{"product_id":"square-d-kc342501021-250a-3p-480v-circuit-breaker","title":"Square D KC342501021 250A 3P 480V Circuit Breaker, Shunt Trip | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D KC342501021 250A 3P 480V circuit breaker with Shunt Trip — a purpose-built protection device designed for reliable, safer electrical distribution in panelboards, load centers, and comprehensive distribution systems. This part is ideal for replacement projects and stocking spares to keep your BOM aligned with the original specification, so maintenance and upgrades stay on track without surprises.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e KC342501021\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker with Shunt Trip\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 250 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-pole (3P)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey benefits that matter in real-world electrical protection:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eShunt Trip capability\u003c\/strong\u003e enables remote tripping for rapid emergency shutdowns, enhancing safety in industrial environments, data centers, and critical facilities. This feature gives you an extra layer of control to prevent damage during fault conditions or process upsets.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBOM-aligned replacement\u003c\/strong\u003e and easy stocking for original installations. Keeping KC342501021 on hand ensures your panelboards and distribution gear stay faithful to the original design, reducing retrofit hassles and compatibility questions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust 3P, 480V protection\u003c\/strong\u003e suited to demanding three-phase applications, enabling dependable circuit isolation and fault interruption across your electrical distribution network.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted brand, proven performance\u003c\/strong\u003e from Square D, a name associated with enduring protection for industrial and commercial power systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eReplacements in existing panelboards and load centers where the original KC342501021 is specified.\u003c\/li\u003e \u003cli\u003eSpare inventory for facilities relying on consistent BOM integrity and fast maintenance turns.\u003c\/li\u003e \u003cli\u003eApplications requiring remote shutdown capability for safety interlocks, emergency stops, or process automation environments.\u003c\/li\u003e \u003cli\u003eNew installations or upgrades that demand a 3-pole, 480V protection device with shunt-trip functionality.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat sets this breaker apart is not just the spec sheet, but how it fits into real-world scenarios. The shunt-trip feature provides immediate control during incidents, while the 250A rating and 3P configuration deliver the robust protection needed for medium- to heavy-load applications. Paired with AmpState’s readiness to support compatibility checks, this breaker helps you minimize downtime and keep your electrical distribution running smoothly.\u003c\/p\u003e \u003cp\u003eIf you’re unsure about fit or compatibility with your panel or BOM, AmpState is ready to assist. \u003cstrong\u003eNeed help matching a part number or confirming compatibility?\u003c\/strong\u003e Message the AmpState team and get expert guidance to confirm the right KC342501021 solution for your system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413670056098,"sku":"KC342501021","price":810.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-kc342501021-250a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}