{"id":20573,"date":"2025-12-17T08:12:32","date_gmt":"2025-12-17T00:12:32","guid":{"rendered":"https:\/\/viox.com\/?p=20573"},"modified":"2025-12-04T23:48:44","modified_gmt":"2025-12-04T15:48:44","slug":"standard-breaker-sizes","status":"publish","type":"post","link":"https:\/\/test.viox.com\/tr\/standard-breaker-sizes\/","title":{"rendered":"Standart Kesici Boyutlar\u0131: MCCB Ak\u0131m De\u011ferleri 16A'dan 1600A'e kadar"},"content":{"rendered":"<div class=\"product-intro\">\n<p>Do\u011fru olan\u0131 se\u00e7mek<a href=\"https:\/\/test.viox.com\/tr\/mccb\/\"> kal\u0131pl\u0131 k\u0131l\u0131fl\u0131 devre kesici (MCCB)<\/a> standart devre kesici boyutlar\u0131n\u0131 anlamakla ba\u015flar. Aksine <a href=\"http:\/\/voix.com\/mcb\" rel=\"nofollow noopener\" target=\"_blank\">minyat\u00fcr devre kesiciler (MCB&#039;ler)<\/a> nihai devreleri koruyan, MCCB'ler \u00e7ok daha geni\u015f bir ak\u0131m aral\u0131\u011f\u0131n\u0131 kapsar\u201416A'l\u0131k bran\u015f besleyicilerinden 1600A'l\u0131k ana giri\u015flere kadar\u2014ve do\u011fru de\u011ferin se\u00e7ilmesi do\u011frudan sistem g\u00fcvenli\u011fini, koordinasyonunu ve proje maliyetlerini etkiler.<\/p>\n<p>Bu k\u0131lavuz, eksiksiz IEC 60947-2 standart ak\u0131m de\u011ferlerini haritaland\u0131r\u0131r, \u00e7er\u00e7eve boyutu kategorilerini a\u00e7\u0131klar ve devre kesici \u00f6zelliklerini uygulaman\u0131zla nas\u0131l e\u015fle\u015ftirece\u011finizi g\u00f6sterir. \u0130ster bir motor besleyicisini, ister bir bina alt \u015febekesini veya bir \u015falt cihaz\u0131 giri\u015fini boyutland\u0131r\u0131yor olun, ihtiyac\u0131n\u0131z olan teknik ayr\u0131nt\u0131lar\u0131 ve se\u00e7im mant\u0131\u011f\u0131n\u0131 bulacaks\u0131n\u0131z.<\/p>\n<h2>H\u0131zl\u0131 Ba\u015fvuru: Standart MCCB Ak\u0131m De\u011ferleri<\/h2>\n<p>IEC uyumlu MCCB'ler \u015fu standart de\u011ferlerde mevcuttur:<\/p>\n<p><strong>16A<\/strong> | <strong>20A<\/strong> | <strong>25A<\/strong> | <strong>32A<\/strong> | <strong>40A<\/strong> | <strong>50A<\/strong> | <strong>63A<\/strong> | <strong>80A<\/strong> | <strong>100A<\/strong> | <strong>125A<\/strong> | <strong>160A<\/strong> | <strong>200A<\/strong> | <strong>250A<\/strong> | <strong>320A<\/strong> | <strong>400A<\/strong> | <strong>500A<\/strong> | <strong>630A<\/strong> | <strong>800A<\/strong> | <strong>1000A<\/strong> | <strong>1250A<\/strong> | <strong>1600A<\/strong><\/p>\n<p>Her \u00fcretici her \u00e7er\u00e7evede her de\u011feri sunmaz. \u00c7er\u00e7eve boyutu (k\u00fc\u00e7\u00fck, orta veya b\u00fcy\u00fck), hangi ak\u0131m de\u011ferlerinin mevcut oldu\u011funu ve devre kesicinin hangi kesme kapasitelerine (Icu\/Ics) ula\u015fabilece\u011fini belirler.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-frame-size-comparison-showing-small-medium-and-large-frame-breakers.webp\" alt=\"MCCB Frame Size Comparison showing small, medium, and large frame breakers\" \/><figcaption>\u015eekil 1: MCCB'lerin \u00e7er\u00e7eve kategorilerindeki fiziksel boyut ilerlemesi. Soldan sa\u011fa: K\u00fc\u00e7\u00fck \u00e7er\u00e7eve (63A), Orta \u00e7er\u00e7eve (400A), B\u00fcy\u00fck \u00e7er\u00e7eve (1600A). \u00c7er\u00e7eve boyutu, mevcut maksimum ak\u0131m de\u011ferini ve kesme kapasitesini belirler.<\/figcaption><\/figure>\n<h2>IEC 60947-2 Standart De\u011ferlerini Anlamak<\/h2>\n<p>IEC 60947-2, t\u00fcm MCCB'ler dahil olmak \u00fczere al\u00e7ak gerilim devre kesicilerinin performans gereksinimlerini tan\u0131mlayan uluslararas\u0131 standartt\u0131r. Bir devre kesici isim plakas\u0131nda \u201cIEC 60947-2\u201d i\u015faretini g\u00f6rd\u00fc\u011f\u00fcn\u00fczde, cihaz\u0131n belirli elektriksel, mekanik ve g\u00fcvenlik kriterlerini kar\u015f\u0131lamak \u00fczere test edildi\u011fini ve onayland\u0131\u011f\u0131n\u0131 do\u011frular.<\/p>\n<h3>Temel De\u011ferlendirme Parametreleri<\/h3>\n<p>Her MCCB veri sayfas\u0131 \u015fu temel de\u011ferleri i\u00e7erir:<\/p>\n<p><strong>In (Nominal Ak\u0131m)<\/strong>: Devre kesicinin a\u00e7madan (trip etmeden) bir referans ortam s\u0131cakl\u0131\u011f\u0131nda (tipik olarak 40\u00b0C) ta\u015f\u0131yabilece\u011fi maksimum s\u00fcrekli ak\u0131m. Bu, devre kesicinin \u201cboyutudur\u201d\u2014\u00f6rne\u011fin, 250A'l\u0131k bir MCCB'nin In = 250A'd\u0131r.<\/p>\n<p><strong>Ue (Nominal \u00c7al\u0131\u015fma Gerilimi)<\/strong>: Devre kesicinin \u00e7al\u0131\u015fmak \u00fczere tasarland\u0131\u011f\u0131 gerilim. Ortak de\u011ferler, \u00fc\u00e7 fazl\u0131 sistemler i\u00e7in 230V, 400V, 690V AC veya pil ve g\u00fcne\u015f uygulamalar\u0131 i\u00e7in 250V DC'dir.<\/p>\n<p><strong>Icu (Nominal Nihai K\u0131sa Devre Kesme Kapasitesi)<\/strong>: Devre kesicinin g\u00fcvenli bir \u015fekilde bir kez kesebilece\u011fi maksimum ar\u0131za ak\u0131m\u0131 (kA cinsinden). Bir Icu seviyesindeki ar\u0131zadan sonra, devre kesici s\u00fcrekli hizmet i\u00e7in uygun olmayabilir. Tipik de\u011ferler, \u00e7er\u00e7eve boyutuna ba\u011fl\u0131 olarak 25kA ile 100kA aras\u0131nda de\u011fi\u015fir.