{"id":3558,"date":"2026-08-06T14:01:16","date_gmt":"2026-08-06T14:01:16","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=3558"},"modified":"2026-08-06T14:01:18","modified_gmt":"2026-08-06T14:01:18","slug":"eaton-corporation-bd1520-duplex-15-20a-circuit-breaker-a-comprehensive-review","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/pt\/blog\/eaton-corporation-bd1520-duplex-15-20a-circuit-breaker-a-comprehensive-review\/","title":{"rendered":"Eaton Corporation BD1520 Disjuntor Duplex 15\/20A: Uma Revis\u00e3o Abrangente"},"content":{"rendered":"<p>Quando um propriet\u00e1rio em Chicago solicitou a instala\u00e7\u00e3o de um novo circuito para seu escrit\u00f3rio, o eletricista abriu a caixa de fus\u00edveis apenas para descobrir que todos os slots estavam ocupados. A abordagem antiga para lidar com essa situa\u00e7\u00e3o inclu\u00eda a instala\u00e7\u00e3o de um subpainel ou a atualiza\u00e7\u00e3o do fornecimento el\u00e9trico. No entanto, em vez de empregar os m\u00e9todos tradicionais neste caso, o eletricista usou um <strong>disjuntor Eaton BD1520<\/strong>. O disjuntor duplex BD1520 possibilita a instala\u00e7\u00e3o de 2 circuitos independentes de 15 e 20 amp\u00e8res em um slot de caixa de fus\u00edveis de uma polegada, oferecendo assim uma nova solu\u00e7\u00e3o para um problema de espa\u00e7o. O propriet\u00e1rio conseguiu obter o resultado necess\u00e1rio, e o projeto foi conclu\u00eddo de forma mais econ\u00f4mica do que as instala\u00e7\u00f5es comuns de pain\u00e9is. Muitos eletricistas conhecem o disjuntor DB1502. O conhecimento completo deste dispositivo, suas vantagens e restri\u00e7\u00f5es, bem como seu custo e possibilidade de uso em substitui\u00e7\u00e3o a outros dispositivos, permitir\u00e1 que a pessoa que decide instalar um novo circuito economize uma quantia significativa de dinheiro.<\/p>\n<blockquote><p><strong>Resumo:<\/strong> O Eaton BD1520 \u00e9 um disjuntor de configura\u00e7\u00e3o duplex (disjuntor tandem) que mede 1 polegada de tamanho. Seu uso \u00e9 recomend\u00e1vel para centros de carga da s\u00e9rie Eaton BR. Os disjuntores BD1520 s\u00e3o fabricados para ter um disjuntor monopolar de 15 amp\u00e8res e um disjuntor monopolar de 20 amp\u00e8res, todos encapsulados em uma unidade que utiliza um espa\u00e7o no painel. O disjuntor BD1520 \u00e9 categorizado como n\u00e3o-CTL (significando que n\u00e3o possui o recurso de rejei\u00e7\u00e3o que impede o uso em pain\u00e9is n\u00e3o compat\u00edveis com tandem). Portanto, ele pode ser usado em qualquer slot do painel, independentemente de ser designado para disjuntores tandem ou n\u00e3o, desde que a classifica\u00e7\u00e3o do painel e da barra coletora seja devidamente atendida.<\/p><\/blockquote>\n<h2>O que o Eaton BD1520 Realmente \u00c9: As Especifica\u00e7\u00f5es Que o Definem<\/h2>\n<p>O Eaton BD1520 n\u00e3o \u00e9 apenas um disjuntor de 15 AMP e um disjuntor de 20 AMP colados juntos. \u00c9 um dispositivo projetado que tamb\u00e9m \u00e9 listado pela UL com caracter\u00edsticas el\u00e9tricas e mec\u00e2nicas espec\u00edficas. Algumas dessas caracter\u00edsticas afetam onde ele pode ser usado e o que pode proteger. As especifica\u00e7\u00f5es fornecidas na tabela abaixo precisam ser verificadas por um eletricista, empreiteiro ou propriet\u00e1rio informado antes de comprar ou usar o dispositivo.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3560\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/08\/What-the-Eaton-BD1520-Actually-Is-The-Specifications-That-Define-It.webp\" alt=\"O que o Eaton BD1520 Realmente \u00c9: As Especifica\u00e7\u00f5es Que o Definem\" width=\"1448\" height=\"1086\" \/><\/p>\n<table>\n<thead>\n<tr>\n<th>Especifica\u00e7\u00e3o<\/th>\n<th>Valor do Eaton BD1520<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Fabricante e s\u00e9rie<\/strong><\/td>\n<td>Eaton \u2014 s\u00e9rie BR (compat\u00edvel com todos os centros de carga Eaton BR e pain\u00e9is legados Cutler-Hammer, Bryant e Westinghouse BR)<\/td>\n<\/tr>\n<tr>\n<td><strong>Tipo de disjuntor<\/strong><\/td>\n<td>Duplex \/ tandem \u2014 dois disjuntores monopolares independentes em um \u00fanico corpo de 1 polegada<\/td>\n<\/tr>\n<tr>\n<td><strong>Configura\u00e7\u00e3o dos polos<\/strong><\/td>\n<td>Um monopolar de 15 amp\u00e8res, um monopolar de 20 amp\u00e8res<\/td>\n<\/tr>\n<tr>\n<td><strong>Classifica\u00e7\u00e3o de tens\u00e3o<\/strong><\/td>\n<td>120\/240 V CA<\/td>\n<\/tr>\n<tr>\n<td><strong>Capacidade de interrup\u00e7\u00e3o<\/strong><\/td>\n<td>10 kAIC (Capacidade de Interrup\u00e7\u00e3o de 10.000 Amperes)<\/td>\n<\/tr>\n<tr>\n<td><strong>Listagem UL<\/strong><\/td>\n<td>UL 489 \u2014 listado para prote\u00e7\u00e3o contra sobrecorrente de circuito ramal<\/td>\n<\/tr>\n<tr>\n<td><strong>Status CTL<\/strong><\/td>\n<td>N\u00e3o-CTL \u2014 n\u00e3o possui o recurso de rejei\u00e7\u00e3o que limita disjuntores tandem a slots designados para tandem. Pode ser instalado em qualquer slot em um painel BR, mas a carga total do painel e a classifica\u00e7\u00e3o da barra coletora ainda devem ser respeitadas conforme o NEC e as instru\u00e7\u00f5es do fabricante do painel.<\/td>\n<\/tr>\n<tr>\n<td><strong>Faixa de bitola do fio<\/strong><\/td>\n<td>#14\u2013#4 AWG cobre ou alum\u00ednio (os terminais de carga aceitam uma ampla gama de tamanhos de condutores)<\/td>\n<\/tr>\n<tr>\n<td><strong>Dimens\u00f5es<\/strong><\/td>\n<td>Largura padr\u00e3o de 1 polegada por corpo; compat\u00edvel com todos os centros de carga Eaton BR<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Onde o BD1520 Pertence \u2014 e Onde N\u00e3o Pertence<\/h2>\n<p>O Eaton BD1520 \u00e9 especificamente projetado para um determinado problema: um painel da s\u00e9rie BR que est\u00e1 cheio, mas ainda possui energia dispon\u00edvel para acomodar mais circuitos de 120 volts. O cen\u00e1rio t\u00edpico \u00e9 uma casa antiga com um painel BR de 100 amperes ou 150 amperes que precisa ser equipado para um novo circuito que atenda a um escrit\u00f3rio dom\u00e9stico, oficina na garagem, v\u00e1rias tomadas na cozinha ou at\u00e9 mesmo uma moderniza\u00e7\u00e3o do banheiro \u2014 tudo isso enquanto os c\u00e1lculos de amperagem mostram que essa carga adicional estar\u00e1 bem dentro dos limites permitidos deste painel. A venda do BD1520 proporcionaria dois novos circuitos \u2014 15 amperes e 20 amperes \u2014 que n\u00e3o necessitam de um \u00fanico slot livre dentro do painel. Em situa\u00e7\u00f5es em que o cliente precisa instalar apenas um ou dois circuitos, o BD1520 \u00e9 a escolha mais econ\u00f4mica, pois uma unidade custa $25-50 e a instala\u00e7\u00e3o \u00e9 simples o suficiente para que um eletricista competente a complete em tempo razo\u00e1vel.<\/p>\n<p>O BD1520 possui algumas limita\u00e7\u00f5es que todos os instaladores devem estar cientes. Em primeiro lugar, ele n\u00e3o tem a capacidade de fornecer uma tens\u00e3o de 240 volts. O disjuntor \u00e9 projetado com os dois polos conectados \u00e0 mesma fase da barra coletora, o que significa que a tens\u00e3o gerada \u00e9 igual a 0 volts. Qualquer aparelho de 240 volts, como secadora, aquecedor de \u00e1gua, carregador de ve\u00edculo el\u00e9trico ou aquecedor de rodap\u00e9, requer um disjuntor bipolar que se conecta a duas barras coletoras em slots adjacentes. O BD1520 s\u00f3 pode operar no n\u00edvel de 120 volts. Al\u00e9m disso, este dispositivo n\u00e3o aumenta a capacidade total de carga do painel. Se novos circuitos forem adicionados a um painel existente que j\u00e1 atingiu a capacidade m\u00e1xima, o disjuntor principal disparar\u00e1 ou a barra coletora poder\u00e1 sobrecarregar, levando a um risco de inc\u00eandio. Portanto, \u00e9 essencial realizar c\u00e1lculos em conformidade com o Artigo 220 do NEC antes de adicionar qualquer novo circuito, mesmo quando disjuntores tandem s\u00e3o usados. Adicionalmente, o BD1520 n\u00e3o \u00e9 compat\u00edvel com pain\u00e9is da s\u00e9rie Eaton CH, pois s\u00f3 se encaixa em quadros da s\u00e9rie BR. A etiqueta no painel \u00e9 a autoridade final, e se o modelo do disjuntor n\u00e3o estiver listado para o painel, ele n\u00e3o deve ser instalado. Para ajuda com o c\u00e1lculo de carga que determina se um painel pode aceitar circuitos adicionais, nosso guia sobre <a href=\"https:\/\/huyuglobal.com\/pt\/blog\/what-size-circuit-breaker-do-i-need\/\">qual tamanho de disjuntor voc\u00ea precisa<\/a> percorre o processo baseado no NEC.