{"product_id":"square-d-fi361001021-circuit-breaker","title":"Square D | FI361001021 | Circuit Breaker | 100A | 3-Pole | 600V | Plug-In","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade or replace with precision using the Square D FI361001021 Circuit Breaker. This 100 A, 3-Pole, 600 V plug-in device is designed for quick, reliable maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Plug-In\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number FI361001021\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this for your panel\u003c\/h3\u003e\n\u003cp\u003eDesigned for downtime-sensitive environments, this plug-in breaker drops into compatible Square D panels without rewiring, reducing service interruptions during maintenance and upgrades. Its three-pole design provides balanced protection for three-phase circuits, safeguarding motors, compressors, and controlled loads from overcurrent or short-circuit events. Built to withstand routine mission-critical use, it helps maintain reliable electrical protection across industrial and commercial applications.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit older equipment with dependable 3-phase protection up to 100 A\u003c\/li\u003e \u003cli\u003eReplacement for worn or mismatched breakers in commercial\/industrial panels\u003c\/li\u003e \u003cli\u003eField upgrades for new 3-phase loads in 600 V systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility \u0026amp; installation notes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Confirm fit and ratings before ordering. The FI361001021 part number is the best reference for compatibility to ensure a seamless match with your panel family and bus configuration.\u003c\/p\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtects 3-phase circuits from overload and short circuits, helping prevent equipment damage\u003c\/li\u003e \u003cli\u003eMinimizes downtime with a straightforward, plug-in replacement process\u003c\/li\u003e \u003cli\u003eStreamlines inventory and maintenance planning by using a precise, recognized reference part\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho this is ideal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical maintenance technicians working on Square D panels\u003c\/li\u003e \u003cli\u003eFacilities engineers overseeing retrofit projects and panel upgrades\u003c\/li\u003e \u003cli\u003eManufacturing and industrial sites needing reliable 3-phase protection for motors and drives\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the FI361001021 when your project requires a precise, drop-in 100 A, 3-Pole, 600 V plug-in circuit breaker that aligns with Square D panel standards and supports efficient, durable protection across demanding electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427223163042,"sku":"FI361001021","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\/square-d-fi361001021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}