<\/p>\n<p><strong>Ics (Nominal Servis K\u0131sa Devre Kesme Kapasitesi)<\/strong>: Devre kesicinin kesebilece\u011fi ve s\u00fcrekli \u00e7al\u0131\u015fma i\u00e7in servis edilebilir durumda kalabilece\u011fi ar\u0131za ak\u0131m\u0131 seviyesi. IEC, Ics'yi Icu'nun bir y\u00fczdesi olarak tan\u0131mlar\u2014genellikle , , veya 0. Kritik tesisler i\u00e7in Ics = 0'\u00fc belirtin; ticari binalar i\u00e7in standart uygulamad\u0131r.<\/p>\n<h3>Kullan\u0131m Kategorileri<\/h3>\n<p>IEC 60947-2 iki kategori tan\u0131mlar:<\/p>\n<ul>\n<li><strong>Kategori A<\/strong>: Kas\u0131tl\u0131 bir zaman gecikmesi olmadan an\u0131nda a\u00e7ma (trip etme) i\u00e7in tasarlanm\u0131\u015f devre kesiciler. \u00c7o\u011fu MCCB, genel da\u011f\u0131t\u0131m ve motor korumas\u0131 i\u00e7in bu kategoriye girer.<\/li>\n<li><strong>Kategori B<\/strong>: A\u015fa\u011f\u0131 ak\u0131\u015f cihazlar\u0131yla se\u00e7ici koordinasyon i\u00e7in kas\u0131tl\u0131 zaman gecikmesi (dayan\u0131m yetene\u011fi) olan devre kesiciler. Se\u00e7icili\u011fe ihtiya\u00e7 duydu\u011funuz yukar\u0131 ak\u0131\u015f konumlar\u0131nda kullan\u0131l\u0131r.<\/li>\n<\/ul>\n<h3>Bu De\u011ferler Neden \u00d6nemli?<\/h3>\n<p>Bir MCCB'yi boyutland\u0131r\u0131rken \u015funlardan emin olmal\u0131s\u0131n\u0131z:<\/p>\n<ul>\n<li>In, y\u00fck ak\u0131m\u0131na e\u015fit veya daha b\u00fcy\u00fck olmal\u0131d\u0131r (ani ak\u0131m ve gelecekteki b\u00fcy\u00fcme i\u00e7in pay ile)<\/li>\n<li>Icu, kurulum noktas\u0131ndaki olas\u0131 ar\u0131za ak\u0131m\u0131na e\u015fit veya daha b\u00fcy\u00fck olmal\u0131d\u0131r<\/li>\n<li>Ics, uygulama kritikli\u011fi i\u00e7in uygun olmal\u0131d\u0131r (-100)<\/li>\n<li>\u00c7er\u00e7eve boyutu, gerekli In ve Icu kombinasyonunu kar\u015f\u0131lamal\u0131d\u0131r<\/li>\n<\/ul>\n<p>250A'l\u0131k bir y\u00fck otomatik olarak 250A'l\u0131k bir devre kesici gerektirmez\u2014ayr\u0131ca ar\u0131za seviyesini, koordinasyon gereksinimlerini ve d\u00fc\u015f\u00fcrmenin uygulan\u0131p uygulanmad\u0131\u011f\u0131n\u0131 (y\u00fcksek ortam s\u0131cakl\u0131\u011f\u0131, gruplama veya harmonik i\u00e7eri\u011fi) do\u011frulaman\u0131z gerekir.<\/p>\n<h2>MCCB \u00c7er\u00e7eve Boyutu Kategorileri<\/h2>\n<h3>\u00c7er\u00e7eve Boyutu S\u0131n\u0131fland\u0131rmas\u0131<\/h3>\n<p>\u00dcreticiler farkl\u0131 adland\u0131rma kurallar\u0131 kullansa da, end\u00fcstri \u00fc\u00e7 geni\u015f kategori tan\u0131r:<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>\u00c7er\u00e7eve Kategorisi<\/strong><\/td>\n<td><strong>Tipik Ak\u0131m Aral\u0131\u011f\u0131<\/strong><\/td>\n<td><strong>Tipik Icu Aral\u0131\u011f\u0131<\/strong><\/td>\n<td><strong>Yayg\u0131n Uygulamalar<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>K\u00fc\u00e7\u00fck \u00c7er\u00e7eve<\/strong><\/td>\n<td>16A \u2013 250A<\/td>\n<td>25kA \u2013 50kA<\/td>\n<td>Bran\u015f devreleri, k\u00fc\u00e7\u00fck besleyiciler, motor korumas\u0131<\/td>\n<\/tr>\n<tr>\n<td><strong>Orta \u00c7er\u00e7eve<\/strong><\/td>\n<td>250A \u2013 630A<\/td>\n<td>35kA \u2013 70kA<\/td>\n<td>Alt \u015febekeler, bina besleyicileri, da\u011f\u0131t\u0131m panolar\u0131<\/td>\n<\/tr>\n<tr>\n<td><strong>B\u00fcy\u00fck \u00c7er\u00e7eve<\/strong><\/td>\n<td>630A \u2013 1600A<\/td>\n<td>38kV'ye kadar<\/td>\n<td>Ana giri\u015fler, \u015falt cihazlar\u0131, end\u00fcstriyel \u015febekeler<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u00c7er\u00e7eve Boyutu Neden \u00d6nemli?<\/h3>\n<p><strong>Kesme Kapasitesi S\u0131n\u0131rlar\u0131<\/strong>: Daha b\u00fcy\u00fck \u00e7er\u00e7eveler daha y\u00fcksek ar\u0131za ak\u0131mlar\u0131n\u0131 kesebilir. Kurulum noktan\u0131zda 65kA olas\u0131 ar\u0131za ak\u0131m\u0131 varsa, orta veya b\u00fcy\u00fck bir \u00e7er\u00e7eveye ihtiyac\u0131n\u0131z olacakt\u0131r\u2014k\u00fc\u00e7\u00fck \u00e7er\u00e7eveler tipik olarak 50kA'da maksimuma ula\u015f\u0131r.<\/p>\n<p><strong>Fiziksel Alan<\/strong>: 1600A'l\u0131k b\u00fcy\u00fck \u00e7er\u00e7eveli bir MCCB 300 mm veya daha geni\u015f olabilirken, 63A'l\u0131k k\u00fc\u00e7\u00fck \u00e7er\u00e7eveli bir devre kesici 70 mm olabilir. Panel tasar\u0131m\u0131, \u00f6zellikle yenileme projelerinde bu boyutlar\u0131 hesaba katmal\u0131d\u0131r.<\/p>\n<p><strong>Maliyet Optimizasyonu<\/strong>: A\u015f\u0131r\u0131 belirtmeyin. 30kA ar\u0131za seviyesine sahip 200A'l\u0131k bir uygulama b\u00fcy\u00fck \u00e7er\u00e7eveli bir devre kesiciye ihtiya\u00e7 duymaz. Panel alan\u0131ndan ve maliyetinden tasarruf etmek i\u00e7in k\u00fc\u00e7\u00fck \u00e7er\u00e7eveli 250A'l\u0131k bir \u00fcnite kullan\u0131n.<\/p>\n<p><strong>Ayar Aral\u0131\u011f\u0131<\/strong>: Daha b\u00fcy\u00fck \u00e7er\u00e7evelerdeki elektronik a\u00e7ma \u00fcniteleri genellikle In, Ir (termal) ve Im (manyetik) ayarlar\u0131n\u0131n sahada ayarlanmas\u0131na izin verir. Termal-manyetik a\u00e7malara sahip k\u00fc\u00e7\u00fck \u00e7er\u00e7eveler tipik olarak sabittir.