{"product_id":"square-d-qob120vh1021-20a-1-pole-bolt-on-circuit-breaker","title":"Square D QOB120VH1021 - 20 A, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eWhen dependable branch circuit protection matters most, the Square D QOB120VH1021 stands up to the task. This 20A, 1-pole bolt-on molded case circuit breaker is engineered for durability and precise protection in panelboards and load centers, delivering consistent performance across residential, commercial, and light industrial settings.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhat sets it apart\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e creates a rigid, vibration-resistant bus connection for reliable long-term operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection against both overloads and short circuits, helping prevent nuisance trips while safeguarding wiring.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless integration with matching Square D load centers and panelboards, reducing installation friction and compatibility concerns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple environments\u003c\/strong\u003e—well suited for residential circuits, commercial feeders, and light industrial applications where dependable protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QOB120VH1021\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 20A\u003c\/li\u003e \u003cli\u003eNumber of Poles: 1\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eUse cases and practical benefits\u003c\/h2\u003e\n\u003cp\u003eIdeal for replacing aging or undersized breakers in existing panelboards where a secure, vibration-resistant connection is critical—think finished basements, busy mechanical rooms, or commercial spaces with frequent equipment cycling. The bolt-on design minimizes movement under load, helping maintain a dependable trips-to-protect pairing between the breaker and the bus bar. Its 1-pole configuration makes it a straightforward solution for single-phase branch circuits, delivering targeted protection without unnecessary complexity.\u003c\/p\u003e \u003ch2\u003eWho should consider this breaker\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors upgrading or repairing panels in homes, offices, and light commercial facilities\u003c\/li\u003e \u003cli\u003eFacility managers prioritizing reliable circuit protection and ease of maintenance\u003c\/li\u003e \u003cli\u003eDIY enthusiasts replacing aging breakers in compatible Square D panelboards (with proper fit and safety precautions)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D QOB120VH1021 for a precise, rugged, and compatible solution that aligns with your panelboard infrastructure while delivering dependable 20A protection for your essential circuits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355407077538,"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_650b09a4-6e96-4059-af4a-36e5e0fb1f28.png?v=1764691903","url":"https:\/\/www.ampstate.com\/products\/square-d-qob120vh1021-20a-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}