{"id":2436,"date":"2026-10-05T18:27:50","date_gmt":"2026-10-05T18:27:50","guid":{"rendered":"https:\/\/yocl.com\/?wpr2_import=2e509240b19f83d92f6381df5fd95e1c1003e3b881e94d75bdeaf65c2d211895"},"modified":"2026-10-05T18:27:50","modified_gmt":"2026-10-05T18:27:50","slug":"what-is-a-wire-ferrule","status":"publish","type":"post","link":"https:\/\/yocl.com\/pt\/what-is-a-wire-ferrule\/","title":{"rendered":"O Que \u00c9 uma Virola de Fio? Tipos, Tamanhos e Compatibilidade de Terminais"},"content":{"rendered":"<p><strong>Uma ponteira de fio \u00e9 uma manga met\u00e1lica tubular crimpada em torno dos fios desencapados de um condutor para preparar a sua extremidade para inser\u00e7\u00e3o num terminal compat\u00edvel.<\/strong> Re\u00fane os fios numa extremidade contida. O terminal ainda fornece a liga\u00e7\u00e3o de aperto; o tipo, tamanho e forma final da ponteira devem adequar-se a essa liga\u00e7\u00e3o.<\/p>\n<p>Tamb\u00e9m chamada de <strong>ponteira de corda<\/strong>, <strong>manga de extremidade de fio<\/strong> ou <strong>ponteira de extremidade de corda<\/strong>, este componente \u00e9 especificado por mais do que a cor do anel. Para compreender uma ponteira, separe a sua capacidade de condutor, geometria da manga e uso permitido no terminal de rece\u00e7\u00e3o.<\/p>\n<h2>O que faz uma ponteira de fio?<\/h2>\n<p>A manga met\u00e1lica envolve os fios condutores expostos. A crimpagem forma a manga \u00e0 volta deles, de modo que a extremidade preparada possa ser manuseada e inserida como um \u00fanico feixe contido. Numa vers\u00e3o com colar, a entrada de pl\u00e1stico envolve a extremidade de entrada do fio; a por\u00e7\u00e3o met\u00e1lica projetada entra na \u00e1rea de contacto do terminal.<\/p>\n<p>O \u00e2mbito p\u00fablico de <a href=\"https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL486f\" target=\"_blank\" rel=\"noopener\">UL 486F, Terminais de Crimpagem Lisos e Isolados<\/a> descreve os terminais de crimpagem como prepara\u00e7\u00e3o da extremidade do condutor que facilita a liga\u00e7\u00e3o de fios tran\u00e7ados e impede que os fios se dobrem para tr\u00e1s durante a inser\u00e7\u00e3o. Abrange designs para um condutor de cobre tran\u00e7ado ou dois do mesmo tamanho.<\/p>\n<p>Esta fun\u00e7\u00e3o \u00e9 diferente de um terminal aparafusado a um pino ou de um conector que une duas extremidades de cabo. Um terminal de crimpagem prepara a extremidade para outro dispositivo de liga\u00e7\u00e3o. UL 486F tamb\u00e9m separa os terminais de crimpagem dos adaptadores de pino cobertos por outras normas de conectores; uma extremidade met\u00e1lica de aspeto semelhante n\u00e3o estabelece a intercambialidade.<\/p>\n<p><a href=\"https:\/\/www.dinmedia.de\/de\/norm\/din-46228-4\/316257621\" target=\"_blank\" rel=\"noopener\">DIN 46228-4:2020-03<\/a> identifica as mangas de extremidade tubulares com mangas de pl\u00e1stico. A sua introdu\u00e7\u00e3o oficial explica a conten\u00e7\u00e3o dos fios e a inser\u00e7\u00e3o mais f\u00e1cil no terminal. Isto apoia o prop\u00f3sito do componente, sem estabelecer que cada terminal requer um.<\/p>\n<h2>Os principais tipos de terminais de crimpagem para fios<\/h2>\n<p>A primeira distin\u00e7\u00e3o mais \u00fatil \u00e9 <strong>um condutor ou dois<\/strong>, seguido de <strong>constru\u00e7\u00e3o com ou sem colar<\/strong>. O cat\u00e1logo da YOCL organiza estes em s\u00e9ries E, EN e TE:<\/p>\n<table>\n<thead>\n<tr>\n<th>Constru\u00e7\u00e3o<\/th>\n<th>Disposi\u00e7\u00e3o vis\u00edvel<\/th>\n<th>O que necessita de verifica\u00e7\u00e3o separada<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/yocl.com\/pt\/product\/e-series-pre-insulated-wire-ferrules\/\">Terminal isolado E para fio \u00fanico<\/a><\/td>\n<td>Uma manga tubular com um colar isolante<\/td>\n<td>Tamanho de condutor \u00fanico, comprimento da manga e folga da gola<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/yocl.com\/pt\/product\/en-non-insulated-cord-end-ferrules\/\">Terminal de fio \u00fanico n\u00e3o isolado<\/a><\/td>\n<td>Manga de metal nu com entrada alargada<\/td>\n<td>Tamanho do condutor, dimens\u00f5es do tubo e arranjo de isolamento do equipamento<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/yocl.com\/pt\/product\/te-twin-cord-end-connectors\/\">Terminal de fio duplo isolado TE<\/a><\/td>\n<td>Uma manga comum e colar mais largo para dois condutores<\/td>\n<td>O tamanho de cada condutor e a aceita\u00e7\u00e3o da termina\u00e7\u00e3o acabada de dois fios<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure class=\"wp-block-image\">\n<img decoding=\"async\" src=\"https:\/\/yocl.com\/wp-content\/uploads\/2026\/10\/what-is-a-wire-ferrule-types.webp\" alt=\"Exterior comparison of insulated single-wire, uninsulated single-wire and insulated twin-wire ferrules, showing collar and sleeve differences.