<\/p>\n<h2>Como o BD1520 se Compara com as Alternativas<\/h2>\n<p>O <strong>Eaton BD1520<\/strong> \u00e9 uma das v\u00e1rias solu\u00e7\u00f5es para adicionar circuitos a um painel cheio, e a tabela abaixo o compara com as alternativas mais comuns nos crit\u00e9rios que importam em uma instala\u00e7\u00e3o residencial real.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3561\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/08\/How-the-BD1520-Compares-with-the-Alternatives.webp\" alt=\"Como o BD1520 se Compara com as Alternativas\" width=\"1448\" height=\"1086\" \/><\/p>\n<table>\n<thead>\n<tr>\n<th>Solu\u00e7\u00e3o<\/th>\n<th>Custo (Aproximado, Incluindo Instala\u00e7\u00e3o)<\/th>\n<th>Circuitos Adicionados<\/th>\n<th>Capaz de 240 V?<\/th>\n<th>Melhor Para<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Disjuntor duplex Eaton BD1520<\/strong><\/td>\n<td>$100\u2013$250 (disjuntor + m\u00e3o de obra do eletricista para instala\u00e7\u00e3o)<\/td>\n<td>Dois circuitos de 120 V (um de 15 A, um de 20 A) a partir de um \u00fanico slot no painel<\/td>\n<td>N\u00e3o<\/td>\n<td>Um painel que est\u00e1 fisicamente cheio, mas tem capacidade el\u00e9trica para algumas cargas adicionais de 120 V<\/td>\n<\/tr>\n<tr>\n<td><strong>Disjuntor tandem padr\u00e3o Eaton BR (ex.: BR1515, BR2020)<\/strong><\/td>\n<td>$80\u2013$200 instalado<\/td>\n<td>Dois circuitos de 120 V com a mesma amperagem (ambos 15 A ou ambos 20 A) a partir de um \u00fanico slot no painel<\/td>\n<td>N\u00e3o<\/td>\n<td>Um painel que necessita de dois circuitos com a mesma classifica\u00e7\u00e3o, como dois circuitos de ilumina\u00e7\u00e3o de 15 A ou dois circuitos de tomadas de 20 A<\/td>\n<\/tr>\n<tr>\n<td><strong>Novo disjuntor bipolar (se houver um slot dispon\u00edvel)<\/strong><\/td>\n<td>$100\u2013$300 instalado<\/td>\n<td>Um circuito de 240 V ou dois circuitos de 120 V em fases opostas<\/td>\n<td>Sim<\/td>\n<td>Um painel que possui slots vazios e que necessita de um circuito para aparelho de 240 V ou circuitos adicionais de 120 V<\/td>\n<\/tr>\n<tr>\n<td><strong>Instala\u00e7\u00e3o de subpainel<\/strong><\/td>\n<td>$800\u2013$2,000 instalado<\/td>\n<td>6\u201312 novos circuitos, dependendo do tamanho do subpainel<\/td>\n<td>Yes (if a double\u2011pole feeder breaker is used)<\/td>\n<td>A panel that is physically full and that requires multiple additional circuits beyond what tandem breakers can provide<\/td>\n<\/tr>\n<tr>\n<td><strong>Full panel upgrade (100 A to 200 A)<\/strong><\/td>\n<td>$3,500\u2013$6,500 installed<\/td>\n<td>A new 40\u2011space panel with capacity for all existing and future circuits<\/td>\n<td>Sim<\/td>\n<td>A panel that is electrically overloaded, obsolete, or hazardous; a home that is adding major loads (EV charger, heat pump, hot tub)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Installation and Code Compliance: What the Electrician Must Verify<\/h2>\n<p>Installing the <strong>Eaton BD1520<\/strong> is a straightforward job for a licensed electrician, but it requires the same safety procedures and the same code compliance as any other breaker installation. The electrician must verify that the panel is an Eaton BR\u2011series load centre (or a compatible legacy brand), that the panel&#8217;s load calculation confirms that the additional circuits will not exceed the panel&#8217;s or the bus bar&#8217;s rating, that the breaker is seated correctly on the bus bar\u2014the BD1520 clips onto the BR bus bar like any standard BR breaker\u2014and that the load wires are correctly sized for the circuit&#8217;s amperage (14 AWG copper for the 15\u2011A circuit, 12 AWG copper for the 20\u2011A circuit) and are torqued to the specification printed on the breaker body. The electrician must also ensure that the circuits are correctly labelled on the