{"id":5648,"date":"2026-06-29T18:18:12","date_gmt":"2026-06-29T18:18:12","guid":{"rendered":"https:\/\/enerma.com.tr\/?p=5648"},"modified":"2026-06-29T18:18:13","modified_gmt":"2026-06-29T18:18:13","slug":"otomatik-sigorta-nasil-secilir-2026-rehberi","status":"publish","type":"post","link":"https:\/\/enerma.com.tr\/en\/otomatik-sigorta-nasil-secilir-2026-rehberi\/","title":{"rendered":"How to Choose the Right Miniature Circuit Breaker (MCB) (2026 Guide)"},"content":{"rendered":"<h2 class=\"wp-block-wd-title title wd-6a14a013\">Giri\u015f<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-101d56cc\">Elektrik tesisatlar\u0131nda g\u00fcvenli\u011fin temelini olu\u015fturan ekipmanlardan biri otomatik sigortalard\u0131r (MCB). Do\u011fru se\u00e7ilmeyen bir sigorta, hem cihazlar\u0131n zarar g\u00f6rmesine hem de elektrik tesisat\u0131nda ciddi g\u00fcvenlik sorunlar\u0131na yol a\u00e7abilir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-cc6b65b9\">Bu rehberde otomatik sigorta se\u00e7erken dikkat edilmesi gereken t\u00fcm kriterleri, B-C-D e\u011frileri aras\u0131ndaki farklar\u0131, amper se\u00e7imini ve en s\u0131k yap\u0131lan hatalar\u0131 detayl\u0131 \u015fekilde inceleyece\u011fiz.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-ea2ab67b\">\u0130\u00e7indekiler<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Otomatik Sigorta Nedir?<\/li>\n\n\n\n<li>Otomatik Sigorta Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/li>\n\n\n\n<li>Amper De\u011feri Nas\u0131l Se\u00e7ilir?<\/li>\n\n\n\n<li>B, C ve D E\u011frisi Nedir?<\/li>\n\n\n\n<li>Kesme Kapasitesi (kA) Ne Anlama Gelir?<\/li>\n\n\n\n<li>1P, 2P, 3P ve 4P Sigortalar<\/li>\n\n\n\n<li>Otomatik Sigorta Se\u00e7erken Dikkat Edilecekler<\/li>\n\n\n\n<li>S\u0131k Sorulan Sorular<\/li>\n\n\n\n<li>Sonu\u00e7<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-86016335\">Otomatik Sigorta Nedir?<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b36d33d5\">Otomatik sigorta (MCB &#8211; Miniature Circuit Breaker), elektrik tesisat\u0131n\u0131 a\u015f\u0131r\u0131 ak\u0131m ve k\u0131sa devre gibi tehlikeli durumlara kar\u015f\u0131 koruyan elektromekanik bir koruma cihaz\u0131d\u0131r. Normal \u00e7al\u0131\u015fma s\u0131ras\u0131nda elektri\u011fin kesintisiz \u015fekilde iletilmesini sa\u011flar, ancak ak\u0131m g\u00fcvenli s\u0131n\u0131rlar\u0131n \u00fczerine \u00e7\u0131kt\u0131\u011f\u0131nda devreyi otomatik olarak a\u00e7arak kablolar\u0131, elektrikli cihazlar\u0131 ve kullan\u0131c\u0131lar\u0131 korur.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fb35c0ae\">Geleneksel cam sigortalardan farkl\u0131 olarak otomatik sigortalar, ar\u0131za giderildikten sonra yeniden devreye al\u0131nabilir. Bu \u00f6zellik hem kullan\u0131m kolayl\u0131\u011f\u0131 sa\u011flar hem de bak\u0131m maliyetlerini azalt\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4fb1fedd\">G\u00fcn\u00fcm\u00fczde konutlardan end\u00fcstriyel tesislere kadar hemen her elektrik panosunda otomatik sigortalar kullan\u0131lmaktad\u0131r. Do\u011fru se\u00e7ilmi\u015f bir otomatik sigorta, elektrik tesisat\u0131n\u0131n g\u00fcvenli ve uzun \u00f6m\u00fcrl\u00fc \u00e7al\u0131\u015fmas\u0131n\u0131n temel unsurlar\u0131ndan biridir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-40d56b0a\">\ud83d\udca1 <strong>Bilmeniz Gereken:<\/strong><br>Otomatik sigortalar yaln\u0131zca k\u0131sa devreye kar\u015f\u0131 de\u011fil, ayn\u0131 zamanda a\u015f\u0131r\u0131 y\u00fcklenmeye kar\u015f\u0131 da koruma sa\u011flar. Ancak elektrik \u00e7arpmas\u0131na kar\u015f\u0131 koruma sa\u011flamazlar. \u0130nsan hayat\u0131n\u0131 korumak i\u00e7in mutlaka <strong>ka\u00e7ak ak\u0131m koruma r\u00f6lesi<\/strong> ile birlikte kullan\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-8289dd68\">Otomatik Sigorta Nas\u0131l \u00c7al\u0131\u015f\u0131r?