{"product_id":"square-d-ejb24100-100a-480v-2-pole-bolt-on-circuit-breaker","title":"Square D EJB24100 - 100 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D EJB24100—a 100 A, 480 V, 2-pole bolt-on molded case circuit breaker built to shield your panelboards and load centers from overcurrent and short-circuit events. Designed for reliable protection across residential, commercial, and light industrial applications, this breaker is engineered to perform when it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: A rigid, vibration-resistant bus connection minimizes movement and arcing, delivering dependable electrical integrity even in environments with vibration or heavy loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Combines thermal protection for overloads with magnetic protection for fast short-circuit disconnections, delivering stable, repeatable protection performance you can rely on.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e: Specifically designed to match Square D load centers and panelboards, ensuring precise fit, correct trip curves, and streamlined field replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile electrical protection\u003c\/strong\u003e: Ideal for branch circuit overcurrent and short-circuit protection in a wide range of installations—from home electrical panels to commercial distribution systems and light industrial panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat makes the EJB24100 stand out\u003c\/strong\u003e is not just its specs, but how it fits into real-world electrical designs. When you’re upgrading or maintaining a panel, you need a breaker that installs quickly without sacrificing safety. The bolt-on design minimizes installation fiddliness, while the thermal-magnetic trip unit provides consistent protection across varying ambient temperatures and load conditions.\u003c\/p\u003e \u003ch3\u003eProduct highlights and specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e EJB24100\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 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 2\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\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing breakers in existing Square D panelboards and load centers to maintain accurate protection curves and reliable operation.\u003c\/li\u003e \u003cli\u003eInstalling in commercial or light industrial panels where 480 V systems and 2-pole protection are required.\u003c\/li\u003e \u003cli\u003eServing as a robust, maintenance-friendly solution in environments subject to vibration or mechanical stress, thanks to secure bolt-on mounting.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and long-term reliability\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure proper torque on the bolt-on mounting to maximize the rigidity of the bus connection and minimize connection looseness over time.\u003c\/li\u003e \u003cli\u003eVerify compatibility with your existing OEM load centers and panelboards to maintain consistent protection characteristics.\u003c\/li\u003e \u003cli\u003eUse in panels designed for 480 V systems to avoid nuisance trips or insulation issues—this breaker is purpose-built for that voltage class.\u003c\/li\u003e \u003cli\u003eSchedule periodic inspections of connections and the mounting hardware in environments with vibration or temperature cycling to sustain long-term performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe Square D EJB24100 is a purpose-built solution for those who demand reliable branch circuit protection without compromises. With its bolt-on precision, thermal-magnetic protection, and OEM-ready compatibility, it’s a prudent choice for safeguarding electrical systems in a wide range of setups.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355208241314,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_c1726e2a-9e04-4843-a2f0-f4ca95ba289d.png?v=1764690377","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb24100-100a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}