{"id":7280,"date":"2026-08-10T19:31:29","date_gmt":"2026-08-10T19:31:29","guid":{"rendered":"https:\/\/gog-elec.com\/?p=7280"},"modified":"2026-08-10T19:31:31","modified_gmt":"2026-08-10T19:31:31","slug":"electrical-receptacles-come-in-which-two-basic-varieties","status":"publish","type":"post","link":"https:\/\/gog-elec.com\/pt\/blog\/electrical-receptacles-come-in-which-two-basic-varieties\/","title":{"rendered":"Tomadas El\u00e9tricas V\u00eam em Quais Duas Variedades B\u00e1sicas?"},"content":{"rendered":"<p>Quer voc\u00ea esteja refazendo a fia\u00e7\u00e3o da sua casa, trocando uma tomada ou apenas curioso sobre as v\u00e1rias tomadas el\u00e9tricas no ambiente, pode se interessar em conhecer os dois tipos diferentes de tomadas el\u00e9tricas. Embora pare\u00e7a uma pergunta de quiz, \u00e9 importante saber essa informa\u00e7\u00e3o ao comprar tomadas el\u00e9tricas, planejar reformas na casa ou determinar a seguran\u00e7a da sua casa antiga. De modo geral, todas as tomadas el\u00e9tricas pertencem a duas fam\u00edlias b\u00e1sicas, e uma vez que voc\u00ea compreenda essas fam\u00edlias, ser\u00e1 bastante f\u00e1cil navegar pelo complexo universo das tomadas el\u00e9tricas. Em outras palavras, o documento responder\u00e1 perguntas comuns sobre a classifica\u00e7\u00e3o dos dois tipos diferentes de tomadas de energia el\u00e9trica, sua apar\u00eancia, pre\u00e7o relativo e outros fatores relevantes.<\/p>\n<blockquote><p><strong>Resposta r\u00e1pida:<\/strong> Tomadas el\u00e9tricas (frequentemente chamadas de pontos el\u00e9tricos, tomadas de parede ou soquetes) est\u00e3o dispon\u00edveis em apenas dois tipos principais: tomada com aterramento e tomada sem aterramento. Uma tomada sem aterramento de dois pinos \u00e9 referida como tipo Nema 1-15, e a tomada com aterramento de tr\u00eas pinos \u00e9 chamada de tipo Nema 5-15. Tomadas com aterramento s\u00e3o tomadas padr\u00e3o de tr\u00eas pinos que possuem um pino redondo adicional para aterramento. Tomadas com aterramento se dividem em v\u00e1rias categorias baseadas tanto na voltagem quanto na amperagem, como tomadas de 120V (15A e 20A).<\/p><\/blockquote>\n<h2>As Duas Variedades B\u00e1sicas de Recept\u00e1culos El\u00e9tricos<\/h2>\n<p>A pergunta \u201crecept\u00e1culos el\u00e9tricos v\u00eam em quais duas variedades b\u00e1sicas\u201d \u00e9 respondida de duas formas comuns, e ambas est\u00e3o corretas dependendo do contexto:<\/p>\n<h3>Resposta 1: Pelo Aterramento \u2014 Sem aterramento vs. Com aterramento<\/h3>\n<table>\n<thead>\n<tr>\n<th>Variedade<\/th>\n<th>Pinos<\/th>\n<th>Tipo NEMA<\/th>\n<th>Status em Casas Modernas<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Recept\u00e1culo sem aterramento<\/strong><\/td>\n<td>2 pinos<\/td>\n<td>NEMA 1-15<\/td>\n<td>Obsoleto \u2014 encontrado apenas em casas antigas<\/td>\n<\/tr>\n<tr>\n<td><strong>Recept\u00e1culo com aterramento<\/strong><\/td>\n<td>3 pinos<\/td>\n<td>NEMA 5-15 (e 5-20)<\/td>\n<td>Padr\u00e3o \u2014 exigido para novas constru\u00e7\u00f5es<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Possui duas ranhuras planas, por isso a tomada sem aterramento de dois pinos \u00e9 conhecida como tomada Tipo A. A tomada com aterramento de tr\u00eas pinos, tamb\u00e9m chamada de tomada Tipo B, possui um pino redondo de aterramento al\u00e9m das duas ranhuras planas para conex\u00e3o segura ao sistema de aterramento do edif\u00edcio. No caso dos c\u00f3digos de constru\u00e7\u00e3o recentes, h\u00e1 a obriga\u00e7\u00e3o de ter tomadas com aterramento em todos os locais de novos edif\u00edcios, bem como a atualiza\u00e7\u00e3o de quaisquer tomadas sem aterramento durante reformas em um ambiente, em caso de inspe\u00e7\u00e3o.