\"><figcaption>A forma e a constru\u00e7\u00e3o do colar distinguem estas fam\u00edlias; os desenhos n\u00e3o estabelecem a capacidade do condutor ou a aprova\u00e7\u00e3o do terminal.<\/figcaption><\/figure>\n<p>Estes s\u00e3o nomes de s\u00e9ries YOCL, em vez de um sistema de nomenclatura universal para todos os fornecedores. \u201cIsolado\u201d identifica a constru\u00e7\u00e3o do colar; n\u00e3o fornece uma classifica\u00e7\u00e3o de tens\u00e3o para a liga\u00e7\u00e3o conclu\u00edda. Da mesma forma, \u201cduplo\u201d identifica o arranjo pretendido dos condutores, em vez de permiss\u00e3o para colocar dois fios em qualquer terminal.<\/p>\n<h2>Como ler o tamanho de uma virola de cabo<\/h2>\n<h3>A \u00e1rea do condutor \u00e9 diferente do di\u00e2metro<\/h3>\n<p>Uma designa\u00e7\u00e3o como <strong>1.5 mm\u00b2<\/strong> refere-se \u00e0 \u00e1rea da sec\u00e7\u00e3o transversal do condutor. N\u00e3o \u00e9 o di\u00e2metro exterior do cabo, o di\u00e2metro interior da virola ou o di\u00e2metro da sua gola de pl\u00e1stico.<\/p>\n<p>Read the ferrule&#8217;s declared conductor size alongside its drawing. The conductor determines the capacity needed inside the sleeve; the ferrule&#8217;s external dimensions affect the space needed at the terminal. Cable insulation and collar geometry add another fit question at the entry.<\/p>\n<p>American Wire Gauge (AWG) is another conductor-size designation. Use the exact AWG or metric sizes declared for the chosen product and conductor. A catalogue pairing is not a reason to assume every nearby AWG\/mm\u00b2 size is an approved substitute.<\/p>\n<h3>Sleeve length is different from overall length<\/h3>\n<p>Ferrules of the same conductor capacity can have different sleeve lengths. On YOCL&#8217;s E-series drawing, <strong>F<\/strong> identifies the sleeve-length segment and <strong>L<\/strong> the overall length including the collar. These letter labels belong to that drawing; check the exact series before transferring their meanings.<\/p>\n<p>The published <a href=\"https:\/\/yocl.com\/pt\/product\/e-series-pre-insulated-wire-ferrules\/\">E-series<\/a> e <a href=\"https:\/\/yocl.com\/pt\/product\/te-twin-cord-end-connectors\/\">TE-series<\/a> tables provide a useful example:<\/p>\n<table>\n<thead>\n<tr>\n<th>Modelo YOCL<\/th>\n<th>Disposi\u00e7\u00e3o declarada do condutor<\/th>\n<th>F sleeve length<\/th>\n<th>L overall length<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>E1508<\/td>\n<td>One \u00d7 1.5 mm\u00b2<\/td>\n<td>8.0 mm<\/td>\n<td>15.0 mm<\/td>\n<\/tr>\n<tr>\n<td>E1512<\/td>\n<td>One \u00d7 1.5 mm\u00b2<\/td>\n<td>12.0 mm<\/td>\n<td>19.0 mm<\/td>\n<\/tr>\n<tr>\n<td>TE 1508<\/td>\n<td>Two \u00d7 1.5 mm\u00b2<\/td>\n<td>8.0 mm<\/td>\n<td>15.5 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure class=\"wp-block-image\">\n<img decoding=\"async\" src=\"https:\/\/yocl.com\/wp-content\/uploads\/2026\/10\/what-is-a-wire-ferrule-lengths.webp\" alt=\"E-style wire ferrule with separate arrows for sleeve length F and overall length L, plus labels identifying the collar and metal sleeve.\"><figcaption>F and L follow YOCL&#x27;s E-series drawing. Overall length includes the collar; check the exact series drawing rather than transferring letter labels between products.<\/figcaption><\/figure>\n<p>These are catalogue dimensions, not measurements of an installed connection. E1508 and E1512 accept the same declared conductor area but have different lengths. TE 1508 shares an 8 mm F dimension with E1508 while describing a different conductor arrangement. Neither area nor sleeve length alone determines terminal compatibility.