{"product_id":"siemens-q150h-50a-120v-1-pole-plug-in-circuit-breaker","title":"Siemens Q150H - 50 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Q150H 50A, 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 loadcenters. This breaker is designed to help you protect wiring, devices, and critical loads with precision and speed.\u003c\/p\u003e \u003ch3\u003eWhy the Siemens Q150H stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and seamless replacement in Siemens-compatible panels, reducing downtime on service calls or retrofit projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element handles gradual overloads while the magnetic element provides a swift response to short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 50A at 120V\u003c\/strong\u003e configuration tailored for single-line branch circuits common in homes, offices, and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panelboard compatibility\u003c\/strong\u003e is built to work with matching Siemens load centers and panelboards, ensuring clean integration and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile deployment\u003c\/strong\u003e suited for residential, commercial, and light industrial applications where dependable overcurrent protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eThe Q150H provides a robust first line of defense against electrical faults. By interrupting current quickly during short circuits and preventing nuisance trips from minor overloads, it helps protect wiring insulation, outlets, appliances, and sensitive equipment. Its molded case design adds durability in environments subject to vibration or temperature changes, delivering consistent protection over time.\u003c\/p\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 Q150H\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 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 \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse the Siemens Q150H for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential panel upgrades or expansions for lighting, outlets, and major appliances.\u003c\/li\u003e \u003cli\u003eCommercial spaces needing reliable protection for single-phase distribution and quick breaker swaps.\u003c\/li\u003e \u003cli\u003eLight industrial installations where steady protection and fast replacement minimize downtime.\u003c\/li\u003e \u003cli\u003eReplacing aging breakers in compatible OEM load centers to maintain panel performance and safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm your panelboard is compatible with Siemens plug-in breakers and that the Q150H matches the OEM model specified for your load center.\u003c\/li\u003e \u003cli\u003ePower off the main disconnect before removing the old breaker and installing the new one to ensure safety and proper seating.\u003c\/li\u003e \u003cli\u003eFollow Siemens installation guidelines for seating and any torque recommendations to preserve reliable trip performance.\u003c\/li\u003e \u003cli\u003eKeep a small inventory of spare Q150H breakers for critical circuits to facilitate rapid restoration when maintenance is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355153977506,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-q150h-50-a-120-v-1-pole-plug-in-circuit-breaker-ampstate-547.webp?v=1788735573","url":"https:\/\/www.ampstate.com\/products\/siemens-q150h-50a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}