{"id":7120,"date":"2024-09-24T16:25:33","date_gmt":"2024-09-24T08:25:33","guid":{"rendered":"https:\/\/viox.com\/?p=7120"},"modified":"2026-03-28T16:50:34","modified_gmt":"2026-03-28T08:50:34","slug":"full-guide-to-molded-case-circuit-breakers-mccbs","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/full-guide-to-molded-case-circuit-breakers-mccbs\/","title":{"rendered":"What Is a Molded Case Circuit Breaker (MCCB)? Complete Guide to Working Principle, Components, Ratings, and Applications"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u1021\u1016\u103c\u1031<\/h2>\n<figure style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/img.viox.com\/Molded-case-circuit-breaker-installed-in-a-low-voltage-industrial-distribution-panel.webp\" alt=\"Molded case circuit breaker installed in a low voltage industrial distribution panel\" \/><figcaption><em>A heavy-duty molded case circuit breaker (MCCB) safely installed within a low-voltage industrial distribution panel, ready to protect distribution equipment.<\/em><\/figcaption><\/figure>\n<p>\u1010\u1032\u1037 <strong>molded case circuit breaker (MCCB)<\/strong> is a low-voltage circuit breaker used to protect feeders, larger branch circuits, machinery supplies, and distribution equipment against overloads and short circuits. Compared with a smaller <a href=\"https:\/\/test.viox.com\/my\/mcb\/\">\u1010\u1000\u1039\u1000\u102d\u102f<\/a>, an MCCB typically offers a higher current range, higher breaking capacity, and more flexible trip-unit options for commercial and industrial power systems.<\/p>\n<p>In practical terms, an MCCB sits in the middle of the low-voltage protection hierarchy:<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/test.viox.com\/my\/mcb\/\">\u1010\u1000\u1039\u1000\u102d\u102f<\/a><\/strong> for smaller final circuits<\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/mccb\/\"><strong>MCCB<\/strong><\/a> for larger feeders and higher-duty branch protection<\/li>\n<li><strong><a href=\"https:\/\/test.viox.com\/my\/acb\/\">ACB<\/a><\/strong> for the highest-current low-voltage switchboard roles<\/li>\n<\/ul>\n<p>If you\u2019re trying to decide whether your system has outgrown a miniature breaker, that is the practical threshold: <strong>an MCCB is the heavier-duty low-voltage breaker used when the circuit needs more capacity and more protection flexibility than a miniature breaker can usually provide.<\/strong><\/p>\n<p>If you only need the acronym explanation, see <a href=\"https:\/\/test.viox.com\/my\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB \u104f \u1021\u1010\u102d\u102f\u1000\u1031\u102c\u1000\u103a\u1021\u1019\u100a\u103a\u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036: Molded Case Circuit Breaker<\/a>.<\/p>\n<h2>\u101e\u1031\u102c\u1037\u1011\u102f\u1010\u103a\u101a\u1030\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/h2>\n<ul>\n<li>An MCCB is a <strong>molded case circuit breaker<\/strong> used for low-voltage feeder and higher-duty circuit protection.<\/li>\n<li>MCCBs are commonly used where current, fault level, or trip-setting requirements exceed the practical range of standard <a href=\"https:\/\/test.viox.com\/my\/mcb\/\">MCBs<\/a>.<\/li>\n<li>The most important things to understand are: what is inside an MCCB, how it trips, and which ratings matter.<\/li>\n<li>The key ratings are not just current and voltage. They also include breaking capacity, trip-unit type, and accessory requirements.<\/li>\n<li>An MCCB guide should explain fundamentals first. Detailed selection, comparison, and trip-unit tuning can then branch into more specialized pages.<\/li>\n<\/ul>\n<h2>MCCB \u1006\u102d\u102f\u1010\u102c \u1018\u102c\u101c\u1032<\/h2>\n<p>An MCCB is an overcurrent protective device enclosed in a molded insulating housing. It is designed for low-voltage systems where the circuit demands more robust protection than a miniature branch breaker can typically offer.<\/p>\n<p>The phrase <code>molded case<\/code> refers to the insulating enclosure that contains the current-carrying contacts, the operating mechanism, the arc-interruption structure, and the trip unit. The breaker is not open-frame like an ACB, and it is not as compact or limited in duty as a small DIN-rail miniature breaker.<\/p>\n<p>In most real installations, MCCBs are used for:<\/p>\n<ul>\n<li>outgoing feeders from distribution boards<\/li>\n<li>larger motor and machinery circuits<\/li>\n<li>sub-main distribution<\/li>\n<li>generator and transfer-related feeder protection<\/li>\n<li>panelboard and switchboard branch protection above typical MCB duties<\/li>\n<\/ul>\n<p>If you want the product-level view rather than the educational overview, see the <a href=\"https:\/\/test.viox.com\/my\/mccb\/\">VIOX MCCB page<\/a>.<\/p>\n<h2>How an MCCB Works<\/h2>\n<figure style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-how-a-molded-case-circuit-breaker-detects-faults-and-interrupts-current.webp\" alt=\"Technical diagram showing how a molded case circuit breaker detects faults and interrupts current\" \/><figcaption><em>Step-by-step technical diagram illustrating the MCCB fault detection and current interruption process under overload and short-circuit conditions.<\/em><\/figcaption><\/figure>\n<p>At a high level, an MCCB performs two jobs:<\/p>\n<ol>\n<li>It carries normal load current continuously within its rating.<\/li>\n<li>It opens the circuit automatically when a fault condition exceeds its trip characteristics.<\/li>\n<\/ol>\n<p>The breaker detects faults through its trip system, which may be:<\/p>\n<ul>\n<li><strong>thermal-magnetic<\/strong><\/li>\n<li><strong>electronic<\/strong><\/li>\n<\/ul>\n<p>In a thermal-magnetic MCCB:<\/p>\n<ul>\n<li>the thermal element responds to sustained overload conditions<\/li>\n<li>the magnetic element responds to higher short-circuit currents<\/li>\n<\/ul>\n<p>In an electronic MCCB:<\/p>\n<ul>\n<li>current is measured more precisely<\/li>\n<li>trip logic can often be adjusted across multiple protection functions<\/li>\n<li>coordination and application flexibility are usually higher<\/li>\n<\/ul>\n<p>In more advanced applications, that usually means the engineer is no longer thinking only in terms of \u201cwill it trip?