{"product_id":"square-d-fal340451021-45a-3p-480v-circuit-breaker","title":"Square D FAL340451021 45A 3P 480V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D FAL340451021 is a robust circuit breaker for protective applications in panelboards, load centers, and electrical distribution networks. With a 45 A rating, three poles, and 480V operation, it is designed to reliably interrupt fault currents in three-phase systems, protecting motors, drives, and feeders in demanding commercial and industrial environments. This specific part number is ideal for retrofit work where maintaining a consistent kit of components matters for maintenance planning and asset management.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FAL340451021\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Panelboards, Load Centers, Electrical Distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e AmpState\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model matters\u003c\/h3\u003e\n\u003cp\u003eIn three-phase systems, a 3P 480V circuit breaker like the FAL340451021 provides synchronized protection across all phases. Using the exact part number aids in keeping your electrical distribution organized, simplifies maintenance scheduling, and reduces the risk of mismatched replacements during service outages. Square D builds reliability into every unit, designed to fit standard Square D enclosures and mounting patterns.\u003c\/p\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectrical contractors conducting panel retrofits or upgrades in facilities with 480V three-phase distribution\u003c\/li\u003e\n\u003cli\u003eFacilities managers stocking spare parts to minimize downtime during maintenance\u003c\/li\u003e\n\u003cli\u003eIndustrial environments where consistent, three-pole protection is essential for motor loads and feeders\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing a failed 3P 480V circuit breaker in a commercial or light-industrial panel\u003c\/li\u003e\n\u003cli\u003eStandardizing replacement parts across multiple panels to streamline service procedures\u003c\/li\u003e\n\u003cli\u003ePlanning preventive maintenance with a readily identifiable, return-to-stock part number\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and support\u003c\/h3\u003e\n\u003cp\u003eNot sure this is the right fit for your panel? AmpState offers support to confirm compatibility with your enclosure and bus configuration. If you need help matching a part number or verifying fit, contact AmpState and their team will assist you in validating the connection and specifications.\u003c\/p\u003e \u003cp\u003eReady to secure dependable protection for your 480V three-phase distribution? The Square D FAL340451021 45A 3P 480V Circuit Breaker is available from AmpState and ready to ship.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413674709154,"sku":"FAL340451021","price":4191.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fal340451021-45a-3p-480v-circuit-breaker-ampstate-breakers-905.webp?v=1789078130","url":"https:\/\/www.ampstate.com\/products\/square-d-fal340451021-45a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}