<\/p>\n<h3>\u00c7er\u00e7eve ve De\u011fer: Pratik Bir \u00d6rnek<\/h3>\n<p>Ticari bir binada 40kA ar\u0131za seviyesine sahip 400A'l\u0131k bir besleyiciyi d\u00fc\u015f\u00fcn\u00fcn:<\/p>\n<ul>\n<li><strong>Se\u00e7enek 1<\/strong>: 400A \/ 50kA de\u011ferinde orta \u00e7er\u00e7eveli bir MCCB se\u00e7in (In=400A, Icu=50kA)<\/li>\n<li><strong>Se\u00e7enek 2<\/strong>: 400A \/ 65kA de\u011ferinde b\u00fcy\u00fck \u00e7er\u00e7eveli bir MCCB se\u00e7in (In=400A, Icu=65kA)<\/li>\n<\/ul>\n<p>Her ikisi de 400A'l\u0131k y\u00fck gereksinimini kar\u015f\u0131lar, ancak Se\u00e7enek 1, 40kA'l\u0131k ar\u0131za seviyesi i\u00e7in yeterli olan daha k\u00fc\u00e7\u00fck, daha ucuz bir \u00e7er\u00e7eve kullan\u0131r. Se\u00e7enek 2 pay sa\u011flar ancak panel alan\u0131 ve b\u00fct\u00e7eyi bo\u015fa harcar. \u00d6nemli olan <strong>en k\u00fc\u00e7\u00fck \u00e7er\u00e7eveyi se\u00e7mektir<\/strong> hem In hem de Icu gereksinimlerinizi kar\u015f\u0131layan.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/standard-mccb-current-ratings-chart-organized-by-frame-size.webp\" alt=\"Standard MCCB Current Ratings Chart organized by frame size\" \/><figcaption>\u015eekil 2: Komple IEC 60947-2 standard\u0131 ak\u0131m de\u011ferleri, \u00e7er\u00e7eve kategorisine g\u00f6re d\u00fczenlenmi\u015ftir. K\u00fc\u00e7\u00fck \u00e7er\u00e7eveler (16-250A) bran\u015f devrelerini ve motor korumas\u0131n\u0131 y\u00f6netir; orta \u00e7er\u00e7eveler (250-630A) bina besleyicilerine ve alt \u015febekelere hizmet eder; b\u00fcy\u00fck \u00e7er\u00e7eveler (630-1600A) ana giri\u015fleri ve \u015falt cihazlar\u0131n\u0131 korur.<\/figcaption><\/figure>\n<h2>K\u00fc\u00e7\u00fck \u00c7er\u00e7eveli MCCB'ler (16A \u2013 250A)<\/h2>\n<p>K\u00fc\u00e7\u00fck \u00e7er\u00e7eveli MCCB'ler, ticari ve hafif end\u00fcstriyel ortamlarda bran\u015f devresi, alt besleyici ve motor koruma uygulamalar\u0131n\u0131n \u00e7o\u011funu y\u00f6netir. MCB'ler (125A'ya kadar) ve daha b\u00fcy\u00fck da\u011f\u0131t\u0131m \u015falterleri aras\u0131ndaki bo\u015flu\u011fu doldururlar.<\/p>\n<h3>Standart Ak\u0131m De\u011ferleri<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>De\u011fer (A)<\/strong><\/td>\n<td><strong>Tipik Uygulamalar<\/strong><\/td>\n<td><strong>Yayg\u0131n A\u00e7ma Tipi<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>16A<\/strong><\/td>\n<td>K\u00fc\u00e7\u00fck motor besleyicileri, ayd\u0131nlatma panolar\u0131<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>20A<\/strong><\/td>\n<td>Ekipman devreleri, k\u00fc\u00e7\u00fck pompalar<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>25A<\/strong><\/td>\n<td>HVAC \u00fcniteleri, k\u00fc\u00e7\u00fck makineler<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>32A<\/strong><\/td>\n<td>Motor besleyicileri (400V'ta 15kW'a kadar)<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>40A<\/strong><\/td>\n<td>Ticari mutfak ekipmanlar\u0131, so\u011futucular<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>50A<\/strong><\/td>\n<td>Orta boy motorlar (22kW), UPS besleyicileri<\/td>\n<td>Termal-Manyetik<\/td>\n<\/tr>\n<tr>\n<td><strong>63A<\/strong><\/td>\n<td>Da\u011f\u0131t\u0131m alt besleyicileri, b\u00fcy\u00fck motorlar (30kW)<\/td>\n<td>Termal-Manyetik \/ Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>80A<\/strong><\/td>\n<td>Bina alt da\u011f\u0131t\u0131m\u0131, motor kontrol merkezleri<\/td>\n<td>Termal-Manyetik \/ Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>100A<\/strong><\/td>\n<td>Kat da\u011f\u0131t\u0131m panolar\u0131, asans\u00f6r devreleri<\/td>\n<td>Termal-Manyetik \/ Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>125A<\/strong><\/td>\n<td>Bina y\u00fckselticileri, k\u00fc\u00e7\u00fck ticari servis giri\u015fi<\/td>\n<td>Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>160A<\/strong><\/td>\n<td>Alt \u015febekeler, jenerat\u00f6r transfer \u015falterleri<\/td>\n<td>Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>200A<\/strong><\/td>\n<td>Ticari alt \u015febekeler, k\u00fc\u00e7\u00fck end\u00fcstriyel besleyiciler<\/td>\n<td>Elektronik<\/td>\n<\/tr>\n<tr>\n<td><strong>250A<\/strong><\/td>\n<td>Bina ana besleyicileri, end\u00fcstriyel da\u011f\u0131t\u0131m<\/td>\n<td>Elektronik<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Teknik \u00d6zellikler<\/h3>\n<p><strong>Kesme Kapasitesi<\/strong>: K\u00fc\u00e7\u00fck \u00e7er\u00e7eveli MCCB'ler tipik olarak 25kA ila 50kA aras\u0131nda Icu de\u011ferleri sunar. \u00c7o\u011fu ticari bina i\u00e7in (ar\u0131za seviyeleri 20-35kA), 36kA veya 50kA \u00e7er\u00e7eve yeterli koruma sa\u011flar.<\/p>\n<p><strong>A\u00e7ma Teknolojisi<\/strong>:<\/p>\n<ul>\n<li><strong>16A-63A<\/strong>: Genellikle sabit termal-manyetik (bimetalik + elektromanyetik a\u00e7ma)<\/li>\n<li><strong>63A-250A<\/strong>: Hem sabit termal-manyetik hem de ayarlanabilir elektronik versiyonlarda mevcuttur<\/li>\n<li>Elektronik a\u00e7ma \u00fcniteleri, motor koordinasyonu i\u00e7in yararl\u0131 olan ayarlanabilir Ir (a\u015f\u0131r\u0131 y\u00fck) ve Im (k\u0131sa devre) ayarlar\u0131 sunar<\/li>\n<\/ul>\n<p><strong>Mevcut Kutuplar<\/strong>: 1P, 2P, 3P, 4P konfig\u00fcrasyonlar\u0131. Tek fazl\u0131 devreler i\u00e7in 1P MCCB'lerin MCB'lerden daha az yayg\u0131n oldu\u011funa dikkat edin\u2014\u00e7o\u011fu k\u00fc\u00e7\u00fck \u00e7er\u00e7eveli MCCB 2P veya 3P'den ba\u015flar.