panel directory, and that the installation is permitted and inspected per the local code requirements. A BD1520 that is installed in a panel that is not listed for it, or that is installed without a load calculation that confirms the panel&#8217;s capacity, is a code violation and a fire risk\u2014and the breaker itself is not the hazard. The hazard is the installation that exceeds the panel&#8217;s design limits. For a deeper understanding of the certification that every breaker in a residential panel must carry, our article on <a href=\"https:\/\/huyuglobal.com\/pt\/blog\/what-is-ul-489-breakers\/\">quais s\u00e3o os disjuntores UL 489<\/a> explains the testing and listing requirements that the BD1520, and every other breaker in the panel, must meet.<\/p>\n<h2>What the BD1520 Costs and Where to Buy It<\/h2>\n<p>The Eaton BD1520 is a product that one can get easily from various sources such as electrical supply houses, Home Depot and Lowe&#8217;s, and online electrical distributors. The price of the breaker by itself is between $25 and $50, depending on the store or the amount purchased. The cost of installation, along with the labor costs to install it, can bring the total cost from $100 to $250. The price of BD1520 is comparable with other tandem and duplex breakers of the same rating. If a homeowner wants to add two circuits to the full panel, the cost of installation of BD1520 would be around 5% &#8211; 15% of the complete cost of full panel replacement. Thus, it would be very attractive economically for those homeowners who have their old panels still in good condition and quite capable of taking new loads. As for the electrical contracting community and those who are engaged in panel-making, HUYU offers all types of circuit breakers &#8211; MCBs, RCBOs, and DC Breakers &#8211; that comply with international standards (IEC, UL, TUV, CE).For help selecting the correct breaker for any circuit, our guide on <a href=\"https:\/\/huyuglobal.com\/pt\/blog\/what-size-circuit-breaker-do-i-need\/\">qual tamanho de disjuntor voc\u00ea precisa<\/a> explica o processo de dimensionamento baseado no NEC.<\/p>\n<h2>Perguntas Frequentes<\/h2>\n<h3>Can you replace a 15 amp breaker with a 20amp?<\/h3>\n<p>No, you should always check that the circuit wiring is rated for 20 amps. The installation of a 15-amp circuit breaker is usually done using the 14 AWG copper wire rated to carry that much load. The application of a 20 amp circuit breaker utilizing the 14-gauge is breaking the code as well as posing a danger of fire due to overheating of the wire not in time for the circuit breaker to work. A 20-amp breaker can work only when installed with 12 AWG or even thicker wire.<\/p>\n<h3>Which breakers are interchangeable with Eaton?<\/h3>\n<p>The BR-Series breakers by Eaton are applicable with their BR load centers and the past models of Cutler Hammer, Bryant, and Westinghouse BR-series panels. The CH-series breakers can work with Eaton&#8217;s CH load centers along with older models of Cutler Hammer CH-series panel boards. The BR breakers and CH breakers are not interchangeable with the other types, nor are Eaton breakers certified for use in GE, Siemens, or Square D panel boards if they aren&#8217;t classified as such under UL. The panel label indicates which breakers to utilize.<\/p>\n<h3>What is a BD circuit breaker?<\/h3>\n<p>The BD circuit breaker which is produced by Eaton BR series is basically made up of two separate single pole breakers of different amperage but brought together inside a single inch-sized frame. The designation BD is indicative of a non CTL tandem breaker which is compatible with any slot in a compatible BR panel. The BD 1520 model is one example of this device and has a pole rated 15 amperes and another rated 20 amperes.<\/p>\n<h3>What is the lawsuit about Eaton arc fault breakers?