{"product_id":"square-d-qda221251-125a-2-pole-plug-in-circuit-breaker","title":"Square D QDA221251 - 125 A, 2-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QDA221251 is a 125 A, 2-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for fast installation and reliable performance, this breaker keeps electrical systems safe while minimizing downtime during service or upgrades.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quick installation and effortless replacement, reducing panel downtime and simplifying maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection for both overloads and short circuits, minimizing nuisance trips and ensuring consistent performance across varying loads and temperatures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case design\u003c\/strong\u003e delivers durable, reliable protection with solid electrical isolation in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e is designed to work seamlessly with matching Square D load centers and panelboards, helping you maintain a cohesive and safe electrical system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication versatility\u003c\/strong\u003e tailored for branch circuit protection in residential, commercial, and light industrial settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal uses and practical scenarios\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrade or replace a failed or aging breaker in existing panelboards or load centers without lengthy downtime.\u003c\/li\u003e \u003cli\u003eProtect large branch circuits and feeders in residential subpanels or small commercial panels that require robust 125 A protection.\u003c\/li\u003e \u003cli\u003eUse in new installations where a reliable, plug-in solution speeds up wiring and commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat it protects and how it helps\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eProvides \u003cstrong\u003ebranch circuit overcurrent protection\u003c\/strong\u003e so individual circuits stay within safe operating limits.\u003c\/li\u003e \u003cli\u003ePosts \u003cstrong\u003eshort-circuit protection\u003c\/strong\u003e to prevent damage to wiring, devices, and equipment from high-energy faults.\u003c\/li\u003e \u003cli\u003eHelps maintain system reliability in environments spanning from homes to light commercial spaces, where fast serviceability and dependable protection matter most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QDA221251\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 \u003ch2\u003eSmart buying tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eConfirm \u003cstrong\u003epanel compatibility\u003c\/strong\u003e with your OEM load centers and panelboards to ensure a seamless fit and reliable operation.\u003c\/li\u003e \u003cli\u003eKeep a spare plug-in breaker on hand for rapid replacement and reduced downtime during service windows.\u003c\/li\u003e \u003cli\u003eConsider how this 125 A, 2-pole unit fits your system’s load profile—ideal for high-demand branches while maintaining straightforward maintenance and upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355375030434,"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_28eabb26-230c-4e59-b9b0-0f23cc8e12fc.png?v=1764691623","url":"https:\/\/www.ampstate.com\/products\/square-d-qda221251-125a-2-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}