{"product_id":"eaton-fs340045a-circuit-breaker","title":"Eaton | FS340045A | Circuit Breaker | 45A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Eaton, the FS340045A circuit breaker stands out as a precise, ready-to-install protection device for demanding 480V three-phase systems. With a 45-amp rating and a 3-pole configuration, this breaker is built to safely interrupt fault currents and protect motors, drives, and industrial equipment in manufacturing floors, data centers, and large electrical distribution panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey features and fit-first details\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45 A\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 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e FS340045A — the best reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose FS340045A for maintenance, retrofit, or replacement\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExact compatibility: Ensure safe, predictable performance by matching the exact Eaton catalog part number to your panel or equipment.\u003c\/li\u003e \u003cli\u003eStreamlined retrofit: The 3-pole, 480V specification aligns with common industrial power distribution setups, enabling quick upgrades or replacements with minimal rewiring.\u003c\/li\u003e \u003cli\u003eReliable protection for three-phase systems: Protect motors, conveyors, pumps, and drives in environments where a 480V, three-phase supply is the norm.\u003c\/li\u003e \u003cli\u003eDurable, industry-grade design: Built to withstand demanding industrial conditions and frequent cycling in maintenance-friendly form factors.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical usage scenarios\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eRetrofit an aging 480V electrical panel in a factory, ensuring continued protection with a trusted Eaton part.\u003c\/li\u003e \u003cli\u003eReplace a failing breaker in a three-phase motor circuit, preserving straightforward installation and reliability.\u003c\/li\u003e \u003cli\u003eUpgrade equipment protection in data centers or manufacturing lines that rely on 480V distribution and 3-phase breakers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant compatibility note\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eBefore ordering, confirm fit and ratings for your specific installation. The FS340045A part number is the most reliable reference for compatibility with Eaton panels and 480V three-phase circuits.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInstallation and safety tips\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEnsure power is fully de-energized before servicing or replacement.\u003c\/li\u003e \u003cli\u003eVerify the panel labeling and system voltage to match 480V three-phase configuration.\u003c\/li\u003e \u003cli\u003eFollow the manufacturer’s installation guidelines and local electrical codes for safe, compliant operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhere this fits in your toolkit\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIndustrial electrical distribution\u003c\/li\u003e \u003cli\u003eMotor control centers and machinery panels\u003c\/li\u003e \u003cli\u003eFacility upgrades and preventive maintenance programs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427084980386,"sku":"FS340045A","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-fs340045a-circuit-breaker-45a-3-pole-480v-866.webp?v=1789670641","url":"https:\/\/www.ampstate.com\/products\/eaton-fs340045a-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}