<\/h3>\n<p>A class\u2011action lawsuit filed against Eaton in 2019 alleged that certain <strong>Eaton AFCI (Arc Fault Circuit Interrupter) breakers<\/strong> were defective, causing nuisance tripping and failing to detect actual arc faults. Eaton denied the allegations but agreed to a settlement in 2022 that provided compensation to affected consumers. The lawsuit involved specific AFCI breaker models and does not affect the standard thermal\u2011magnetic breakers such as the BD1520. A homeowner who is purchasing an Eaton AFCI breaker should verify the model number and the current product listing on the <a href=\"https:\/\/www.eaton.com\" rel=\"nofollow noopener\" target=\"_blank\">Eaton<\/a> website to ensure that the product is the latest design and is covered by the manufacturer&#8217;s current warranty.<\/p>\n<h2>Refer\u00eancias<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.eaton.com\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 BR Series Duplex\/Tandem Circuit Breakers, including BD1520<\/a>. Manufacturer&#8217;s official product page with specifications, compatibility charts, and installation guidance.<\/li>\n<li><a href=\"https:\/\/www.homedepot.com\" rel=\"nofollow noopener\" target=\"_blank\">Home Depot \u2014 Eaton BD1520 Duplex Circuit Breaker<\/a>. Retailer product listing with price, customer reviews, and compatibility information.<\/li>\n<li><a href=\"https:\/\/www.ul.com\" rel=\"nofollow noopener\" target=\"_blank\">UL 489 \u2014 Standard for Molded\u2011Case Circuit Breakers<\/a>. The safety standard to which the BD1520 is listed, governing its overcurrent protection, interrupting capacity, and mechanical endurance.<\/li>\n<li><a href=\"https:\/\/www.nfpa.org\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 \u2014 C\u00f3digo El\u00e9trico Nacional (NEC)<\/a>. The electrical installation code that governs the use of tandem breakers, the load calculation that must precede their installation, and the panel\u2011listing requirements that ensure a safe installation.<\/li>\n<\/ul>\n<p>O <strong>Eaton BD1520 duplex circuit breaker<\/strong> is a targeted, practical, and cost\u2011effective solution for the homeowner who needs to add one or two 120\u2011volt circuits to a BR\u2011series panel that is physically full but electrically capable. It\u2019s not a one-for-all solution. It doesn\u2019t deliver 240 volts. It doesn\u2019t add to the total ampacity of the panel. It doesn\u2019t substitute a panel in bad shape or outdated. Yet where the BD1520 shines is when we talk about its specific use\u2014aimed at modern BR panels with some additional 120-volt loads, and the budget not sophisticated enough for a complete service upgrade. For a savvy homeowner willing to get the installation done by a qualified electrician, this is the right and the safe way to get what he needs at the fraction of the cost. HUYU can produce any circuit breakers and other protecting devices such as MCBs, RCBOs, and DC-rated breakers all over the world as long as the right circuit breaker is obtained for the right panel secured in accordance with corresponding regulations.<\/p>","protected":false},"excerpt":{"rendered":"<p>When a homeowner in Chicago asked for a new circuit to be installed for his office, the electrician opened the fuse box only to discover that all slots were occupied. The old approach for dealing with such a situation included installing a subpanel, or upgrading the electrical supply. Instead of employing the traditional methods in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3559,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/posts\/3558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/comments?post=3558"}],"version-history":[{"count":1,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/posts\/3558\/revisions"}],"predecessor-version":[{"id":3562,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/posts\/3558\/revisions\/3562"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/media\/3559"}],"wp:attachment":[{"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/media?parent=3558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/categories?post=3558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huyuglobal.com\/pt\/wp-json\/wp\/v2\/tags?post=3558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}