{"id":491,"date":"2026-10-06T12:30:07","date_gmt":"2026-10-06T12:30:07","guid":{"rendered":"https:\/\/otomasiplcbandung.com\/?p=491"},"modified":"2026-10-07T01:35:47","modified_gmt":"2026-10-07T01:35:47","slug":"mccb-dan-mcb","status":"publish","type":"post","link":"https:\/\/otomasiplcbandung.com\/?p=491","title":{"rendered":"MCCB DAN MCB"},"content":{"rendered":"\n

MCB dan MCCB sebagai Pengaman Awal Panel Listrik<\/h2>\n\n\n\n

1. Dari mana aliran listrik dimulai?<\/h3>\n\n\n\n

Secara sederhana, kita dapat menggambarkan aliran listrik pada sebuah panel kontrol seperti berikut:<\/p>\n\n\n\n

SUMBER LISTRIK\n      \u2502\n      \u25bc\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 MCB \/ MCCB    \u2502  \u2190 Proteksi & pemutusan\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n        \u2502\n        \u25bc\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 DISTRIBUSI     \u2502\n\u2502 PANEL \/ BUSBAR \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n        \u2502\n   \u250c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n   \u2502    \u2502               \u2502\n   \u25bc    \u25bc               \u25bc\nPOWER  KONTAKTOR      POWER\nSUPPLY                 CIRCUIT\n   \u2502    \u2502\n   \u25bc    \u25bc\n PLC   MOTOR\n<\/code><\/pre>\n\n\n\n
Jadi, secara konsep, MCB\/MCCB berada di bagian awal setelah sumber listrik masuk ke panel<\/strong>, kemudian energi listrik didistribusikan menuju rangkaian-rangkaian yang membutuhkan suplai.<\/p>\n\n\n\n
Namun, susunan panel nyata dapat berbeda tergantung desain, sistem pentanahan, kebutuhan proteksi, standar, dan jenis peralatannya.<\/p>\n\n\n\n
\n\n\n\n
2. Apa itu MCB?<\/h1>\n\n\n\n
MCB (Miniature Circuit Breaker)<\/strong> adalah perangkat pemutus dan proteksi yang digunakan pada rangkaian listrik dengan kapasitas tertentu.<\/p>\n\n\n\n
MCB dapat membantu melindungi rangkaian dari kondisi seperti:<\/p>\n\n\n\n
    \n
  • Overload<\/strong> atau beban lebih.<\/li>\n\n\n\n
  • Short circuit<\/strong> atau hubung singkat.<\/li>\n<\/ul>\n\n\n\n
    Ketika kondisi gangguan menyebabkan arus melebihi karakteristik MCB, mekanisme proteksinya dapat memutus rangkaian.<\/p>\n\n\n\n
    \n\n\n\n
    3. Apa itu MCCB?<\/h1>\n\n\n\n
    MCCB (Molded Case Circuit Breaker)<\/strong> juga merupakan circuit breaker, tetapi umumnya digunakan untuk arus dan kapasitas instalasi yang lebih besar<\/strong> dibandingkan MCB.<\/p>\n\n\n\n
    MCCB banyak digunakan pada:<\/p>\n\n\n\n
      \n
    • Panel utama.<\/li>\n\n\n\n
    • Panel distribusi.<\/li>\n\n\n\n
    • Mesin industri.<\/li>\n\n\n\n
    • Panel motor.<\/li>\n\n\n\n
    • Sistem dengan kebutuhan arus lebih besar.<\/li>\n<\/ul>\n\n\n\n
      Beberapa MCCB juga menyediakan pengaturan karakteristik proteksi yang lebih luas dibandingkan MCB, tergantung jenisnya.<\/p>\n\n\n\n
      \n\n\n\n
      4. Perbedaan MCB dan MCCB<\/h1>\n\n\n\n
      Secara sederhana:<\/p>\n\n\n\n
      MCB<\/th>MCCB<\/th><\/tr><\/thead>
      Umumnya untuk rangkaian dengan kapasitas lebih kecil<\/td>Umumnya untuk kapasitas yang lebih besar<\/td><\/tr>
      Bentuk relatif lebih kecil<\/td>Bentuk relatif lebih besar<\/td><\/tr>
      Banyak digunakan pada sirkuit cabang<\/td>Banyak digunakan pada panel utama\/distribusi dan aplikasi industri<\/td><\/tr>
      Pilihan rating dan fitur lebih terbatas<\/td>Pilihan rating dan fitur umumnya lebih luas<\/td><\/tr>
