{"product_id":"square-d-999270-circuit-breaker","title":"Square D | 999270 | Circuit Breaker | 3-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D 999270 3-Pole Bolt-On Circuit Breaker\u003c\/strong\u003e is a purpose-built protection device designed for secure, reliable three‑phase service in maintenance, retrofit, and replacement projects. This bolt-on model delivers robust electrical protection with a mounting style that stays firmly in place under demanding conditions.\u003c\/p\u003e \u003cp\u003eWhat makes this breaker stand out:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole bolt-on design\u003c\/strong\u003e ensures a solid mechanical connection to compatible panels, reducing vibration and connection drift during operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAuthentic Square D part\u003c\/strong\u003e with part number 999270 as the best reference for compatibility, aiding you in a precise match to your panel and rating.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for maintenance, retrofit, and replacement\u003c\/strong\u003e tasks, so you can upgrade or restore protection in existing electrical systems without changing the enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 3-pole breaker in a commercial or industrial panel where bolt-on installation is required.\u003c\/li\u003e \u003cli\u003eRetrofit projects that need a dependable, field-serviceable protection device for three-phase circuits.\u003c\/li\u003e \u003cli\u003eMaintenance shutdowns where a reliable, consistent trip response minimizes downtime and protects motors and feeders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSmart buying guidance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm fit and ratings before ordering. The part number 999270 is your strongest compatibility reference—match it to your panel’s model and rating.\u003c\/li\u003e \u003cli\u003eCheck your panel’s labeling to ensure it accepts bolt-on 3-pole breakers and to determine the correct current rating for a like-for-like replacement.\u003c\/li\u003e \u003cli\u003eWhen in doubt, keep the panel model available during purchase comparisons to avoid mismatches and service delays.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith Square D, you’re choosing proven reliability and consistent protection for your three-phase circuits. The 999270 bolt-on 3-pole breaker helps you maintain safe, continuous operation with an installation process that technicians trust.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427302330530,"sku":"999270","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-999270-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}