<\/p>\n<h3>Resposta 2: Pela Voltagem \u2014 120V vs. 240V<\/h3>\n<table>\n<thead>\n<tr>\n<th>Variedade<\/th>\n<th>Voltagem<\/th>\n<th>Usos Comuns<\/th>\n<th>Amperagem T\u00edpica<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Padr\u00e3o \/ uso geral<\/strong><\/td>\n<td>120V<\/td>\n<td>L\u00e2mpadas, TVs, telefones, computadores, pequenos eletrodom\u00e9sticos de cozinha<\/td>\n<td>15A ou 20A<\/td>\n<\/tr>\n<tr>\n<td><strong>Uso pesado \/ eletrodom\u00e9sticos<\/strong><\/td>\n<td>240V<\/td>\n<td>Secadoras, fog\u00f5es, unidades de ar condicionado, carregadores EV, soldadores<\/td>\n<td>15A\u201350A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tomadas de 120 volts alimentam a grande maioria dos dispositivos dom\u00e9sticos. Tomadas de 240 volts (com seus layouts distintos de pinos) alimentam grandes eletrodom\u00e9sticos que necessitam do dobro de pot\u00eancia. Se voc\u00ea quiser entender a diferen\u00e7a em detalhes, nosso guia sobre <a href=\"https:\/\/gog-elec.com\/pt\/blog\/difference-between-120v-and-240v-outlets\/\">a diferen\u00e7a entre tomadas 120V e 240V<\/a> explica com exemplos.<\/p>\n<hr \/>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7282\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Different-Names-for-the-Same-Thing-Outlet-Socket-Receptacle.webp\" alt=\"Nomes Diferentes para a Mesma Coisa: Tomada, Soquete, Recept\u00e1culo\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Nomes Diferentes para a Mesma Coisa: Tomada, Soquete, Recept\u00e1culo<\/h2>\n<p>Antes de prosseguirmos com nossa discuss\u00e3o, vamos esclarecer alguns termos, pois o mesmo dispositivo possui m\u00faltiplos nomes \u2014 todos corretos:<\/p>\n<ul>\n<li>Recept\u00e1culo el\u00e9trico \u2014 o termo t\u00e9cnico oficial usado por eletricistas e c\u00f3digos escritos<\/li>\n<li>Tomada de energia ou tomada el\u00e9trica \u2014 o termo comum no ingl\u00eas do Reino Unido e na maior parte da \u00c1sia<\/li>\n<li>Tomada de parede ou simplesmente tomada \u2014 o termo usado na l\u00edngua americana ao falar sobre este dispositivo<\/li>\n<li>Ponto de energia \u2014 um termo usado pelos australianos<\/li>\n<li>Tomada de plugue \u2014 outro termo popular usado no ingl\u00eas do Reino Unido<\/li>\n<\/ul>\n<p>Estritamente falando, \u201crecept\u00e1culo\u201d \u00e9 o dispositivo fixado na parede que recebe o plugue, enquanto \u201ctomada\u201d significa o local da fonte de energia (que tamb\u00e9m pode implicar a lumin\u00e1ria). No entanto, na linguagem falada, eles s\u00e3o usados de forma intercambi\u00e1vel, assim como \u201csocket\u201d e \u201coutlet\u201d. Para uma an\u00e1lise mais detalhada da terminologia e anatomia, veja nosso artigo sobre <a href=\"https:\/\/gog-elec.com\/pt\/blog\/what-is-an-electrical-receptacle\/\">o que \u00e9 um recept\u00e1culo el\u00e9trico<\/a>.