{"product_id":"hfb3040-circuit-breaker","title":"HFB3040 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet HFB3040, a rugged industrial circuit breaker designed to guard three-phase power systems with precision. With a 40A rating across 3 poles and a 600V operating ceiling, this unit is built to handle demanding electrical environments, delivering reliable protection when it matters most. Whether you’re performing routine maintenance, retrofitting an existing panel, or replacing a tired breaker, HFB3040 provides the exact specs you need to keep equipment running smoothly.\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\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HFB3040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker fits industrial needs\u003c\/h3\u003e\n\u003cp\u003eThree-pole protection is essential for balanced three-phase systems, ensuring simultaneous interruption across all conductors to prevent phase-to-phase faults. The 40A rating makes it suitable for motor circuits, distribution panels, and equipment that require solid overcurrent protection without compromising uptime. Its 600V rating expands its applicability across a wide range of industrial applications, from manufacturing lines to heavy machinery control panels.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace aging breakers to restore reliable protection without changing your system’s design.\u003c\/li\u003e \u003cli\u003eRetrofit: Update legacy panels with a compatible 3-pole, 40A, 600V solution when upgrading to newer components.\u003c\/li\u003e \u003cli\u003eReplacement: Swap in a like-for-like part (HFB3040) to preserve existing wiring, labeling, and panel layouts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, ratings, and compatibility\u003c\/h3\u003e\n\u003cp\u003eNotes specify to confirm fit and ratings before ordering. The part number is the best reference for compatibility, so verifying that HFB3040 matches your panel labeling and system requirements will minimize downtime and ensure seamless integration.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure the panel is de-energized and follow all safety protocols before replacement.\u003c\/li\u003e \u003cli\u003eCross-check the system’s three-phase configuration to confirm a 3-pole device is required.\u003c\/li\u003e \u003cli\u003eKeep the original part number as your reference during ordering to avoid mismatches.\u003c\/li\u003e \u003cli\u003eDocument the replacement with the panel’s maintenance logs for future serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eHFB3040 delivers focused, reliable protection for three-phase installations where exact specifications matter. If your project requires a 40A, 3-Pole, 600V circuit breaker with a clear compatibility reference, this unit is engineered to fit and perform when you need it most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46424834506914,"sku":"HFB3040","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\/hfb3040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}