<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d5c2d5db\">Otomatik sigortalar, elektrik tesisat\u0131ndan ge\u00e7en ak\u0131m\u0131 s\u00fcrekli olarak izleyen iki farkl\u0131 koruma mekanizmas\u0131na sahiptir: <strong>termik koruma<\/strong> ve <strong>manyetik koruma<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-896559f7\"><strong>Termik koruma<\/strong>, hattan uzun s\u00fcre boyunca sigortan\u0131n ta\u015f\u0131yabilece\u011finden daha y\u00fcksek ak\u0131m ge\u00e7ti\u011finde devreye girer. Sigortan\u0131n i\u00e7erisindeki bimetal \u015ferit \u0131s\u0131narak e\u011filir ve belirli bir s\u00fcre sonunda mekanizmay\u0131 tetikleyerek devreyi a\u00e7ar. Bu sayede kablolar\u0131n a\u015f\u0131r\u0131 \u0131s\u0131nmas\u0131 ve yang\u0131n riski \u00f6nlenmi\u015f olur.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4985add1\"><strong>Manyetik koruma<\/strong> ise ani k\u0131sa devre durumlar\u0131nda \u00e7al\u0131\u015f\u0131r. K\u0131sa devre olu\u015ftu\u011funda ak\u0131m \u00e7ok y\u00fcksek seviyelere \u00e7\u0131kar ve sigorta i\u00e7erisindeki elektrom\u0131knat\u0131s milisaniyeler i\u00e7erisinde devreyi keserek tesisat\u0131 ve ba\u011fl\u0131 cihazlar\u0131 korur.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9f3eb353\">Bu iki koruma sistemi sayesinde otomatik sigortalar hem <strong>uzun s\u00fcreli a\u015f\u0131r\u0131 y\u00fcklenmelere<\/strong> hem de <strong>ani k\u0131sa devrelere<\/strong> kar\u015f\u0131 etkili koruma sa\u011flar.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c0ab1a50\">Bilmeniz Gereken<br>\u26a1 <strong>Otomatik sigortalar, elektrik ka\u00e7a\u011f\u0131n\u0131 alg\u0131lamaz.<\/strong> Ka\u00e7ak ak\u0131mlara kar\u015f\u0131 koruma sa\u011flamak i\u00e7in elektrik panosunda ayr\u0131ca <strong>Ka\u00e7ak Ak\u0131m Koruma R\u00f6lesi (RCCB)<\/strong> veya <strong>Ka\u00e7ak Ak\u0131m Korumal\u0131 Otomatik Sigorta (RCBO)<\/strong> kullan\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-f77d216b\">Amper De\u011feri Nas\u0131l Se\u00e7ilir?<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d6b0023a\">Otomatik sigorta se\u00e7iminde ilk dikkat edilmesi gereken kriter amper de\u011feridir. Sigortan\u0131n amperi, koruyaca\u011f\u0131 elektrik hatt\u0131n\u0131n ta\u015f\u0131yabilece\u011fi ak\u0131ma uygun olmal\u0131d\u0131r. Gere\u011finden y\u00fcksek amperli bir sigorta kullan\u0131lmas\u0131, kablolar\u0131n a\u015f\u0131r\u0131 \u0131s\u0131nmas\u0131na ve yang\u0131n riskine neden olabilir. Gere\u011finden d\u00fc\u015f\u00fck amperli bir sigorta ise normal kullan\u0131m s\u0131ras\u0131nda s\u00fcrekli a\u00e7arak sistemin verimsiz \u00e7al\u0131\u015fmas\u0131na yol a\u00e7ar.