{"product_id":"square-d-qo3100-100a-240v-3-pole-plug-in-circuit-breaker","title":"Square D QO3100 - 100 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QO3100\u003c\/strong\u003e is a 100 A, 240 V, 3-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 swaps and consistent protection, it’s a trusted choice for maintaining power reliability across residential, commercial, and light industrial environments.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quicker installation and straightforward replacement, minimizing downtime during panel service or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection characteristics across a wide range of fault conditions, helping prevent nuisance trips while still catching dangerous faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is built to fit matching Square D load centers and panelboards, ensuring a clean, reliable integration without compatibility surprises.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for \u003cem\u003eresidential, commercial, and light industrial\u003c\/em\u003e electrical systems, making it a practical choice for mixed-use facilities or retrofit projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshots\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 QO3100\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 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\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 \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or repairing residential service panels where a reliable, quick-install breaker is required.\u003c\/li\u003e \u003cli\u003ePanelboard replacements in small commercial spaces and light industrial facilities needing robust 3-pole protection.\u003c\/li\u003e \u003cli\u003eRetrofits in existing Square D QO-series installations where seamless compatibility matters most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm compatibility with your panelboard or load center’s OEM specifications to ensure a snug, dependable fit.\u003c\/li\u003e \u003cli\u003eTurn off power, follow all safety protocols, and have a qualified electrician perform the installation to maintain warranty and safety compliance.\u003c\/li\u003e \u003cli\u003eUse as part of a balanced protection strategy for 3-phase, 240 V circuits where heavy loads or equipment demand reliable fault interruption.\u003c\/li\u003e \u003cli\u003eKeep track of part numbers and replacement cycles as part of routine panel maintenance to minimize unexpected outages.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D QO3100, AmpState provides a plug-in solution that blends rapid serviceability with precise thermal-magnetic protection. This breaker is built to protect your most critical circuits while simplifying maintenance, making it a practical, durable choice for professionals managing diverse electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355404095650,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-qo3100-100-a-240-v-3-pole-plug-in-circuit-breaker-ampstate-735.webp?v=1788754911","url":"https:\/\/www.ampstate.com\/products\/square-d-qo3100-100a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}