{"product_id":"siemens-qj2b150h-circuit-breaker","title":"Siemens | QJ2B150H | Circuit Breaker | 150A | 2-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens QJ2B150H is a high-capacity, bolt-on circuit breaker engineered for demanding electrical panels where reliability and precise protection matter. With a 150-amp rating and a 2-pole design, this 240V device is built for commercial and industrial applications that require solid, predictable performance for both legs of the circuit. It’s the practical choice for maintenance, retrofit, and replacement projects where exact specifications are essential.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e QJ2B150H\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose the Siemens QJ2B150H\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting for secure, durable installation\u003c\/strong\u003e in compatible Siemens panels, simplifying field replacements and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact-spec compatibility\u003c\/strong\u003e with Siemens QJ-series panel assemblies, reducing the risk of fitment issues during retrofit or replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole protection\u003c\/strong\u003e ensures simultaneous isolation of both live conductors, delivering reliable protection for multi-wire circuits at 240V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear reference point for ordering\u003c\/strong\u003e the exact unit you need by part number, minimizing guesswork in procurement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance work on aging distribution panels that require a like-for-like replacement to restore original protection levels.\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading to a 150A, 2-pole, 240V breaker is part of a panel modernization or service expansion.\u003c\/li\u003e \u003cli\u003eNew installations in commercial or light industrial settings that rely on Siemens bolt-on breakers for dependable, field-compatible protection.\u003c\/li\u003e \u003cli\u003eReplacement when a failed or degraded 150A, 2-pole unit needs to be swapped in without altering the surrounding panel hardware.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eVerify fit and ratings before ordering:\u003c\/strong\u003e refer to the part number QJ2B150H as your primary compatibility reference to ensure the breaker matches your panel’s mounting pattern and electrical ratings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMatch to a compatible Siemens bolt-on panel\u003c\/strong\u003e to ensure secure mounting and reliable electrical contact.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended\u003c\/strong\u003e to confirm proper torque, secure bus connection, and correct field wiring practices for 240V circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor projects requiring precise, dependable 150A protection in a 240V, 2-pole format, the Siemens QJ2B150H bolt-on circuit breaker offers a robust, field-proven solution. Use the part number as your best reference to guarantee compatibility and smooth installation in your Siemens panel system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427422064802,"sku":"QJ2B150H","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj2b150h-circuit-breaker-150a-2-pole-240v-bolt-327.webp?v=1789721237","url":"https:\/\/www.ampstate.com\/products\/siemens-qj2b150h-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}