{"id":2091,"date":"2022-04-28T17:56:26","date_gmt":"2022-04-28T09:56:26","guid":{"rendered":"https:\/\/www.tosunlux.eu\/?p=2091"},"modified":"2023-03-28T09:54:24","modified_gmt":"2023-03-28T01:54:24","slug":"how-do-you-select-the-right-mcb-or-rcbo","status":"publish","type":"post","link":"https:\/\/www.tosunlux.eu\/pt\/blog\/how-do-you-select-the-right-mcb-or-rcbo\/","title":{"rendered":"Como voc\u00ea seleciona o MCB ou RCBO correto?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" >\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar \u00edndice de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.tosunlux.eu\/pt\/blog\/how-do-you-select-the-right-mcb-or-rcbo\/#What_Is_A_Miniature_Circuit_Breaker\" title=\"O que \u00e9 um disjuntor miniatura?\">O que \u00e9 um disjuntor miniatura?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.tosunlux.eu\/pt\/blog\/how-do-you-select-the-right-mcb-or-rcbo\/#What_Is_RCBO\" title=\"O que \u00e9 RCBO?\">O que \u00e9 RCBO?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.tosunlux.eu\/pt\/blog\/how-do-you-select-the-right-mcb-or-rcbo\/#How_Do_You_Select_The_Right_MCB_Or_RCBO\" title=\"Como voc\u00ea seleciona o MCB ou RCBO correto?\">Como voc\u00ea seleciona o MCB ou RCBO correto?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Os dispositivos MCB e RCBO s\u00e3o dispositivos de prote\u00e7\u00e3o el\u00e9trica usados para proteger os cabos a jusante. Sua sele\u00e7\u00e3o deve ser baseada nos requisitos do sistema de fia\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p>Os disjuntores do tipo B s\u00e3o apropriados para eletrodom\u00e9sticos e tamb\u00e9m podem ser apropriados para aplica\u00e7\u00f5es comerciais leves. Os tipos C e D s\u00e3o projetados para aplica\u00e7\u00f5es industriais e suportam altas correntes de energiza\u00e7\u00e3o. Para garantir a prote\u00e7\u00e3o adequada, o MCB e o RCBO devem atender a todos os padr\u00f5es de seguran\u00e7a e devem ser instalados de acordo com as recomenda\u00e7\u00f5es do fabricante.<\/p>\n\n\n\n<p>Escolher o dispositivo certo para uma instala\u00e7\u00e3o \u00e9 importante. Os MCBs s\u00e3o projetados para fornecer prote\u00e7\u00e3o contra sobrecorrente, curto-circuito e fuga \u00e0 terra, enquanto os RCBOs fornecem prote\u00e7\u00e3o contra sobrecorrente e falhas de aterramento. Os dois aparelhos funcionam de forma diferente, por isso \u00e9 importante saber escolher o correto.&nbsp;<\/p>\n\n\n\n<p>Se voc\u00ea deseja comprar um MCB ou RCBO, podemos ajud\u00e1-lo. Siga este guia para selecionar o MCB ou RCBO correto.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_A_Miniature_Circuit_Breaker\"><\/span><strong>O que \u00e9 um disjuntor miniatura?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O MCB \u00e9 um dos menores tipos de disjuntor el\u00e9trico. Este tipo de disjuntor \u00e9 utilizado em pequenos sistemas el\u00e9tricos e residenciais. \u00c9 pequeno e f\u00e1cil de instalar. A maioria dos disjuntores miniatura usa uma combina\u00e7\u00e3o de mecanismos de disparo t\u00e9rmicos e magn\u00e9ticos.&nbsp;<\/p>\n\n\n\n<p>Este projeto permite que o MCB identifique falhas de sobrecorrente mais rapidamente. O disjuntor desligar\u00e1 a energia em 2,5 milissegundos, mas isso depender\u00e1 do tamanho e do n\u00famero de conex\u00f5es.<\/p>\n\n\n\n<p>O disjuntor opera atrav\u00e9s do disparo t\u00e9rmico ou magn\u00e9tico. O disjuntor t\u00e9rmico tem uma tira bimet\u00e1lica ao seu redor e um sistema magn\u00e9tico composto com um buffer de mola e um plugue magn\u00e9tico de mola. A tira bimet\u00e1lica cont\u00e9m bobinas de aquecimento que geram calor com base no fluxo de corrente. Quando esses dois disjuntores estiverem em opera\u00e7\u00e3o, haver\u00e1 um flashback na eletricidade e um circuito ser\u00e1 desligado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_RCBO\"><\/span><strong>O que \u00e9 RCBO?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>RCBO \u00e9 a abrevia\u00e7\u00e3o de disjuntor de corrente residual. Este disjuntor \u00e9 uma combina\u00e7\u00e3o de MCB e RCCB. Ao contr\u00e1rio dos MCBs, os RCBOs fornecem prote\u00e7\u00e3o contra sobrecarga, curtos-circuitos e correntes de fuga \u00e0 terra. Eles detectam falhas e interrompem o circuito se o fluxo de corrente exceder um determinado n\u00edvel. MCBs e RCBOs s\u00e3o freq\u00fcentemente usados juntos.