{"product_id":"westinghouse-nb3300p-circuit-breaker","title":"Westinghouse | NB3300P | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse NB3300P Circuit Breaker\u003c\/strong\u003e delivers dependable overcurrent protection in a rugged, purpose-built package. This 300A, 3-pole, 600V unit is crafted for maintenance, retrofit, and replacement projects where exact specifications matter and downtime is minimized.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e NB3300P (best compatibility reference)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the NB3300P for your panel upgrade or service change\u003c\/h3\u003e\n\u003cp\u003eWhen your system requires a precise 300A, 3-pole, 600V protection device, the NB3300P ensures you stay within established specifications and preserve protection curves. Relying on the exact part number reduces guesswork during replacements and helps maintain panel listings and warranty considerations where applicable.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance replacements in commercial or light-industrial panels that rely on a 300A main breaker.\u003c\/li\u003e \u003cli\u003eRetrofits to upgrade service capacity or replace aging protection devices without a full panel overhaul.\u003c\/li\u003e \u003cli\u003eRepairs or swaps in facilities that standardize on Westinghouse NB-series breakers for consistent performance and easier ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm fit and ratings before ordering. The NB3300P part number is the best reference for compatibility with your panel and bus arrangement.\u003c\/p\u003e \u003ch3\u003eInstallation considerations and practical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel accepts a 3-pole, 600V main breaker with a 300A rating to ensure proper fit and performance.\u003c\/li\u003e \u003cli\u003eCheck mounting style, enclosure footprint, and bus configuration to align with the NB3300P’s design.\u003c\/li\u003e \u003cli\u003eReview your facility’s listings and certification requirements to confirm that using NB3300P maintains compliance and system integrity.\u003c\/li\u003e \u003cli\u003eKeep the exact part on hand to streamline future swaps and minimize downtime during maintenance windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for reliability in demanding environments, the Westinghouse NB3300P is a precise, purpose-built solution for seasoned electricians and facility engineers tackling protection upgrades, panel retrofits, or replacement projects. It’s not just a part—it’s a strategic choice to protect equipment, people, and production uptime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46427171553442,"sku":"NB3300P","price":6670.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-nb3300p-circuit-breaker-300a-3-pole-600v-268.webp?v=1789676998","url":"https:\/\/www.ampstate.com\/products\/westinghouse-nb3300p-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}