{"product_id":"siemens-3ta1qr300-300a-1p-240v-circuit-breaker","title":"Siemens 3TA1QR300 300A 1P 240V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens 3TA1QR300\u003c\/strong\u003e is a rugged, single-pole 300 A circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. Built for everyday electrical work, it delivers dependable protection for 240 V circuits while helping maintenance teams keep critical infrastructure running smoothly.\u003c\/p\u003e \u003cp\u003eThis breaker is a smart choice when a direct part-number match matters. The 3TA1QR300 is engineered for straightforward substitution in existing Siemens installations, reducing downtime and simplifying inventory management for panel builders and service teams alike.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole design\u003c\/strong\u003e ideal for protecting a single 240 V circuit\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e300 A\u003c\/strong\u003e rating suited for high-current distribution in panels and feeders\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e streamlines stocking, ordering, and field upgrades\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e—panelboards, load centers, and broad electrical distribution systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand trusted by professionals\u003c\/strong\u003e—Siemens quality you can rely on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpState availability\u003c\/strong\u003e to simplify procurement and project planning\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance teams responsible for keeping critical electrical systems up and running\u003c\/li\u003e \u003cli\u003ePanel builders who need precise, compatible replacements\u003c\/li\u003e \u003cli\u003eFacilities managers stocking spare parts for quick response to outages\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases to consider:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing aging or failed breakers in 240 V distribution panels\u003c\/li\u003e \u003cli\u003eReinforcing spare inventory for high-demand panelboard configurations\u003c\/li\u003e \u003cli\u003eEnsuring reliable protection for essential circuits in commercial or industrial facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy it matters\u003c\/strong\u003e — a matched Siemens breaker like the 3TA1QR300 minimizes compatibility risk, accelerates installation, and maintains consistent protection across your electrical distribution system. By sticking with a familiar, reputable part number, you reduce troubleshooting time and improve first-time fit accuracy.\u003c\/p\u003e \u003cp\u003eIf you’re unsure about compatibility or need help confirming a fit, \u003cstrong\u003emessage us\u003c\/strong\u003e and we’ll assist with part-number matching and configuration guidance to keep your project on track.\u003c\/p\u003e \u003cp\u003eAdd the Siemens 3TA1QR300 to your panel protection lineup and rely on a trusted solution that aligns with your 240 V distribution needs and inventory strategy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410839425186,"sku":"3TA1QR300","price":106.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-3ta1qr300-300a-1p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}