{"product_id":"nfj424250-circuit-breaker","title":"NFJ424250 | Circuit Breaker | 250A | 2-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the NFJ424250 Industrial Circuit Breaker — a purpose-built solution for maintenance, retrofit, and replacement in demanding 480V power systems. This is the exact two-pole, 250A breaker you need when reliability and precise compatibility matter most in industrial environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specs at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 250A\u003c\/li\u003e \u003cli\u003ePoles: 2-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 480V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe NFJ424250 is engineered to interrupt both hot lines simultaneously, delivering dependable protection for heavy equipment, motors, and drives in 480V distributions. Because it’s identified by a specific part number, it’s the most trustworthy reference when matching panels, enclosures, or retrofit kits—reducing the guesswork and downtime that come with cross-referencing generic breakers.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy choose this circuit breaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eTargeted protection for 480V distribution circuits, helping minimize equipment damage and unplanned outages.\u003c\/li\u003e \u003cli\u003eMaintenance-friendly design that facilitates straightforward swap-in replacement within established panel footprints.\u003c\/li\u003e \u003cli\u003eRetrofit-ready for upgrading legacy setups to current safety and reliability standards without overhauling entire control systems.\u003c\/li\u003e \u003cli\u003eClear compatibility guidance: confirm fit and ratings before ordering to ensure seamless integration with your panel and system fault-current requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eUse cases and scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a worn or obsolete breaker in a 480V, 3-phase distribution panel.\u003c\/li\u003e \u003cli\u003eKeeping a spare on hand for preventive maintenance on critical lines such as conveyors, pumps, and industrial drives.\u003c\/li\u003e \u003cli\u003eRetrofits in manufacturing or processing facilities upgrading legacy electrical infrastructure to modern 480V standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical distinctions that matter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePart-number specificity with NFJ424250 reduces cross-reference errors and ensures compatibility with your existing panel architecture.\u003c\/li\u003e \u003cli\u003e2-Pole design provides guaranteed simultaneous disconnection of both conductors, enhancing safety and protecting downstream equipment.\u003c\/li\u003e \u003cli\u003e250A rating aligns with high-current loads common in industrial applications, offering robust protection without frequent nuisance trips when sized appropriately to the circuit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTips for a smooth installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify your panel’s required interrupt rating and the exact model compatibility using the NFJ424250 part number before purchasing.\u003c\/li\u003e \u003cli\u003eDuring installation, follow your panel manufacturer’s torque and wiring guidelines to ensure reliable electrical connections.\u003c\/li\u003e \u003cli\u003eKeep documentation with the exact part number for future maintenance, ordering, and quick replacement decisions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the NFJ424250 two-pole 480V circuit breaker delivers precise compatibility, reliable protection, and retrofit-friendly versatility for industrial power systems. It’s the prudent choice for safeguarding motors, drives, and heavy equipment while minimizing downtime and maintaining safety standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426431848610,"sku":"NFJ424250","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/nfj424250-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}