<\/p>\n<hr \/>\n<h2>Como os recept\u00e1culos s\u00e3o classificados: o sistema NEMA<\/h2>\n<p>O sistema de classifica\u00e7\u00e3o usado para todos os recept\u00e1culos norte-americanos foi desenvolvido pela National Electrical Manufacturers Association (NEMA) e possui um c\u00f3digo para classifica\u00e7\u00e3o. Por exemplo, o c\u00f3digo 5-15R \u00e9 dividido da seguinte forma:<\/p>\n<ul>\n<li>O primeiro d\u00edgito (ou seja, 5) indica o tipo de fam\u00edlia de configura\u00e7\u00e3o e mostra a voltagem e o aterramento.<\/li>\n<li>O segundo d\u00edgito (ou seja, 15) define a classifica\u00e7\u00e3o de amperagem.<\/li>\n<li>A letra denota o tipo de recept\u00e1culo (R) em oposi\u00e7\u00e3o ao plugue (P).<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>C\u00f3digo NEMA<\/th>\n<th>Voltagem<\/th>\n<th>Amperagem<\/th>\n<th>Pinos<\/th>\n<th>Uso comum<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1-15R<\/td>\n<td>120V<\/td>\n<td>15A<\/td>\n<td>2<\/td>\n<td>Tomadas antigas sem aterramento (obsoletas)<\/td>\n<\/tr>\n<tr>\n<td>5-15R<\/td>\n<td>120V<\/td>\n<td>15A<\/td>\n<td>3<\/td>\n<td><strong>Tomada residencial padr\u00e3o<\/strong><\/td>\n<\/tr>\n<tr>\n<td>5-20R<\/td>\n<td>120V<\/td>\n<td>20A<\/td>\n<td>3<\/td>\n<td>Cozinhas, banheiros, lavanderias<\/td>\n<\/tr>\n<tr>\n<td>6-15R<\/td>\n<td>240V<\/td>\n<td>15A<\/td>\n<td>3<\/td>\n<td>Ar-condicionado de janela, pequenos equipamentos<\/td>\n<\/tr>\n<tr>\n<td>6-20R<\/td>\n<td>240V<\/td>\n<td>20A<\/td>\n<td>3<\/td>\n<td>Compressores de ar, ferramentas el\u00e9tricas<\/td>\n<\/tr>\n<tr>\n<td>14-30R<\/td>\n<td>120\/240V<\/td>\n<td>30A<\/td>\n<td>4<\/td>\n<td>Secadoras el\u00e9tricas<\/td>\n<\/tr>\n<tr>\n<td>14-50R<\/td>\n<td>120\/240V<\/td>\n<td>50A<\/td>\n<td>4<\/td>\n<td>Fog\u00f5es, conex\u00f5es para RV, carregadores EV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Se voc\u00ea quiser saber mais sobre os diferentes estilos usados em tomadas, d\u00ea uma olhada em nossa postagem sobre tipos de tomadas el\u00e9tricas, pois ela discute tanto os tipos NEMA usados na Am\u00e9rica do Norte quanto outros tipos internacionais de plugues.<\/p>\n<hr \/>\n<h2>Recept\u00e1culos 120V: As tomadas do dia a dia<\/h2>\n<p>Estas s\u00e3o as tomadas que voc\u00ea usa todos os dias. Todas s\u00e3o aterradas (exceto o tipo obsoleto de 2 pinos) e classificadas para 120 volts.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7283\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/120V-Receptacles-The-Everyday-Outlets.webp\" alt=\"Recept\u00e1culos 120V: As tomadas do dia a dia\" width=\"1448\" height=\"1086\" \/><\/p>\n<h3>NEMA 5-15R \u2014 A tomada padr\u00e3o de 15A<\/h3>\n<ul>\n<li>Apar\u00eancia: Dois slots verticais (um deles um pouco mais largo) e um orif\u00edcio redondo abaixo<\/li>\n<li>Classifica\u00e7\u00e3o el\u00e9trica: 120 volts, 15 amperes (consumo de energia aprox. 1800 watts)<\/li>\n<li>Aplica\u00e7\u00e3o: Normalmente montada em quartos, salas, corredores e outros tipos de circuitos de uso geral<\/li>\n<li>Tipo: Este tipo de tomada \u00e9 o mais comum, que as pessoas geralmente imaginam quando pensam em uma tomada de parede<\/li>\n<\/ul>\n<h3>NEMA 5-20R \u2014 A tomada de 20A<\/h3>\n<ul>\n<li>Apar\u00eancia: Semelhante \u00e0 5-15R, exceto que um dos recept\u00e1culos tem a forma de um T deitado.<\/li>\n<li>Classifica\u00e7\u00e3o: Classificada para 120 Volts, 20 Amperes (suporta cerca de 2.400 watts).