{"product_id":"square-d-fi360401021-circuit-breaker","title":"Square D | FI360401021 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FI360401021—a purpose-built 40A, 3-pole circuit breaker designed for 600V three-phase systems. This unit is built for maintenance, retrofit, and replacement projects where exact specifications matter, delivering reliable protection for industrial power distribution.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\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\n\u003c\/ul\u003e \u003ch2\u003eWhat makes this model stand out\u003c\/h2\u003e\n\u003cp\u003eIn a world of interchangeable parts, the FI360401021 stands apart as a genuine Square D device with a precise spec match. Using the exact part number as your reference minimizes compatibility risk when updating panels, retrofitting older installations, or replacing a failed breaker. The result is quicker sourcing, fewer installation surprises, and a smoother maintenance window for critical equipment.\u003c\/p\u003e \u003ch2\u003eWho it's for\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers and electricians responsible for 600V three-phase distribution in manufacturing, processing, and industrial environments\u003c\/li\u003e \u003cli\u003eTechnicians performing panel retrofit or replacement where exact part alignment is essential\u003c\/li\u003e \u003cli\u003eMaintenance teams aiming to standardize protective devices across equipment fleets\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eUse cases and practical applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReplacing a worn or failed three-phase breaker in industrial control panels that service motors, conveyors, or compressors\u003c\/li\u003e \u003cli\u003eUpgrading or restoring protection in retrofit projects where 40A, 3-pole, 600V specification is required\u003c\/li\u003e \u003cli\u003eSpecifying exact-fit components for legacy systems to ensure consistent protection characteristics and predictable operation\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings align with your panel and distribution needs. The FI360401021 part number is the most reliable reference for compatibility, so cross-check it against the panel schedule, catalog numbers, and the device’s mounting or bus-bar arrangement. Follow standard electrical safety practices and refer to your panel manufacturer’s guidelines when performing replacements or retrofits.\u003c\/p\u003e \u003ch2\u003eWhy choose this Square D breaker for your project\u003c\/h2\u003e\n\u003cp\u003eChoosing an exact-match part like FI360401021 minimizes installation guesswork, preserves panel coordination, and helps maintain consistent protection across your system. It’s not just a component—it’s a deliberate, spec-aligned decision that supports reliability, reduces downtime, and simplifies future service when you know the exact part to order.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426373226658,"sku":"FI360401021","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-fi360401021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}