{"product_id":"siemens-qf120a-20a-120v-1-pole-plug-in-circuit-breaker","title":"Siemens QF120 A - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens QF120A 20A 120V 1-Pole Plug-In Molded Case Circuit Breaker — a purpose-built solution for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. This compact, single-pole unit is engineered for fast plug-in installation, making upgrades or replacements quick and straightforward without sacrificing safety or performance.\u003c\/p\u003e \u003cp\u003eDesigned for real-world use, the QF120A combines a thermal-magnetic trip unit with a plug-in mounting style to deliver stable, repeatable protection. The thermal-magnetic mechanism responds swiftly to short-circuit events while keeping nuisance trips under control during normal overload conditions, helping protect wiring and devices from damage.\u003c\/p\u003e \u003ch3\u003eKey benefits and why it matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables rapid installation and easy replacement in Siemens panelboards and load centers, minimizing service downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e provides reliable protection that adapts to varying fault conditions, safeguarding circuits without unnecessary tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 20A, 120V\u003c\/strong\u003e configuration is ideal for standard residential and light commercial branch circuits, such as outlets, lighting, and small equipment runs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in mounting\u003c\/strong\u003e ensures seamless compatibility with matching OEM Siemens panels for a clean, secure fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing an aging breaker in a home main or sub-panel to restore reliable circuit protection without rewiring.\u003c\/li\u003e \u003cli\u003eAdding a dedicated 20A circuit for kitchen outlets, home office equipment, or transient loads in small commercial spaces.\u003c\/li\u003e \u003cli\u003eUpgrading panel infrastructure where quick, tool-free plug-in installation reduces downtime during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QF120A\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:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\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\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor trusted, OEM-aligned protection in Siemens panelboards and load centers, the QF120A delivers consistent performance across a range of settings. Stocked for quick ordering and straightforward installation, this 20A, 120V, 1-pole plug-in breaker helps you maintain safe, compliant electrical distribution with minimal downtime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355159187618,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qf120-a-20-120-v-1-pole-plug-in-circuit-breaker-ampstate-259.webp?v=1788736518","url":"https:\/\/www.ampstate.com\/products\/siemens-qf120a-20a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}