{"product_id":"square-d-a1b320-circuit-breaker","title":"Square D | A1B320 | Circuit Breaker | 3-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D A1B320 Circuit Breaker is a purpose-built 3-Pole, Bolt-On solution designed for reliable 3-phase protection in commercial and industrial electrical systems. It’s ideal for maintenance, retrofit, and replacement projects where exact specifications and dependable performance matter.\u003c\/p\u003e \u003cp\u003eWhy choose this 3-Pole bolt-on breaker? It delivers secure, durable mounting in compatible Square D panels, helping you maintain uninterrupted power distribution in demanding environments. The bolt-on design provides a robust connection that stays put through routine service and equipment cycling, reducing the risk of nuisance trips or loose connections.\u003c\/p\u003e \u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole (3-Phase) configuration\u003c\/strong\u003e for balanced protection across three live conductors, making it suitable for standard 3-phase electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e for a sturdy, permanent installation in compatible panels—designed to stand up to vibration and frequent servicing common in industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference A1B320\u003c\/strong\u003e provides a precise compatibility anchor, helping you verify the correct replacement or retrofit part with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho It's For\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors performing panel retrofits or replacements in commercial facilities\u003c\/li\u003e \u003cli\u003eMaintenance teams upgrading or updating 3-phase distribution systems\u003c\/li\u003e \u003cli\u003eFacilities engineers seeking reliable, predictable protection aligned with Square D specifications\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility \u0026amp; Installation Tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless replacement. The A1B320 part number is the primary reference for compatibility, so cross-check it with your panel’s catalog and current 3-pole bolt-on requirements. This breaker is intended for use in systems and panels that specify a 3-Pole bolt-on configuration compatible with Square D devices.\u003c\/p\u003e \u003ch3\u003eUse Cases \u0026amp; Scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or aging 3-pole breaker in a service panel to restore reliable 3-phase protection.\u003c\/li\u003e \u003cli\u003eRetrofit projects where a 3-pole bolt-on breaker aligns with existing Square D infrastructure.\u003c\/li\u003e \u003cli\u003eMaintenance cycles that require a durable, secure mounting solution for ongoing operational reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D A1B320, you’re choosing a recognized standard for 3-phase protection, built to align with established Square D compatibility. Its bolt-on design and clear part-number reference help streamline procurement and installation, making it a practical choice for professionals prioritizing safety, reliability, and precise compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425523454114,"sku":"A1B320","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-a1b320-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}