{"product_id":"eaton-hfb1040l-circuit-breaker","title":"Eaton | HFB1040L | Circuit Breaker | 40A | 347V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Eaton HFB1040L circuit breaker — a purpose-built protection device tailored for 347V electrical environments that demand precise 40A protection. This unit is engineered for maintenance, retrofit, and replacement projects where matching specs matters and downtime is minimized.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 347V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Eaton HFB1040L\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this breaker unique\u003c\/h3\u003e\n\u003cp\u003eDesigned to integrate seamlessly with Eaton panels and original electricals, the HFB1040L delivers dependable current interruption that aligns with the system’s intended protection profile. Its 347V rating makes it well-suited for higher-voltage commercial and industrial circuits, while the 40A setting provides precise overcurrent protection for feeders and branch circuits. Because it’s an Eaton component, you benefit from consistent mounting footprints, reliable performance, and compatibility with existing Eaton infrastructures.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: replace aging or worn-out breakers in 347V circuits to restore reliable protection.\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade or reconfigure existing Eaton-based electrical systems while maintaining original protection characteristics.\u003c\/li\u003e \u003cli\u003eReplacement: match exact specs during panel repairs, ensuring continued compliance and safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this for your project\u003c\/h3\u003e\n\u003cp\u003eThe HFB1040L is more than a generic component — it’s a part with a specific fit and rating designed to work in tandem with Eaton’s hardware and engineering standards. By selecting the exact model, you preserve system integrity, minimize troubleshooting, and maintain consistent electrical protection across your installation.\u003c\/p\u003e \u003ch3\u003eCompatibility and ordering notes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm fit and ratings before ordering. The \u003cstrong\u003epart number HFB1040L\u003c\/strong\u003e is the best reference for compatibility with your panel or distribution setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426468384930,"sku":"HFB1040L","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hfb1040l-circuit-breaker-40a-347v-904.webp?v=1789583318","url":"https:\/\/www.ampstate.com\/products\/eaton-hfb1040l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}