      Cocok untuk berbagai rangkaian kontrol dan distribusi kecil<\/td>Cocok untuk distribusi dan beban yang lebih besar<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      Tetapi jangan menentukan pilihan hanya berdasarkan \u201cMCB kecil, MCCB besar\u201d. Pemilihannya harus berdasarkan arus beban, kemampuan hubung singkat, karakteristik proteksi, koordinasi proteksi, dan persyaratan instalasi<\/strong>.<\/p>\n\n\n\n
      \n\n\n\n
      5. MCB\/MCCB bukan kontaktor<\/h1>\n\n\n\n
      Ini sangat penting untuk siswa.<\/p>\n\n\n\n
      MCB\/MCCB dan kontaktor mempunyai fungsi berbeda.<\/strong><\/p>\n\n\n\n
      MCB\/MCCB<\/h3>\n\n\n\n
      Fungsi utamanya adalah proteksi dan pemutusan rangkaian<\/strong>.<\/p>\n\n\n\n
      Kontaktor<\/h3>\n\n\n\n
      Fungsi utamanya adalah switching\/pengendalian beban secara elektromagnetik<\/strong>.<\/p>\n\n\n\n
      Contohnya:<\/p>\n\n\n\n
                    PANEL\n                \u2502\n                \u25bc\n          \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n          \u2502 MCB\/MCCB  \u2502\n          \u2514\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                \u2502\n                \u25bc\n          \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n          \u2502 KONTAKTOR \u2502\n          \u2514\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                \u2502\n                \u25bc\n              MOTOR\n<\/code><\/pre>\n\n\n\n
      MCB\/MCCB bukan dirancang sebagai pengganti kontaktor untuk operasi ON\/OFF motor secara berulang.<\/p>\n\n\n\n
      \n\n\n\n
      6. Hubungan MCB\/MCCB dengan TOR<\/h1>\n\n\n\n
      Sekarang kita hubungkan dengan materi yang sudah kita pelajari.<\/p>\n\n\n\n
      SUMBER\n  \u2502\n  \u25bc\nMCB \/ MCCB\n  \u2502\n  \u25bc\nKONTAKTOR\n  \u2502\n  \u25bc\nTHERMAL OVERLOAD RELAY\n  \u2502\n  \u25bc\nMOTOR\n<\/code><\/pre>\n\n\n\n
      Masing-masing mempunyai tugas:<\/p>\n\n\n\n
      MCB\/MCCB \u2192 proteksi rangkaian terhadap gangguan seperti overload\/short circuit sesuai karakteristiknya<\/strong><\/p>\n\n\n\n
      Kontaktor \u2192 mengendalikan ON\/OFF motor<\/strong><\/p>\n\n\n\n
      TOR \u2192 proteksi motor terhadap overload sesuai karakteristik dan settingnya<\/strong><\/p>\n\n\n\n
      Motor \u2192 beban yang menjalankan pekerjaan mekanis<\/strong><\/p>\n\n\n\n
      Jadi jangan sampai siswa berpikir bahwa TOR dan MCB mempunyai fungsi yang sama.<\/p>\n\n\n\n
      \n\n\n\n
      7. Hubungan dengan PLC<\/h1>\n\n\n\n
      Sekarang kita masukkan PLC ke dalam sistem.<\/p>\n\n\n\n
      Misalnya sebuah panel menggunakan sumber AC untuk beberapa kebutuhan:<\/p>\n\n\n\n
                       SUMBER AC\n                     \u2502\n                     \u25bc\n                \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                \u2502 MCB\/MCCB\u2502\n                \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2518\n                     \u2502\n              DISTRIBUSI PANEL\n                     \u2502\n        \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n        \u2502            \u2502             \u2502\n        \u25bc            \u25bc             \u25bc\n   Power Supply   Kontaktor      Circuit\n    24 VDC           \u2502           lainnya\n        \u2502            \u2502\n        \u25bc            \u25bc\n       PLC           TOR\n                     \u2502\n                     \u25bc\n                   MOTOR\n<\/code><\/pre>\n\n\n\n
