{"product_id":"square-d-qda221751-175a-2-pole-plug-in-circuit-breaker","title":"Square D QDA221751 - 175 A, 2-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003ch2\u003eSquare D QDA221751: 175 A, 2-Pole Plug-In Circuit Breaker for Fast, Reliable Protection\u003c\/h2\u003e\n\u003cp\u003eThe Square D QDA221751 is a 175 A, 2-pole plug-in molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to fit seamlessly into compatible OEM assemblies, it delivers consistent protection in a range of environments from residential to light commercial and industrial settings.\u003c\/p\u003e \u003ch3\u003eKey benefits you’ll notice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quick installation and effortless replacement, minimizing downtime during upgrades or servicing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by handling both overload conditions and short circuits with predictable trip behavior.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole, 175 A design\u003c\/strong\u003e supports higher-current circuits while preserving a compact footprint suitable for standard enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in mounting\u003c\/strong\u003e simplifies maintenance and retrofits compared with bolt-on or screw-in alternatives.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e specifically crafted to work with matching Square D loadcenters and panelboards for a reliable electrical interface.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhere it shines\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting branch circuits in a variety of applications — from home subpanels and office electrical rooms to light industrial equipment. It delivers robust protection for lighting, outlets, motors, and other essential loads, preventing damage from overcurrent and short circuits while enabling straightforward service and upgrades.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart number: QDA221751\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 175 A\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\u003ePractical tips and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm panelboard compatibility with the QDA221751 before replacement to ensure a perfect fit and electrical interface.\u003c\/li\u003e \u003cli\u003eKeep plug-in terminals clean and free from corrosion; inspect for any damage and replace if needed to maintain optimal contact.\u003c\/li\u003e \u003cli\u003eWhen adding circuits, distribute load to stay within the 175 A rating and prevent nuisance trips due to overloading.\u003c\/li\u003e \u003cli\u003eIn routine maintenance, verify that the thermal-magnetic trip operates within expected tolerances to ensure consistent protection over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355375882402,"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_acbd7469-a28c-4525-868d-a0f3837ce2a4.png?v=1764691631","url":"https:\/\/www.ampstate.com\/products\/square-d-qda221751-175a-2-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}