{"product_id":"square-d-qda221254-125a-240v-2-pole-plug-in-circuit-breaker","title":"Square D QDA221254 - 125 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QDA221254, a 125A, 240V, 2-pole plug-in molded case circuit breaker built to shield your electrical system from overcurrent and short-circuit events. Designed for dependable performance in panelboards and load centers, this breaker enables quick replacement and reliable protection where you need it most.\u003c\/p\u003e \u003cp\u003eKey features:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFast plug-in connection enables rapid installation or replacement, minimizing downtime during service work or upgrades.\u003c\/li\u003e \u003cli\u003eThermal-magnetic trip unit delivers stable, repeatable protection against nuisance trips while reacting quickly to short circuits.\u003c\/li\u003e \u003cli\u003eDesigned to be compatible with matching OEM load centers and panelboards, ensuring a clean, safe fit with your existing infrastructure.\u003c\/li\u003e \u003cli\u003eVersatile for residential, commercial, and light industrial applications, providing a scalable protection solution across environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart number: QDA221254\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 125A\u003c\/li\u003e \u003cli\u003eVoltage rating: 240V\u003c\/li\u003e \u003cli\u003eNumber of poles: 2\u003c\/li\u003e \u003cli\u003eMounting style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic replacements, the QDA221254 is designed to integrate with Square D OEM panelboards, delivering consistent trip performance and a secure plug-in connection that reduces wiring errors and installation time. The 125A rating handles demanding branch circuits while staying within standard residential and commercial service profiles.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading an aging panel or replacing a failing two-pole breaker in 240V circuits such as heating, cooling, or large-appliance circuits.\u003c\/li\u003e \u003cli\u003eNew installations in panelboards or load centers that require reliable 2-pole protection and quick plug-in mounting.\u003c\/li\u003e \u003cli\u003eRepairs in residential, commercial, or light industrial settings where minimizing downtime is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips and best practices\u003c\/h3\u003e\n\u003cp\u003eTo maximize performance and safety, ensure the panelboard is compatible with plug-in Square D breakers in the QDA line, confirm the bus stabs align, and always shut off main power before replacement. Insert the breaker into the designated slot until it seats with a firm click, then restore power and test the circuit with an appropriate procedure.\u003c\/p\u003e \u003cp\u003eWith Square D QDA221254, you gain a dependable 125A, 240V two-pole solution that combines fast installation, precise thermal-magnetic protection, and broad compatibility across residential, commercial, and light industrial settings. If you’re upgrading a panel or replacing a failed breaker, this plug-in molded case breaker delivers consistent, reliable performance when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355375128738,"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_06e2d3a1-fefc-4f0a-be54-0611bb73ab92.png?v=1764691627","url":"https:\/\/www.ampstate.com\/products\/square-d-qda221254-125a-240v-2-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}