<\/p>\n<p>The receiving terminal&#8217;s insertion depth and preparation instructions determine which length is appropriate. Overall length cannot substitute for sleeve length when comparing the metal portion with the terminal&#8217;s contact space.<\/p>\n<h3>Twin notation and collar colour need their own reading<\/h3>\n<p><strong>2 \u00d7 1.5 mm\u00b2 means two conductors, each 1.5 mm\u00b2.<\/strong> Their nominal areas add to 3 mm\u00b2, but that arithmetic does not turn the twin ferrule into a single-wire 3 mm\u00b2 model. Entry geometry, sleeve capacity, tooling and the permitted terminal arrangement remain separate requirements.<\/p>\n<p>Colour is useful only within the specified catalogue coding. YOCL&#8217;s E-series lists colour options by size group. Its TE 7508 and TE 7510 models both declare 2 \u00d7 0.75 mm\u00b2, yet list blue and grey collars respectively. Confirm the model and conductor designation rather than selecting a ferrule from colour alone.<\/p>\n<h2>What makes a ferrule compatible with a terminal?<\/h2>\n<p>Compatibility involves three interfaces:<\/p>\n<ul>\n<li><strong>Conductor to ferrule:<\/strong> the conductor material, size and count must match the ferrule&#8217;s declared arrangement.<\/li>\n<li><strong>Ferrule to crimping tool:<\/strong> the applicable tool and die must produce the required termination for that ferrule. Tool capacity alone does not establish the correct finished profile.<\/li>\n<li><strong>Finished ferrule to terminal:<\/strong> the receiving device must permit the prepared conductor arrangement and accommodate its sleeve, crimp profile and collar.<\/li>\n<\/ul>\n<p>\u201cScrew terminal\u201d, \u201cspring terminal\u201d and \u201cpush-in terminal\u201d name connection mechanisms. They do not provide a universal answer to whether a ferrule is required, optional or unsuitable. Use the exact device&#8217;s instructions and any declared range for ferruled conductors. A ferrule that physically enters the opening has passed only a geometry check.<\/p>\n<p>There is also an explicit scope boundary: UL 486F&#8217;s public scope excludes <strong>insulation-displacement connection (IDC) terminal blocks<\/strong>. Do not treat a prepared metal sleeve as a general replacement for the insulated wire that an IDC contact is designed to engage.<\/p>\n<p>For a twin ferrule, verify acceptance of the two-conductor arrangement and its finished dimensions. A larger opening, a sufficient nominal area or a broad plastic collar cannot supply that authorization. Square and hexagonal crimp names also need to be checked against the actual ferrule, tooling and terminal documentation; neither is a universal compatibility rule.<\/p>\n<h2>What do standards and certification tell you?<\/h2>\n<p>Standard identity, product dimensions and connection approval answer different questions. DIN&#8217;s published title identifies a construction family; UL 486F&#8217;s public scope identifies its intended use and exclusions. A supplier&#8217;s reference to either standard is not, by itself, a model-specific certification record.<\/p>\n<p><a href=\"https:\/\/www.ul.com\/thecodeauthority\/knowledge\/ul-component-recognition-classification\" target=\"_blank\" rel=\"noopener\">UL Solutions&#8217; explanation of Component Recognition<\/a> distinguishes a component&#8217;s assessment from certification of a complete end product. Recognized components have conditions of acceptability governing their use. Where certification is required, check the exact product record and applicable conditions alongside the receiving equipment&#8217;s documentation.<\/p>\n<p>The YOCL dimensions above are first-party product declarations. They help interpret size fields; this article does not assert UL certification, a current rating or an approved terminal combination for those models.<\/p>\n<h2>Which document should you check next?<\/h2>\n<table>\n<thead>\n<tr>\n<th>A sua pergunta<\/th>\n<th>The next document to use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Which construction describes the part I need?<\/td>\n<td>The single, bare or twin product-family information<\/td>\n<\/tr>\n<tr>\n<td>What conductor does this model accept?