{"product_id":"eaton-faz-b40-3n-40a-480v-3-pole-circuit-breaker","title":"Eaton FAZ-B40-3N - 40 A, 480 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton FAZ-B40-3N is a robust 40 A, 480 V, 3-pole molded-case circuit breaker designed to protect your electrical distribution system from overcurrent and short-circuit events. Built for dependable performance in panelboards and load centers, it delivers consistent protection where three-phase power is in use.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e helps maximize panel space without compromising protection or reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by combining overload protection with fast short-circuit interruption, reducing nuisance trips and safeguarding downstream equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e is designed to work with matching Eaton loadcenters and panelboards, ensuring seamless integration and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where 3-phase 480 V distribution is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat makes it different\u003c\/h2\u003e\n\u003cp\u003eUnlike simple single-function breakers, the FAZ-B40-3N blends a compact MCCB form with a precise thermal-magnetic trip mechanism. This combination delivers predictable fault response across a range of fault currents, helping protect feeders, motors, and lighting circuits in busy panel deployments. Its three-pole configuration ensures balanced protection across all phases, essential for equipment and systems that rely on true three-phase power.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eNew installations in commercial offices, retail spaces, and light industrial facilities that utilize 480 V three-phase power.\u003c\/li\u003e \u003cli\u003eReplacement or retrofit projects in Eaton panelboards and load centers to maintain consistent protection standards.\u003c\/li\u003e \u003cli\u003eProtecting branch circuits that feed motors, HVAC equipment, and distribution feeders where reliable trip performance matters.\u003c\/li\u003e \u003cli\u003eSystems where space efficiency in the panel is a priority due to compact design.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical specifications at a glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e FAZ-B40-3N\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker (MCCB)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 40 A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480 V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection in panelboards and load centers\u003c\/p\u003e \u003ch2\u003ePractical tips for installation and operation\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panelboard or load center is compatible with the FAZ-B40-3N design to ensure proper fit and performance.\u003c\/li\u003e \u003cli\u003ePair with other appropriately rated Eaton devices in the same series to maintain coordinated protection across the system.\u003c\/li\u003e \u003cli\u003ePlan for motor starting currents and short-circuit events by ensuring the 3-pole setup provides balanced distribution and protection across all phases.\u003c\/li\u003e \u003cli\u003eSchedule periodic inspection of connections and mounting to maintain reliable trip performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349557530786,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_d938e199-6554-4b0c-a890-2b5a07ada4d1.png?v=1764149651","url":"https:\/\/www.ampstate.com\/products\/eaton-faz-b40-3n-40a-480v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}