{"product_id":"square-d-fi36090-90a-3-pole-plug-in-circuit-breaker","title":"Square D FI36090 - 90 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D FI36090 90A, 3-Pole Plug-In Molded-Case Circuit Breaker\u003c\/strong\u003e — available from AmpState — delivers reliable branch-circuit protection for panelboards and load centers in residential, commercial, and light industrial environments. Built with a fast plug-in connection, it minimizes installation time and downtime when replacing breakers or upgrading panels, while maintaining safety and dependable performance.\u003c\/p\u003e \u003ch3\u003eKey benefits you can count on\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in installation\u003c\/strong\u003e: streamlined connection for quick swaps in compatible Square D panelboards and load centers, reducing service interruptions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: combines a dependable thermal overload protection with an instantaneous magnetic trip for short-circuit events, delivering stable, repeatable protection across operating conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 90A design\u003c\/strong\u003e: ideal for 3-phase circuits and balanced protection in commercial or light industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e: engineered to fit and function with matching Square D OEM load centers and panelboards, preserving listing and wiring integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e: well-suited for new installations, panel upgrades, or service improvements in a range of environments from homes to small offices and workshops.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 FI36090\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 90A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Plug-in\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 and practical scenarios\u003c\/h3\u003e\n\u003cp\u003eWhether you’re upgrading an existing panel or deploying a new one, the FI36090 provides dependable protection for 3-phase services and shared circuits in:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential multi-family units and basements requiring robust branch-circuit protection\u003c\/li\u003e \u003cli\u003eSmall commercial offices, retail spaces, and light industrial environments with 3‑phase or multi-wire circuits\u003c\/li\u003e \u003cli\u003ePanelboard refresh projects where quick, reliable replacement minimizes downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters in the real world\u003c\/h3\u003e\n\u003cp\u003eChoosing the FI36090 isn’t just about meeting a specification—it’s about keeping electrical systems safe and up to code with minimal disruption. The combination of a fast plug-in connection, a thermal-magnetic trip for steady protection, and OEM-compatible design means you get a breaker that fits right the first time and continues to perform reliably under varying loads and conditions.\u003c\/p\u003e \u003cp\u003eFor installers and maintenance professionals, this 90A 3-pole plug-in breaker is a practical, code-conscious choice that supports efficient service workflows, reduces replacement time, and helps maintain uninterrupted power to critical circuits in both commercial and residential settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355238453410,"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-fi36090-90-a-3-pole-plug-in-circuit-breaker-ampstate-785.webp?v=1788745078","url":"https:\/\/www.ampstate.com\/products\/square-d-fi36090-90a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}