{"product_id":"siemens-bq2b045-45a-2p-240v-circuit-breaker","title":"Siemens BQ2B045 45A 2P 240V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens BQ2B045 45A 2P 240V Circuit Breaker is built for dependable, everyday electrical protection in panelboards, load centers, and electrical distribution systems. Designed for professionals who demand a precise part-number match, this bolt-on breaker delivers reliable performance where it matters most—from routine maintenance to new panel builds.\u003c\/p\u003e \u003ch3\u003eKey advantages that set the BQ2B045 apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e for fast, secure installation in electrical panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole design\u003c\/strong\u003e with a 240V rating to safeguard multi-wire branch circuits efficiently.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e45 Amp capacity\u003c\/strong\u003e provides robust protection for circuits that require higher current interrupting capability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e ensures compatibility with Siemens equipment, reducing guessing work during installs or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for panelboards, load centers, and various electrical distribution setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability from AmpState\u003c\/strong\u003e to support timely maintenance and stocking strategies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine panel maintenance where exact part compatibility is critical.\u003c\/li\u003e \u003cli\u003eSpare inventory for field technicians who need reliable, ready-to-go replacements.\u003c\/li\u003e \u003cli\u003eNew panel builds or upgrades that require a Siemens BQ2B045 with a precise electrical rating.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this choice makes sense for your project\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrecise compatibility minimizes installation delays and misfits in Siemens systems.\u003c\/li\u003e \u003cli\u003eBolt-on architecture offers a solid, vibration-resistant connection ideal for environments with occasional panel access.\u003c\/li\u003e \u003cli\u003eThe 2-pole, 240V configuration is purpose-built for protecting dual hot-wire circuits, helping prevent nuisance trips and enhancing overall panel reliability.\u003c\/li\u003e \u003cli\u003eWith AmpState’s inventory, you can source the exact BQ2B045 when you need it—reducing back-and-forth and ensuring you have the right part on hand.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410916626594,"sku":"BQ2B045","price":151.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-bq2b045-45a-2p-240v-circuit-breaker-bolt-on-ampstate-391.webp?v=1788990698","url":"https:\/\/www.ampstate.com\/products\/siemens-bq2b045-45a-2p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}