<\/p>\n\n\n\n<p>Os RCBOs s\u00e3o usados em aplica\u00e7\u00f5es comerciais e industriais para prote\u00e7\u00e3o contra sobrecorrente e faltas \u00e0 terra. Os RCBOs n\u00e3o funcionam em circuitos CC, pois s\u00e3o projetados para circuitos de corrente alternada (CA). RCBOs unipolares s\u00e3o suficientes para uso dom\u00e9stico.<\/p>\n\n\n\n<p>Um RCBO \u00e9 um disjuntor que protege contra sobrecarga e curto-circuito. \u00c9 uma combina\u00e7\u00e3o de MCB e RCCB. Ambos os dispositivos possuem chutes de arco e s\u00e3o projetados para garantir efici\u00eancia e seguran\u00e7a. Como tal, RCBOs s\u00e3o amplamente utilizados em aplica\u00e7\u00f5es comerciais e industriais. Ao contr\u00e1rio dos MCBs, os RCBOs protegem contra correntes de sobrecarga e de curto-circuito.<\/p>\n\n\n\n<p>Os RCBOs tamb\u00e9m s\u00e3o conhecidos como dispositivos de corrente residual. Sua fun\u00e7\u00e3o \u00e9 proteger contra choques el\u00e9tricos e inc\u00eandios. Eles est\u00e3o associados a MCBs em sistemas de distribui\u00e7\u00e3o de energia. Eles protegem contra curtos-circuitos e sobrecarga de cabos, que \u00e9 o risco el\u00e9trico mais comum.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Do_You_Select_The_Right_MCB_Or_RCBO\"><\/span><strong>Como voc\u00ea seleciona o MCB ou RCBO correto?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Na maioria dos casos, o MCB ou RCBO que voc\u00ea escolher deve ser classificado para a corrente que eles suportam. Voc\u00ea tamb\u00e9m deve verificar suas caracter\u00edsticas de viagem e procurar recursos extras e aprova\u00e7\u00f5es de seguran\u00e7a. Sua instala\u00e7\u00e3o el\u00e9trica \u00e9 \u00fanica, ent\u00e3o o MCB ou RCBO certo \u00e9 crucial. Considere estes fatores ao selecionar MCB ou RCBO.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Caracter\u00edsticas de sobrecorrente<\/strong><\/li><\/ul>\n\n\n\n<p>As caracter\u00edsticas de sobrecorrente do Tipo B, C ou D MCB ou RCBO s\u00e3o determinadas pelos tempos de disparo dos dispositivos. Em situa\u00e7\u00f5es do mundo real, \u00e9 importante garantir que os disjuntores disparem dentro de um tempo razo\u00e1vel. Por exemplo, um MCB pode disparar em quarenta segundos com duas vezes sua corrente nominal. Isso permitir\u00e1 que esse breve surto ocorra e evitar\u00e1 danos ao dispositivo.<\/p>\n\n\n\n<p>Um RCBO \u00e9 um disjuntor redimension\u00e1vel. Pode ser usado para proteger um circuito de ilumina\u00e7\u00e3o e fornece prote\u00e7\u00e3o contra choques el\u00e9tricos. Seu principal objetivo \u00e9 interromper o fluxo de energia para um aquecedor de \u00e1gua. Um MCB ou RCBO \u00e9 um dispositivo que monitora o fluxo de corrente em uma linha e interrompe o circuito durante um curto-circuito, sobrecarga ou fuga \u00e0 terra. Esses dispositivos tamb\u00e9m s\u00e3o usados em quadros de distribui\u00e7\u00e3o para prote\u00e7\u00e3o contra sobrecorrente.<\/p>\n\n\n\n<p>Um RCBO ou MCB pode proteger contra choque el\u00e9trico ou inc\u00eandio detectando sobrecorrente. Os MCBs s\u00e3o uma alternativa mais segura aos RCCBs e podem ser usados em resid\u00eancias. Eles fornecem isolamento de circuito, mas s\u00e3o menos dur\u00e1veis que RCBs. Os RCBOs geralmente s\u00e3o projetados para interromper a energia por um curto per\u00edodo de tempo e geralmente s\u00e3o mais seguros de usar.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Aplica\u00e7\u00f5es B\u00e1sicas<\/strong><\/li><\/ul>\n\n\n\n<p>Um disjuntor manual (MCB) \u00e9 um dispositivo el\u00e9trico que dispara em uma situa\u00e7\u00e3o de sobrecarga ou curto-circuito. Causa uma interrup\u00e7\u00e3o do circuito de carga quando dispara. O bot\u00e3o de opera\u00e7\u00e3o moveu-se para a posi\u00e7\u00e3o desligada quando o MCB disparou. Existem v\u00e1rios tipos de MCBs, com capacidades de interrup\u00e7\u00e3o de curto-circuito. Voc\u00ea precisa considerar as aplica\u00e7\u00f5es b\u00e1sicas dos dispositivos Tipo B, C ou D. Os dispositivos do tipo B s\u00e3o usados para aplica\u00e7\u00f5es dom\u00e9sticas. Voc\u00ea pode usar o Tipo C para aplica\u00e7\u00f5es comerciais e industriais. Quanto ao Tipo D, voc\u00ea pode us\u00e1-lo em ind\u00fastrias onde a corrente de partida \u00e9 alta.