{"id":4802,"date":"2022-01-21T13:58:26","date_gmt":"2022-01-21T10:58:26","guid":{"rendered":"https:\/\/vekmartest.com\/?p=4802"},"modified":"2024-01-24T14:00:26","modified_gmt":"2024-01-24T11:00:26","slug":"molded-case-circuit-breakers-mccb","status":"publish","type":"post","link":"https:\/\/www.vekmar.com.tr\/en\/molded-case-circuit-breakers-mccb\/","title":{"rendered":"Molded Case Circuit Breakers (MCCB)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4803\" src=\"https:\/\/vekmartest.com\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08.jpeg\" alt=\"\" width=\"1474\" height=\"1132\" srcset=\"https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08.jpeg 1474w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08-640x492.jpeg 640w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08-1280x983.jpeg 1280w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08-768x590.jpeg 768w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/WhatsApp-Image-2022-02-03-at-11.48.08-320x246.jpeg 320w\" sizes=\"auto, (max-width: 1474px) 100vw, 1474px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7indekiler<\/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=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #ffffff;color:#ffffff\" 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: #ffffff;color:#ffffff\" 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 ' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.vekmar.com.tr\/en\/molded-case-circuit-breakers-mccb\/#What_Are_MCCBs\" >What Are MCCBs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.vekmar.com.tr\/en\/molded-case-circuit-breakers-mccb\/#How_Do_They_Work\" >How Do They Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.vekmar.com.tr\/en\/molded-case-circuit-breakers-mccb\/#How_Are_They_Selected\" >How Are They Selected ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.vekmar.com.tr\/en\/molded-case-circuit-breakers-mccb\/#What_Are_the_Accessories_of_an_MCCB\" >What Are the Accessories of an MCCB?<\/a><\/li><\/ul><\/nav><\/div>\n<h4><span class=\"ez-toc-section\" id=\"What_Are_MCCBs\"><\/span><strong>What Are MCCBs?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Molded Case Circuit Breaker (MCCB) is a type of low-voltage circuit breaker. MCCB is an automatic electrical device used to protect the electrical equipment from overload, short circuit, instantaneous over current and earth fault. It is an advanced version of MCB (Miniature circuit breaker). It is used in a wide range from 16 Amps to 1600 Amps.<\/p>\n<p>Because MCCBs have wide current ratings and high breaking capacity, they can be used in industrial applications. Also they can be used for protection of capacitor bank, generator protection and main electric feeder distribution. It can be used for higher current rating and fault level even in home applications.<\/p>\n<figure id=\"attachment_4805\" aria-describedby=\"caption-attachment-4805\" style=\"width: 187px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4805\" src=\"https:\/\/vekmartest.com\/wp-content\/uploads\/2024\/01\/shneidermccb.png\" alt=\"\" width=\"187\" height=\"261\" \/><figcaption id=\"caption-attachment-4805\" class=\"wp-caption-text\">Schneider MCCB, NSX160F 3P 160A<\/figcaption><\/figure>\n<h4><span class=\"ez-toc-section\" id=\"How_Do_They_Work\"><\/span><strong>How Do They Work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The MCCB uses a temperature sensitive device (the thermal element) with a current sensitive electromagnetic device (the magnetic element) to provide the trip mechanism for protection and isolation purposes.<\/p>\n<p>This enables the MCCB to provide:<\/p>\n<ul>\n<li>Overload protection,<\/li>\n<li>Electrical fault protection in case of short circuit currents,<\/li>\n<li>Electrical switch for disconnection.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4807\" src=\"https:\/\/vekmartest.com\/wp-content\/uploads\/2024\/01\/condition.png\" alt=\"\" width=\"660\" height=\"247\" srcset=\"https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/condition.png 660w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/condition-640x240.png 640w, https:\/\/www.vekmar.com.tr\/wp-content\/uploads\/2024\/01\/condition-320x120.png 320w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/p>\n<h4><span class=\"ez-toc-section\" id=\"How_Are_They_Selected\"><\/span><strong>How Are They Selected ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>MCCBs in an electrical circuit should be selected according to the circuit\u2019s expected nominal operating current and possible short circuit fault currents. The three main criteria while selecting MCCBs are shown below:<\/p>\n<ul>\n<li>The rated operating voltage of the MCCB should be same with system voltage.<\/li>\n<li>The trip value of the MCCB should be set according to applications.<\/li>\n<li>The breaking capacity of the MCCB should be higher than the theoretical possible maximum short circuit fault currents.<\/li>\n<\/ul>\n<figure id=\"attachment_4809\" aria-describedby=\"caption-attachment-4809\" style=\"width: 206px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4809\" src=\"https:\/\/vekmartest.com\/wp-content\/uploads\/2024\/01\/eaton-206x300-1.png\" alt=\"\" width=\"206\" height=\"300\" \/><figcaption id=\"caption-attachment-4809\" class=\"wp-caption-text\">Eaton MCCB, NZMB2 3P 160A<\/figcaption><\/figure>\n<h4><span class=\"ez-toc-section\" id=\"What_Are_the_Accessories_of_an_MCCB\"><\/span><strong>What Are the Accessories of an MCCB?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>There are some accessories which are used with MCCB to provide extra function or indicate control voltage. these are shown in below.<\/p>\n<ul>\n<li>Rotary Handle (Extended\/Direct)<\/li>\n<li>Motorized Operation<\/li>\n<li>Manual\/Auto Operation<\/li>\n<li>Mechanical Interlocking<\/li>\n<li>Shunt Trip<\/li>\n<li>Alarm Contact<\/li>\n<li>Under Voltage Trip<\/li>\n<li>Auxilliary Contact<\/li>\n<\/ul>\n<p>VEKMAR supplies all these range of MCCBs in stock quantities as official distributor of Schneider Electric, Eaton and LS Electric. We will be glad to assist you with your project related to MCCB equipment. You can contact our expert engineering team when you need.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Are MCCBs? Molded Case Circuit Breaker (MCCB) is a type of low-voltage circuit breaker. MCCB is an automatic electrical&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4803,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[],"class_list":["post-4802","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electric"],"_links":{"self":[{"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/posts\/4802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/comments?post=4802"}],"version-history":[{"count":1,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/posts\/4802\/revisions"}],"predecessor-version":[{"id":4811,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/posts\/4802\/revisions\/4811"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/media\/4803"}],"wp:attachment":[{"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/media?parent=4802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/categories?post=4802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vekmar.com.tr\/en\/wp-json\/wp\/v2\/tags?post=4802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}