\u201d but also in terms of <strong>\u1018\u101a\u103a\u101c\u102d\u102f<\/strong> it trips. Electronic trip units are often discussed through protection functions such as <code>\u100c<\/code>, <code>\u104e<\/code>, <code>\u1004\u102b<\/code>, and sometimes <code>\u1006<\/code>:<\/p>\n<ul>\n<li><code>\u100c<\/code> = long-time protection<\/li>\n<li><code>\u104e<\/code> = short-time protection<\/li>\n<li><code>\u1004\u102b<\/code> = instantaneous protection<\/li>\n<li><code>\u1006<\/code> = ground-fault protection where provided<\/li>\n<\/ul>\n<p>Those settings shape the device\u2019s <strong>time-current characteristic (TCC)<\/strong> and are central to coordination studies. In other words, an electronic MCCB is often selected not just for higher current, but because its trip behavior can be tuned to fit the rest of the system.<\/p>\n<p>The interruption sequence itself is mechanical and electrical. When the trip unit commands the breaker to open, the contacts separate, an arc forms, and the arc is forced into the arc-control structure until the fault current is interrupted safely.<\/p>\n<p>For the detailed technology comparison, see <a href=\"https:\/\/test.viox.com\/my\/electronic-vs-thermal-magnetic-mccb\/\">Electronic vs Thermal-Magnetic MCCB<\/a>.<\/p>\n<h2>What Is Inside an MCCB?<\/h2>\n<figure style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-infographic-showing-the-main-internal-parts-of-a-molded-case-circuit-breaker.webp\" alt=\"Technical infographic showing the main internal parts of a molded case circuit breaker\" \/><figcaption><em>Detailed technical breakdown of an MCCB\u2019s internal components, showcasing the trip unit, arc chamber, and rugged molded case.<\/em><\/figcaption><\/figure>\n<p>This is one of the most useful ways to answer the <code>inside mccb<\/code> query, because many readers are really asking how the device is built and why it costs more than a miniature breaker.<\/p>\n<p>The typical internal sections of an MCCB include:<\/p>\n<h3>1. Molded Insulating Case<\/h3>\n<p>The enclosure provides mechanical protection, insulation, dimensional stability, and support for the internal parts. It must tolerate heat, fault stress, and long service life in switchboards and panels.<\/p>\n<h3>2. Fixed and Moving Contacts<\/h3>\n<p>\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u1015\u103c\u102e\u1038 breaker \u1001\u101c\u102f\u1010\u103a\u1010\u102d\u102f\u1000\u103a\u101e\u1031\u102c\u1021\u1001\u102b\u1010\u103d\u1004\u103a \u1000\u103d\u1032\u101e\u103d\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b Contact \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1019\u103e\u102f\u104a \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f \u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<h3>3. \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f \u101a\u1014\u1039\u1010\u101b\u102c\u1038<\/h3>\n<p>\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f \u101a\u1014\u1039\u1010\u101b\u102c\u1038\u101e\u100a\u103a contacts \u1019\u103b\u102c\u1038\u1000\u102d\u102f\u1016\u103d\u1004\u1037\u103a\u101b\u1014\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1015\u102d\u1010\u103a\u101b\u1014\u103a \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u1000\u102d\u102f \u101e\u102d\u102f\u101c\u103e\u1031\u102c\u1004\u103a\u1015\u103c\u102e\u1038 \u1011\u102f\u1010\u103a\u101c\u103d\u103e\u1010\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1030\u1019\u103e \u101c\u1000\u103a\u1000\u102d\u102f\u1004\u103a\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1021\u1015\u103c\u1014\u103a\u1021\u101c\u103e\u1014\u103a\u1021\u1000\u103b\u102d\u102f\u1038\u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u101e\u100a\u1037\u103a \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a contacts \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u103c\u1010\u103a\u101e\u102c\u1038\u1005\u103d\u102c\u1015\u103d\u1004\u1037\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u1001\u103b\u102c\u1005\u1031\u101e\u100a\u1037\u103a \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1005\u1014\u1005\u103a\u101c\u100a\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>4. \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a<\/h3>\n<p>\u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a\u101e\u100a\u103a MCCB \u104f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038\u1026\u1038\u1014\u103e\u1031\u102c\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b breaker \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>thermal-magnetic<\/li>\n<li>\u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c \u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a<\/li>\n<\/ul>\n<p>\u1015\u102d\u102f\u1019\u102d\u102f\u1021\u1006\u1004\u1037\u103a\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a\u101e\u100a\u103a \u1021\u1001\u103b\u102d\u1014\u103a\u1000\u103c\u102c\u1019\u103c\u1004\u1037\u103a\u1005\u103d\u102c\u104a \u1021\u1001\u103b\u102d\u1014\u103a\u1010\u102d\u102f\u1021\u1010\u103d\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101e\u1031\u102c \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u1036\u1037\u1015\u102d\u102f\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 \u1010\u1005\u103a\u1001\u102b\u1010\u1005\u103a\u101b\u1036 \u1011\u102f\u1010\u103a\u1000\u102f\u1014\u103a\u1019\u102d\u101e\u102c\u1038\u1005\u102f\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d \u1014\u1031\u102c\u1000\u103a\u1011\u1015\u103a\u101a\u102f\u1010\u1039\u1010\u102d\u1017\u1031\u1012\u1000\u102d\u102f \u1015\u1036\u1037\u1015\u102d\u102f\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>5. Arc Chute \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a Arc-Interruption Structure<\/h3>\n<p>breaker \u101e\u100a\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1015\u103d\u1004\u1037\u103a\u101e\u103d\u102c\u1038\u101e\u1031\u102c\u1021\u1001\u102b \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1000\u103c\u1031\u102c\u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u100a\u103a\u104b