{"product_id":"square-d-qo120hm-20a-120v-1-pole-plug-in-circuit-breaker","title":"Square D QO120HM - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QO120HM is a 20A, 120V, 1-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built to safeguard your electrical distribution from overloads and short circuits, it’s a practical, durable choice for everyday circuits in homes and light commercial spaces.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and straightforward replacements, reducing downtime during panel maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e ensures stable, repeatable protection performance against overloads and short circuits, helping prevent nuisance trips and protecting connected devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 20A at 120V\u003c\/strong\u003e is ideal for single-phase residential circuits such as lighting, outlets, and small-appliance pathways.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in mounting\u003c\/strong\u003e designed to fit compatible Square D QO style panelboards and load centers, enabling reliable seating and solid electrical contact.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e works with matching Square D load centers and panelboards to maintain system integrity and code compliance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable overcurrent protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the QO120HM? It’s more than a breaker—it's a precise component that supports safe, efficient electrical distribution. With a dedicated plug-in design, you can perform quick swaps without rewiring, while the thermal-magnetic mechanism provides deterministic protection that helps protect wiring, outlets, and connected equipment.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e include upgrading or replacing a worn-out breaker in standard 120V panels, configuring branch circuits for living spaces, small offices, or light manufacturing areas, and maintaining consistent protection for circuits that run lighting and general receptacles.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QO120HM\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 20A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 120V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 1\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 \u003cp\u003eDelivered by AmpState, the QO120HM is a dependable choice when you need a standard, compatible solution that fits seamlessly into existing Square D panel systems. If you’re upgrading a panel or replacing a failed breaker, this 1-pole 20A 120V unit offers a straightforward path to restoring safe, continuous power to individual circuits with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355396984994,"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-qo120hm-20-a-120-v-1-pole-plug-in-circuit-breaker-ampstate-404.webp?v=1788754240","url":"https:\/\/www.ampstate.com\/products\/square-d-qo120hm-20a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}