{"product_id":"chint-chnt-nxb-63-4p-c20-air-switch-overload-air-switch-dz47-upgraded-small-circuit-breaker","title":"Chint NXB-63-4P-C20 Air Switch Circuit Breaker for Overload Protection","description":"\u003c!-- koeedmro-seo-v1 --\u003e\n\u003c!-- kmdro-seo-v2 (AI-enhanced) --\u003e\n\u003cstyle\u003e.kmdro-seo{margin:24px 0;font-size:15px;line-height:1.6;color:#333}\n.kmdro-seo *{box-sizing:border-box}\n.kmdro-seo-badges{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 6px}\n.kmdro-seo-badge{display:inline-block;padding:5px 12px;border-radius:4px;font-size:13px;font-weight:600}\n.kmdro-seo-badge--stock{background:#e8f5e9;color:#1b5e20}\n.kmdro-seo-badge--warranty{background:#fce477;color:#121212}\n.kmdro-seo-badge--ship{background:#fff3e0;color:#e65100}\n.kmdro-seo h2{font-size:20px;margin:26px 0 10px;padding-bottom:6px;border-bottom:2px solid #e4e4ea;color:#121212}\n.kmdro-seo table{width:100%;border-collapse:collapse;margin:12px 0;background:#fff}\n.kmdro-seo table td{border:1px solid #e0e0e0 !important;padding:10px 14px !important}\n.kmdro-seo table tr:nth-child(even) td{background:#fafafa}\n.kmdro-seo table td:first-child{width:34%;font-weight:600;background:#f3f3f3 !important;color:#444}\n.kmdro-seo-benefits{list-style:none;margin:12px 0;padding:0}\n.kmdro-seo-benefits li{padding:6px 0 6px 28px;position:relative}\n.kmdro-seo-benefits li::before{content:\"\\2713\";position:absolute;left:0;top:6px;width:19px;height:19px;line-height:19px;text-align:center;border-radius:4px;background:#e8f5e9;color:#1b5e20;font-size:12px;font-weight:700}\n.kmdro-seo details{border:1px solid #e0e0e0;border-radius:4px;margin:10px 0;background:#fff;overflow:hidden}\n.kmdro-seo summary{cursor:pointer;padding:12px 16px;font-weight:600;color:#121212;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.kmdro-seo summary::-webkit-details-marker{display:none}\n.kmdro-seo summary::after{content:\"+\";font-size:18px;color:#888;font-weight:400;flex-shrink:0}\n.kmdro-seo details[open] summary::after{content:\"\\2013\"}\n.kmdro-seo details[open] summary{border-bottom:1px solid #eee}\n.kmdro-seo details p{margin:0;padding:12px 16px;color:#555}\n.kmdro-seo-steps{list-style:none;margin:12px 0;padding:0;counter-reset:kmdro-step}\n.kmdro-seo-steps li{counter-increment:kmdro-step;position:relative;padding:8px 0 8px 40px}\n.kmdro-seo-steps li::before{content:counter(kmdro-step);position:absolute;left:0;top:8px;width:26px;height:26px;line-height:26px;text-align:center;border-radius:4px;background:#121212;color:#fff;font-weight:700;font-size:13px}\n.kmdro-seo-note{margin-top:20px;padding:12px 16px;background:#eff0f5;border-left:4px solid #121212;font-size:14px;color:#444}\u003c\/style\u003e\n\u003cdiv class=\"kmdro-seo\"\u003e\n\u003cdiv class=\"kmdro-seo-badges\"\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--stock\"\u003eIn Stock\u003c\/span\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--warranty\"\u003e1-Year Warranty\u003c\/span\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--ship\"\u003eShips Worldwide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2\u003eCHINT NXB-63-4P-C20 Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eNXB-63-4P-C20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eCHINT\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eNXB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAir Switch Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eNXB-63-4P-C20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eOverload Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eNXB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003enew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1-year warranty included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eShips worldwide · Free domestic delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAbout the NXB-63-4P-C20\u003c\/h2\u003e\n\u003cp\u003eWhen a circuit keeps tripping under load or downstream equipment starts overheating, the breaker responsible for overload protection may be the weak point. The CHINT NXB-63-4P-C20 air switch circuit breaker is a new NXB-category unit designed for overload protection in industrial panels. It is a 4-pole air switch circuit breaker, model NXB-63-4P-C20. This replacement is suitable when your existing breaker needs to be swapped out as part of routine maintenance or fault repair.\u003c\/p\u003e\n\u003cp\u003eNXB components are electrical protection devices used in industrial control panels and distribution boards to guard circuits against overloads and short circuits. They isolate faulty lines for maintenance and help ensure safe, reliable operation of machinery, lighting circuits, and auxiliary power supplies.