<\/li>\n<li>Instala\u00e7\u00e3o: Usada em cozinhas, banheiros, lavanderias, garagens ou em qualquer outro lugar com corrente de 20 Amperes.<\/li>\n<li>Compatibilidade: Compat\u00edvel com 15 Amperes.<\/li>\n<\/ul>\n<h3>NEMA 1-15R \u2014 A antiga tomada de 2 pinos<\/h3>\n<ul>\n<li>Caracter\u00edstica: Simplesmente duas aberturas verticais, sem nenhum orif\u00edcio circular.<\/li>\n<li>Capacidade: 120V; m\u00ednimo de 15A, mas n\u00e3o possui aterramento.<\/li>\n<li>Presente em: Casas constru\u00eddas antes dos anos 60.<\/li>\n<li>Aten\u00e7\u00e3o: N\u00e3o \u00e9 seguro para conectar computadores, dispositivos ou m\u00e1quinas, e deve ser complementado.<\/li>\n<\/ul>\n<p>Nossa compara\u00e7\u00e3o de <a href=\"https:\/\/gog-elec.com\/pt\/blog\/2-prong-vs-3-prong-outlet\/\">tomadas de 2 pinos vs. 3 pinos<\/a> explica as diferen\u00e7as de seguran\u00e7a em detalhes.<\/p>\n<hr \/>\n<h2>Recept\u00e1culos 240V: As tomadas de alta pot\u00eancia<\/h2>\n<p>Tomadas de 240 volts fornecem o dobro da voltagem para grandes aparelhos. Elas t\u00eam arranjos de pinos distintos que evitam a conex\u00e3o acidental de um dispositivo 120V nelas.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7284\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/240V-Receptacles-The-Heavy-Duty-Outlets.webp\" alt=\"Recept\u00e1culos 240V: As tomadas de alta pot\u00eancia\" width=\"1448\" height=\"1086\" \/><\/p>\n<table>\n<thead>\n<tr>\n<th>Tipo NEMA<\/th>\n<th>Classifica\u00e7\u00e3o<\/th>\n<th>Apar\u00eancia<\/th>\n<th>Aparelho t\u00edpico<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>6-15R \/ 6-20R<\/td>\n<td>240V, 15\u201320A<\/td>\n<td>Dois slots horizontais + aterramento redondo<\/td>\n<td>Ar-condicionado de janela, compressores<\/td>\n<\/tr>\n<tr>\n<td>10-30R<\/td>\n<td>120\/240V, 30A<\/td>\n<td>Tr\u00eas pinos, sem aterramento (secadoras pr\u00e9-1996)<\/td>\n<td>Secadoras el\u00e9tricas antigas<\/td>\n<\/tr>\n<tr>\n<td>14-30R<\/td>\n<td>120\/240V, 30A<\/td>\n<td>Quatro pinos (neutro em forma de L)<\/td>\n<td><strong>Secadoras el\u00e9tricas modernas<\/strong><\/td>\n<\/tr>\n<tr>\n<td>14-50R<\/td>\n<td>120\/240V, 50A<\/td>\n<td>Four prongs<\/td>\n<td>Ranges, RV parks, EV chargers<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #ff0000;\">Key points in the context of code:<\/span> Code has mandated that all new dryer and range circuits that operate on 240V must come with 4-wire connections or the 14-series type in which the connection is grounded. The alternate 3-wire 10-series cannot be employed in new installations anymore.<\/p>\n<hr \/>\n<h2>Appearance Differences at a Glance<\/h2>\n<p>Here&#8217;s how to tell the basic varieties apart just by looking at them:<\/p>\n<table>\n<thead>\n<tr>\n<th>Receptacle<\/th>\n<th>Slots<\/th>\n<th>Distinguishing Feature<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2-prong ungrounded (1-15R)<\/td>\n<td>2 vertical slots<\/td>\n<td>No round hole at all<\/td>\n<\/tr>\n<tr>\n<td>3-prong 15A (5-15R)<\/td>\n<td>2 vertical + 1 round<\/td>\n<td>Both slots vertical, round ground below<\/td>\n<\/tr>\n<tr>\n<td>3-prong 20A (5-20R)<\/td>\n<td>1 vertical + 1 T-shaped + 1 round<\/td>\n<td>Sideways T slot on the left<\/td>\n<\/tr>\n<tr>\n<td>240V straight-blade (6-15R\/6-20R)<\/td>\n<td>2 horizontal + 1 round<\/td>\n<td>Both slots horizontal<\/td>\n<\/tr>\n<tr>\n<td>Dryer (14-30R)<\/td>\n<td>3 slots + 1 round<\/td>\n<td>L-shaped neutral slot<\/td>\n<\/tr>\n<tr>\n<td>Range\/EV (14-50R)<\/td>\n<td>3 slots + 1 round<\/td>\n<td>Larger, L-shaped neutral<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Examine the face plate either: the TEST and RESET buttons are present in a GFCI outlet; tamper-resistant outlet has sliding shutters in the openings and a USB outlet has USB ports on the face plate.