{"id":742,"date":"2025-08-28T14:47:02","date_gmt":"2025-08-28T14:47:02","guid":{"rendered":"https:\/\/cnkuangya.com\/?page_id=742"},"modified":"2025-09-17T08:57:32","modified_gmt":"2025-09-17T08:57:32","slug":"ac-circuit-breaker","status":"publish","type":"page","link":"https:\/\/cnkuangya.com\/pt\/ac-circuit-breaker\/","title":{"rendered":"Disjuntor CA"},"content":{"rendered":"<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-88a751d\" data-block-id=\"88a751d\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-88a751d-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0ea088d\" data-v=\"4\" data-block-id=\"0ea088d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0ea088d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0ea088d-inner-blocks\">\n<!-- ============= \/ac-circuit-breakers\/ \u2014 AC CIRCUIT BREAKER HUB (Kuangya) ============= -->\n<section id=\"ky-ac-hub\" class=\"kb-wrap\" aria-label=\"Hub de disjuntores CA\">\n  <style>\n    :root{\n      --brand:#B5220E; 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Use os cart\u00f5es abaixo para ir para a p\u00e1gina da categoria correta.<\/p>\n      <div class=\"kb-cta\">\n        <a class=\"kb-btn primary\" href=\"#kb-categories\">Ver categorias<\/a>\n        <a class=\"kb-btn\" href=\"#kb-compare\">Compara\u00e7\u00e3o r\u00e1pida<\/a>\n      <\/div>\n      <nav class=\"kb-bc\" aria-label=\"Breadcrumb\">\n        <a href=\"\/pt\/\">In\u00edcio<\/a> \/ <span>Disjuntores de CA<\/span>\n      <\/nav>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC2 \u2014 CATEGORY CARDS ===== -->\n  <div id=\"kb-categories\" class=\"kb-cards\">\n    <div class=\"kb-container\">\n      <div class=\"kb-grid\">\n        <!-- MCB (AC) -->\n        <article class=\"kb-card\">\n          <span class=\"kb-chip\">Sobrecorrente - CA<\/span>\n          <h3>MCB - Disjuntor em miniatura<\/h3>\n          <p>Protege contra sobrecargas e curtos-circuitos (termomagn\u00e9tico). Escolha os polos, a corrente nominal e a curva de disparo (B\/C\/D).<\/p>\n          <a class=\"go\" href=\"\/pt\/MCB\/\" aria-label=\"Ir para a categoria MCB\">Veja Categoria \u2192<\/a>\n        <\/article>\n        <!-- RCCB (AC) -->\n        <article class=\"kb-card\">\n          <span class=\"kb-chip\">Corrente residual - CA<\/span>\n          <h3>RCCB - Disjuntor de corrente residual<\/h3>\n          <p>Somente prote\u00e7\u00e3o contra vazamento (sem sobrecorrente). Requer MCB\/MCCB a montante. Selecione o tipo (CA\/A\/F\/B\/B+), a sensibilidade (I\u0394n) e os polos.<\/p>\n          <a class=\"go\" href=\"\/pt\/RCCB\/\" aria-label=\"Ir para a categoria RCCB\">Guia de sele\u00e7\u00e3o \u2192<\/a>\n        <\/article>\n        <!-- RCBO (AC) -->\n        <article class=\"kb-card\">\n          <span class=\"kb-chip\">Residual + Sobrecorrente - CA<\/span>\n          <h3>RCBO - Prote\u00e7\u00e3o combinada<\/h3>\n          <p>Integra MCB + RCD em um \u00fanico dispositivo. Ideal para circuitos terminais que precisam de prote\u00e7\u00e3o contra corrente de falha e sobrecarga\/curto-circuito.<\/p>\n          <a class=\"go\" href=\"\/pt\/RCBO\/\" aria-label=\"Ir para a categoria RCBO\">Veja Categoria \u2192<\/a>\n        <\/article>\n        <!-- AFDD (AC) -->\n        <article class=\"kb-card\">\n          <span class=\"kb-chip\">Falha de arco - CA<\/span>\n          <h3>AFDD - Dispositivo de detec\u00e7\u00e3o de falha de arco<\/h3>\n          <p>Detecta padr\u00f5es de arco em s\u00e9rie\/paralelo para reduzir o risco de inc\u00eandio. Frequentemente coordenado com RCBO\/MCB em quartos e outras \u00e1reas sens\u00edveis.