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Caracter\u00edsticas de disparo do MCB<\/strong><\/li><\/ul>\n\n\n\n<p>Os MCBs t\u00eam dois tipos b\u00e1sicos de disparo, o t\u00e9rmico e o magn\u00e9tico. O desarme t\u00e9rmico tem maior probabilidade de desarmar durante uma sobrecorrente intensa. O disparo magn\u00e9tico interrompe o curto-circuito quando atinge uma ampacidade muito alta para o circuito. As caracter\u00edsticas de disparo dos MCBs s\u00e3o ilustradas graficamente em um gr\u00e1fico de curva de disparo. A regi\u00e3o t\u00e9rmica representa a unidade de disparo bimet\u00e1lica e gradualmente se inclina para baixo como resultado de uma sobrecarga gradual. O MCB tipo B tem uma faixa de disparo de 3 a 5 vezes a corrente nominal. A caracter\u00edstica de trip da curva AD \u00e9 quatro segundos mais lenta que uma curva K. Isso d\u00e1 ao circuito mais tempo para passar por uma alta acelera\u00e7\u00e3o na partida. O tempo de disparo do tipo C \u00e9 de aproximadamente 5 a 10 vezes. A curva D tem uma faixa de disparo de 10 a 20 vezes a corrente nominal.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Deslocamento indesejado<\/strong><\/li><\/ul>\n\n\n\n<p>A coisa mais importante a saber ao selecionar um MCB ou RCBO \u00e9 como solucionar o problema. Voc\u00ea tamb\u00e9m pode verificar a classifica\u00e7\u00e3o de seguran\u00e7a do dispositivo antes de compr\u00e1-lo para evitar trope\u00e7os indesejados.<\/p>\n\n\n\n<p>Ambos os tipos de MCBs e RCBOs podem disparar um circuito quando ocorre uma sobrecorrente. No entanto, um RCBO pode n\u00e3o desarmar uma sobrecorrente se detectar uma baixa tens\u00e3o ou uma condi\u00e7\u00e3o de sobrecorrente. Um MCB que protege contra ambos os tipos de sobrecargas e curtos-circuitos \u00e9 uma boa ideia. Um RCBO pode ser muito caro e n\u00e3o fornecer o mesmo n\u00edvel de prote\u00e7\u00e3o. Para evitar disparos indesejados, voc\u00ea precisa usar um MCB Tipo B. O tipo B \u00e9 o melhor para evitar disparos indesejados.<\/p>","protected":false},"excerpt":{"rendered":"<p>The MCB and RCBO devices are electrical protection devices used to protect downstream cables. Their selection should be based on the requirements of the wiring system.&nbsp; Type B circuit breakers are appropriate for domestic appliances and may also be appropriate for light commercial applications. Type C and D are designed for industrial applications and will withstand high inrush currents. To ensure proper protection, the MCB and RCBO must meet all safety standards and must be installed according to manufacturer recommendations. Choosing the right device for an installation is important. MCBs are designed to provide protection against overcurrent, short circuit, and earth leakage, while RCBOs provide protection against both overcurrent and earth faults. The two devices work differently, so it is important to know how to choose the correct one.&nbsp; If you want to buy an MCB or RCBO, we can help you. Follow this guide to select the right MCB or RCBO.&nbsp; What Is A Miniature Circuit Breaker? The MCB is one of the smallest types of the electrical breaker. This type of breaker is used in small electrical systems and for homes. It is small and easy to install. Most miniature circuit breakers use a combination of thermal and magnetic tripping mechanisms.&nbsp; This design allows the MCB to identify overcurrent faults more quickly. The breaker will shut off the power within 2.5 milliseconds, but this will depend on the size and number of fittings. The breaker operates through the thermal or magnetic trip. The thermal breaker has a bimetal strip surrounding it and a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5648,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-2091","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Do You Select The Right MCB Or RCBO? - TOSUNlux Official Site - Electrical Circuit Breaker Manufacturer in China<\/title>\n<meta name=\"description\" content=\"The MCB and RCBO devices are electrical protection devices used to protect downstream cables. 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