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fbfccb4d\">Konutlarda ayd\u0131nlatma hatlar\u0131nda genellikle 10A, priz devrelerinde ise 16A otomatik sigortalar tercih edilir. Klima, elektrikli \u015fofben ve benzeri y\u00fcksek g\u00fc\u00e7l\u00fc cihazlarda ise cihaz\u0131n \u00e7ekti\u011fi ak\u0131ma uygun daha y\u00fcksek amperli sigortalar kullan\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-6a614cd4\">B E\u011frisi, C E\u011frisi ve D E\u011frisi Aras\u0131ndaki Farklar<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-70f71035\">Otomatik sigortalar yaln\u0131zca amper de\u011ferlerine g\u00f6re de\u011fil, a\u00e7ma karakteristiklerine g\u00f6re de s\u0131n\u0131fland\u0131r\u0131l\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-066499a8\"><strong>B E\u011frisi<\/strong> sigortalar d\u00fc\u015f\u00fck kalk\u0131\u015f ak\u0131m\u0131 \u00e7eken y\u00fcklerde kullan\u0131l\u0131r. Ayd\u0131nlatma devreleri ve konut uygulamalar\u0131 i\u00e7in idealdir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d01770d4\"><strong>C E\u011frisi<\/strong> sigortalar orta seviyede kalk\u0131\u015f ak\u0131m\u0131 olu\u015fturan cihazlar i\u00e7in geli\u015ftirilmi\u015ftir. Elektrik motorlar\u0131, priz devreleri ve ticari uygulamalarda en yayg\u0131n kullan\u0131lan tiptir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-64688b93\"><strong>D E\u011frisi<\/strong> sigortalar ise y\u00fcksek kalk\u0131\u015f ak\u0131m\u0131 olu\u015fturan b\u00fcy\u00fck motorlar, trafolar ve end\u00fcstriyel makinelerde tercih edilir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-11dcd5c1\">Yanl\u0131\u015f e\u011fri se\u00e7imi, sigortan\u0131n gereksiz yere a\u00e7mas\u0131na veya koruman\u0131n yetersiz kalmas\u0131na neden olabilir.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-0564402a\">Kesme Kapasitesi (kA) Nedir?<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-cae1de12\">Kesme kapasitesi, otomatik sigortan\u0131n olu\u015fabilecek k\u0131sa devre ak\u0131m\u0131n\u0131 g\u00fcvenli \u015fekilde kesebilece\u011fi maksimum de\u011feri ifade eder.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6196dc13\">Konutlarda en yayg\u0131n olarak <strong>6 kA<\/strong> kesme kapasiteli sigortalar kullan\u0131lmaktad\u0131r. Sanayi tesisleri ve k\u0131sa devre ak\u0131m\u0131n\u0131n y\u00fcksek oldu\u011fu b\u00f6lgelerde ise <strong>10 kA<\/strong> veya daha y\u00fcksek kesme kapasiteli modeller tercih edilir.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2ea07155\">Elektrik tesisat\u0131n\u0131n k\u0131sa devre seviyesine uygun olmayan sigortalar ciddi g\u00fcvenlik riskleri olu\u015fturabilir.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-78eb2021\">1P, 2P, 3P ve 4P Otomatik Sigortalar<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4a20face\">Otomatik sigortalar faz say\u0131s\u0131na g\u00f6re farkl\u0131 kutup say\u0131lar\u0131na sahiptir.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1P:<\/strong> Tek fazl\u0131 hatlar\u0131n korunmas\u0131nda kullan\u0131l\u0131r.<\/li>\n\n\n\n<li><strong>2P:<\/strong> Faz ve n\u00f6tr\u00fc birlikte keser.<\/li>\n\n\n\n<li><strong>3P:<\/strong> \u00dc\u00e7 fazl\u0131 motor ve makinelerde kullan\u0131l\u0131r.<\/li>\n\n\n\n<li><strong>4P:<\/strong> \u00dc\u00e7 faz ve n\u00f6tr\u00fc ayn\u0131 anda keserek tam koruma sa\u011flar.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-78414187\">Do\u011fru kutup say\u0131s\u0131n\u0131n se\u00e7ilmesi hem g\u00fcvenlik hem de y\u00f6netmeliklere uygunluk a\u00e7\u0131s\u0131ndan \u00f6nemlidir.