{"product_id":"square-d-qob150-50a-120v-1-pole-bolt-on-circuit-breaker","title":"Square D QOB150 - 50 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QOB150 — a 50-amp, 120-volt, 1-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built for residential, commercial, and light industrial applications, it delivers reliable overcurrent and short-circuit protection where it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection, helping maintain a stable electrical path even in environments with movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by combining a thermal overload element with a magnetic short-circuit trip—fast response to faults without nuisance tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e works with matching Square D load centers and panelboards, ensuring seamless integration with your existing infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e ideal for residential panels, commercial distribution, and light industrial circuits that require solid, local overcurrent protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\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 QOB150\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 50A\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 Bolt-on\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\u003eWhy choose the QOB150 for your panel project? Its bolt-on design minimizes the risk of loose connections in high-vibration environments, while the thermal-magnetic trip unit provides predictable, code-compliant protection against overloads and short circuits. The 1-pole configuration is ideal for single-phase branch circuits, making it a practical upgrade or replacement in both new installations and service panel maintenance.\u003c\/p\u003e \u003cp\u003eUse cases include upgrading aging panels in homes, equipping commercial distribution boards for reliable protection of lighting and receptacle circuits, and integrating into light industrial panels where durable, long-lasting protection is essential. When selecting a breaker for your Square D system, the QOB150 offers a precise, compatible option that aligns with your existing load centers and panelboards, ensuring consistent performance and straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355408814242,"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_ba9f07eb-7865-4ea3-bb3b-48a1a7455124.png?v=1764691914","url":"https:\/\/www.ampstate.com\/products\/square-d-qob150-50a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}