{"product_id":"eaton-hbax3040h-40a-3-pole-bolt-on-circuit-breaker","title":"Eaton HBAX3040H - 40 A, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HBAX3040H is a 40A, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure in real-world installations, its secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping maintain consistent electrical performance in both new builds and upgrades.\u003c\/p\u003e \u003cp\u003eEquipped with a thermal-magnetic trip unit, the HBAX3040H provides stable, repeatable protection across varying loads and temperatures. The thermal element handles sustained overloads, while the magnetic element delivers a fast, decisive response to short circuits—minimizing equipment damage and downtime without nuisance trips.\u003c\/p\u003e \u003cp\u003eDesigned for seamless integration, this breaker is compatible with matching OEM loadcenters and panelboards, making it a reliable choice for Eaton-based systems in residential, commercial, and light industrial settings.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\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 HBAX3040H\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 40 A\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\u003eWho benefits from the HBAX3040H\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors and technicians installing or upgrading Eaton-based panelboards and loadcenters\u003c\/li\u003e \u003cli\u003eFacility managers overseeing commercial spaces and light industrial environments\u003c\/li\u003e \u003cli\u003eResidential installers seeking durable, reliable protection for multi-wire and three-phase distribution, where applicable\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases and benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtects critical branch circuits in panelboards where stable protection and long-term reliability are essential\u003c\/li\u003e \u003cli\u003eIdeal for retrofit projects that require compatible, OEM-mitted components to maintain system integrity\u003c\/li\u003e \u003cli\u003eSuitable for environments with periodic vibration or movement, thanks to secure bolt-on mounting that reduces bus connection stress\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility considerations\u003c\/h3\u003e\n\u003cp\u003eTo maximize performance, pair the HBAX3040H with matching Eaton OEM loadcenters and panelboards. Follow standard safety practices and the panel manufacturer’s guidelines for installation. The bolt-on design simplifies mounting and serviceability, helping technicians perform quick replacements or upgrades with minimal downtime.\u003c\/p\u003e \u003cp\u003eIn practice, the HBAX3040H delivers clear advantages: a robust physical connection through bolt-on mounting, precise thermal-magnetic protection for consistent response to faults, and reliable compatibility within Eaton’s panel and loadcenter ecosystem. For projects requiring solid, field-proven protection on 40-amp circuits within three-pole configurations, this breaker provides a dependable, turnkey solution that fits seamlessly into established Eaton installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349593444514,"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_805c3a63-ea64-4fa2-b491-367d4c5f73de.png?v=1764150718","url":"https:\/\/www.ampstate.com\/products\/eaton-hbax3040h-40a-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}