{"product_id":"eaton-ehd1045-45a-277v-1-pole-bolt-on-circuit-breaker","title":"Eaton EHD1045 - 45 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton EHD1045 is a 45A, 277V, 1-pole bolt-on molded case circuit breaker designed to safeguard branch circuits with precision and reliability. Built to anchor your protection strategy in panelboards and loadcenters, this breaker delivers a rugged, vibration-resistant connection that stays secure even in demanding electrical environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays tight through steady operation and movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines precise thermal overload sensing with instantaneous magnetic trip, delivering stable, repeatable protection across temperature changes and load fluctuations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e45A, 277V, 1-pole design\u003c\/strong\u003e ideal for single-phase circuits common in commercial lighting and small equipment feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel compatibility\u003c\/strong\u003e crafted to be compatible with matching OEM loadcenters and panelboards, simplifying replacement and ensuring reliable fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable overcurrent and short-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and benefits you can count on:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtect 277V lighting circuits in commercial spaces, offices, and retail environments from overcurrent and short circuits, reducing the risk of fire or equipment damage.\u003c\/li\u003e \u003cli\u003eProvide robust protection for branch circuits feeding small mechanical loads or control circuits in light industrial settings, while maintaining easy maintenance and replacement within Eaton’s EHD family.\u003c\/li\u003e \u003cli\u003eRely on a dependable add-on breaker that complements your OEM panelboard lineup, helping keep existing infrastructure safe without unnecessary upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e EHD1045\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:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1\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 \u003cp\u003eEngineered for durability, seamless panel integration, and predictable protection performance, the Eaton EHD1045 from AmpState is the reliable choice when you need precise, code-compliant circuit protection that holds up in busy electrical rooms. Add it to your order today and secure lasting protection for your electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349551042722,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_33fb678c-ad65-4d0f-946e-5197dc31fef6.png?v=1764149437","url":"https:\/\/www.ampstate.com\/products\/eaton-ehd1045-45a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}