{"product_id":"mcb-miniature-circuit-breaker-6ka-20a","title":"MCB Miniature Circuit Breaker 6KA 20A","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69e66ac6-9a24-83ea-8954-2d17747d97ea-11\" data-testid=\"conversation-turn-26\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"8304cccc-fe12-4059-ad51-9763b677d5f8\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"347\" data-end=\"358\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"360\" data-end=\"668\"\u003eMCB Miniature Circuit Breaker 20A 6kA is engineered to provide reliable protection for electrical circuits against overloads and short circuits. With a 6kA breaking capacity, it ensures fast and safe disconnection during fault conditions, helping to protect wiring systems and connected electrical equipment.\u003c\/p\u003e\n\u003cp data-start=\"670\" data-end=\"944\"\u003eDesigned for domestic, commercial, and industrial installations, this 20A MCB offers dependable performance in a compact form. It fits seamlessly into distribution boards, making it a practical solution for safe and efficient electrical circuit management in modern systems.\u003c\/p\u003e\n\u003chr data-start=\"946\" data-end=\"949\"\u003e\n\u003ch2 data-section-id=\"no15c\" data-start=\"951\" data-end=\"992\"\u003eWhy Choose a Miniature Circuit Breaker\u003c\/h2\u003e\n\u003cp data-start=\"994\" data-end=\"1221\"\u003eChoosing a 20A 6kA MCB ensures strong protection for medium-to-high load circuits where stability and safety are essential. It quickly responds to electrical faults, reducing the risk of damage and improving system reliability.\u003c\/p\u003e\n\u003cp data-start=\"1223\" data-end=\"1436\"\u003eIts durable construction and efficient tripping mechanism make it a trusted component for electricians and installers. It is ideal for applications requiring consistent protection and long-term operational safety.\u003c\/p\u003e\n\u003chr data-start=\"1438\" data-end=\"1441\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1443\" data-end=\"1458\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1460\" data-end=\"1853\"\u003e\n\u003cli data-section-id=\"1qa5tdu\" data-start=\"1460\" data-end=\"1499\"\u003e20A rated miniature circuit breaker\u003c\/li\u003e\n\u003cli data-section-id=\"83rgml\" data-start=\"1500\" data-end=\"1546\"\u003e6kA breaking capacity for fault protection\u003c\/li\u003e\n\u003cli data-section-id=\"1ekai0e\" data-start=\"1547\" data-end=\"1596\"\u003eProtection against overload and short circuit\u003c\/li\u003e\n\u003cli data-section-id=\"emb9c5\" data-start=\"1597\" data-end=\"1633\"\u003eCompact DIN rail mounting design\u003c\/li\u003e\n\u003cli data-section-id=\"2yqq0z\" data-start=\"1634\" data-end=\"1678\"\u003eSuitable for domestic and industrial use\u003c\/li\u003e\n\u003cli data-section-id=\"pc1mii\" data-start=\"1679\" data-end=\"1720\"\u003eThermal-magnetic fast tripping system\u003c\/li\u003e\n\u003cli data-section-id=\"168mjy2\" data-start=\"1721\" data-end=\"1762\"\u003eDurable and long-lasting construction\u003c\/li\u003e\n\u003cli data-section-id=\"18pe13i\" data-start=\"1763\" data-end=\"1807\"\u003eEasy installation in distribution boards\u003c\/li\u003e\n\u003cli data-section-id=\"12xa4j6\" data-start=\"1808\" data-end=\"1853\"\u003eComplies with electrical safety standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1855\" data-end=\"1858\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1860\" data-end=\"1887\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul data-start=\"1889\" data-end=\"2293\"\u003e\n\u003cli data-section-id=\"k50vmr\" data-start=\"1889\" data-end=\"1938\"\u003eProduct Type: Miniature Circuit Breaker (MCB)\u003c\/li\u003e\n\u003cli data-section-id=\"rx1w7j\" data-start=\"1939\" data-end=\"1956\"\u003eSKU: MCB-120B\u003c\/li\u003e\n\u003cli data-section-id=\"10nos0u\" data-start=\"1957\" data-end=\"1979\"\u003eRated Current: 20A\u003c\/li\u003e\n\u003cli data-section-id=\"yig7j9\" data-start=\"1980\" data-end=\"2006\"\u003eBreaking Capacity: 6kA\u003c\/li\u003e\n\u003cli data-section-id=\"gs06ss\" data-start=\"2007\" data-end=\"2055\"\u003eVoltage Rating: Standard low voltage systems\u003c\/li\u003e\n\u003cli data-section-id=\"1vl9xz2\" data-start=\"2056\" data-end=\"2091\"\u003eMounting Type: DIN rail mounted\u003c\/li\u003e\n\u003cli data-section-id=\"1mmqb6z\" data-start=\"2092\" data-end=\"2139\"\u003eProtection Type: Overload and short circuit\u003c\/li\u003e\n\u003cli data-section-id=\"1sy7q7x\" data-start=\"2140\" data-end=\"2189\"\u003eApplication: Domestic, commercial, industrial\u003c\/li\u003e\n\u003cli data-section-id=\"19u8yyo\" data-start=\"2190\" data-end=\"2239\"\u003ePole Configuration: Single pole (typical use)\u003c\/li\u003e\n\u003cli data-section-id=\"pdntxy\" data-start=\"2240\" data-end=\"2293\"\u003eOperating Mechanism: Thermal-magnetic trip system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2295\" data-end=\"2298\"\u003e\n\u003ch2 data-section-id=\"1xvwnkw\" data-start=\"2300\" data-end=\"2307\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"2309\" data-end=\"2439\"\u003e\u003cstrong data-start=\"2309\" data-end=\"2343\"\u003e1. What is a 20A MCB used for?\u003c\/strong\u003e\u003cbr data-start=\"2343\" data-end=\"2346\"\u003eIt is used to protect medium-high load electrical circuits from overloads and short circuits.\u003c\/p\u003e\n\u003cp data-start=\"2441\" data-end=\"2556\"\u003e\u003cstrong data-start=\"2441\" data-end=\"2485\"\u003e2. What does 6kA breaking capacity mean?\u003c\/strong\u003e\u003cbr data-start=\"2485\" data-end=\"2488\"\u003eIt refers to the maximum fault current the MCB can safely interrupt.\u003c\/p\u003e\n\u003cp data-start=\"2558\" data-end=\"2673\"\u003e\u003cstrong data-start=\"2558\" data-end=\"2595\"\u003e3. Can this MCB be used in homes?\u003c\/strong\u003e\u003cbr data-start=\"2595\" data-end=\"2598\"\u003eYes, it is suitable for domestic, commercial, and industrial installations.\u003c\/p\u003e\n\u003cp data-start=\"2675\" data-end=\"2781\"\u003e\u003cstrong data-start=\"2675\" data-end=\"2710\"\u003e4. Is installation complicated?\u003c\/strong\u003e\u003cbr data-start=\"2710\" data-end=\"2713\"\u003eNo, it is designed for easy DIN rail installation in consumer units.\u003c\/p\u003e\n\u003cp data-start=\"2783\" data-end=\"2891\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2783\" data-end=\"2833\"\u003e5. Does it require replacement after tripping?\u003c\/strong\u003e\u003cbr data-start=\"2833\" data-end=\"2836\"\u003eNo, it can be reset manually once the fault is cleared.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Excel","offers":[{"title":"Default Title","offer_id":57290047979902,"sku":null,"price":1.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0985\/3832\/4350\/files\/MCB3-3_9b10ceac-9df2-42cf-b3e3-d06bf8d0a611.png?v=1776712493","url":"https:\/\/ssmelectric.co.uk\/products\/mcb-miniature-circuit-breaker-6ka-20a","provider":"SSM ELECTRIC","version":"1.0","type":"link"}