<\/p>\n<h3>Motor Korumas\u0131 \u00d6rne\u011fi<\/h3>\n<p>30kW \/ 400V \u00fc\u00e7 fazl\u0131 bir motor i\u00e7in (In \u2248 57A tam y\u00fck):<\/p>\n<ol>\n<li><strong>\u015ealter de\u011ferini se\u00e7in<\/strong>: 63A MCCB'yi se\u00e7in (57A'n\u0131n \u00fczerindeki bir sonraki standart boyut)<\/li>\n<li><strong>Kesme kapasitesini do\u011frulay\u0131n<\/strong>: Ar\u0131za seviyesi 28kA ise, 36kA veya 50kA Icu belirtin<\/li>\n<li><strong>A\u00e7ma ayar\u0131<\/strong>: Ayarlanabilir Ir'si 0,95 x In'e (54A termal koruma) ayarlanm\u0131\u015f elektronik a\u00e7ma kullan\u0131n<\/li>\n<li><strong>Koordinasyon<\/strong>: Manyetik e\u015fik Im'nin motor \u00e7al\u0131\u015ft\u0131rma ak\u0131m\u0131ndan (tipik olarak 6-8 x In) daha y\u00fcksek oldu\u011fundan emin olun<\/li>\n<\/ol>\n<h3>K\u00fc\u00e7\u00fck \u00c7er\u00e7eve Ne Zaman Se\u00e7ilir<\/h3>\n<ul>\n<li><strong>Y\u00fck ak\u0131m\u0131<\/strong> \u2264 250A<\/li>\n<li><strong>Ar\u0131za seviyesi<\/strong> \u2264 50kA<\/li>\n<li><strong>Uygulama<\/strong> motorlar, makineler veya bina alt da\u011f\u0131t\u0131m\u0131 i\u00e7erir<\/li>\n<li><strong>Alan<\/strong> s\u0131n\u0131rl\u0131d\u0131r (tipik olarak kutuplara ba\u011fl\u0131 olarak 70-140 mm geni\u015fli\u011finde)<\/li>\n<\/ul>\n<p>Basit diren\u00e7li y\u00fckleri koruyan daha d\u00fc\u015f\u00fck de\u011ferler (16-32A) i\u00e7in bir MCB daha uygun maliyetli olabilir. Ayarlanabilir a\u00e7ma ayarlar\u0131na, daha y\u00fcksek kesme kapasitesine veya daha iyi se\u00e7icilik koordinasyonuna ihtiyac\u0131n\u0131z oldu\u011funda bir MCCB se\u00e7in.<\/p>\n<h2>Orta \u00c7er\u00e7eveli MCCB'ler (250A \u2013 630A)<\/h2>\n<p>Orta \u00e7er\u00e7eveli MCCB'ler, ticari ve end\u00fcstriyel da\u011f\u0131t\u0131m sistemlerinin omurgas\u0131n\u0131 olu\u015fturur. Bina besleyicilerini, alt \u015febekeleri ve orta gerilim transformat\u00f6r sekonderlerini korurlar. Bu aral\u0131k, ofis binalar\u0131nda, al\u0131\u015fveri\u015f merkezlerinde ve \u00fcretim tesislerinde ana da\u011f\u0131t\u0131m panosu uygulamalar\u0131n\u0131n \u00e7o\u011funu kapsar.<\/p>\n<h3>Standart Ak\u0131m De\u011ferleri<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>De\u011fer (A)<\/strong><\/td>\n<td><strong>Tipik Uygulamalar<\/strong><\/td>\n<td><strong>Tipik Icu Aral\u0131\u011f\u0131<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>250A<\/strong><\/td>\n<td>Bina ana besleyicileri, end\u00fcstriyel alt da\u011f\u0131t\u0131m<\/td>\n<td>35kA \u2013 65kA<\/td>\n<\/tr>\n<tr>\n<td><strong>320A<\/strong><\/td>\n<td>Ticari ana besleyiciler, orta end\u00fcstriyel y\u00fckler<\/td>\n<td>35kA \u2013 65kA<\/td>\n<\/tr>\n<tr>\n<td><strong>400A<\/strong><\/td>\n<td>Bina servis giri\u015fi (k\u00fc\u00e7\u00fck-orta), proses ekipman\u0131<\/td>\n<td>35kA \u2013 70kA<\/td>\n<\/tr>\n<tr>\n<td><strong>500A<\/strong><\/td>\n<td>B\u00fcy\u00fck bina besleyicileri, end\u00fcstriyel \u015febekeler<\/td>\n<td>50kA \u2013 70kA<\/td>\n<\/tr>\n<tr>\n<td><strong>630A<\/strong><\/td>\n<td>Ana da\u011f\u0131t\u0131m panolar\u0131, transformat\u00f6r sekonder korumas\u0131<\/td>\n<td>50kA \u2013 85kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Teknik \u00d6zellikler<\/h3>\n<p><strong>Kesme Kapasitesi<\/strong>: Orta \u00e7er\u00e7eveler, ana da\u011f\u0131t\u0131m noktalar\u0131nda tipik olan y\u00fcksek ar\u0131za ak\u0131mlar\u0131n\u0131 y\u00f6netmek i\u00e7in daha y\u00fcksek Icu de\u011ferleri (35-85kA) sunar. Yerinde \u00fcretim veya yak\u0131n transformat\u00f6r ba\u011flant\u0131s\u0131 olan end\u00fcstriyel tesisler genellikle 40-65kA aral\u0131\u011f\u0131nda ar\u0131za seviyeleri g\u00f6r\u00fcr.<\/p>\n<p><strong>Elektronik Gezi \u00dcniteleri<\/strong>: Neredeyse t\u00fcm orta \u00e7er\u00e7eveli MCCB'ler a\u015fa\u011f\u0131daki \u00f6zelliklere sahip elektronik a\u00e7ma teknolojisini kullan\u0131r:<\/p>\n<ul>\n<li><strong>Ir (A\u015f\u0131r\u0131 Y\u00fck)<\/strong>: 0,4 ila 1,0 x In aras\u0131nda ayarlanabilir, zaman gecikmeli termal koruma<\/li>\n<li><strong>Isd (K\u0131sa Gecikme)<\/strong>: Ayarlanabilir ani k\u0131sa devre e\u015fi\u011fi, tipik olarak 1.5-10 x In<\/li>\n<li><strong>Ii (Anl\u0131k)<\/strong>: Y\u00fcksek seviyeli ar\u0131zalar i\u00e7in manyetik a\u00e7ma (baz\u0131 \u00fcnitelerde iste\u011fe ba\u011fl\u0131)<\/li>\n<li><strong>Toprak Ar\u0131zas\u0131<\/strong>: Geli\u015fmi\u015f g\u00fcvenlik i\u00e7in iste\u011fe ba\u011fl\u0131 toprak ka\u00e7a\u011f\u0131 koruma mod\u00fcl\u00fc<\/li>\n<\/ul>\n<p><strong>\u00c7er\u00e7eve Geni\u015fli\u011fi<\/strong>: 3 kutuplu \u00fcniteler i\u00e7in 140-180 mm, 4 kutuplu \u00fcniteler i\u00e7in 190-240 mm geni\u015flik beklenir. Panel kesme boyutlar\u0131n\u0131 dikkatlice planlay\u0131n\u2014bu kesiciler k\u00fc\u00e7\u00fck \u00e7er\u00e7evelerden \u00f6nemli \u00f6l\u00e7\u00fcde daha fazla yer kaplar.