{"product_id":"siemens-bf240a-40a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens bf240 a - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens bf240a is a 40 A, 240 V, 2-pole bolt-on molded case circuit breaker designed to safeguard branch circuits in panelboards and loadcenters. Built for dependable overcurrent and short-circuit protection, this unit combines rugged mounting with precise protection curves, making it a reliable choice for diverse electrical setups from homes to light commercial spaces.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays tight in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by handling both sustained overloads and instantaneous short circuits with predictable response.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e works with matching Siemens panelboards and loadcenters, ensuring a clean, integrated protection solution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial circuits requiring reliable 2-pole 240 V protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded-case construction\u003c\/strong\u003e built to withstand routine electrical demand and maintain reliable performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\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 bf240a\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 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\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 \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse the bf240a to protect feeder and branch circuits in residential panelboards and commercial load centers where compact, reliable 2-pole 240 V protection is needed. It’s well-suited for circuits powering outlets, lighting, and small equipment in spaces subject to vibration or movement, such as basements, garages, or light industrial environments. When paired with compatible Siemens panel infrastructure, it provides a cohesive, code-compliant protection strategy from the service panel outward.\u003c\/p\u003e \u003ch3\u003eWhy choose this Siemens 40 A breaker\u003c\/h3\u003e\n\u003cp\u003eBeyond just meeting the electrical requirements, the bf240a offers a protection solution designed for longevity and consistency. The bolt-on mounting ensures a secure connection that resists loosening from vibration, while the thermal-magnetic trip unit delivers crisp, predictable trips that help minimize nuisance actuations and protect wiring and devices downline. Ideal for installers seeking a dependable, OEM-aligned component that complements Siemens panelboards and load centers with a proven track record.\u003c\/p\u003e \u003cp\u003eIncorporate the Siemens bf240a into your electrical enclosure to achieve robust branch-circuit protection, straightforward installation, and harmonious compatibility with existing Siemens equipment. A thoughtful choice for when reliability and compatibility matter most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355170394274,"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_39cbad7b-b73c-4755-99cf-bc011c5acd90.png?v=1764690002","url":"https:\/\/www.ampstate.com\/products\/siemens-bf240a-40a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}