{"product_id":"eaton-ehb1100lk-circuit-breaker","title":"Eaton | EHB1100LK | Circuit Breaker | 100A | 1-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton EHB1100LK: a purpose-built 100A, 1-Pole circuit breaker engineered for 277V distribution. This unit is purposefully designed for maintenance, retrofit, and replacement projects where matching specs matters, helping you restore reliable overcurrent protection without surprises.\u003c\/p\u003e \u003ch2\u003eKey details at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e EHB1100LK (best reference for compatibility)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy the EHB1100LK stands out\u003c\/h2\u003e\n\u003cp\u003eUnlike generic substitutes, this Eaton breaker is aligned with the same form, fit, and electrical characteristics used in Eaton panels and distribution setups. The EHB1100LK is specifically suited for 277V circuits, which are common in commercial lighting, HVAC controls, and other high-voltage branch installations. Its single-pole design provides focused protection for a single hot leg, delivering quick interruption when overcurrent occurs and helping protect wiring and devices in your 277V footprint.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance work on existing Eaton panelboards and distribution boards that require a 100A, 1-Pole, 277V breaker.\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading or replacing aging breakers demands exact compatibility with the original spec sheet.\u003c\/li\u003e \u003cli\u003eReplacement of a failed or worn breaker in commercial electrical systems powered by 277V circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat problems this solves\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePrevents mismatches during replacement by relying on the precise EHB1100LK part number for compatibility.\u003c\/li\u003e \u003cli\u003eReduces downtime in service upgrades by providing a straightforward, plug-and-play solution for 277V line protection.\u003c\/li\u003e \u003cli\u003ePreserves the integrity of your electrical design by maintaining the intended protection scheme on 277V circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical guidance for installation and use\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, verify that the panel and circuit require a 100A, 1-Pole, 277V protective device and cross-check labeling on the panel schedule.\u003c\/li\u003e \u003cli\u003eWhen wiring, ensure proper termination on the line and load terminals and follow standard safety practices for high-voltage work.\u003c\/li\u003e \u003cli\u003eTorque specifications and mounting alignment should conform to your panel manufacturer’s guidelines to ensure reliable operation.\u003c\/li\u003e \u003cli\u003eUse the EHB1100LK as a targeted replacement for a like-for-like protection scheme in Eaton systems to maintain electrical performance consistency.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eNotes on compatibility\u003c\/h2\u003e\n\u003cp\u003eFit and ratings are critical—confirm the 277V rating and 100A capability align with your circuit requirements. The part number EHB1100LK serves as the most reliable reference for ensuring compatibility within Eaton-based installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427284013218,"sku":"EHB1100LK","price":510.0,"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-ehb1100lk-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}