{"product_id":"eaton-hfd4045l-circuit-breaker","title":"Eaton | HFD4045L | Circuit Breaker | 45A | 4-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton \u003cstrong\u003eHFD4045L\u003c\/strong\u003e 4-pole circuit breaker—built for dependable protection in demanding electrical environments. With a robust 45-amp rating and a 600-volt maximum, this unit is purposefully designed for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-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 HFD4045L\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this 4-pole design matters: a four-wire configuration provides enhanced protection for three-phase systems with a neutral, helping to ensure more balanced fault clearing and safer shutdown in commercial and industrial panels. The 600V rating expands its applicability across a range of higher-voltage distribution applications, delivering consistent performance in demanding environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance teams replacing worn or outdated breakers in industrial control panels\u003c\/li\u003e \u003cli\u003eRetrofit projects upgrading legacy systems to meet current protection standards\u003c\/li\u003e \u003cli\u003eNew installations where a precise 45A, 4-pole 600V solution is required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to use and what to expect\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen planning a replacement or retrofit, use the \u003cstrong\u003eHFD4045L\u003c\/strong\u003e as the compatibility benchmark. Confirm that your equipment’s fit, mounting style, and electrical ratings align with a 4-pole, 45A, 600V configuration. The part number is the most reliable reference for matching this exact Eaton breaker to your panel or distribution system.\u003c\/p\u003e \u003cp\u003ePerformance that matters: this breaker is designed to deliver reliable interruption and protection under fault conditions in systems that demand precise, code-compliant protection. Its 4-pole construction helps ensure coordinated disconnection across all conductors, aiding in safer commissioning and ongoing operation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for best results\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDouble-check panel compatibility against the HFD4045L’s specifications before ordering.\u003c\/li\u003e \u003cli\u003eMaintain alignment with your system’s voltage and conductor configuration to ensure proper protection and signaling.\u003c\/li\u003e \u003cli\u003eConsult a qualified electrician for installation to verify mounting, wiring, and protection settings are correct for your application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427389329570,"sku":"HFD4045L","price":5073.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/eaton-hfd4045l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}