{"product_id":"siemens-scjd6b400lsi-400a-3-pole-circuit-breaker","title":"Siemens SCJD6B400LSI - 400 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens SCJD6B400LSI—a robust 400A, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. Built for demanding environments, this device combines compact physical size with serious protection capabilities, making it a smart choice for higher-current, three-phase installations.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400A, 3-pole protection\u003c\/strong\u003e for reliable control of three-phase circuits, consolidating protection for large loads into a single, space-efficient unit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining fast magnetic response to short circuits with dependable thermal overload sensing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space and simplifies wiring layouts without compromising protection performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e engineered to pair with matching Siemens loadcenters and panelboards, ensuring coordinated trip characteristics and clean labeling.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile across sectors\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications, providing a single, reliable solution for diverse projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat you gain in daily operation\u003c\/h2\u003e\n\u003cp\u003eWith a 400A rating and three-pole construction, this breaker is ideal for feeding large circuits or serving as a protective device within appropriately sized panels. The thermal-magnetic trip system responds decisively to short circuits while reducing nuisance trips during temporary overloads. The compact form factor supports cleaner panel layouts and easier wiring management in crowded electrical enclosures.\u003c\/p\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SCJD6B400LSI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal for\u003c\/h2\u003e\n\u003cp\u003eElectricians and panel installers addressing large residential subpanels, commercial electrical rooms, and light-industrial installations where high-current, reliable protection is essential. If you need a Siemens-aligned, three-phase protection device that integrates seamlessly with your existing panel setup, this SCJD6B400LSI delivers consistent performance and straightforward installation.\u003c\/p\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eChoose Siemens OEM loadcenters and panelboards when maximum system coordination and labeling clarity are priorities.\u003c\/li\u003e \u003cli\u003eFollow standard electrical practices for three-phase panels, and torque specifications provided by panelboard manufacturers to ensure secure, code-compliant connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355168723106,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-scjd6b400lsi-400-a-3-pole-circuit-breaker-ampstate-breakers-776.webp?v=1788737865","url":"https:\/\/www.ampstate.com\/products\/siemens-scjd6b400lsi-400a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}