{"product_id":"westinghouse-hfa3040-circuit-breaker","title":"Westinghouse | HFA3040 | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eThe Westinghouse HFA3040 3-Pole Circuit Breaker is engineered for dependable protection in maintenance, retrofit, and replacement projects where a precise fit matters. When your panel requires a three-pole device, this breaker delivers robust, reliable performance with the exact pole configuration you need.\u003c\/p\u003e \u003ch3\u003eWhy the HFA3040 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection\u003c\/strong\u003e—designed to safely interrupt all three hot conductors in multi-line or 3-phase applications, helping keep complex electrical systems protected.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance-ready and retrofit-friendly\u003c\/strong\u003e—a practical choice for upgrading aging panels or swapping out worn breakers without overhauling your electrical infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest compatibility reference\u003c\/strong\u003e—the part number HFA3040 is the most reliable guide for matching your panel’s requirements, minimizing guesswork in replacement scenarios.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpecification-aligned\u003c\/strong\u003e—built to meet the specs required for Westinghouse environments, ensuring consistent performance when paired with the right panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat you need to know before buying\u003c\/h3\u003e\n\u003cp\u003eBefore placing an order, verify that this is the correct fit for your panel by checking the panel labeling and cross-referencing with the HFA3040 part number. Confirm the appropriate ratings for your system so you maintain safe, code-compliant protection across your installation.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing 3-pole breakers in existing Westinghouse panels that require this exact frame configuration.\u003c\/li\u003e \u003cli\u003eRetrofit projects where three conductors must be simultaneously protected in commercial or industrial electrical gear.\u003c\/li\u003e \u003cli\u003eMaintenance replacements to restore original protection levels without altering the panel’s design.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat you’ll get\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOne Westinghouse HFA3040 3-Pole Circuit Breaker ready for installation in compatible panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and safety tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the main disconnect and verify absence of voltage before handling the breaker.\u003c\/li\u003e \u003cli\u003eDouble-check panel compatibility by matching the part number (HFA3040) and ensuring the panel’s rating aligns with the breaker’s requirements.\u003c\/li\u003e \u003cli\u003eInstall strictly according to local electrical codes and the panel’s manufacturer's guidelines, and use appropriate personal protective equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46424741707938,"sku":"HFA3040","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/westinghouse-hfa3040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}