{"product_id":"siemens-qj3b150h-circuit-breaker","title":"Siemens | QJ3B150H | Circuit Breaker | 150A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eWhen a Siemens panel needs reliable, exact-fit protection, the Siemens QJ3B150H circuit breaker delivers. This OEM replacement is built for maintenance, retrofit, and replacement projects—giving you confidence that your 3‑phase 240V system stays protected with the exact specs your installation requires.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QJ3B150H\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Siemens QJ-series panels and installations that rely on the QJ base frame\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this OEM breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact-fit protection\u003c\/strong\u003e—engineered to align with Siemens panel architecture, ensuring secure mounting, proper terminal alignment, and consistent electrical performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase, 240V performance\u003c\/strong\u003e—ideal for distributing power in commercial and light industrial environments where three-phase loads demand reliable, coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetention of panel integrity\u003c\/strong\u003e—using the same frame and trip characteristics as the original device minimizes compatibility issues and unintended tripping, promoting long-term reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM assurance\u003c\/strong\u003e—replacing with the part your system was designed around helps preserve warranty considerations and simplifies future maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and repair of existing Siemens 3‑phase panels that require a 150 A, 3‑pole 240 V protective device\u003c\/li\u003e \u003cli\u003eRetrofits or panel upgrades where current hardware must be retained for consistent electrical characteristics\u003c\/li\u003e \u003cli\u003eNew installations in facilities with Siemens QJ-series infrastructure that demand exact compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and selection\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMatch the part number\u003c\/strong\u003e—QJ3B150H is the best reference for compatibility with your Siemens equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfirm fit and ratings\u003c\/strong\u003e—verify that the breaker’s amperage, pole count, and voltage align with your panel labeling and service requirements before purchasing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProfessional installation\u003c\/strong\u003e—disconnect power at the main and follow local electrical codes; use proper torque on terminals and ensure clean, secure connections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor technicians and facility managers, this Siemens QJ3B150H 150A, 3‑Pole, 240V circuit breaker offers a dependable, OEM solution that keeps your three‑phase distribution protected with the exact specifications your system was designed around. Replace like-for-like to minimize downtime and preserve the panel’s electrical integrity.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427418755234,"sku":"QJ3B150H","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj3b150h-circuit-breaker-150a-3-pole-240v-575.webp?v=1789720493","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b150h-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}