<\/p>\n<p><strong>\u0130leti\u015fim<\/strong>: Bir\u00e7ok orta \u00e7er\u00e7eveli MCCB, bina y\u00f6netim sistemlerine (BMS) veya SCADA'ya entegrasyon i\u00e7in ileti\u015fim mod\u00fclleri (Modbus RTU, Profibus, Ethernet) sunar.<\/p>\n<h3>Koordinasyon ve Se\u00e7icilik<\/h3>\n<p>Bu ak\u0131m seviyesinde, <strong>se\u00e7ici koordinasyon<\/strong> kritik hale gelir. Yukar\u0131 ak\u0131m 630A ve a\u015fa\u011f\u0131 ak\u0131m 250A kesicilerin d\u00fczg\u00fcn bir \u015fekilde ayr\u0131m yapt\u0131\u011f\u0131ndan emin olmak i\u00e7in zaman-ak\u0131m e\u011frisi analizine ihtiyac\u0131n\u0131z var:<\/p>\n<ul>\n<li><strong>Farkl\u0131 a\u00e7ma teknolojileri kullan\u0131n<\/strong>: Yukar\u0131 ak\u0131m elektronik (ayarlanabilir zaman gecikmesi) + a\u015fa\u011f\u0131 ak\u0131m termik-manyetik (h\u0131zl\u0131)<\/li>\n<li><strong>Zaman-ak\u0131m e\u011frilerini do\u011frulay\u0131n<\/strong>: T\u00fcm ar\u0131za seviyelerinde en az 100-200 ms ayr\u0131m s\u00fcresi sa\u011flay\u0131n<\/li>\n<li><strong>S-serisi veya ZSI'y\u0131 d\u00fc\u015f\u00fcn\u00fcn<\/strong>: Baz\u0131 \u00fcreticiler, garantili koordinasyon i\u00e7in \u201cse\u00e7ici\u201d veya b\u00f6lge se\u00e7ici kilitleme sunar<\/li>\n<\/ul>\n<h3>Transformat\u00f6r Sekonder Koruma \u00d6rne\u011fi<\/h3>\n<p>1000kVA \/ 400V transformat\u00f6r i\u00e7in (In \u2248 1443A sekonder):<\/p>\n<ol>\n<li><strong>Ar\u0131za seviyesini hesaplay\u0131n<\/strong>: Transformat\u00f6r empedans\u0131 Zk = 6% ise, sekonder ar\u0131za \u2248 24 x In = 34.6kA<\/li>\n<li><strong>\u015ealter de\u011ferini se\u00e7in<\/strong>: Ana kesici olarak 630A MCCB'yi se\u00e7in (gelecekteki y\u00fck art\u0131\u015f\u0131na ~440kW'a kadar izin verir)<\/li>\n<li><strong>Kesme kapasitesini belirtin<\/strong>: Icu \u2265 35kA; marj i\u00e7in 50kA veya 65kA \u00e7er\u00e7eve se\u00e7in<\/li>\n<li><strong>A\u00e7ma ayarlar\u0131<\/strong>: Ir = 0.8 x 630A = 504A (a\u015f\u0131r\u0131 y\u00fck a\u00e7mas\u0131 olmadan 1443A besleyiciye izin verir)<\/li>\n<li><strong>Koordinasyon<\/strong>: A\u015fa\u011f\u0131 ak\u0131m 250A kesicilerle se\u00e7icilik i\u00e7in Isd = 3000A'y\u0131 0.2s gecikmeyle ayarlay\u0131n<\/li>\n<\/ol>\n<h3>Orta \u00c7er\u00e7eve Ne Zaman Se\u00e7ilir<\/h3>\n<ul>\n<li><strong>Y\u00fck ak\u0131m\u0131<\/strong> 250-630A<\/li>\n<li><strong>Ar\u0131za seviyesi<\/strong> 30-85kA<\/li>\n<li><strong>Uygulama<\/strong> ana da\u011f\u0131t\u0131m panolar\u0131n\u0131, bina servis giri\u015fini veya end\u00fcstriyel besleyicileri i\u00e7erir<\/li>\n<li><strong>Se\u00e7icilik<\/strong> a\u015fa\u011f\u0131 ak\u0131m kesicilerle koordinasyon gereklidir<\/li>\n<li><strong>\u0130leti\u015fim<\/strong> BMS\/SCADA ile entegrasyon gereklidir<\/li>\n<\/ul>\n<h2>B\u00fcy\u00fck \u00c7er\u00e7eveli MCCB'ler (630A \u2013 1600A)<\/h2>\n<p>B\u00fcy\u00fck \u00e7er\u00e7eveli MCCB'ler, ana giri\u015fleri, \u015falt cihaz\u0131 bara b\u00f6l\u00fcmlerini ve a\u011f\u0131r end\u00fcstriyel y\u00fckleri korur. Bu kesiciler, \u015febeke beslemesi (veya yerinde \u00fcretim) ile tesisin da\u011f\u0131t\u0131m sistemi aras\u0131nda birincil koruma cihaz\u0131 olarak hizmet eder. Bu \u00f6l\u00e7ekte, tek bir kesici ar\u0131zas\u0131 t\u00fcm bir binay\u0131 veya \u00fcretim hatt\u0131n\u0131 kapatabilir\u2014g\u00fcvenilirlik ve koordinasyon tart\u0131\u015f\u0131lmazd\u0131r.<\/p>\n<h3>Standart Ak\u0131m De\u011ferleri<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>De\u011fer (A)<\/strong><\/td>\n<td><strong>Tipik Uygulamalar<\/strong><\/td>\n<td><strong>Tipik Icu Aral\u0131\u011f\u0131<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>630A<\/strong><\/td>\n<td>K\u00fc\u00e7\u00fck end\u00fcstriyel ana giri\u015f, b\u00fcy\u00fck bina servisi<\/td>\n<td>38kV'ye kadar<\/td>\n<\/tr>\n<tr>\n<td><strong>800A<\/strong><\/td>\n<td>Orta end\u00fcstriyel ana, \u00e7oklu bina kamp\u00fcs da\u011f\u0131t\u0131m\u0131<\/td>\n<td>65kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1000A<\/strong><\/td>\n<td>End\u00fcstriyel ana \u015falt panosu, veri merkezi UPS giri\u015fi<\/td>\n<td>65kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1250A<\/strong><\/td>\n<td>A\u011f\u0131r end\u00fcstriyel ana hatlar, b\u00fcy\u00fck ticari kompleksler<\/td>\n<td>85kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1600A<\/strong><\/td>\n<td>Maksimum MCCB de\u011feri; ana \u015falt cihaz\u0131, birincil giri\u015fler<\/td>\n<td>85kA \u2013 150kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Teknik \u00d6zellikler<\/h3>\n<p><strong>Kesme Kapasitesi<\/strong>: B\u00fcy\u00fck \u00e7er\u00e7eveler, MCCB teknolojisinde mevcut olan en y\u00fcksek Icu de\u011ferlerini sunar\u201465-150kA. Bu seviyenin \u00fczerinde, tipik olarak \u015funa ge\u00e7ersiniz: <a href=\"https:\/\/test.viox.com\/tr\/complete-guide-to-air-circuit-breakers-acb\/\">Hava Devre Kesiciler (ACB&#039;ler)<\/a> \u00e7ekmeceli yap\u0131 ile.