{"product_id":"square-d-qob320swn-circuit-breaker","title":"Square D | QOB320SWN | Circuit Breaker | 20A | 3-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cb\u003eQOB320SWN\u003c\/b\u003e circuit breaker—your precise, reliable protection for 3-phase electrical systems. Engineered as a \u003cb\u003e20A\u003c\/b\u003e, \u003cb\u003e3-Pole\u003c\/b\u003e bolt-on unit, this breaker is built to meet the exacting standards of Square D panels and distribution boards, making it a dependable choice for maintenance, retrofit, and replacement projects where exact specs matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting:\u003c\/b\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart reference:\u003c\/b\u003e QOB320SWN (the best compatibility identifier)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this specific breaker stands out:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eExact spec alignment\u003c\/b\u003e—Designed to slot into compatible Square D panels without modification, preserving panel integrity and safety clearances.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e3-Pole protection\u003c\/b\u003e—Ideal for 3-phase circuits and motor-control applications where balanced protection across all phases is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eBolt-On reliability\u003c\/b\u003e—Solid, vibration-resistant mounting that resists loosening in industrial environments and panel enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eClear fit guidance\u003c\/b\u003e—Part number QOB320SWN serves as the most reliable reference for compatibility, helping you avoid mismatches during ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMaintenance or retrofits in existing Square D panels that require exact 3-pole, 20A protection.\u003c\/li\u003e \u003cli\u003eReplacement of aging breakers in 3-phase motor feeds, conveyors, or process lines where consistent trip characteristics are essential.\u003c\/li\u003e \u003cli\u003ePanel upgrades where a compact, bolt-on solution minimizes downtime and wiring modifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical notes to ensure a smooth installation:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eConfirm fit and ratings\u003c\/b\u003e before ordering to guarantee compatibility with your panel model and service requirements.\u003c\/li\u003e \u003cli\u003eFollow standard electrical best practices for safe installation, including de-energizing the panel and securing the breaker with the appropriate torque guidelines.\u003c\/li\u003e \u003cli\u003eKeep the original part reference handy—QOB320SWN is the most reliable indicator of compatibility for this unit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you need a dependable, precisely specified 3-pole breaker for 20A circuits, the Square D \u003cb\u003eQOB320SWN\u003c\/b\u003e delivers predictable protection, solid mounting, and seamless compatibility with established Square D panels. Add it to your order to ensure you have the exact replacement or retrofit part you require for durable, consistent electrical performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426717618338,"sku":"QOB320SWN","price":666.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/square-d-qob320swn-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}