      Power supply dapat mengubah AC menjadi 24 VDC<\/strong> untuk kebutuhan PLC dan perangkat DC sesuai desain sistem.<\/p>\n\n\n\n
      PLC kemudian mengendalikan kontaktor melalui rangkaian output yang sesuai.<\/p>\n\n\n\n
      \n\n\n\n
      8. Mengapa MCB\/MCCB diletakkan di bagian awal?<\/h1>\n\n\n\n
      Karena kita ingin mempunyai titik pemutusan dan proteksi<\/strong> untuk rangkaian yang berada setelahnya.<\/p>\n\n\n\n
      Misalnya terjadi gangguan pada salah satu bagian instalasi, perangkat proteksi yang sesuai dapat memutus rangkaian berdasarkan karakteristik proteksinya.<\/p>\n\n\n\n
      Karena itu, ketika siswa melihat panel, jangan hanya melihat PLC dan kontaktor.<\/p>\n\n\n\n
      Biasakan mereka melihat dari sumber menuju beban<\/strong>:<\/p>\n\n\n\n
      SUMBER\n  \u2193\nPROTEKSI\n  \u2193\nDISTRIBUSI\n  \u2193\nKONTROL\n  \u2193\nPROTEKSI BEBAN\n  \u2193\nBEBAN\n<\/code><\/pre>\n\n\n\n
      \n\n\n\n
      9. Contoh panel motor 3 fasa<\/h1>\n\n\n\n
      Untuk pembelajaran, gambaran sederhananya:<\/p>\n\n\n\n
              L1 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n        L2 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n        L3 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n                            \u25bc\n                      \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                      \u2502 MCCB\/MCB \u2502\n                      \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                           \u2502\n                           \u25bc\n                      \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                      \u2502KONTAKTOR \u2502\n                      \u2502   KM1    \u2502\n                      \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                           \u2502\n                           \u25bc\n                      \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                      \u2502   TOR    \u2502\n                      \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n                           \u2502\n                           \u25bc\n                      \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n                      \u2502  MOTOR   \u2502\n                      \u2502 3 FASA   \u2502\n                      \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n\n\n\n
      Untuk sistem kontrol:<\/p>\n\n\n\n
            POWER SUPPLY\n         24 VDC\n            \u2502\n            \u25bc\n           PLC\n            \u2502\n        OUTPUT\n            \u2502\n            \u25bc\n       COIL KM1\n            \u2502\n            \u25bc\n        KONTAKTOR\n            \u2502\n            \u25bc\n          MOTOR\n<\/code><\/pre>\n\n\n\n
      Sementara kontak bantu TOR dapat digunakan untuk memberi sinyal gangguan kepada rangkaian kontrol atau PLC, sesuai desain sistem.<\/p>\n\n\n\n
      \n\n\n\n
      10. Bagaimana dengan grounding\/PE?<\/h1>\n\n\n\n
      Ada satu bagian penting lagi yang jangan dilupakan, yaitu PE (Protective Earth)<\/strong>.<\/p>\n\n\n\n
      Secara konseptual:<\/p>\n\n\n\n
             PANEL\n         \u2502\n      \u250c\u2500\u2500\u2534\u2500\u2500\u2510\n      \u2502 PE  \u2502\n      \u2502BAR  \u2502\n      \u2514\u2500\u2500\u252c\u2500\u2500\u2518\n         \u2502\n         \u25bc\n     Grounding\n<\/code><\/pre>\n\n\n\n