arc chute \u101e\u100a\u103a \u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1000\u103c\u1031\u102c\u1000\u102d\u102f \u1006\u1014\u1037\u103a\u1011\u102f\u1010\u103a\u104a \u1021\u1031\u1038\u1005\u1031\u1015\u103c\u102e\u1038 \u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u102c\u1038\u1015\u1031\u1038\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a breaker \u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1005\u103d\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>6. Line \u1014\u103e\u1004\u1037\u103a Load Terminals<\/h3>\n<p>\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a MCCB \u1000\u102d\u102f \u1005\u1014\u1005\u103a\u1011\u1032\u101e\u102d\u102f\u1037 \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1010\u103d\u1004\u103a terminal \u1021\u101b\u100a\u103a\u1021\u101e\u103d\u1031\u1038\u104a torque \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f\u104a conductor fit \u1014\u103e\u1004\u1037\u103a busbar interface \u1010\u102d\u102f\u1037\u101e\u100a\u103a \u101b\u1031\u101b\u103e\u100a\u103a\u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h3>7. \u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/h3>\n<p>MCCB \u1021\u1019\u103b\u102c\u1038\u1021\u1015\u103c\u102c\u1038\u101e\u100a\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101e\u1031\u102c \u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u1036\u1037\u1015\u102d\u102f\u1038\u1015\u1031\u1038\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1021\u101b\u1014\u103a\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>shunt \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u101c\u103d\u103e\u1010\u103a\u1015\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1031\u102c\u103a\u1015\u101b\u1031\u1010\u102c\u1019\u103b\u102c\u1038<\/li>\n<li>\u1014\u103e\u102d\u102f\u1038\u1005\u1000\u103a contacts \u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a breaker \u1000\u102d\u102f \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101e\u1031\u102c \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103e \u1000\u103b\u101a\u103a\u1015\u103c\u1014\u1037\u103a\u101e\u1031\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u101b\u1031\u1038\u1005\u1014\u1005\u103a\u104f \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u1021\u1016\u103c\u1005\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u1004\u103a\u104f application \u1021\u1010\u103d\u1000\u103a \u1021\u1013\u102d\u1000\u1000\u103b\u1015\u102b\u1000 auxiliary contacts \u1014\u103e\u1004\u1037\u103a shunt-trip functions \u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101e\u1031\u102c \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1011\u1030\u1038\u1015\u103c\u102f\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u101b\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1005\u102e\u101c\u1031\u1037\u101c\u102c\u101e\u1004\u1037\u103a\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h2>\u101e\u1004\u103a\u1014\u102c\u1038\u101c\u100a\u103a\u101e\u1004\u1037\u103a\u101e\u1031\u102c \u1021\u1013\u102d\u1000 MCCB \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/h2>\n<figure style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-infographic-showing-key-MCCB-ratings-including-Icu-Ics-and-LSIG-trip-functions.webp\" alt=\"Technical infographic showing key MCCB ratings including Icu Ics and LSIG trip functions\" \/><figcaption><em>Icu, Ics breaking \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1019\u103b\u1009\u103a\u1038\u1000\u103d\u1031\u1038 \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a\u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c MCCB \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u104f \u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101e\u1031\u102c \u1001\u103c\u102f\u1036\u1004\u102f\u1036\u101e\u102f\u1036\u1038\u101e\u1015\u103a\u1001\u103b\u1000\u103a\u104b.<\/em><\/figcaption><\/figure>\n<p>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101e\u1031\u102c breaker \u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1019\u103e MCCB-\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u101b\u102c\u1019\u103b\u102c\u1038\u101e\u102d\u102f\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u103d\u103e\u1031\u1037\u101b\u101e\u100a\u1037\u103a \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u1019\u103e\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u102d\u102f\u104d\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101c\u102c\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1014\u103e\u102f\u1014\u103a\u1038\u101c\u1000\u103a\u101b\u103e\u102d<\/h3>\n<p>\u104e\u1004\u103a\u1038\u101e\u100a\u103a breaker \u101e\u100a\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u101b\u1014\u103a\u101b\u100a\u103a\u101b\u103d\u101a\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u1030\u1019\u103b\u102c\u1038\u1000\u103c\u100a\u1037\u103a\u101b\u103e\u102f\u101e\u100a\u1037\u103a \u1015\u1011\u1019\u1006\u102f\u1036\u1038\u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1011\u1032\u1019\u103e \u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u1037\u103a\u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u101e\u1031\u102c \u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b.<\/p>\n<h3>Frame Size<\/h3>\n<p>frame \u101e\u100a\u103a \u101b\u102f\u1015\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c breaker platform \u1014\u103e\u1004\u1037\u103a current envelope \u1000\u102d\u102f \u1010\u100a\u103a\u1011\u1031\u102c\u1004\u103a\u101e\u100a\u103a\u104b \u1019\u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c frame \u1019\u102d\u101e\u102c\u1038\u1005\u102f\u1021\u1010\u103d\u1004\u103a\u1038\u1010\u103d\u1004\u103a \u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1017\u102d\u102f\u1037\u1015\u1038\u1001\u103a\u1000\u1039<\/h3>\n<p>breaker \u101e\u100a\u103a \u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c AC \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a DC \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1019\u103e\u102f\u1021\u1015\u102b\u1021\u101d\u1004\u103a application \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101b\u1019\u100a\u103a\u104b.