<\/p>\n<p><strong>Geli\u015fmi\u015f Elektronik A\u00e7ma \u00dcniteleri<\/strong>: B\u00fcy\u00fck \u00e7er\u00e7eveli MCCB'ler, a\u015fa\u011f\u0131dakilerle birlikte geli\u015fmi\u015f mikroi\u015flemci kontroll\u00fc a\u00e7ma \u00fcnitelerine sahiptir:<\/p>\n<ul>\n<li><strong>Programlanabilir zaman-ak\u0131m e\u011frileri<\/strong>: ANSI e\u011frileri, IEC e\u011frileri veya \u00f6zel ayarlar<\/li>\n<li><strong>Toprak ka\u00e7a\u011f\u0131 korumas\u0131<\/strong>: Ayarlanabilir hassasiyet ve zaman gecikmesi (30mA ila 1200A)<\/li>\n<li><strong>N\u00f6tr korumas\u0131<\/strong>: N\u00f6tr ak\u0131m izleme \u00f6zellikli 4 kutuplu \u00fcniteler<\/li>\n<li><strong>Ark ar\u0131zas\u0131 alg\u0131lama<\/strong>: Yang\u0131n \u00f6nleme i\u00e7in iste\u011fe ba\u011fl\u0131 AFCI mod\u00fclleri<\/li>\n<li><strong>\u00d6l\u00e7\u00fcm ve veri kayd\u0131<\/strong>: Ger\u00e7ek zamanl\u0131 ak\u0131m, gerilim, g\u00fc\u00e7, enerji, harmonikler<\/li>\n<li><strong>\u0130leti\u015fim protokolleri<\/strong>: Entegrasyon i\u00e7in Modbus TCP\/IP, Profinet, BACnet<\/li>\n<\/ul>\n<p><strong>Fiziksel Boyutlar<\/strong>: 1600A 4 kutuplu bir MCCB, 300mm (G) x 380mm (Y) x 140mm (D) \u00f6l\u00e7\u00fclerinde olabilir. A\u011f\u0131rl\u0131k 15 kg'\u0131 a\u015far. Kurulum, uygun tork \u00f6zellikleriyle (genellikle 40-60 Nm terminal torku) derecelendirilmi\u015f bara veya kablo pabucu \u00fczerine g\u00fcvenli montaj gerektirir.<\/p>\n<p><strong>Test ve Bak\u0131m<\/strong>: IEC 60947-2, b\u00fcy\u00fck \u00e7er\u00e7eveli MCCB'lerin belirli test dizilerine dayanmas\u0131n\u0131 gerektirir. B\u00fcy\u00fck ar\u0131zalardan (Icu'ya yak\u0131n) sonra, kontak erozyonu, ark olu\u011fu durumu ve mekanizma a\u015f\u0131nmas\u0131 a\u00e7\u0131s\u0131ndan inceleyin. Bir\u00e7ok saha, y\u0131ll\u0131k a\u00e7ma testi ve 3-5 y\u0131lda bir kontak direnci kontrolleri yapar.<\/p>\n<h3>\u015ealt Cihaz\u0131 Ana Giri\u015f \u00d6rne\u011fi<\/h3>\n<p>2500kVA \/ 400V end\u00fcstriyel tesis i\u00e7in (tahmini y\u00fck 3608A, talep fakt\u00f6r\u00fc 0.6 = 2165A):<\/p>\n<ol>\n<li><strong>Ar\u0131za seviyesini hesaplay\u0131n<\/strong>: \u015eebeke ar\u0131za katk\u0131s\u0131 = servis noktas\u0131nda 80kA<\/li>\n<li><strong>\u015ealter de\u011ferini se\u00e7in<\/strong>: 1600A MCCB'yi se\u00e7in (2165A talebin \u00fczerindeki bir sonraki standart boyut, b\u00fcy\u00fcmeye izin verir)<\/li>\n<li><strong>Kesme kapasitesini belirtin<\/strong>: Icu \u2265 80kA; g\u00fcvenlik marj\u0131 i\u00e7in 100kA \u00e7er\u00e7eve se\u00e7in<\/li>\n<li><strong>A\u00e7ma ayarlar\u0131<\/strong>: Ir = 0.9 x 1600A = 1440A, Isd = 6400A \/ 0.4s, Ii = 15000A<\/li>\n<li><strong>Koordinasyon<\/strong>: Zaman-ak\u0131m e\u011frilerini kullanarak a\u015fa\u011f\u0131 ak\u0131m 630A besleyicilerle se\u00e7icili\u011fi do\u011frulay\u0131n<\/li>\n<li><strong>\u0130leti\u015fim<\/strong>: Y\u00fck izleme ve uzaktan a\u00e7ma \u00f6zelli\u011fi i\u00e7in SCADA'ya ba\u011flan\u0131n<\/li>\n<\/ol>\n<h3>ACB - B\u00fcy\u00fck G\u00f6vdeli MCCB Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/h3>\n<p><strong>\u015eu durumlarda MCCB'ye ba\u011fl\u0131 kal\u0131n:<\/strong>:<\/p>\n<ul>\n<li>Ak\u0131m \u2264 1600A<\/li>\n<li>Ar\u0131za seviyesi \u2264 100kA (veya y\u00fcksek performansl\u0131 modellerle 150kA)<\/li>\n<li>Sabit kurulum (\u00e7ekmeceli servis gereksinimi yok)<\/li>\n<li>B\u00fct\u00e7e k\u0131s\u0131tlamalar\u0131, kompakt MCCB'yi ACB'ye tercih ediyor<\/li>\n<\/ul>\n<p><strong>\u015eu durumlarda ACB'ye ge\u00e7in:<\/strong>:<\/p>\n<ul>\n<li>Ak\u0131m &gt; 1600A (ACB'ler 6300A+'ya kadar uzan\u0131r)<\/li>\n<li>Ar\u0131za s\u00fcresi olmadan bak\u0131m i\u00e7in \u00e7ekmeceli yap\u0131 gerekli<\/li>\n<li>A\u015f\u0131r\u0131 y\u00fcksek ar\u0131za seviyeleri (&gt;100kA) ACB kesme teknolojisi gerektirir<\/li>\n<li>Uygulama, g\u00f6r\u00fcn\u00fcr kontak ayr\u0131m\u0131 veya kapsaml\u0131 yard\u0131mc\u0131 kontaklar gerektiriyor<\/li>\n<\/ul>\n<h3>B\u00fcy\u00fck G\u00f6vde Ne Zaman Se\u00e7ilir<\/h3>\n<ul>\n<li><strong>Y\u00fck ak\u0131m\u0131<\/strong> 630-1600A<\/li>\n<li><strong>Ar\u0131za seviyesi<\/strong> 50-150kA<\/li>\n<li><strong>Uygulama<\/strong> ana giri\u015fler, \u015falt cihazlar\u0131 veya kritik da\u011f\u0131t\u0131m noktalar\u0131n\u0131 i\u00e7erir<\/li>\n<li><strong>Geli\u015fmi\u015f koruma<\/strong> (\u00f6l\u00e7\u00fcm, ileti\u015fim, toprak ar\u0131zas\u0131) gereklidir<\/li>\n<li><strong>B\u00fct\u00e7e ve alan<\/strong> MCCB teknolojisini ACB teknolojisine tercih ediyor<\/li>\n<\/ul>\n<h2>MCCB De\u011fer Plakalar\u0131 Nas\u0131l Okunur<\/h2>\n<p>Her IEC uyumlu MCCB, kritik spesifikasyon verilerini g\u00f6r\u00fcnt\u00fcleyen bir de\u011fer plakas\u0131 (etiket) ta\u015f\u0131r. Bu bilgileri nas\u0131l \u00e7\u00f6zece\u011finizi anlamak, kesicileri do\u011fru se\u00e7menizi, kurman\u0131z\u0131 ve bak\u0131m\u0131n\u0131 yapman\u0131z\u0131 sa\u011flar.