<\/p>\n<hr \/>\n<h2>Special-Purpose Receptacles: GFCI, TR, USB<\/h2>\n<p>Beyond the two basic varieties, modern receptacles add safety and convenience features:<\/p>\n<table>\n<thead>\n<tr>\n<th>Tipo<\/th>\n<th>O que Ele Faz<\/th>\n<th>Where Required<\/th>\n<th>Pre\u00e7o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Recept\u00e1culo GFCI<\/strong><\/td>\n<td>Trips the circuit if it detects current leaking to ground (prevents shock)<\/td>\n<td>Bathrooms, kitchens, garages, outdoors, basements<\/td>\n<td>$10\u2013$25<\/td>\n<\/tr>\n<tr>\n<td><strong>Tamper-resistant (TR)<\/strong><\/td>\n<td>Internal shutters block objects inserted by children<\/td>\n<td>Required in all new residential construction<\/td>\n<td>$2\u2013$5<\/td>\n<\/tr>\n<tr>\n<td><strong>USB receptacle<\/strong><\/td>\n<td>Built-in USB-A \/ USB-C charging ports<\/td>\n<td>Optional \u2014 desks, nightstands, kitchens<\/td>\n<td>$15\u2013$45<\/td>\n<\/tr>\n<tr>\n<td><strong>Recept\u00e1culo AFCI<\/strong><\/td>\n<td>Detects dangerous arcing in wiring<\/td>\n<td>Bedrooms and living areas (circuit-level)<\/td>\n<td>$15\u2013$30<\/td>\n<\/tr>\n<tr>\n<td><strong>Combination switch\/outlet<\/strong><\/td>\n<td>Switch and receptacle in one device<\/td>\n<td>Where a switched outlet is needed<\/td>\n<td>$4\u2013$12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For a full overview of the four main outlet categories used in homes, our article on <a href=\"https:\/\/gog-elec.com\/pt\/blog\/what-are-the-4-types-of-electrical-outlets\/\">the 4 types of electrical outlets<\/a> is a quick, visual reference.<\/p>\n<hr \/>\n<h2>Which Receptacle for Which Room?<\/h2>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7285\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Which-Receptacle-for-Which-Room.webp\" alt=\"Which Receptacle for Which Room\" width=\"1448\" height=\"1086\" \/><\/p>\n<table>\n<thead>\n<tr>\n<th>Location<\/th>\n<th>Recommended Receptacle<\/th>\n<th>Why<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Bedroom \/ living room<\/td>\n<td>15A TR receptacle<\/td>\n<td>Tamper-resistant required; 15A plenty for general use<\/td>\n<\/tr>\n<tr>\n<td>Kitchen countertop<\/td>\n<td>20A GFCI receptacle<\/td>\n<td>Code requires GFCI within 6 ft of sink; 20A for small appliances<\/td>\n<\/tr>\n<tr>\n<td>Banheiro<\/td>\n<td>20A GFCI<\/td>\n<td>GFCI mandatory near water<\/td>\n<\/tr>\n<tr>\n<td>Garage \/ workshop<\/td>\n<td>GFCI + a 240V 6-20R<\/td>\n<td>GFCI for wet\/damp conditions; 240V for tools<\/td>\n<\/tr>\n<tr>\n<td>Laundry room<\/td>\n<td>GFCI 20A + 14-30R dryer outlet<\/td>\n<td>Wet area + dryer circuit<\/td>\n<\/tr>\n<tr>\n<td>Outdoors<\/td>\n<td>Weather-resistant GFCI (WR-GFCI)<\/td>\n<td>Must resist weather and ground faults<\/td>\n<\/tr>\n<tr>\n<td>EV charging<\/td>\n<td>14-50R (or hardwired charger)<\/td>\n<td>50A capacity for fast charging<\/td>\n<\/tr>\n<tr>\n<td>Desk \/ nightstand<\/td>\n<td>USB + TR