<\/p>\n<h3>Pole Count<\/h3>\n<p>\u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c pole configurations \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ul>\n<li>2-\u101d\u1004\u103a\u101b\u102d\u102f\u1038<\/li>\n<li>3-pole<\/li>\n<li>4-pole<\/li>\n<\/ul>\n<p>Pole count \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1005\u1014\u1005\u103a\u1017\u102d\u101e\u102f\u1000\u102c\u104a conductor switching \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a neutral treatment \u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a\u1019\u1030\u1010\u100a\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1031\u1006\u1038\u1031\u107e<\/h3>\n<p>\u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1006\u102f\u1036\u1038 MCCB parameters \u1019\u103b\u102c\u1038\u1011\u1032\u1019\u103e \u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b breaker \u101e\u100a\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u101b\u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u1001\u103b\u1031\u101b\u103e\u102d\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101b\u1019\u100a\u103a\u104b.<\/p>\n<p>\u1021\u1013\u102d\u1000 \u101d\u1031\u102b\u101f\u102c\u101b\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037 \u1015\u102b\u101d\u1004\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li><code>Icu<\/code><\/li>\n<li><code>Ics<\/code><\/li>\n<\/ul>\n<p>\u1024\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a breaker \u101e\u100a\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u104f \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1021\u1006\u1004\u1037\u103a\u1014\u103e\u1004\u1037\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u1001\u103b\u1000\u103a\u1021\u1010\u103d\u1000\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u1019\u101b\u103e\u102d\u1000\u102d\u102f \u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1015\u102d\u102f\u1019\u102d\u102f\u1021\u102c\u101b\u102f\u1036\u1005\u102d\u102f\u1000\u103a\u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a\u104a \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/how-to-read-mccb-nameplates-for-electrical-safety\/\">\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101b\u1031\u1038\u1021\u1010\u103d\u1000\u103a MCCB \u1021\u1019\u100a\u103a\u1015\u103c\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1016\u1010\u103a\u101b\u1019\u100a\u103a\u1014\u100a\u103a\u1038<\/a>.<\/p>\n<h3>Trip Unit \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/h3>\n<p>\u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a \u1017\u102d\u101e\u102f\u1000\u102c\u101e\u100a\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1015\u103c\u1004\u103a\u1038\u1011\u1014\u103a\u1005\u103d\u102c \u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f<\/li>\n<li>\u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038<\/li>\n<li>\u1015\u103c\u1014\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f<\/li>\n<li>\u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f<\/li>\n<\/ul>\n<p>\u1011\u102d\u102f\u1037\u1000\u103c\u1031\u102c\u1004\u1037\u103a MCCB \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u101e\u100a\u103a \u1021\u1001\u103c\u1031\u1001\u1036\u1021\u1006\u1004\u1037\u103a\u1010\u103d\u1004\u103a\u1015\u1004\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u101e\u1004\u1037\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h2>\u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c MCCB \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038<\/h2>\n<p>MCCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u101b\u1014\u103a \u1021\u101e\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c \u1014\u100a\u103a\u1038\u101c\u1019\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u101b\u103e\u102d\u1015\u102b\u101e\u100a\u103a\u104b \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u103b\u101e\u1031\u102c \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u1005\u103d\u102c\u1011\u102c\u1038\u101e\u1004\u1037\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1016\u103c\u1004\u1037\u103a<\/h3>\n<ul>\n<li>thermal-magnetic MCCB<\/li>\n<li>\u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a MCCB<\/li>\n<\/ul>\n<p>\u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a \u1015\u101b\u1031\u102c\u1002\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1013\u102d\u1015\u1039\u1015\u102c\u101a\u103a\u1021\u101b\u103e\u102d\u1006\u102f\u1036\u1038 \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104a \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1006\u102d\u102f\u101e\u1031\u102c\u103a \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u104a \u1010\u102d\u1000\u103b\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1005\u1014\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u101e\u100a\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u104a \u1010\u1004\u103a\u1038\u1000\u103b\u1015\u103a\u101e\u1031\u102c \u1006\u1000\u103a\u1010\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1021\u1006\u1004\u1037\u103a\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038\u101a\u102f\u1010\u1039\u1010\u102d\u1017\u1031\u1012 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1010\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a \u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101e\u1031\u102c fixed-trip breaker \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1011\u1000\u103a \u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u104f TCC \u1021\u1015\u103c\u102f\u1021\u1019\u1030\u1006\u102e\u101e\u102d\u102f\u1037 \u101b\u103d\u1031\u1037\u101c\u103b\u102c\u1038\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<h3>Application Duty \u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a<\/h3>\n<p>MCCB \u1021\u1001\u103b\u102d\u102f\u1037\u1000\u102d\u102f \u1016\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1031\u102c\u1004\u1037\u103a\u1010\u1014\u103a\u1038\u1010\u1014\u103a\u1038 feeder \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1021\u1001\u103b\u102d\u102f\u1037\u1000\u102d\u102f application \u1000 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1011\u102c\u1038\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a<\/li>\n<li>\u1015\u102d\u102f\u1019\u102d\u102f\u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1021\u1015\u103c\u102f\u1021\u1019\u1030<\/li>\n<li>\u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1015\u1036\u1037\u1015\u102d\u102f\u1038\u1019\u103e\u102f<\/li>\n<li>\u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u100a\u103a\u1038\u1019\u103e\u102f<\/li>\n<\/ul>\n<h3>Mounting \u1014\u103e\u1004\u1037\u103a System Integration \u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a<\/h3>\n<p>\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1014\u103e\u1004\u1037\u103a \u1005\u1014\u1005\u103a\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d MCCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f panelboards\u104a switchboards\u104a \u1005\u1000\u103a\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101e\u102e\u1038\u101e\u1014\u1037\u103a\u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a\u1021\u1001\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1005\u102c\u1016\u1010\u103a\u101e\u1030\u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103e\u102c \u201cMCCB \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038 \u1018\u101a\u103a\u101c\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u101c\u1032\u201d \u1019\u101f\u102f\u1010\u103a\u1018\u1032-<\/p>\n<p><strong>\u1018\u101a\u103a\u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1014\u100a\u103a\u1038\u1015\u100a\u102c\u104a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1010\u1014\u103a\u1038\u1021\u1005\u102c\u1038\u1014\u1032\u1037 \u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1021\u1005\u102f\u1036\u1000 \u1000\u103b\u103d\u1014\u103a\u1010\u1031\u102c\u1037\u103a application \u1014\u1032\u1037 \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101c\u1032\u104b<\/strong><\/p>\n<h2>Where Are MCCBs Used?<\/h2>\n<p>MCCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f low-voltage \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1000\u103b\u101a\u103a\u1000\u103b\u101a\u103a\u1015\u103c\u1014\u1037\u103a\u1015\u103c\u1014\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1000\u103c\u101e\u100a\u103a\u104b \u1015\u102f\u1036\u1019\u103e\u1014\u103a application \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ul>\n<li>low-voltage \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1018\u102f\u1010\u103a\u1019\u103e \u1021\u1013\u102d\u1000\u1011\u103d\u1000\u103a\u101e\u103d\u102c\u1038\u101e\u1031\u102c feeders \u1019\u103b\u102c\u1038<\/li>\n<li>sub-distribution \u1014\u103e\u1004\u1037\u103a panel feeders \u1019\u103b\u102c\u1038<\/li>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u101b\u1031\u1038 \u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>HVAC \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038<\/li>\n<li>generator feeder \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f<\/li>\n<li>transfer-related power \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<li>MCB \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a \u1019\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u100a\u1037\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c branch circuits \u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u1024\u101e\u100a\u103a\u1019\u103e\u102c \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b <code>mccbs<\/code> query \u101e\u100a\u103a \u1015\u1031\u102b\u1037\u1015\u1031\u102b\u1037\u1015\u102b\u1038\u1015\u102b\u1038 \u1014\u1031\u1011\u102d\u102f\u1004\u103a\u101e\u1030\u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1019\u103b\u102c\u1038\u104a panel \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u101e\u1030\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101d\u101a\u103a\u101a\u1030\u101b\u1031\u1038\u1021\u1016\u103d\u1032\u1037\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1006\u103d\u1032\u1006\u1031\u102c\u1004\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b MCCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1005\u1014\u1005\u103a\u1010\u102c\u101d\u1014\u103a\u1015\u102d\u102f\u1019\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1015\u103c\u102e\u1038 \u100a\u1036\u1037\u1016\u103b\u1004\u103a\u1038\u101e\u1031\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u104f\u1021\u1000\u103b\u102d\u102f\u1038\u1006\u1000\u103a\u1019\u103b\u102c\u1038\u1019\u103e\u102c \u1015\u102d\u102f\u1019\u102d\u102f\u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u1015\u1031\u102b\u103a\u101c\u102c\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<h2>MCCB \u1014\u103e\u1004\u1037\u103a MCB- \u1021\u1010\u102d\u102f\u1001\u103b\u102f\u1036\u1038 \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u103b\u101e\u1031\u102c \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a<\/h2>\n<p>\u1024\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u101e\u100a\u103a \u1021\u1001\u103c\u1031\u1001\u1036\u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u101b\u103e\u1004\u103a\u1038\u1015\u103c\u101e\u1004\u1037\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101e\u100a\u1037\u103a\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1000\u102d\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1014\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u1021\u1004\u103a\u1039\u1002\u102b<\/th>\n<th style=\"padding: 8px;\">MCCB<\/th>\n<th style=\"padding: 8px;\">\u1010\u1000\u1039\u1000\u102d\u102f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">Typical role<\/td>\n<td style=\"padding: 8px;\">\u1016\u102d\u1012\u102b\u1014\u103e\u1004\u1037\u103a\u101d\u1014\u103a\u1015\u102d\u102f\u101e\u1031\u102c \u1018\u101b\u1014\u1037\u103a\u1001\u103a\u103b\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f<\/td>\n<td style=\"padding: 8px;\">\u101e\u1031\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1014\u1031\u102c\u1000\u103a\u1006\u102f\u1036\u1038\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038<\/td>\n<td