{"product_id":"square-d-qob2901021-90a-2-pole-bolt-on-circuit-breaker","title":"Square D QOB2901021 - 90 A, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D QOB2901021 is a \u003cstrong\u003e90A\u003c\/strong\u003e, \u003cstrong\u003e2-pole\u003c\/strong\u003e bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built by Square D for tough service, this unit offers a rigid, vibration-resistant connection and a precise thermal-magnetic protection profile that stays consistent across loads and temperatures.\u003c\/p\u003e \u003ch3\u003eWhy this breaker works for your panel\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, helping maintain reliable electrical contact even in spaces with movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection against overcurrent and short circuits, reducing nuisance trips and safeguarding connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e90A, 2-pole design\u003c\/strong\u003e is ideal for protecting heavier branch circuits or as a feeder protection solution in 120\/240V systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with matching Square D load centers and panelboards, ensuring a clean fit and reliable performance without compatibility surprises.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded-case construction\u003c\/strong\u003e suited for residential, commercial, and light industrial applications where reliability matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\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 QOB2901021\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 90 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\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\u003eIdeal for electricians, facility managers, and homeowners upgrading service panels or adding subpanels in garages, workshops, or light commercial spaces, the QOB2901021 fits seamlessly into compatible Square D panelboards, delivering dependable protection with straightforward installation.\u003c\/p\u003e \u003cp\u003ePro tip: Pair this breaker with matching Square D components to ensure optimal thermal performance and consistent trip characteristics across your panel. Always confirm panel compatibility with the QOB-series breakers to maintain safe, compliant operation.\u003c\/p\u003e \u003cp\u003eReady to secure your circuits with trusted Square D protection? Add the QOB2901021 to your cart and experience dependable, predictable performance in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355415892130,"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_b9192304-3325-4337-9be2-44aee6b6666a.png?v=1764691965","url":"https:\/\/www.ampstate.com\/products\/square-d-qob2901021-90a-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}