receptacle<\/td>\n<td>Convenient charging, child-safe<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Price Guide: What Outlets Cost<\/h2>\n<table>\n<thead>\n<tr>\n<th>Tipo<\/th>\n<th>Retail Price<\/th>\n<th>Brand Name Price<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Basic 15A 3-prong receptacle<\/td>\n<td>$1\u2013$3<\/td>\n<td>$2\u2013$5<\/td>\n<\/tr>\n<tr>\n<td>20A receptacle<\/td>\n<td>$2\u2013$5<\/td>\n<td>$4\u2013$8<\/td>\n<\/tr>\n<tr>\n<td>Tamper-resistant 15A<\/td>\n<td>$2\u2013$4<\/td>\n<td>$3\u2013$6<\/td>\n<\/tr>\n<tr>\n<td>Recept\u00e1culo GFCI<\/td>\n<td>$10\u2013$18<\/td>\n<td>$15\u2013$25<\/td>\n<\/tr>\n<tr>\n<td>USB receptacle (dual port)<\/td>\n<td>$12\u2013$25<\/td>\n<td>$20\u2013$45<\/td>\n<\/tr>\n<tr>\n<td>Recept\u00e1culo AFCI<\/td>\n<td>$15\u2013$25<\/td>\n<td>$20\u2013$30<\/td>\n<\/tr>\n<tr>\n<td>Dryer receptacle (14-30R)<\/td>\n<td>$8\u2013$15<\/td>\n<td>$12\u2013$20<\/td>\n<\/tr>\n<tr>\n<td>Range\/EV receptacle (14-50R)<\/td>\n<td>$10\u2013$20<\/td>\n<td>$15\u2013$30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>There are differences among brands, finishes (like white, ivory, black, brass), and certification (UL certified vs. unlisted generic) that cause the price to change. Also, installation by professionals may cost from USD 50 to 150 for each outlet depending on the place of installation and the condition of wiring.<\/p>\n<hr \/>\n<h2>Top Receptacle Brands<\/h2>\n<table>\n<thead>\n<tr>\n<th>Marca<\/th>\n<th>Country<\/th>\n<th>Price Tier<\/th>\n<th>Known For<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Leviton<\/strong><\/td>\n<td>EUA<\/td>\n<td>Mid<\/td>\n<td>Decora designer line, wide selection, reliable<\/td>\n<\/tr>\n<tr>\n<td><strong>Eaton \/ Cooper Wiring<\/strong><\/td>\n<td>EUA<\/td>\n<td>Mid<\/td>\n<td>Commercial-grade durability, commercial installs<\/td>\n<\/tr>\n<tr>\n<td><strong>Legrand (Pass &amp; Seymour)<\/strong><\/td>\n<td>France\/USA<\/td>\n<td>Mid-High<\/td>\n<td>Designer finishes, smart outlets<\/td>\n<\/tr>\n<tr>\n<td><strong>Hubbell<\/strong><\/td>\n<td>EUA<\/td>\n<td>High<\/td>\n<td>Industrial-grade receptacles, extreme reliability<\/td>\n<\/tr>\n<tr>\n<td><strong>GE (Current)<\/strong><\/td>\n<td>EUA<\/td>\n<td>Budget-Mid<\/td>\n<td>Everyday outlets, widely available<\/td>\n<\/tr>\n<tr>\n<td><strong>Kopp \/ Belanko<\/strong><\/td>\n<td>Alemanha<\/td>\n<td>Mid<\/td>\n<td>European-style quality sockets<\/td>\n<\/tr>\n<tr>\n<td><strong>IGOTO<\/strong><\/td>\n<td>China<\/td>\n<td>Valor<\/td>\n<td>Smart switches and sockets, OEM for global brands<\/td>\n<\/tr>\n<tr>\n<td><strong>Schneider Electric<\/strong><\/td>\n<td>Fran\u00e7a<\/td>\n<td>Mid-High<\/td>\n<td>Unica and Clipsal lines, global standards<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For everyday residential use, Leviton and Eaton are the most-installed brands in North America. If you want premium finishes or smart features, Legrand and Schneider lead the way. Our guide to <a href=\"https:\/\/gog-elec.com\/pt\/blog\/top-10-wiring-devices-brands-in-the-world\/\">as 10 principais marcas de dispositivos de fia\u00e7\u00e3o no mundo<\/a> goes deeper into each manufacturer&#8217;s strengths.<\/p>\n<hr \/>\n<h2>Perguntas Frequentes<\/h2>\n<h3>What are the different types of electrical receptacles?