{"product_id":"eaton-hfd1100l-100a-277v-1-pole-bolt-on-circuit-breaker","title":"Eaton HFD1100L - 100 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003eThe Eaton HFD1100L is a purpose-built 100A, 277V, 1-pole bolt-on molded case circuit breaker designed to safeguard branch circuits in panelboards and load centers. With a rugged bolt-on mounting and a precise thermal-magnetic trip system, it delivers dependable overcurrent and short-circuit protection where reliability matters most. \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSecure bolt-on mounting\u003c\/b\u003e delivers a rigid, vibration-resistant bus connection, reducing movement and wear over time for steadier performance in commercial and industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal-magnetic trip unit\u003c\/b\u003e provides stable, repeatable protection across temperature and load variations, automatically responding to both overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e277V specialization\u003c\/b\u003e ideal for commercial lighting and other 277V circuits, delivering appropriate protection exactly where these systems run.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM-compatible design\u003c\/b\u003e engineered to work with matching Eaton OEM load centers and panelboards, helping maintain system integrity and warranty coverage.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile applications\u003c\/b\u003e suitable for residential, commercial, and light industrial use—great for new builds, retrofits, or panelboard upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use scenarios\u003c\/h2\u003e\n\u003cp\u003eUse the HFD1100L as the main or branch protection in panelboards and load centers where 277V circuits are present. It’s a solid choice for: 277V lighting runs in offices, schools, or retail spaces; subpanel feeders in residential or light commercial projects; and replacement or upgrade of existing Eaton bolt-on breakers in compatible panels.\u003c\/p\u003e \u003ch2\u003eWhat it protects and how it helps your system\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eOvercurrent protection\u003c\/b\u003e shields conductors and devices from prolonged overload, preventing insulation damage and fire risk.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eShort-circuit protection\u003c\/b\u003e detects rapid fault currents and clears them quickly to minimize equipment damage and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDurable, molded-case construction\u003c\/b\u003e stands up to everyday panelboard environments, offering long-term reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSimplified installation\u003c\/b\u003e bolt-on mounting reduces installation quirks and ensures a solid connection in vibration-prone settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e HFD1100L\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eAmperage Rating:\u003c\/b\u003e 100A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage Rating:\u003c\/b\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eNumber of Poles:\u003c\/b\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting Style:\u003c\/b\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Eaton HFD1100L for reliable, industry-aligned protection that aligns with your Eaton panelboards and delivers consistent performance in modern commercial and light industrial electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349594362018,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hfd1100l-100-a-277-v-1-pole-bolt-on-circuit-breaker-ampstate-455.webp?v=1788688770","url":"https:\/\/www.ampstate.com\/products\/eaton-hfd1100l-100a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}