{"product_id":"square-d-fal321001121","title":"Square D FAL321001121 100A 3-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D FAL321001121 100A 3-Pole 240 V Circuit Breaker — a dependable, three-phase protection solution engineered for demanding electrical systems. Designed to fit compatible Square D panels, this unit delivers reliable overcurrent protection across all three conductors, helping keep equipment and people safe in commercial, industrial, and high-demand environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e FAL321001121\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy a 3-pole, 240 V design matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn three-phase electrical distributions, a 3-pole circuit breaker protects all live conductors simultaneously. The FAL321001121’s integrated triple-pole design provides synchronized disconnection on fault conditions, reducing electrical stress on wiring and components and helping prevent cascading trips across phases. This makes it an ideal choice for protecting feeders and motors in 3-phase networks where reliable, coordinated shutdown is essential.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtection for 3-phase motors in pumps, conveyors, compressors, and CNC equipment\u003c\/li\u003e \u003cli\u003eProtection of distribution feeders in commercial and light industrial panels\u003c\/li\u003e \u003cli\u003eReplacement or refurbishment in existing Square D installations to maintain panel compatibility and electrical performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets it apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBuilt to slot into compatible Square D panels with a robust, common-trip feel across all three poles for consistent protection\u003c\/li\u003e \u003cli\u003eCompact, integrated design that simplifies installation and reduces wiring complexity in multi-pole circuits\u003c\/li\u003e \u003cli\u003ePart of a trusted line known for durable performance in everyday electrical distribution tasks\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for a smooth setup\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm panel compatibility with the FAL321001121 before replacement or installation\u003c\/li\u003e \u003cli\u003eEnsure the circuit conductor gauge and protection level align with the 100 A rating to avoid nuisance trips\u003c\/li\u003e \u003cli\u003eAlways power down the service and follow electrical safety protocols or consult a licensed electrician for installation\u003c\/li\u003e \u003cli\u003eUse the part number FAL321001121 when ordering to ensure you receive the exact Square D unit intended for your panel\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you're upgrading an aging panel, repairing a distribution feed, or outfitting a new commercial installation, the Square D FAL321001121 delivers clear, dependable protection for 3-phase circuits at 240 V. Trust this 100 A, 3-pole breaker to maintain safe, reliable operation of your critical equipment while simplifying panel maintenance and replacements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423580934306,"sku":"FAL321001121","price":4229.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-fal321001121","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}