<\/h3>\n<p>Electrical outlets belong to two main categories, namely the ungrounded outlets (with two prongs) and the grounded outlets (with three prongs). Other classifications could be made vertically. The types of electrical receptacles that are commonplace today include: NEMA 1-15 (now obsolete 2-prong), NEMA 5-15 (standard 15-amp 3-prong outlet), NEMA 5-20 (20 amps with T-shaped hole), NEMA 6-15\/6-20 (240 volts tools), NEMA 14-30 (for electric dryers) and NEMA 14-50 (for electric range and recreational vehicle). Using special kinds of outlets provides additional advantages.<\/p>\n<h3>What are the two types of outlets that are found in an electrical system?<\/h3>\n<p>In electrical systems, there are two main varieties of outlets: the 120-volt outlets (the general-purpose electric outlets which are used for powering small devices such as lamps, electronic gadgets and other household equipment) and the 240-volt outlets (which are high-power outlets for home appliances such as dryers, ovens, air conditioners and EV chargers). The other way of identifying the two different types of outlets can be through grounding which refers to two types of outlets namely two-prong ungrounded outlets (found in older homes now considered obsolete) and three-prong grounded outlets (the current standard). They basically refer to the two distinct ways in which devices consume electricity from different types of outlets.<\/p>\n<h3>What are the two types of electrical systems?<\/h3>\n<p>Almost everyone talks of two kinds of electric systems namely, single-phase and three-phase systems. Single-phase systems (usually 120\/240 volts) are utilized in most residences. They have two hot conductors and one neutral wire. Three-phase systems (208 volts or 480 volts) are utilized in industrial and commercial settings to deliver higher amounts of power more effectively and run heavy motors. Residential installations almost always rely on single-phase electricity. There may be a few instances where a household may use some form of three-phase electric equipment such as a water well pump, a workshop, or a solar inverter.<\/p>\n<h3>What are the two basic categories of electrical switches?<\/h3>\n<p>Electrical switches fall under two primary classifications: the single-pole switch that allows control of one electrical load from a single position and the three-way switch that gives control of an electrical load from two locations. Other classifications exist, among them the four-way switch (which is used when controlling a light from three or several locations) and special-type switches such as smart switches, timers, and dimmers. However, single-pole and three-way switches remain the two most important types of electric switch. The single-pole switch consists of two terminals, while the three-way switch is composed of three terminals.<\/p>\n<hr \/>\n<h2>Refer\u00eancias<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.nema.org\/\" target=\"_blank\" rel=\"noopener\">NEMA (National Electrical Manufacturers Association)<\/a> \u2014 The standards body that defines the NEMA receptacle configuration system (1-15, 5-15, 6-15, 14-30, 14-50, etc.) used throughout North America.<\/li>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/all-codes-and-standards\/list-of-codes-and-standards\/detail?code=70\" target=\"_blank\" rel=\"noopener\">NFPA 70 (National Electrical Code)<\/a> \u2014 The code that governs receptacle requirements, including GFCI protection locations, tamper-resistant outlets, and 4-wire 240V circuits.