{"product_id":"square-d-ejb34100-100a-480v-3-pole-bolt-on-circuit-breaker","title":"Square D EJB34100 - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D EJB34100 is a rugged 100 A, 480 V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure the demands of commercial, industrial, and mixed-use spaces, this unit combines robust mounting with precise protection to keep electrical systems running smoothly.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection for long-term reliability in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e delivers stable, repeatable protection by accurately responding to overloads and short circuits, reducing nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design:\u003c\/strong\u003e engineered to work with matching Square D OEM load centers and panelboards, ensuring a seamless fit and predictable electrical performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential, commercial, and light industrial applications where reliable three-phase protection is needed.\u003c\/li\u003e \u003cli\u003ePanelboard and load center retrofits or new installations that require 480 V three-pole protection with a secure bolt-on mount.\u003c\/li\u003e \u003cli\u003eSituations with vibration or movement where a sturdy bus connection helps prevent loosening over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical 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 EJB34100\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 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 \u003ch3\u003ePractical guidance and considerations\u003c\/h3\u003e\n\u003cp\u003ePair this breaker with compatible OEM load centers and panelboards to maintain electrical performance and code compliance. In installations where 480 V three-phase service is standard, the EJB34100 provides a compact, reliable solution for protecting motor loads, feeders, and downstream circuits. Regularly verify mounting integrity and ensure the panel’s rating matches the breaker's 480 V specification to avoid incompatibilities.\u003c\/p\u003e \u003cp\u003eAvailable from AmpState, the Square D EJB34100 delivers authentic, factory-approved protection for your electrical system. If you’re updating an existing installation or planning a new build, this 3-pole bolt-on breaker offers a proven combination of durability, precise protection, and compatibility with existing Square D panelboards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355212107938,"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_3a602fe5-2045-4eff-84c2-b6feed316e33.png?v=1764690400","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb34100-100a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}