<\/p>\n<h3>Temel Etiket Bilgileri<\/h3>\n<p>Tipik bir MCCB de\u011fer plakas\u0131 \u015funlar\u0131 i\u00e7erir:<\/p>\n<ul>\n<li><strong>1. \u00dcretici ve Model<\/strong>: Marka ad\u0131 ve \u00fcr\u00fcn serisi (\u00f6rne\u011fin, \u201cVIOX VMC3-630\u201d)<\/li>\n<li><strong>2. IEC Standard\u0131 \u0130\u015fareti<\/strong>: \u201cIEC 60947-2\u201d veya \u201cEN 60947-2\u201d uyumlulu\u011fu onaylar<\/li>\n<li><strong>3. Anma Ak\u0131m\u0131 (In)<\/strong>: Kesicinin referans ortamdaki (40\u00b0C) nominal ak\u0131m de\u011feri<\/li>\n<li><strong>4. Anma Gerilimi (Ue)<\/strong>: \u00c7al\u0131\u015fma gerilimi de\u011feri (\u00f6rne\u011fin, 690V AC, 250V DC)<\/li>\n<li><strong>5. Kesme Kapasitesi (Icu \/ Ics)<\/strong>: kA cinsinden Icu (Nihai) ve Ics (Servis) s\u0131n\u0131rlar\u0131<\/li>\n<li><strong>6. Kullan\u0131m Kategorisi<\/strong>: Kategori A (an\u0131nda) veya Kategori B (zaman gecikmeli)<\/li>\n<li><strong>7. Anma Yal\u0131t\u0131m Gerilimi (Ui)<\/strong>: Maksimum sistem gerilimi dayan\u0131m\u0131<\/li>\n<li><strong>8. Anma Darbe Dayan\u0131m Gerilimi (Uimp)<\/strong>: A\u015f\u0131r\u0131 gerilim ba\u011f\u0131\u015f\u0131kl\u0131\u011f\u0131 (\u00f6rne\u011fin, 8kV)<\/li>\n<li><strong>9. Kutuplar ve Yap\u0131land\u0131rma<\/strong>: 3P veya 4P<\/li>\n<li><strong>10. A\u00e7ma Ayarlar\u0131<\/strong>: Ir, Isd, Ii i\u00e7in aral\u0131klar (ayarlanabilirse)<\/li>\n<li><strong>11. Sertifikalar<\/strong>: CE, CCC, UL i\u015faretleri<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-rating-plate-example-showing-all-specifications.webp\" alt=\"MCCB Rating Plate Example showing all specifications\" \/><figcaption>\u015eekil 3: Temel \u00f6zellikleri g\u00f6steren ayr\u0131nt\u0131l\u0131 MCCB de\u011fer plakas\u0131: In (anma ak\u0131m\u0131), Ue (\u00e7al\u0131\u015fma gerilimi), Icu\/Ics (kesme kapasitesi), IEC 60947-2 uyumlulu\u011fu, a\u00e7ma ayarlar\u0131 ve sertifika i\u015faretleri. Kurulumdan \u00f6nce her zaman bu parametrelerin tasar\u0131m gereksinimlerinizle e\u015fle\u015fti\u011fini do\u011frulay\u0131n.<\/figcaption><\/figure>\n<h3>Kurulumdan \u00d6nce Ne Do\u011frulanmal\u0131<\/h3>\n<ol>\n<li><strong>In \u2265 hesaplanan y\u00fck ak\u0131m\u0131<\/strong> (uygulanabilirse s\u0131cakl\u0131k\/grupland\u0131rma i\u00e7in azaltma ile)<\/li>\n<li><strong>Ue = sistem gerilimi<\/strong> (e\u015fle\u015fmeli; 400V kesici 690V sistemi koruyamaz)<\/li>\n<li><strong>Icu \u2265 prospective fault current<\/strong> kurulum noktas\u0131nda<\/li>\n<li><strong>Ics uygun<\/strong> uygulama i\u00e7in (en kritik uygulamalar i\u00e7in -100)<\/li>\n<li><strong>Kutuplar sistemle e\u015fle\u015fiyor<\/strong>: \u00dc\u00e7 faz i\u00e7in 3P, n\u00f6tr korumas\u0131 gerekiyorsa 4P<\/li>\n<li><strong>A\u00e7ma ayarlar\u0131<\/strong> (ayarlanabilirse) koordinasyon \u00e7al\u0131\u015fmas\u0131na g\u00f6re yap\u0131land\u0131r\u0131lm\u0131\u015f<\/li>\n<li><strong>Sertifikalar<\/strong> kurulum b\u00f6lgesi i\u00e7in ge\u00e7erli<\/li>\n<\/ol>\n<h2>Uygulamaya G\u00f6re Se\u00e7im K\u0131lavuzu<\/h2>\n<p>Do\u011fru MCCB ak\u0131m de\u011ferini se\u00e7mek, \u00f6zel uygulaman\u0131za, y\u00fck tipinize, ar\u0131za seviyenize ve koordinasyon gereksinimlerinize ba\u011fl\u0131d\u0131r.<\/p>\n<h3>H\u0131zl\u0131 Se\u00e7im Tablosu<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>Uygulama<\/strong><\/td>\n<td><strong>Y\u00fck Ak\u0131m\u0131<\/strong><\/td>\n<td><strong>\u00d6nerilen MCCB De\u011feri<\/strong><\/td>\n<td><strong>Tipik Icu<\/strong><\/td>\n<\/tr>\n<tr>\n<td>K\u00fc\u00e7\u00fck motor (7.5kW)<\/td>\n<td>15A<\/td>\n<td><strong>20A veya 25A<\/strong><\/td>\n<td>25-36kA<\/td>\n<\/tr>\n<tr>\n<td>Orta boy motor (30kW)<\/td>\n<td>57A<\/td>\n<td><strong>63A veya 80A<\/strong><\/td>\n<td>36-50kA<\/td>\n<\/tr>\n<tr>\n<td>B\u00fcy\u00fck motor (110kW)<\/td>\n<td>200A<\/td>\n<td><strong>250A<\/strong><\/td>\n<td>50-65kA<\/td>\n<\/tr>\n<tr>\n<td>Ofis kat\u0131 beslemesi<\/td>\n<td>180A<\/td>\n<td><strong>200A veya 250A<\/strong><\/td>\n<td>36-50kA<\/td>\n<\/tr>\n<tr>\n<td>Bina tali panosu<\/td>\n<td>450A<\/td>\n<td><strong>500A veya 630A<\/strong><\/td>\n<td>50-65kA<\/td>\n<\/tr>\n<tr>\n<td>K\u00fc\u00e7\u00fck servis giri\u015fi<\/td>\n<td>650A<\/td>\n<td><strong>800A<\/strong><\/td>\n<td>65-85kA<\/td>\n<\/tr>\n<tr>\n<td>End\u00fcstriyel ana giri\u015f<\/td>\n<td>1200A<\/td>\n<td><strong>1250A veya 1600A<\/strong><\/td>\n<td>85-100kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kritik Se\u00e7im Hat\u0131rlatmalar\u0131<\/h3>\n<ol>\n<li><strong>In de\u011ferini asla d\u00fc\u015f\u00fck se\u00e7meyin<\/strong>: Bir devre kesici, anma de\u011ferinin '\u0131n\u0131 s\u00fcrekli olarak ta\u015f\u0131d\u0131\u011f\u0131nda a\u015f\u0131r\u0131 \u0131s\u0131n\u0131r ve bozulur<\/li>\n<li><strong>Her zaman Icu de\u011ferini do\u011frulay\u0131n<\/strong>: Yetersiz kesme kapasitesi, ar\u0131zalar