style=\"padding: 8px;\">\u1015\u102d\u102f\u1019\u102d\u102f\u1000\u103b\u101a\u103a\u1015\u103c\u1014\u1037\u103a\u1015\u103c\u102e\u1038 \u1015\u102d\u102f\u1019\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u100a\u103a<\/td>\n<td style=\"padding: 8px;\">\u1014\u102d\u1019\u1037\u103a\u1015\u103c\u102e\u1038 \u1015\u102d\u102f\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u1001\u103b\u102d\u102f\u1038\u1016\u103b\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038<\/td>\n<td style=\"padding: 8px;\">\u101a\u1031\u1018\u102f\u101a\u103b\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u100a\u103a\u104b<\/td>\n<td style=\"padding: 8px;\">\u101a\u1031\u1018\u102f\u101a\u103b\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1014\u102d\u1019\u1037\u103a\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u1011\u101b\u1005\u103a\u1015\u103a \u1006\u1000\u103a\u1010\u1004\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u103d\u101a\u103a\u1015\u103c\u1004\u103a\u101c\u103d\u101a\u103a\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038<\/td>\n<td style=\"padding: 8px;\">Often broader<\/td>\n<td style=\"padding: 8px;\">\u1019\u103b\u102c\u1038\u101e\u1031\u102c\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f<\/td>\n<td style=\"padding: 8px;\">\u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038<\/td>\n<td style=\"padding: 8px;\">\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1014\u103e\u1004\u1037\u103a \u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c \u1018\u101b\u1014\u1037\u103a\u1001\u103a\u103b\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u1019\u103e\u102c \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u1015\u102b\u101e\u100a\u103a\u104b<\/p>\n<ul>\n<li>\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u102b <a href=\"https:\/\/test.viox.com\/my\/mcb\/\">\u1010\u1000\u1039\u1000\u102d\u102f<\/a> for smaller final circuits<\/li>\n<li>\u101d\u1014\u103a\u1015\u1019\u102c\u100f\u104a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1015\u1019\u102c\u100f \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u103d\u101a\u103a\u1015\u103c\u1004\u103a\u101c\u103d\u101a\u103a\u101e\u100a\u103a \u1011\u102d\u102f\u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1015\u102b\u1000 MCCB \u1000\u102d\u102f \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u102b<\/li>\n<\/ul>\n<p>\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a\u104a \u1000\u103c\u100a\u1037\u103a\u1015\u102b <a href=\"https:\/\/test.viox.com\/my\/mccb-vs-mcb\/\">MCCB \u1014\u103e\u1004\u1037\u103a MCB<\/a>.<\/p>\n<h2>MCCB \u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u101b\u1019\u100a\u103a\u1014\u100a\u103a\u1038- \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u1004\u1037\u103a\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u101a\u102f\u1010\u1039\u1010\u102d<\/h2>\n<p>\u1024\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u101e\u100a\u103a \u1005\u102c\u1016\u1010\u103a\u101e\u1030\u1019\u103b\u102c\u1038\u1021\u102c\u1038 \u1019\u1030\u1018\u1031\u102c\u1004\u103a\u1000\u102d\u102f\u1015\u1031\u1038\u101e\u1004\u1037\u103a\u1015\u103c\u102e\u1038 \u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1021\u1011\u1030\u1038\u1015\u103c\u102f\u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u101e\u102d\u102f\u1037 \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u101e\u1004\u1037\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1021\u1006\u1004\u1037\u103a\u1019\u103c\u1004\u1037\u103a\u1010\u103d\u1004\u103a\u104a MCCB \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1024\u1021\u101b\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1010\u1004\u103a\u101e\u100a\u103a-<\/p>\n<ol>\n<li>load current<\/li>\n<li>\u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038<\/li>\n<li>pole count<\/li>\n<li>\u101b\u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101b\u103e\u1031\u102c\u1037\u1006\u102c\u1038\u1000\u1005\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038<\/li>\n<li>\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038<\/li>\n<li>\u1011\u101b\u1005\u103a\u1015\u103a\u101a\u1030\u1014\u1005\u103a \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/li>\n<li>\u1006\u1000\u103a\u1005\u1015\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>upstream \u1014\u103e\u1004\u1037\u103a downstream \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u103d\u1000\u103a\u1019\u103e\u102f<\/li>\n<\/ol>\n<p>\u1021\u1032\u1012\u102b\u1000 \u1021\u1001\u103c\u1031\u1001\u1036\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1021\u1010\u103d\u1000\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u101a\u103a\u104b.<br \/>\n\u1005\u102c\u1016\u1010\u103a\u101e\u1030\u101e\u100a\u103a \u1010\u1000\u101a\u1037\u103a panel \u1010\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1014\u1031\u1015\u103c\u102e\u1006\u102d\u102f\u101c\u103b\u103e\u1004\u103a\u104a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u1011\u1032\u101e\u102d\u102f\u1037 \u1015\u102d\u102f\u1019\u102d\u102f\u1014\u1000\u103a\u101b\u103e\u102d\u102f\u1004\u103a\u1038\u1005\u103d\u102c \u101e\u103d\u102c\u1038\u101e\u1004\u1037\u103a\u101e\u100a\u103a- <a href=\"https:\/\/test.viox.com\/my\/how-to-select-an-mccb-for-a-panel\/\">How to Select an MCCB for a Panel<\/a>.