      PE digunakan untuk keselamatan dan harus dirancang sesuai sistem instalasi serta standar yang berlaku.<\/p>\n\n\n\n
      PE bukan pengganti neutral (N).<\/strong><\/p>\n\n\n\n
      Ini merupakan konsep dasar yang sangat penting bagi siswa SMK.<\/p>\n\n\n\n
      \n\n\n\n
      11. Urutan materi yang sekarang sudah lengkap<\/h1>\n\n\n\n
      Sahabatku, setelah kita membahas beberapa komponen tadi, saya rasa urutan bahan ajarnya bisa dibuat sangat bagus:<\/p>\n\n\n\n
      Tingkat 1 \u2014 Dasar listrik<\/h3>\n\n\n\n
        \n
      1. Tegangan<\/li>\n\n\n\n
      2. Arus<\/li>\n\n\n\n
      3. Tahanan<\/li>\n\n\n\n
      4. Daya<\/li>\n\n\n\n
      5. AC dan DC<\/li>\n\n\n\n
      6. Fasa, Netral, dan PE<\/li>\n<\/ol>\n\n\n\n
        Tingkat 2 \u2014 Alat ukur<\/h3>\n\n\n\n
          \n
        1. Voltmeter<\/li>\n\n\n\n
        2. Ampere meter<\/li>\n\n\n\n
        3. Multimeter<\/li>\n\n\n\n
        4. Clamp meter<\/li>\n<\/ol>\n\n\n\n
          Tingkat 3 \u2014 Proteksi dan switching<\/h3>\n\n\n\n
            \n
          1. MCB<\/strong><\/li>\n\n\n\n
          2. MCCB<\/strong><\/li>\n\n\n\n
          3. Fuse<\/li>\n\n\n\n
          4. Switch<\/li>\n\n\n\n
          5. Push button<\/li>\n\n\n\n
          6. Kontaktor magnet<\/li>\n\n\n\n
          7. Thermal Overload Relay<\/li>\n<\/ol>\n\n\n\n
            Tingkat 4 \u2014 Otomasi<\/h3>\n\n\n\n
              \n
            1. Power supply 24 VDC<\/li>\n\n\n\n
            2. PLC<\/li>\n\n\n\n
            3. Input PLC<\/li>\n\n\n\n
            4. Output PLC<\/li>\n\n\n\n
            5. Sensor<\/li>\n\n\n\n
            6. Aktuator<\/li>\n\n\n\n
            7. Ladder Diagram<\/li>\n<\/ol>\n\n\n\n
              Tingkat 5 \u2014 Kendali motor<\/h3>\n\n\n\n
                \n
              1. DOL<\/li>\n\n\n\n
              2. Self holding<\/li>\n\n\n\n
              3. Interlock<\/li>\n\n\n\n
              4. Star-Delta<\/li>\n\n\n\n
              5. Integrasi PLC dengan kontaktor dan motor<\/li>\n<\/ol>\n\n\n\n
                Dengan urutan ini, siswa akan memahami bahwa PLC bukan berdiri sendiri<\/strong>. PLC hanyalah salah satu bagian dari sebuah sistem kontrol. Sebelum sampai PLC, siswa harus memahami sumber listrik, proteksi, alat ukur, switching, dan proteksi motor<\/strong>.<\/p>\n\n\n\n
                Semoga bermanfaat.<\/p>\n","protected":false},"excerpt":{"rendered":"
                MCB dan MCCB sebagai Pengaman Awal Panel Listrik 1. Dari mana aliran listrik dimulai? Secara sederhana, kita dapat menggambarkan aliran […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"default","ast-page-background-enabled":"default","ast-page-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":"","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-4)","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-4)","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-4)","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":[4],"tags":[],"class_list":["post-491","post","type-post","status-publish","format-standard","hentry","category-deskripsi-kategori-logika-dasar-otomasi-selamat-da"],"_links":{"self":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=491"}],"version-history":[{"count":1,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":492,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions\/492"}],"wp:attachment":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}