<\/td>\n<td>Its declared conductor size, material and count<\/td>\n<\/tr>\n<tr>\n<td>What do its length and diameter fields mean?<\/td>\n<td>The exact model\/series drawing and dimension table<\/td>\n<\/tr>\n<tr>\n<td>Which tool produces the required crimp?<\/td>\n<td>The applicable ferrule and tooling instructions<\/td>\n<\/tr>\n<tr>\n<td>Is the prepared end permitted in my terminal?<\/td>\n<td>The exact receiving device&#8217;s wiring instructions and connection data<\/td>\n<\/tr>\n<tr>\n<td>What evidence covers the intended equipment or market?<\/td>\n<td>Relevant model certification records, conditions and equipment requirements<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A <a href=\"https:\/\/yocl.com\/pt\/wire-ferrules-manufacturer\/\">YOCL wire-ferrule catalogue<\/a> routes these construction and dimension questions to the E, EN and TE product information. When asking for a model review, include the conductor size and count, required sleeve length and receiving terminal reference so the enquiry describes the complete interface.<\/p>\n<h2>Refer\u00eancias<\/h2>\n<ol>\n<li>UL Normas e Envolvimento \u2014 <a href=\"https:\/\/www.shopulstandards.com\/ProductDetail.aspx?productId=UL486f\" target=\"_blank\" rel=\"noopener\">UL 486F: Bare and Covered Ferrules<\/a>, Edition 3, 2024, revised August 2026. Official public scope, \u00a7\u00a71.2, 1.6 and 1.8; function, conductor arrangement and exclusions.<\/li>\n<li>DIN Media \u2014 <a href=\"https:\/\/www.dinmedia.de\/de\/norm\/din-46228-4\/316257621\" target=\"_blank\" rel=\"noopener\">DIN 46228-4:2020-03: Tubular end-sleeves with plastic sleeve<\/a>. Official publication identity and public introduction; the paid full standard was not consulted.<\/li>\n<li>YOCL informa\u00e7\u00f5es do produto \u2014 <a href=\"https:\/\/yocl.com\/pt\/product\/e-series-pre-insulated-wire-ferrules\/\">Terminais de Fio Pr\u00e9-Isolados S\u00e9rie E<\/a>. Construction, model dimensions, drawing and declared colour options.<\/li>\n<li>YOCL informa\u00e7\u00f5es do produto \u2014 <a href=\"https:\/\/yocl.com\/pt\/product\/en-non-insulated-cord-end-ferrules\/\">Terminais de ponta de cabo n\u00e3o isolados<\/a>. Bare flared-entry construction and dimension fields.<\/li>\n<li>YOCL informa\u00e7\u00f5es do produto \u2014 <a href=\"https:\/\/yocl.com\/pt\/product\/te-twin-cord-end-connectors\/\">Conectores de ponta de cabo duplos<\/a>. Two-conductor notation, model dimensions and model-specific collar colours.<\/li>\n<li>UL Solu\u00e7\u00f5es \u2014 <a href=\"https:\/\/www.ul.com\/thecodeauthority\/knowledge\/ul-component-recognition-classification\" target=\"_blank\" rel=\"noopener\">The UL Component Recognition Classification<\/a>. Component conditions of acceptability and the end-product certification boundary.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>A wire ferrule is a tubular metal sleeve crimped around the stripped strands of a conductor to prepare its end for insertion into a compatible terminal. It gathers the strands into a contained end. The terminal still provides the clamping connection; the ferrule&#8217;s type, size and finished shape must suit that connection. Also called a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2435,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[164],"tags":[],"class_list":["post-2436","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-terminals-connections"],"_links":{"self":[{"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/posts\/2436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/comments?post=2436"}],"version-history":[{"count":1,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/posts\/2436\/revisions"}],"predecessor-version":[{"id":2437,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/posts\/2436\/revisions\/2437"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/media\/2435"}],"wp:attachment":[{"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/media?parent=2436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/categories?post=2436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yocl.com\/pt\/wp-json\/wp\/v2\/tags?post=2436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}