{"product_id":"square-d-qda221252-125a-2-pole-plug-in-circuit-breaker","title":"Square D QDA221252 - 125 A, 2-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QDA221252, a 125 A, 2-pole plug-in molded case circuit breaker built to shield your panelboard or load center from overcurrent and short circuits. With a fast plug-in connection and a reliable thermal-magnetic trip system, this breaker keeps critical circuits protected while minimizing installation downtime.\u003c\/p\u003e \u003cp\u003eKey benefits that translate to real-world performance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRapid plug-in installation\u003c\/strong\u003e — a secure plug-in connection designed for quick replacement and minimal service interruptions, so you can complete panel upgrades or maintenance faster.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — combines time-delayed thermal protection with instantaneous magnetic response, delivering stable, repeatable protection across a range of fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e — precisely engineered to fit matching Square D OEM load centers and panelboards, preserving proper fit, listing, and overall system reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole, 125 A design\u003c\/strong\u003e — ideal for 240 V circuits and main\/branch protection in residential, commercial, and light industrial applications, offering straightforward upgrade paths for demanding loads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhere and how you’ll use it\u003c\/h3\u003e \u003cp\u003eDesigned for dependable branch circuit protection, the QDA221252 is well-suited for:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eResidential service panels and subpanels where a reliable 125 A main\/branch protection is required\u003c\/li\u003e \u003cli\u003eCommercial panelboards and light industrial load centers needing robust overcurrent and short-circuit safeguarding\u003c\/li\u003e \u003cli\u003eRetrofit installations where quick replacement minimizes downtime and ensures compatibility with existing Square D equipment\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets this breaker apart\u003c\/h3\u003e \u003cp\u003eWhile many breakers offer basic protection, the QDA221252 stands out through its combination of plug-in ease, precise thermal-magnetic protection, and guaranteed compatibility with Square D panel systems. This means fewer mismatches, faster service calls, and consistent performance across installations that demand reliability in demanding environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: QDA221252\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating\u003c\/strong\u003e: 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles\u003c\/strong\u003e: 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style\u003c\/strong\u003e: Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading an aging panel, consolidating protection for critical loads, or outfitting a new installation, the Square D QDA221252 delivers dependable performance, quick installation, and clean compatibility with your existing Square D infrastructure. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355375063202,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_61895654-0211-4dce-9dcc-0c180c15391a.png?v=1764691624","url":"https:\/\/www.ampstate.com\/products\/square-d-qda221252-125a-2-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}