<\/li>\n<li><a href=\"https:\/\/www.ul.com\/resources\/plugs-and-receptacles\" target=\"_blank\" rel=\"noopener\">UL Standards for Plugs and Receptacles<\/a> \u2014 UL 498 covers the safety requirements for attachment plugs and receptacles sold in the United States.<\/li>\n<li><a href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener\">OSHA Electrical Safety<\/a> \u2014 U.S. workplace safety guidance on receptacles, grounding, and GFCI requirements.<\/li>\n<li><a href=\"https:\/\/www.energy.gov\/energysaver\/operating-gfci-outlets-and-switches\" target=\"_blank\" rel=\"noopener\">U.S. Department of Energy \u2014 GFCI Outlets<\/a> \u2014 Practical guidance on how GFCI receptacles work and how to test them.<\/li>\n<li><a href=\"https:\/\/www.leviton.com\/en\/products\/receptacles\" target=\"_blank\" rel=\"noopener\">Leviton Receptacle Catalog<\/a> \u2014 Manufacturer reference showing the range of receptacle types, from basic 15A outlets to GFCI, TR, and USB models.<\/li>\n<\/ul>\n<hr \/>\n<h2 id=\"conclusion\">Conclus\u00e3o<\/h2>\n<p>So, what are the two general types of electrical outlets? The simple answer is ungrounded (2-prong) and grounded (3-prong), or more simply put, 120V general purpose and 240V heavy duty. This makes the conclusion very clear:<\/p>\n<ul>\n<li>For everyday use, go for grounded 15 or 20 amp receptacles, as they are inexpensive, safe and compliant.<\/li>\n<li>For wet locations (bathroom, kitchen, garage, outdoors) you need to use GFCI outlets, as they can save your life and are required by the code.<\/li>\n<li>For heavy machinery use proper 240V NEMA outlet instead of modifying 120V outlet for those appliances.<\/li>\n<li>In case of renovation of old building, make sure you replace old 2-prong ungrounded outlets with grounded outlets (or GFCI protected).<\/li>\n<\/ul>\n<p>Thus, no matter where you want to buy a receptacle you have an idea where to begin.<\/p>","protected":false},"excerpt":{"rendered":"<p>Whether you are rewiring your house, changing an outlet, or just curious about the various electrical outlets in the room, you might be interested in knowing about the two different kinds of electrical outlets. While it may sound like a quiz question, it is important to know this information when buying electrical outlets, planning house [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7281,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-7280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/posts\/7280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/comments?post=7280"}],"version-history":[{"count":3,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/posts\/7280\/revisions"}],"predecessor-version":[{"id":7288,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/posts\/7280\/revisions\/7288"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/media\/7281"}],"wp:attachment":[{"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/media?parent=7280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/categories?post=7280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gog-elec.com\/pt\/wp-json\/wp\/v2\/tags?post=7280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}