{"product_id":"siemens-bq2b04000s01-40a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens BQ2B04000S01 - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ2B04000S01 is a robust 40A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect your electrical distribution system from overcurrent and short circuits. Built for dependable performance in panelboards and load centers, this breaker ensures reliable protection where it matters most—from everyday residential circuits to light commercial and industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting for a rigid, vibration-resistant bus connection.\u003c\/strong\u003e This design minimizes movement and maintains a solid electrical interface even in environments with vibration or heavy loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit for stable, repeatable protection performance.\u003c\/strong\u003e Combines instantaneous short-circuit protection with thermal overload sensing to respond accurately to rising fault currents.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design.\u003c\/strong\u003e Specifically engineered to be compatible with matching Siemens OEM load centers and panelboards for seamless integration and dependable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple settings.\u003c\/strong\u003e Suitable for residential, commercial, and light industrial applications, making it a reliable choice for a wide range of distribution needs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eApplications and use scenarios\u003c\/h2\u003e\n\u003cp\u003eUse Siemens BQ2B04000S01 as the protective backbone for branch circuits in new installations or as a replacement for aging breakers. Its bolt-on mounting is ideal when a secure, weather-resistant bus connection is critical, such as in panelboards located in garages, basements, or electrical rooms, and in light commercial service panels where dependable trip performance is essential.\u003c\/p\u003e \u003ch2\u003eTechnical specifications\u003c\/h2\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 BQ2B04000S01\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 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\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 \u003cp\u003eChoosing the Siemens BQ2B04000S01 means opting for a proven, mission-critical component that enhances the reliability of your electrical distribution. Its combination of secure mounting, consistent protection, and OEM compatibility helps ensure long-term performance and easier serviceability across residential, commercial, and light industrial installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349761839266,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_1ab3356a-ed5c-453f-af1c-52df3b64f5ac.png?v=1764156098","url":"https:\/\/www.ampstate.com\/products\/siemens-bq2b04000s01-40a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}