{"product_id":"square-d-fi360451021-circuit-breaker","title":"Square D | FI360451021 | Circuit Breaker | 100A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FI360451021 Circuit Breaker—a precise, reliable safeguard for three-phase electrical systems. With a 100-amp rating and a 3-pole design, this 600V breaker is built for demanding industrial and commercial environments where dependable short-circuit protection matters most. It’s the trusted choice for maintenance, retrofit, and replacement projects that require a like-for-like, high-performance component.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this FI360451021 breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact electrical fit for 3-phase, 100A service\u003c\/strong\u003e—designed to protect feeders and downstream equipment in motor control centers, panelboards, and distribution panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e supports balanced three-phase loads common in industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e provides the surge and fault protection needed for higher-voltage applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand reliability\u003c\/strong\u003e—Square D components are engineered to harmonize with existing Square D and Schneider Electric systems, helping ensure consistent performance and smoother panel integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest reference for compatibility\u003c\/strong\u003e—the part number FI360451021 is the most reliable way to confirm fit with your panel or switchgear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service work on commercial or industrial panels where a like-for-like replacement is required.\u003c\/li\u003e \u003cli\u003eRetrofit projects upgrading outdated breakers to modern, standardized Square D components.\u003c\/li\u003e \u003cli\u003eNew installations in 3-phase, 600V systems needing robust 100A protection for critical motors and feeders.\u003c\/li\u003e \u003cli\u003ePanel upgrades in facilities seeking consistent, predictable trip characteristics and easier asset management.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical guidance for ordering\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, confirm fit and ratings with your panel labeling and electrical schematics. The FI360451021 part number serves as the best reference for compatibility, helping you avoid mismatches and ensure a smooth installation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 100A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e \u003cli\u003ePart Number: FI360451021\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426373161122,"sku":"FI360451021","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fi360451021-circuit-breaker-100a-3-pole-600v-102.webp?v=1789565675","url":"https:\/\/www.ampstate.com\/products\/square-d-fi360451021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}