{"product_id":"siemens-bq2b04500s01-circuit-breaker","title":"Siemens | BQ2B04500S01 | Circuit Breaker | 2-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ2B04500S01 is a genuine 2-pole circuit breaker designed for reliable protection in your electrical panel. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this 240V breaker helps keep circuits safe while you upgrade or repair your system.\u003c\/p\u003e \u003cp\u003eKey attributes at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e 2-Pole dual-breaker for two hot conductors in a 240V circuit\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e BQ2B04500S01 — use this number as the primary compatibility check\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e maintenance, retrofit, and replacement in compatible Siemens panels\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eTwo-pole design ensures simultaneous disconnection of both lines, improving safety during service and troubleshooting of 240V circuits.\u003c\/li\u003e \u003cli\u003eUsing the exact part number BQ2B04500S01 makes it easier to match with your Siemens panel and avoid adapters or improvisations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or worn-out breaker in a Siemens panel that supports 2-pole 240V protection\u003c\/li\u003e \u003cli\u003eRetrofits where an existing 240V circuit needs updated protection without changing the panel layout\u003c\/li\u003e \u003cli\u003eMaintenance cycles that require stock of compatible replacement parts to minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical compatibility tips:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before ordering—match the part number (BQ2B04500S01) with your panel’s documentation\u003c\/li\u003e \u003cli\u003eEnsure your panel family accepts 2-pole 240V breakers of this type to prevent mismatches\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith Siemens' proven reliability and this exact part, you can approach panel servicing with confidence, knowing you have a precise, safe, and straightforward replacement option when you need it most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427494875298,"sku":"BQ2B04500S01","price":1284.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-bq2b04500s01-circuit-breaker-2-pole-240v-560.webp?v=1789731109","url":"https:\/\/www.ampstate.com\/products\/siemens-bq2b04500s01-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}