<\/p>\n<h2>\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u104a \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1001\u103c\u1031\u1001\u1036\u1019\u103b\u102c\u1038<\/h2>\n<p>MCCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u102c\u101b\u103e\u100a\u103a\u1001\u1036\u1015\u103c\u102e\u1038 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038\u1021\u1016\u103c\u1005\u103a \u1019\u1000\u103c\u102c\u1001\u100f \u101e\u1018\u1031\u102c\u1011\u102c\u1038\u1000\u103c\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u104e\u1004\u103a\u1038\u1000\u102d\u102f \u201c\u1011\u102c\u101d\u101b\u101c\u103b\u1005\u103a\u101c\u103b\u1030\u101b\u103e\u102f\u201d\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u101b\u1031\u102c\u1011\u103d\u1031\u1038\u101e\u1004\u1037\u103a\u1015\u102b\u104b\u201d<\/p>\n<p>\u1021\u1001\u103c\u1031\u1001\u1036\u1021\u1006\u1004\u1037\u103a\u1010\u103d\u1004\u103a\u104a \u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c\u1021\u101c\u1031\u1037\u1021\u1000\u103b\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ul>\n<li>\u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1012\u1010\u103a\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u1010\u102c\u1019\u102e\u1014\u101a\u103a\u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1019\u103e\u102f<\/li>\n<li>\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1010\u1004\u103a\u1038\u1021\u102c\u1038\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f<\/li>\n<li>\u101d\u1014\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u104f \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038<\/li>\n<li>\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1001\u103c\u1004\u103a\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1019\u103c\u1004\u103a\u1021\u102c\u101b\u102f\u1036\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038<\/li>\n<li>\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1021\u1001\u103b\u102d\u1014\u103a\u1000\u102c\u101c\u1021\u101c\u102d\u102f\u1000\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1005\u1005\u103a\u1006\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a \u1011\u101b\u1005\u103a\u1015\u103a\u101a\u1030\u1014\u1005\u103a\u1015\u102b\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101e\u1031\u102c \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u103d\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1005\u102e\u1021\u1005\u1009\u103a\u101e\u100a\u103a \u1024\u1021\u101b\u102c\u1019\u103b\u102c\u1038\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a \u1019\u1030\u1010\u100a\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101d\u1014\u103a<\/li>\n<li>\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1019\u103e\u1010\u103a\u1010\u1019\u103a\u1038<\/li>\n<li>\u1005\u1014\u1005\u103a\u104f \u1021\u101b\u1031\u1038\u1015\u102b\u1019\u103e\u102f<\/li>\n<li>\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u104f \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u1019\u103e\u102f<\/li>\n<\/ul>\n<p>\u1024\u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u101e\u100a\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1000\u103a\u101e\u1031\u1015\u103c\u101b\u1014\u103a\u101e\u102c \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1016\u103c\u1005\u103a\u101b\u1014\u103a \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u104b.<\/p>\n<h2>MCCB \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u1015\u1010\u103a\u101e\u1000\u103a\u104d \u101c\u1030\u1019\u103b\u102c\u1038\u104f \u1021\u1019\u103e\u102c\u1038\u1019\u103b\u102c\u1038<\/h2>\n<h3>1. \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f\u101e\u102c \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1021\u1001\u103b\u1000\u103a\u1021\u1016\u103c\u1005\u103a \u101e\u1018\u1031\u102c\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u104a \u1011\u101b\u1005\u103a\u1015\u103a\u101a\u1030\u1014\u1005\u103a \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f \u1019\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1015\u102b\u1000 MCCB \u101e\u100a\u103a \u1019\u103e\u102c\u1038\u1014\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>2. MCB \u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a MCCB \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1021\u101c\u103d\u1014\u103a\u1021\u1000\u103b\u103d\u1036\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1010\u1000\u101a\u1037\u103a\u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1000\u102d\u102f \u1019\u1011\u100a\u1037\u103a\u1018\u1032 \u1018\u1010\u103a\u1002\u103b\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u1014\u1031\u101b\u102c\u1000\u102d\u102f \u1016\u103c\u102f\u1014\u103a\u1038\u1010\u102e\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>3. MCCB \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a MCB \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1024\u101e\u100a\u103a\u1019\u103e\u102c \u1006\u1014\u1037\u103a\u1000\u103b\u1004\u103a\u1018\u1000\u103a\u1021\u1019\u103e\u102c\u1038\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u1019\u1000\u103c\u102c\u1001\u100f\u1006\u102d\u102f\u101e\u101c\u102d\u102f \u1015\u102d\u102f\u104d\u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a\u104b \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u101d\u1014\u103a\u104a \u1015\u102d\u102f\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1016\u102d\u1012\u102b\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1015\u101b\u102d\u102f\u1002\u101b\u1019\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a MCCB \u1021\u1006\u1004\u1037\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<h3>4. \u1011\u101b\u1005\u103a\u1015\u103a\u101a\u1030\u1014\u1005\u103a\u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1000\u102d\u102f \u101c\u103b\u1005\u103a\u101c\u103b\u1030\u101b\u103e\u102f\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1011\u101b\u1005\u103a\u1015\u103a\u101a\u1030\u1014\u1005\u103a\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f\u101e\u102c\u1019\u1000 \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1000\u102d\u102f\u101c\u100a\u103a\u1038 \u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<h3>5. \u1014\u102d\u1019\u102d\u1010\u103a\u1015\u103c\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u101e\u102f\u1036\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u103b\u1031\u102c\u103a\u101e\u103d\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1010\u1036\u1006\u102d\u1015\u103a\u1000\u102d\u102f \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d\u1014\u102c\u1038\u1019\u101c\u100a\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1021\u1019\u103e\u102c\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1015\u102b\u101e\u100a\u103a\u104b \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u104a \u1016\u101b\u102d\u1019\u103a\u1014\u103e\u1004\u1037\u103a \u1011\u101b\u1005\u103a\u1015\u103a\u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a\u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u102c\u1038\u101c\u102f\u1036\u1038 \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h2>\u1019\u1000\u103c\u102c\u1001\u100f\u1019\u1031\u1038\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/h2>\n<h3>What is a molded case circuit breaker?