{"product_id":"eaton-fd3040-40a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton FD3040 - 40 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton FD3040—a 40A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built to handle the rigors of professional electrical installations, this device safeguards residential, commercial, and light industrial systems with precision and durability.\u003c\/p\u003e \u003ch3\u003eWhy the bolt-on design matters\u003c\/h3\u003e\n\u003cp\u003eThe secure bolt-on mounting creates a rigid, vibration-resistant connection to the bus, minimizing the risk of loose contacts in environments where equipment or machinery causes movement. This translates to fewer nuisance trips and longer-term reliability in real-world installations.\u003c\/p\u003e \u003ch3\u003eThermal-magnetic protection you can trust\u003c\/h3\u003e\n\u003cp\u003eEquipped with a thermal-magnetic trip unit, the FD3040 delivers stable, repeatable protection across a wide range of operating conditions. It combines thermally coordinated overload protection with instantaneous magnetic tripping for short circuits, ensuring fast fault isolation and reduced damage to downstream equipment.\u003c\/p\u003e \u003ch3\u003eWhat makes this breaker unique\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole, 40A, 600V rating\u003c\/strong\u003e for balanced protection of three-phase distribution and control circuits\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e ensures a secure, solid connection in compatible panelboards and load centers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e unit provides reliable coordination and rapid interruption when faults occur\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to fit with matching Eaton and OEM load centers and panelboards\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case construction\u003c\/strong\u003e offers robust insulation and durability in demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing failing breakers in panelboards and load centers that require 3-pole, 40A protection\u003c\/li\u003e \u003cli\u003eProtection for three-phase circuits in commercial spaces, light industrial equipment, and distributed control panels\u003c\/li\u003e \u003cli\u003eNew installations where a reliable bolt-on MCCB is preferred for secure bus connections and long service life\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 FD3040\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\u003eMounting Style:\u003c\/strong\u003e Bolt-on\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\u003ePractical tips for installation and use\u003c\/h3\u003e\n\u003cp\u003eEnsure compatibility with your panelboard’s listing and follow manufacturer torque specifications during installation. Use appropriate mounting hardware to maintain the integrity of the bus connection, and verify that the device’s trip characteristics align with the protection coordination plan for your electrical system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349575258274,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-fd3040-40-a-600-v-3-pole-bolt-on-circuit-breaker-ampstate-341.webp?v=1788685837","url":"https:\/\/www.ampstate.com\/products\/eaton-fd3040-40a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}