{"product_id":"square-d-qo1520-20a-120v-1-pole-plug-in-circuit-breaker","title":"Square D QO1520 - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QO1520\u003c\/strong\u003e is a dependable, plug-in molded case circuit breaker designed for robust branch circuit overcurrent and short-circuit protection in panelboards and load centers. At \u003cstrong\u003e20A\u003c\/strong\u003e and \u003cstrong\u003e120V\u003c\/strong\u003e, this \u003cstrong\u003e1-pole\u003c\/strong\u003e device delivers precise, repeatable protection for residential, commercial, and light industrial applications. It’s the quick-to-install solution you need when replacing or upgrading a single-pole protection circuit in a QO-compatible panel.\u003c\/p\u003e \u003ch2\u003eWhat makes the QO1520 stand out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for streamlined installation and rapid replacements, minimizing downtime on service panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines reliable thermal protection with magnetic short-circuit sensing, delivering stable, repeatable performance under varying load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures \u003cem\u003eeasy interoperability\u003c\/em\u003e with matching Square D QO load centers and panelboards, reducing compatibility concerns during upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 20A, 120V\u003c\/strong\u003e configuration precisely matched for most lighting circuits, receptacle runs, and small appliance branches in a variety of spaces.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eResidential electrical panels where quick replacement of a single protected circuit is needed due to nuisance trips or aging hardware.\u003c\/li\u003e \u003cli\u003eCommercial storefronts, offices, and light industrial environments with standard 120V circuits requiring reliable overcurrent protection.\u003c\/li\u003e \u003cli\u003ePanelboard maintenance projects where downtime must be minimized and compatibility with existing QO systems is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePerformance, safety, and durability\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ethermal-magnetic trip mechanism\u003c\/strong\u003e weaves long-term stability with rapid response to short circuits, helping protect wiring, devices, and connected loads from damage. Its molded case construction provides solid durability in everyday panel environments, while the \u003cstrong\u003eplug-in mounting\u003c\/strong\u003e design supports straightforward maintenance and quick circuit reconfiguration without specialized tools. This makes the QO1520 a practical choice for upgrades, retrofits, and routine servicing in both new construction and retrofit projects.\u003c\/p\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 QO1520\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 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips for installation and longevity\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panelboard or load center is compatible with the QO series before replacement to ensure seamless electrical integration.\u003c\/li\u003e \u003cli\u003eTurn off the main power and discharge any residual voltage in the panel before handling breakers, and follow all local electrical codes during installation.\u003c\/li\u003e \u003cli\u003eKeep a few replacement plug-in breakers on hand for routine panel maintenance, as the fast-connect design helps reduce labor time during service calls.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor dependable, code-compliant protection of 120V branch circuits, the Square D \u003cstrong\u003eQO1520\u003c\/strong\u003e delivers precise, reliable performance with a plug-in convenience that installers appreciate. It’s the right fit for upgrading panelboards and load centers where space, speed, and safety matter.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355397705890,"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-qo1520-20-a-120-v-1-pole-plug-in-circuit-breaker-ampstate-874.webp?v=1788754374","url":"https:\/\/www.ampstate.com\/products\/square-d-qo1520-20a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}