<\/p>\n          <a class=\"go\" href=\"\/pt\/AFDD\/\" aria-label=\"Ir para a categoria AFDD\">Saiba mais \u2192<\/a>\n        <\/article>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC3 \u2014 QUICK COMPARISON (AC) ===== -->\n  <div id=\"kb-compare\" class=\"kb-sec\">\n    <div class=\"kb-container\">\n      <h2>Compara\u00e7\u00e3o r\u00e1pida (CA 50\/60 Hz)<\/h2>\n      <p class=\"lead\">Fun\u00e7\u00f5es principais, op\u00e7\u00f5es de polos e uso t\u00edpico. As especifica\u00e7\u00f5es detalhadas est\u00e3o dispon\u00edveis nas p\u00e1ginas das categorias.<\/p>\n      <div class=\"kb-table-wrap\">\n        <table class=\"kb-table\" aria-label=\"Compara\u00e7\u00e3o do tipo de disjuntor CA\">\n          <thead>\n            <tr>\n              <th>Tipo<\/th>\n              <th>Protege contra<\/th>\n              <th>Postes t\u00edpicos<\/th>\n              <th>Configura\u00e7\u00f5es comuns<\/th>\n              <th>Uso t\u00edpico (AC)<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><a href=\"\/pt\/MCB\/\" class=\"kb-badge\">MCB<\/a><\/td>\n              <td>Sobrecarga e curto-circuito (t\u00e9rmico-magn\u00e9tico)<\/td>\n              <td>1P \/ 2P \/ 3P \/ 4P<\/td>\n              <td>Em (por exemplo, 6-125A), curva de viagem B\/C\/D<\/td>\n              <td>Alimentadores e circuitos de deriva\u00e7\u00e3o; coordenar com RCCB\/RCBO\/AFDD<\/td>\n            <\/tr>\n            <tr>\n              <td><a href=\"\/pt\/RCCB\/\" class=\"kb-badge\">RCCB<\/a><\/td>\n              <td>Apenas corrente residual (terra)<\/td>\n              <td>2P \/ 4P<\/td>\n              <td>I\u0394n 10\/30\/100\/300 mA; tipo AC\/A\/F\/B\/B+; S (seletivo)<\/td>\n              <td>Prote\u00e7\u00e3o do pessoal; necessidades do MCB\/MCCB a montante<\/td>\n            <\/tr>\n            <tr>\n              <td><a href=\"\/pt\/RCBO\/\" class=\"kb-badge\">RCBO<\/a><\/td>\n              <td>Residual + sobrecorrente (combinado)<\/td>\n              <td>1P+N \/ 2P \/ 3P+N \/ 4P<\/td>\n              <td>In, I\u0394n 10\/30\/100\/300 mA; tipo AC\/A\/F\/B<\/td>\n              <td>Circuitos terminais que precisam de ambas as prote\u00e7\u00f5es em uma<\/td>\n            <\/tr>\n            <tr>\n              <td><a href=\"\/pt\/AFDD\/\" class=\"kb-badge\">AFDD<\/a><\/td>\n              <td>Detec\u00e7\u00e3o de padr\u00e3o de falha de arco (s\u00e9rie\/paralelo)<\/td>\n              <td>1P+N \/ 2P (por s\u00e9rie)<\/td>\n              <td>Coordena\u00e7\u00e3o com RCBO\/MCB; diretrizes de instala\u00e7\u00e3o<\/td>\n              <td>Quartos, fia\u00e7\u00e3o antiga, armazenamento de combust\u00edvel, salas de TI<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC4 \u2014 CHOOSE BY APPLICATION (AC) ===== -->\n  <div class=\"kb-sec\">\n    <div class=\"kb-container\">\n      <h2>Escolha por aplicativo de CA<\/h2>\n      <p class=\"lead\">Ir para o seletor de categoria mais relevante.<\/p>\n      <div class=\"kb-use\">\n        <a href=\"\/pt\/RCBO\/#selector\" aria-label=\"Circuitos residenciais e terminais\">Circuitos residenciais \/ terminais \u2192 RCBO<\/a>\n        <a href=\"\/pt\/RCCB\/#selection\" aria-label=\"Prote\u00e7\u00e3o de pessoal industrial\">Prote\u00e7\u00e3o de pessoal industrial \u2192 RCCB<\/a>\n        <a href=\"\/pt\/MCB\/#selection\" aria-label=\"Alimentadores e circuitos de deriva\u00e7\u00e3o\">Alimentadores e circuitos de deriva\u00e7\u00e3o \u2192 MCB<\/a>\n        <a href=\"\/pt\/AFDD\/#guide\" aria-label=\"\u00c1reas com alto risco de inc\u00eandio\">\u00c1reas com alto risco de inc\u00eandio \u2192 AFDD<\/a>\n        <a href=\"\/pt\/RCBO\/#type-b\" aria-label=\"Cen\u00e1rios de vazamento EV\/VFD\/DC\">Fuga EV\/VFD\/DC \u2192 RCBO Tipo B\/F<\/a>\n        <a href=\"\/pt\/RCCB\/#selective\" aria-label=\"Coordena\u00e7\u00e3o seletiva\">Coordena\u00e7\u00e3o seletiva \u2192 RCCB S<\/a>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC5 \u2014 PROTECTION STACK \/ RELATED PAGES (AC) ===== -->\n  <div class=\"kb-sec\">\n    <div class=\"kb-container\">\n      <h2>Pilha de prote\u00e7\u00e3o e coordena\u00e7\u00e3o (AC)<\/h2>\n      <p class=\"lead\">Prote\u00e7\u00e3o contra falhas e surtos em camadas para sistemas CA robustos.