),s3=$('s3');\n  function calc(){\n    var high=(loc.value==='sleep'||loc.value==='fire'||loc.value==='irrep');\n    s1.className='';s2.className='';s3.className='';\n    if(high){lvl.textContent='Strongly recommended';s3.className='on';}\n    else if(circuit.value==='socket'){lvl.textContent='Consider (risk-based)';s2.className='on';}\n    else{lvl.textContent='Optional';s1.className='on';}\n    var term=(market.value==='na')?'AFCI':'AFDD';\n    var a=rcd.checked?(term+'-RCBO'):(term+' + MCB');\n    arch.textContent=a;\n    var np=(market.value==='na')?'':' 1P+N',rcdt=rcd.checked?', RCD Type A':'';\n    spec.textContent=a+np+', '+(parseInt(inn.value,10)||16)+' A, curve C'+rcdt;\n  }\n  [market,loc,circuit,inn].forEach(function(el){el.addEventListener('input',calc);el.addEventListener('change',calc);});\n  rcd.addEventListener('change',calc);\n  $('jt-copy').addEventListener('click',function(){var b=$('jt-copy');var txt='Location: '+loc.options[loc.selectedIndex].text+'\\nRecommendation: '+lvl.textContent+'\\nArchitecture: '+arch.textContent+'\\nSpecify: '+spec.textContent;navigator.clipboard.writeText(txt).then(function(){var o=b.textContent;b.textContent='Copied \u2713';setTimeout(function(){b.textContent=o;},1500);}).catch(function(){b.textContent='Press Ctrl+C';});});\n  calc();\n})();\n<\/script>\n<!-- ===== end block ===== -->\n\n","protected":false},"excerpt":{"rendered":"<p>Circuit protection AFDD Requirement &amp; Selection Helper See where arc fault detection is commonly recommended, which protection architecture fits, and how to specify the device. This is risk-based guidance, not a compliance verdict \u2014 whether an AFDD is mandatory depends on the national wiring standard and edition adopted for the project. Standard framing IEC (continental)UK [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1778,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1820","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/pages\/1820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/comments?post=1820"}],"version-history":[{"count":1,"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/pages\/1820\/revisions"}],"predecessor-version":[{"id":1821,"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/pages\/1820\/revisions\/1821"}],"up":[{"embeddable":true,"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/pages\/1778"}],"wp:attachment":[{"href":"https:\/\/jutrion.com\/es\/wp-json\/wp\/v2\/media?parent=1820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}