{"product_id":"siemens-qj3b080-circuit-breaker","title":"Siemens | QJ3B080 | Circuit Breaker | 80A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens QJ3B080 is a rugged 3-pole circuit breaker rated at \u003cstrong\u003e80A\u003c\/strong\u003e and designed for \u003cstrong\u003e240V\u003c\/strong\u003e applications. Built to align with the original Siemens panel architecture, this unit provides dependable protection for three-phase systems, helping prevent damage from overloads and short circuits while keeping downtime to a minimum during maintenance or upgrades.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 80A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QJ3B080\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat makes this breaker a precise fit? The QJ3B080 is part of Siemens’ QJ series, crafted to slide into compatible panels and bus structures without modification. This means quicker replacements when a 3-pole, 240V protection device is required—whether you’re performing a routine retrofit, swapping a failed unit, or completing a panel upgrade. The \u003cstrong\u003epart number QJ3B080\u003c\/strong\u003e is the most reliable reference for compatibility checks, so matching it to your existing setup minimizes guesswork and ensures correct interrupting capacity.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a worn-out 3-pole, 240V Siemens breaker in commercial or industrial panels\u003c\/li\u003e \u003cli\u003eRetrofits where a 3-phase 240V circuit needs dependable protection with a clear upgrade path\u003c\/li\u003e \u003cli\u003eMaintenance scenarios where downtime must be minimized and compatibility is critical\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cem\u003econfirm fit and ratings before ordering\u003c\/em\u003e to ensure seamless compatibility with your panel model and electrical load requirements.\u003c\/li\u003e \u003cli\u003eFollow proper lockout\/tagout procedures and use the correct torque specifications during installation. If in doubt, consult a licensed electrician.\u003c\/li\u003e \u003cli\u003ePlan for future-proofing: verify whether your panel supports three-phase 240V configurations and that the 80A rating aligns with your load calculations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens QJ3B080 means opting for a trusted, factory-backed solution that emphasizes reliability and precise compatibility. It’s the practical, knowledge-driven choice for electricians and engineers who value accurate specifications, straightforward replacements, and a clear path to safe, uninterrupted power distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427420393634,"sku":"QJ3B080","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\/siemens-qj3b080-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}