{"product_id":"eaton-449d431g03","title":"Eaton 449D431G03 Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton 449D431G03 Circuit Breaker is a genuine Eaton replacement component designed to protect electrical panels from overloads and short circuits. Built on Eaton’s reputation for dependable electrical protection, this part number 449D431G03 identifies a precise breaker profile that ensures you’re using an authentic, properly engineered device in your system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this specific breaker matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAuthentic part number:\u003c\/strong\u003e 449D431G03 guarantees you’re sourcing the exact model Eaton designed for reliable protection in compatible panel configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProtects circuit integrity:\u003c\/strong\u003e When current exceeds safe levels, the breaker trips to interrupt the circuit, helping prevent wiring damage and reduce fire risk.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConsistent performance:\u003c\/strong\u003e Engineered for predictable trip response, contributing to steady operation of connected equipment and loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, serviceable design:\u003c\/strong\u003e Built to withstand regular electrical cycling and provide long-term service in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEase of maintenance:\u003c\/strong\u003e A straightforward replacement option for technicians performing panel maintenance or part upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCommercial facilities and small to mid-size industrial environments requiring reliable panel protection.\u003c\/li\u003e \u003cli\u003eMaintenance cycles where authentic Eaton replacement breakers are preferred to maintain system integrity.\u003c\/li\u003e \u003cli\u003eSpare parts kits for facilities that rely on quick, downtime-minimizing component swaps.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to verify compatibility (quick guidance)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm that your electrical panel or load center is designed to accept the 449D431G03 model and this specific part number.\u003c\/li\u003e \u003cli\u003eCompare the breaker frame size and mounting style with your existing unit to ensure a proper fit.\u003c\/li\u003e \u003cli\u003eCheck that the application matches the intended protection needs and that the panel’s documentation references the Eaton 449D431G03 (or a compatible equivalent) as a replacement part.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and ongoing reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways shut off main power and follow lockout\/tagout procedures before replacing any circuit breaker.\u003c\/li\u003e \u003cli\u003eKeep a small inventory of genuine Eaton parts, including the 449D431G03, to minimize downtime during maintenance.\u003c\/li\u003e \u003cli\u003eDocument the replacement: note the part number, panel model, and date of service for future reference and warranty considerations.\u003c\/li\u003e \u003cli\u003eStore replacement breakers in a clean, dry environment to preserve performance and avoid corrosion.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re maintaining an office building, a warehouse, or a light industrial setup, the Eaton 449D431G03 Circuit Breaker offers a trustworthy, authentic solution for protecting electrical circuits and ensuring smooth operation of connected equipment. Embrace reliable protection with a part that carries the Eaton name and the precise designation 449D431G03.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423655645346,"sku":"449D431G03","price":510.0,"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\/eaton-449d431g03","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}