{"product_id":"qob345","title":"Square D QOB345 - 45A, 3-Pole, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QOB345 45A 3-pole circuit breaker — a dependable overcurrent protection device built to safeguard three-phase power systems in demanding environments. Crafted for use in panelboards, switchboards, and control panels, this breaker delivers consistent, reliable performance where reliability matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e45 A, three-pole design\u003c\/strong\u003e provides balanced protection for three-phase feeders, simplifying wiring and fault isolation in multi-phase installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlexible integration\u003c\/strong\u003e designed to work seamlessly in panelboards, switchboards, and control panels—ideal for industrial, commercial, and OEM applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust protection\u003c\/strong\u003e delivers dependable overcurrent protection and promotes safe operation across distribution panels and motor control centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProven reliability\u003c\/strong\u003e engineered to withstand the demands of everyday electrical environments, helping to minimize downtime and extend equipment life.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew or retrofit installations in three-phase systems needing reliable protection for motors, feeders, and three-phase loads.\u003c\/li\u003e \u003cli\u003ePanel upgrades in manufacturing facilities, processing lines, HVAC distributions, or automated equipment where a familiar, compatible protection device is essential.\u003c\/li\u003e \u003cli\u003eOEM assemblies requiring a trusted, easily integrated circuit breaker that aligns with Square D distribution components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the QOB345 in your electrical system\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart of the Square D lineage\u003c\/strong\u003e with compatibility across Square D panels and accessories, simplifying maintenance and replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase suitability\u003c\/strong\u003e specifically designed to protect multi-phase circuits without complicating installation or coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear protection outcomes\u003c\/strong\u003e by interrupting fault currents promptly, reducing the risk of equipment damage and safeguarding personnel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003cbr\u003e\nCurrent rating: 45 A • Poles: 3 • Breaker type: Circuit Breaker\u003c\/p\u003e \u003cp\u003eWhether you’re upgrading an existing distribution panel, configuring a new control panel for an automation line, or equipping a motor control center, the Square D QOB345 delivers the reliable protection your system requires. Built for durability in industrial and commercial settings, it’s a practical, trusted choice for professionals who value safety, stability, and seamless integration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default","offer_id":46390610919586,"sku":"QOB345","price":303.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_3d4f640d-c09b-4d21-a800-0b874bc1f2ad.png?v=1765377892","url":"https:\/\/www.ampstate.com\/products\/qob345","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}