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-730ebd5c\">Otomatik Sigorta Se\u00e7erken Dikkat Edilecekler<br><\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ab8e44f5\">Do\u011fru otomatik sigorta se\u00e7imi i\u00e7in a\u015fa\u011f\u0131daki kriterler mutlaka de\u011ferlendirilmelidir:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kullan\u0131lacak sistemin tek faz m\u0131 \u00fc\u00e7 faz m\u0131 oldu\u011fu<\/li>\n\n\n\n<li>Hat ak\u0131m\u0131na uygun amper de\u011feri<\/li>\n\n\n\n<li>Y\u00fck\u00fcn kalk\u0131\u015f ak\u0131m\u0131na uygun B, C veya D e\u011frisi<\/li>\n\n\n\n<li>Tesisata uygun kesme kapasitesi (kA)<\/li>\n\n\n\n<li>G\u00fcvenilir ve sertifikal\u0131 marka tercihi<\/li>\n\n\n\n<li>\u0130lgili standartlara uygunluk<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-94bd47b3\">Bu kriterlere dikkat edilmesi elektrik tesisat\u0131n\u0131n uzun \u00f6m\u00fcrl\u00fc ve g\u00fcvenli \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-2a456b66\">Sonu\u00e7<br><\/h2>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-8c2a9cf4\">Otomatik sigorta ile cam sigorta aras\u0131ndaki fark nedir?<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ee5da4fe\">Otomatik sigortalar a\u00e7t\u0131ktan sonra tekrar kullan\u0131labilir. Cam sigortalar ise att\u0131ktan sonra de\u011fi\u015ftirilmek zorundad\u0131r.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-bdabf958\">Evlerde en \u00e7ok hangi otomatik sigorta kullan\u0131l\u0131r?<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fc4490c3\">Konutlarda en yayg\u0131n olarak 10A ve 16A C e\u011frisi otomatik sigortalar tercih edilmektedir.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-a9aa5241\">B e\u011frisi mi C e\u011frisi mi tercih edilmelidir?<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d0a21d5a\">Ayd\u0131nlatma devrelerinde genellikle B e\u011frisi, priz devrelerinde ve genel konut uygulamalar\u0131nda ise C e\u011frisi tercih edilir.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-53aef2cf\">Otomatik sigorta neden s\u00fcrekli atar?<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5475a2fd\">A\u015f\u0131r\u0131 y\u00fcklenme, k\u0131sa devre, ar\u0131zal\u0131 cihazlar veya tesisattaki izolasyon problemleri sigortan\u0131n s\u00fcrekli a\u00e7mas\u0131na neden olabilir.<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":5651,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/enerma.com.tr\/wp-content\/uploads\/2026\/06\/sigorta-secimi.png","fifu_image_alt":"","footnotes":""},"categories":[1423],"tags":[],"class_list":["post-5648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektrik-rehberi"],"_links":{"self":[{"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/posts\/5648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/comments?post=5648"}],"version-history":[{"count":1,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/posts\/5648\/revisions"}],"predecessor-version":[{"id":5650,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/posts\/5648\/revisions\/5650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/media\/5651"}],"wp:attachment":[{"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/media?parent=5648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/categories?post=5648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enerma.com.tr\/en\/wp-json\/wp\/v2\/tags?post=5648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}