{"product_id":"eaton-fdb3040l-40a-600v-3-pole-circuit-breaker","title":"Eaton FDB3040L - 40 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton FDB3040L is a 40A, 600V, 3-pole molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to fit seamlessly with matching OEM panels, this unit delivers reliable protection across residential, commercial, and light industrial environments.\u003c\/p\u003e \u003ch3\u003eWhy the FDB3040L stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e optimizes panel space without sacrificing performance, making it ideal for dense load centers and retrofit installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by responding to both overloads and short circuits, reducing nuisance trips and ensuring consistent performance over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ensures simultaneous disconnection across all three legs in three-phase systems, enhancing safety and coordination in multi-wire circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e broadens applicability beyond residential panels to commercial and light industrial panels where higher voltage distribution is common.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e40A current rating\u003c\/strong\u003e protects branch circuits and connected equipment without unnecessary interruption, supporting typical lighting, receptacle, and equipment feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e designed to align with matching Eaton panelboards and OEM load centers for a straightforward, reliable installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted performance\u003c\/strong\u003e from Eaton’s molded case breaker line, delivering durable construction and long-term protection for critical electrical infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading a residential multi‑wire distribution panel where a dedicated 40A branch circuit feeds a high-draw appliance or subpanel, while maintaining coordinated trip across all phases.\u003c\/li\u003e \u003cli\u003eInstalling in small commercial offices or light retail spaces with three-phase distribution, where reliable overcurrent and short-circuit protection is essential for panels, feeders, and equipment circuits.\u003c\/li\u003e \u003cli\u003eRetrofits in industrial enclosures where higher voltage distribution is present, ensuring safe de-energization of all lines during a fault.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifics\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FDB3040L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eChoosing the right breaker for your panel\u003c\/h3\u003e\n\u003cp\u003eWhen you need dependable protection that won’t disrupt critical loads, the Eaton FDB3040L provides precise trip performance and panel compatibility. It’s a practical choice for installers prioritizing panel density, reliable three‑phase protection, and compatibility with Eaton’s family of load centers. With its compact footprint and robust thermal-magnetic protection, it helps you design safer, more resilient electrical systems across homes, workplaces, and light industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349580402850,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-fdb3040l-40-a-600-v-3-pole-circuit-breaker-ampstate-breakers-754.webp?v=1788686534","url":"https:\/\/www.ampstate.com\/products\/eaton-fdb3040l-40a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}