s\u0131ras\u0131nda feci devre kesici ar\u0131zas\u0131na neden olabilir<\/li>\n<li><strong>Ortam s\u0131cakl\u0131\u011f\u0131n\u0131 kontrol edin<\/strong>: Standart de\u011ferler 40\u00b0C'yi varsayar; daha y\u00fcksek s\u0131cakl\u0131klar i\u00e7in de\u011feri d\u00fc\u015f\u00fcr\u00fcn (50\u00b0C'de 0,9x, 60\u00b0C'de 0,8x)<\/li>\n<li><strong>Zaman-ak\u0131m e\u011frilerini koordine edin<\/strong>: T\u00fcm da\u011f\u0131t\u0131m sistemi genelinde se\u00e7icili\u011fi do\u011frulamak i\u00e7in \u00fcretici yaz\u0131l\u0131m\u0131n\u0131 kullan\u0131n<\/li>\n<li><strong>Gelecekteki b\u00fcy\u00fcmeyi g\u00f6z \u00f6n\u00fcnde bulundurun<\/strong>: Tesis geni\u015flemesi i\u00e7in In de\u011ferinde -25 marj belirtin<\/li>\n<\/ol>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-selection-decision-flowchart.webp\" alt=\"MCCB Selection Decision Flowchart\" \/><figcaption>\u015eekil 5: Y\u00fck ak\u0131m\u0131na g\u00f6re \u00e7er\u00e7eve boyutu belirlenmesine, ard\u0131ndan kesme kapasitesi do\u011frulamas\u0131, servis de\u011feri kontrol\u00fc ve koordinasyon analizine rehberlik eden MCCB se\u00e7im ak\u0131\u015f \u015femas\u0131. Uygulaman\u0131z i\u00e7in uygun devre kesici spesifikasyonunu sa\u011flamak i\u00e7in bu sistematik yakla\u015f\u0131m\u0131 kullan\u0131n.<\/figcaption><\/figure>\n<h2>Sonu\u00e7<\/h2>\n<p>16A'dan 1600A'e kadar standart MCCB ak\u0131m de\u011ferleri, modern elektrik da\u011f\u0131t\u0131m sistemlerinin temelini olu\u015fturur. \u00c7er\u00e7eve boyutlar\u0131, ak\u0131m de\u011ferleri ve kesme kapasiteleri aras\u0131ndaki ili\u015fkiyi anlamak, ekipman\u0131 koruyan, sistem koordinasyonunu sa\u011flayan ve IEC 60947-2 g\u00fcvenlik standartlar\u0131n\u0131 kar\u015f\u0131layan devre kesicileri belirtmenize olanak tan\u0131r.<\/p>\n<p>Key takeaways:<\/p>\n<ul>\n<li><strong>In de\u011ferini y\u00fck gereksinimleriyle e\u015fle\u015ftirin<\/strong> b\u00fcy\u00fcme ve de\u011fer d\u00fc\u015f\u00fcrme i\u00e7in -25 marj ile<\/li>\n<li><strong>Icu de\u011ferini ar\u0131za \u00e7al\u0131\u015fmalar\u0131na g\u00f6re do\u011frulay\u0131n<\/strong>\u2014asla yetersiz kesme kapasitesine sahip bir devre kesici kurmay\u0131n<\/li>\n<li><strong>\u00c7er\u00e7eve boyutunu ak\u0131ll\u0131ca se\u00e7in<\/strong>\u2014\u226450kA \/ \u2264250A i\u00e7in k\u00fc\u00e7\u00fck \u00e7er\u00e7eveler, 30-85kA \/ 250-630A i\u00e7in orta \u00e7er\u00e7eveler, 50-150kA \/ 630-1600A i\u00e7in b\u00fcy\u00fck \u00e7er\u00e7eveler<\/li>\n<li><strong>De\u011fer plakalar\u0131n\u0131 dikkatlice okuyun<\/strong>\u2014kurulumdan \u00f6nce In, Ue, Icu, Ics, kutuplar ve sertifikalar\u0131 onaylay\u0131n<\/li>\n<li><strong>Sistem \u00e7al\u0131\u015fmalar\u0131yla koordine edin<\/strong>\u2014da\u011f\u0131t\u0131m hiyerar\u015fisi genelinde se\u00e7icili\u011fi sa\u011flamak i\u00e7in zaman-ak\u0131m e\u011frilerini kullan\u0131n<\/li>\n<\/ul>\n<p>\u0130ster 63A'l\u0131k bir devre kesici ile 30kW'l\u0131k bir motoru koruyor olun, ister end\u00fcstriyel bir tesis i\u00e7in 1600A'l\u0131k bir ana giri\u015fi belirtiyor olun, prensipler ayn\u0131 kal\u0131r: do\u011fru y\u00fck hesab\u0131, uygun kesme kapasitesi ve do\u011frulanm\u0131\u015f koordinasyon.<\/p>\n<hr \/>\n<p><strong>Projeniz i\u00e7in do\u011fru MCCB'yi se\u00e7me konusunda yard\u0131ma m\u0131 ihtiyac\u0131n\u0131z var?<\/strong> VIOX Electric, 16A'dan 1600A'e kadar t\u00fcm standart de\u011ferlerde IEC 60947-2 uyumlu MCCB'ler \u00fcretmektedir. M\u00fchendislik ekibimiz, devre kesici se\u00e7imi, koordinasyon \u00e7al\u0131\u015fmalar\u0131 ve sistem tasar\u0131m\u0131 i\u00e7in teknik destek sa\u011flamaktad\u0131r. <a href=\"#\">Spesifikasyonlar ve teknik dan\u0131\u015fmanl\u0131k i\u00e7in bizimle ileti\u015fime ge\u00e7in.<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Selecting the right molded case circuit breaker (MCCB) starts with understanding standard breaker sizes. Unlike miniature circuit breakers (MCBs) that protect final circuits, MCCBs cover a much wider current range\u2014from 16A branch feeders to 1600A main incomers\u2014and choosing the correct rating directly impacts system safety, coordination, and project costs. This guide maps the complete IEC [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20574,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-20573","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/20573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/comments?post=20573"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/20573\/revisions"}],"predecessor-version":[{"id":20578,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/20573\/revisions\/20578"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media\/20574"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media?parent=20573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/categories?post=20573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/tags?post=20573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}