\u003c\/p\u003e\n\u003cp\u003eCHINT is a leading Chinese manufacturer of electrical products, from circuit breakers to automation devices.\u003c\/p\u003e\n\u003cp\u003eEvery order includes a 1-year warranty, and our team can verify compatibility with your existing equipment before you buy — just send us your instruments list.\u003c\/p\u003e\n\u003ch2\u003eWhy Order from koeedmro\u003c\/h2\u003e\n\u003cul class=\"kmdro-seo-benefits\"\u003e\n  \u003cli\u003e1-year warranty on every order\u003c\/li\u003e\n  \u003cli\u003eWorldwide shipping — domestic delivery is free\u003c\/li\u003e\n  \u003cli\u003eCompatibility check before you order — send your instruments list\u003c\/li\u003e\n  \u003cli\u003eBulk and quantity quotes available for multi-part orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails open\u003e\n  \u003csummary\u003eWhat warranty is included with the NXB-63-4P-C20?\u003c\/summary\u003e\n  \u003cp\u003eAll purchases from koeedmro come with a 1-year warranty, including this part. If it does not perform as expected, contact our support team for warranty service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes koeedmro offer bulk or quantity pricing?\u003c\/summary\u003e\n  \u003cp\u003eYes. Send your instruments list with part numbers and quantities, and our team will reply with a quote for the full order — popular with maintenance teams replacing multiple parts at once.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this NXB-63-4P-C20 a new original CHINT breaker?\u003c\/summary\u003e\n  \u003cp\u003eYes, it is listed as new and carries the CHINT brand with model number NXB-63-4P-C20.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I use it for overload protection on a 4-pole circuit?\u003c\/summary\u003e\n  \u003cp\u003eThe CHINT NXB-63-4P-C20 is an air switch circuit breaker with overload protection as its function.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this work in my panel if I send you my parts list?\u003c\/summary\u003e\n  \u003cp\u003eSend your instrument list to moritta@koeed.com before ordering so our team can verify compatibility with your setup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What warranty is included with the NXB-63-4P-C20?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"All purchases from koeedmro come with a 1-year warranty, including this part. If it does not perform as expected, contact our support team for warranty service.\"}},{\"@type\":\"Question\",\"name\":\"Does koeedmro offer bulk or quantity pricing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Send your instruments list with part numbers and quantities, and our team will reply with a quote for the full order — popular with maintenance teams replacing multiple parts at once.\"}},{\"@type\":\"Question\",\"name\":\"Is this NXB-63-4P-C20 a new original CHINT breaker?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it is listed as new and carries the CHINT brand with model number NXB-63-4P-C20.\"}},{\"@type\":\"Question\",\"name\":\"Can I use it for overload protection on a 4-pole circuit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The CHINT NXB-63-4P-C20 is an air switch circuit breaker with overload protection as its function.\"}},{\"@type\":\"Question\",\"name\":\"Will this work in my panel if I send you my parts list?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Send your instrument list to moritta@koeed.com before ordering so our team can verify compatibility with your setup.\"}}]}\u003c\/script\u003e\n\u003ch2\u003eHow to Order the NXB-63-4P-C20\u003c\/h2\u003e\n\u003col class=\"kmdro-seo-steps\"\u003e\n  \u003cli\u003eSend us your instruments list — part numbers and quantities — by email or the contact page.\u003c\/li\u003e\n  \u003cli\u003eOur team confirms stock, compatibility and pricing for your order.\u003c\/li\u003e\n  \u003cli\u003ePlace your order on this page or through your quote; domestic delivery is free.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv class=\"kmdro-seo-note\"\u003eNeed the NXB-63-4P-C20 or other spare parts? Send us your instruments list and our team will confirm stock, compatibility and pricing before you order.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- end koeedmro-seo-v1 --\u003e","brand":"CHINT","offers":[{"title":"Default Title","offer_id":43810573451429,"sku":"JD-100016951949","price":270.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/1322\/9477\/files\/Chint_NXB_63_4P_C20_Air_Switch_Circuit_Breaker_for_Overload_Protection__1.webp?v=1789707137","url":"https:\/\/koeedmro.com\/sr\/products\/chint-chnt-nxb-63-4p-c20-air-switch-overload-air-switch-dz47-upgraded-small-circuit-breaker","provider":"koeedmro","version":"1.0","type":"link"}