<\/h3>\n<p>A molded case circuit breaker is a low-voltage overcurrent protective device enclosed in a molded insulating housing. It is used for feeder and higher-duty branch protection where current level, fault duty, or trip flexibility exceed the practical range of a miniature breaker.<\/p>\n<h3>MCCB \u1014\u103e\u1004\u1037\u103a MCB \u1021\u1000\u103c\u102c\u1038 \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1000\u102c\u1038 \u1021\u1018\u101a\u103a\u1014\u100a\u103a\u1038\u104b<\/h3>\n<p>An MCCB is generally used for larger circuits, higher fault levels, and more demanding protection duties, while an MCB is usually used for smaller final circuits with simpler protection requirements.<\/p>\n<h3>What is inside an MCCB?<\/h3>\n<p>A typical MCCB contains a molded insulating case, fixed and moving contacts, an operating mechanism, a trip unit, arc-control components, terminals, and often optional accessories such as auxiliary contacts or shunt trips.<\/p>\n<h3>Where are MCCBs used?<\/h3>\n<p>MCCBs are commonly used in low-voltage commercial and industrial distribution systems, including feeders, machinery circuits, sub-distribution boards, and larger branch circuits.<\/p>\n<h3>What do Icu and Ics mean on an MCCB?<\/h3>\n<p>They are breaking-capacity-related ratings that help determine whether the breaker is suitable for the available short-circuit current and expected service duty in the system.<\/p>\n<h3>Is every MCCB electronic?<\/h3>\n<p>No. MCCBs may use thermal-magnetic or electronic trip technology, depending on the application and product family.<\/p>\n<h3>How do I choose the right MCCB?<\/h3>\n<p>You choose the right MCCB by matching the current, voltage, pole count, available fault level, breaking capacity, trip-unit type, and coordination requirements of the installation.<\/p>\n<h2>\u1014\u102d\u1002\u102f\u1036\u1038<\/h2>\n<p>\u101e\u1004\u103a\u101e\u100a\u103a \u1021\u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u1006\u102f\u1036\u1038\u1021\u1016\u103c\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1015\u102b\u1000 <code>molded case circuit breaker \u1006\u102d\u102f\u1010\u102c\u1018\u102c\u101c\u1032<\/code>, \u104a \u1012\u102b\u1000 \u1012\u102b\u1015\u102b\u1015\u1032-<\/p>\n<p><strong>MCCB \u101e\u100a\u103a \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u104a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1021\u1006\u1004\u1037\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1011\u101b\u1005\u103a\u1015\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u103d\u101a\u103a\u1015\u103c\u1004\u103a\u101c\u103d\u101a\u103a\u101e\u100a\u103a \u101e\u1031\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u104f \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u101c\u102f\u1015\u103a\u101c\u102f\u1015\u103a\u101e\u100a\u1037\u103a\u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u1037\u103a \u1016\u102d\u1012\u102b\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101d\u1014\u103a\u1015\u102d\u102f\u101e\u1031\u102c \u1018\u101b\u1014\u1037\u103a\u1001\u103a\u103b\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/strong><\/p>\n<p>\u1011\u102d\u102f\u1037\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1024\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1010\u100a\u103a\u101b\u103e\u102d\u101e\u1004\u1037\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1021\u1013\u102d\u1000 <a href=\"https:\/\/test.viox.com\/my\/mccb\/\">MCCB \u1011\u102f\u1010\u103a\u1000\u102f\u1014\u103a\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c<\/a><\/li>\n<li>\u1021\u1013\u102d\u1000 <a href=\"https:\/\/test.viox.com\/my\/mccb-vs-mcb\/\">MCCB \u1014\u103e\u1004\u1037\u103a MCB \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c<\/a><\/li>\n<li>\u1021\u1013\u102d\u1000 <a href=\"https:\/\/test.viox.com\/my\/how-to-select-an-mccb-for-a-panel\/\">MCCB selection guide<\/a><\/li>\n<li>\u1021\u1013\u102d\u1000 <a href=\"https:\/\/test.viox.com\/my\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036\u1015\u102f\u1036\u1005\u1036\u1005\u102c\u1019\u103b\u1000\u103a\u1014\u103e\u102c<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5915.77px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5915.77px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 79.8281px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 79.8281px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 79.8281px; left: 54.0078px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Direct Answer A heavy-duty molded case circuit breaker (MCCB) safely installed within a low-voltage industrial distribution panel, ready to protect distribution equipment. A molded case circuit breaker (MCCB) is a low-voltage circuit breaker used to protect feeders, larger branch circuits, machinery supplies, and distribution equipment against overloads and short circuits. Compared with a smaller MCB, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7121,"comment_status":"closed","ping_status":"open","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-7120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/7120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/comments?post=7120"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/7120\/revisions"}],"predecessor-version":[{"id":23291,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/7120\/revisions\/23291"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media\/7121"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media?parent=7120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/categories?post=7120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/tags?post=7120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}