{"product_id":"eaton-ehd3045-45a-480v-3-pole-bolt-on-circuit-breaker","title":"Eaton EHD3045 - 45 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton EHD3045 is a rugged 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection at 480V. With a 45A rating, it’s built to handle demanding commercial and light industrial loads while preserving the integrity of your panelboards and loadcenters. This isn’t just a switch — it’s a protective backbone for your electrical distribution.\u003c\/p\u003e \u003ch3\u003eWhy the EHD3045 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e ensures a rigid, vibration-resistant bus connection, reducing wear and ensuring reliable operation in environments with equipment vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection performance across varying temperatures and load conditions, helping prevent nuisance trips while safeguarding equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to work seamlessly with matching OEM loadcenters and panelboards, making replacements and upgrades straightforward and downtime-minimizing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase protection\u003c\/strong\u003e with 3-pole configuration delivers coordinated safeguarding for balanced three-phase systems common in commercial and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial installations where reliable motor control, distribution, and equipment protection are essential.\u003c\/li\u003e\n\u003c\/ul\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 EHD3045\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 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480V\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\u003eIdeal use cases and scenarios\u003c\/h3\u003e\n\u003cp\u003eUse the Eaton EHD3045 to protect branch circuits feeding motors, compressors, HVAC units, and other three-phase equipment in commercial spaces, data centers, or light industrial facilities. Its bolt-on construction makes it a reliable upgrade or replacement in existing panelboards and loadcenters that require sturdy, vibration-resistant connections. If you’re upgrading an older distribution panel or expanding a three-phase distribution network, this 45A, 480V breaker helps maintain system safety without compromising performance.\u003c\/p\u003e \u003ch3\u003eInstallation notes and compatibility\u003c\/h3\u003e\n\u003cp\u003eFor optimal results, pair the EHD3045 with matching OEM panelboards and loadcenters designed for bolt-on MCCB protection. Follow applicable electrical codes and manufacturer torque recommendations during installation to ensure a secure connection and proper trip sensitivity. This breaker is purpose-built to slot into compatible assemblies, delivering consistent protection in demanding environments.\u003c\/p\u003e \u003cp\u003eEngineered for reliability and straightforward compatibility, the Eaton EHD3045 provides precise, dependable protection for your three-phase distribution needs. Trust AmpState to deliver a proven solution that aligns with your panelboard and loadcenter requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349554352290,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-ehd3045-45-a-480-v-3-pole-bolt-on-circuit-breaker-ampstate-735.webp?v=1788682516","url":"https:\/\/www.ampstate.com\/products\/eaton-ehd3045-45a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}