{"product_id":"square-d-ma263001021-circuit-breaker","title":"Square D | MA263001021 | Circuit Breaker | 300A | 2-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D MA263001021 circuit breaker is a robust 300 A, 2-pole device designed to deliver reliable overcurrent protection for demanding electrical systems. Rated for 600 V, this breaker is built to handle the high-current needs of commercial and light industrial environments while maintaining clear interruption performance when faults occur.\u003c\/p\u003e \u003cp\u003eIdeal for maintenance, retrofit, and replacement projects where exact specifications matter, this model serves as a precise fit for applications requiring a 300 A, 2-pole, 600 V protection solution. Using the correct part number MA263001021 helps ensure compatibility and safe operation within your panel or load center.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this MA263001021 matters\u003c\/h3\u003e\n\u003cp\u003ePart number MA263001021 is your best reference for compatibility with Square D panels and load centers. Before ordering, confirm fit and ratings to guarantee a seamless replacement or retrofit that maintains proper protection levels and system reliability.\u003c\/p\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFacilities managing high-demand electrical loads that require a 300 A, 2-pole, 600 V breaker\u003c\/li\u003e \u003cli\u003eMaintenance teams replacing failed or worn-out breakers in Square D installations\u003c\/li\u003e \u003cli\u003eRetrofit projects where upgrading protection with a precise 300 A, 2-pole model is warranted\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a blown or worn-out 300 A breaker in a commercial or light industrial panel\u003c\/li\u003e \u003cli\u003eUpgrading panel protection during a retrofit to meet revised electrical requirements\u003c\/li\u003e \u003cli\u003eInstalling a compliant main\/disconnect in systems that require 600 V service with robust current protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways verify the panel model and labeling to ensure the MA263001021 is an allowed replacement type for your specific Square D panel or load center\u003c\/li\u003e \u003cli\u003eConfirm that the service and conductor ratings align with a 600 V, 300 A protection device before installation\u003c\/li\u003e \u003cli\u003eKeep the part number MA263001021 handy as the primary reference when cross-checking compatibility during ordering\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D MA263001021 circuit breaker, you gain a dependable, high‑capacity protection solution that integrates smoothly into established Square D ecosystems, helping you maintain safety, reliability, and uptime across your electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426394951842,"sku":"MA263001021","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\/square-d-ma263001021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}