{"product_id":"21-c145nfj-circuit-breaker","title":"21-C145NFJ | Circuit Breaker | 225A","description":"\u003cdiv\u003e\n\u003cp\u003eThe 21-C145NFJ circuit breaker is a purpose-built, industrial-grade device crafted for reliability in demanding electrical environments. Designed to be used where maintaining power integrity matters—from routine maintenance to retrofits and replacements—this unit ensures your protection remains intact when you need it most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 225 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 21-C145NFJ\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Industrial circuits requiring precise overcurrent protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering; the part number is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets this breaker apart\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExact 21-C145NFJ form factor and electrical characteristics, ensuring seamless substitution in panels and enclosures that specify this part number.\u003c\/li\u003e \u003cli\u003eReliable protection against overcurrent events, helping prevent equipment damage and downtime in manufacturing lines, data centers, and large facilities.\u003c\/li\u003e \u003cli\u003eMaintenance-friendly design for retrofit projects, simplifying planning and reducing system downtime during upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEquipment upgrades and panel retrofits that require a precise 225 A circuit protection device.\u003c\/li\u003e \u003cli\u003eFacilities seeking a verified, supplier-referenced replacement to maintain continuity of operations.\u003c\/li\u003e \u003cli\u003eElectrical engineers and technicians specifying exact part numbers for warranty and compatibility reasons.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for ensuring a proper fit\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCross-check the exact panel model, busbar arrangement, and terminal type against your equipment documentation.\u003c\/li\u003e \u003cli\u003eUse the part number 21-C145NFJ as the primary compatibility reference when sourcing spares or replacements.\u003c\/li\u003e \u003cli\u003eIf in doubt, consult your panel manufacturer guidance or a qualified electrician to verify ratings before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426097057954,"sku":"21-C145NFJ","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/21-c145nfj-circuit-breaker-225a-746.webp?v=1789510284","url":"https:\/\/www.ampstate.com\/products\/21-c145nfj-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}