{"product_id":"square-d-ejb34100sa-110a-480v-3-pole-bolt-on-circuit-breaker","title":"Square D EJB34100SA - 110 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDiscover reliable protection with the Square D EJB34100SA — a 110 A, 480 V, 3-pole bolt-on molded case circuit breaker designed to safeguard branch circuits in panelboards and load centers. Built for dependable overcurrent and short-circuit protection, this breaker helps keep electrical systems safe and running smoothly across residential, commercial, and light industrial environments.\u003c\/p\u003e \u003ch2\u003eKey advantages\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e delivers a rigid, vibration-resistant bus connection for stable, long-lasting performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by responding to both overload and short-circuit conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e optimized for 480 V systems, ideal for three-phase distribution in larger panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e works with matching Square D load centers and panelboards, ensuring a seamless integration into existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial installations needing dependable branch circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\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 EJB34100SA\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 110 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 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 \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eInstall the EJB34100SA in commercial panelboards and load centers that feed three-phase equipment, machines, or large circuits operating at 480 V. It’s well-suited for office buildings, retail spaces, light industrial facilities, and residential complexes with complex distribution needs. Its bolt-on design accelerates serviceability in environments where vibration might affect connections, and its thermal-magnetic trip ensures predictable responses during fault events.\u003c\/p\u003e \u003ch2\u003ePractical considerations and tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eEnsure pairing with the correct OEM load center or panelboard to maintain compatible trip characteristics and mechanical fit.\u003c\/li\u003e \u003cli\u003eUse in circuits requiring reliable protection against both overheating and short circuits, reducing the risk of equipment damage and fire hazards.\u003c\/li\u003e \u003cli\u003ePlan for straightforward maintenance or replacement with bolt-on mounting, which can simplify field servicing in dense electrical racks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePowered by Square D reliability, the EJB34100SA delivers precise protection for your 480 V, 3-phase distribution needs. Whether upgrading a panel, stocking spare breakers for service fleets, or assembling a new commercial electrical distribution, this 110 A, 3-pole bolt-on breaker provides clear protection performance and seamless compatibility with established Square D panel ecosystems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355212173474,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-ejb34100sa-110-a-480-v-3-pole-bolt-on-circuit-breaker-312.webp?v=1788741726","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb34100sa-110a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}