<\/p>\n      <div class=\"kb-chips\">\n        <a class=\"kb-chip brand\" href=\"\/pt\/AC-SPD\/\">AC SPD<\/a>\n        <a class=\"kb-chip\" href=\"\/pt\/MCB\/\">MCB<\/a>\n        <a class=\"kb-chip\" href=\"\/pt\/RCCB\/\">RCCB<\/a>\n        <a class=\"kb-chip\" href=\"\/pt\/RCBO\/\">RCBO<\/a>\n        <a class=\"kb-chip\" href=\"\/pt\/AFDD\/\">AFDD<\/a>\n        <a class=\"kb-chip\" href=\"\/pt\/automatic-transfer-switch\/\">ATS<\/a>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC6 \u2014 RESOURCES ===== -->\n  <div class=\"kb-sec\">\n    <div class=\"kb-container\">\n      <h2>Recursos<\/h2>\n      <div class=\"kb-list\" role=\"list\">\n        <a href=\"\/pt\/MCB\/#faq\"><span>Curvas de viagem B\/C\/D - como escolher<\/span><strong>FAQ DO MCB<\/strong><\/a>\n        <a href=\"\/pt\/RCCB\/#types\"><span>Tipos de forma de onda AC \/ A \/ F \/ B \/ B+<\/span><strong>Tipos de RCCB<\/strong><\/a>\n        <a href=\"\/pt\/RCBO\/#selector\"><span>Op\u00e7\u00f5es e sensibilidades do polo<\/span><strong>Seletor RCBO<\/strong><\/a>\n        <a href=\"\/pt\/AFDD\/#guide\"><span>Coordena\u00e7\u00e3o do AFDD com o RCBO\/MCB<\/span><strong>Guia AFDD<\/strong><\/a>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- ===== SEC7 \u2014 FAQ (AC Hub) ===== -->\n  <div class=\"kb-sec\" id=\"faq\">\n    <div class=\"kb-container\">\n      <h2>Perguntas frequentes<\/h2>\n      <details>\n        <summary>Qual \u00e9 a diferen\u00e7a entre MCB, RCCB, RCBO e AFDD?<\/summary>\n        <div>O MCB lida com sobrecorrente; o RCCB lida apenas com corrente residual; o RCBO combina ambos; o AFDD detecta falhas de arco. Use as p\u00e1ginas de categoria para selecionar os modelos.<\/div>\n      <\/details>\n      <details>\n        <summary>Para circuitos terminais CA, devo usar RCCB ou RCBO?<\/summary>\n        <div>O RCBO \u00e9 geralmente preferido porque integra prote\u00e7\u00e3o contra sobrecorrente e corrente residual. O RCCB requer um MCB\/MCCB a montante.<\/div>\n      <\/details>\n      <details>\n        <summary>Quando o AFDD \u00e9 recomendado?<\/summary>\n        <div>Onde as falhas de arco representam maiores riscos de inc\u00eandio - por exemplo, quartos, fia\u00e7\u00e3o antiga, armazenamento de combust\u00edvel ou salas de TI sens\u00edveis. Coordenar com o RCBO\/MCB.<\/div>\n      <\/details>\n    <\/div>\n  <\/div>\n<\/section>\n<!-- ================== END \u2014 AC HUB ================== -->\n\n<\/div><\/div><\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Kuangya \u2022 Low-Voltage AC Protection (50\/60 Hz) AC Circuit Breakers \u2014 MCB, RCCB, RCBO &#038; AFDD Overview of four protection layers for AC distribution: overcurrent (MCB), residual current (RCCB), the combined RCBO, and arc-fault detection (AFDD). Use the cards below to jump to the right category page. See Categories Quick Compare Home \/ AC Circuit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-742","page","type-page","status-publish","hentry"],"blocksy_meta":{"has_hero_section":"disabled","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/pages\/742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/comments?post=742"}],"version-history":[{"count":3,"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/pages\/742\/revisions"}],"predecessor-version":[{"id":1602,"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/pages\/742\/revisions\/1602"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/pt\/wp-json\/wp\/v2\/media?parent=742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}