{"product_id":"siemens-ba120afch-20a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens BA120AFCH - 20 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BA120AFCH delivers reliable branch-circuit protection for residential, commercial, and light industrial panels. This 20A, 120V, 1-pole bolt-on molded-case circuit breaker is built to retrofit, upgrade, or install in Siemens-compatible panelboards and load centers, providing robust protection against overcurrent and short-circuit conditions where it matters most.\u003c\/p\u003e \u003ch3\u003eKey features that set this breaker apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays reliably in place even in busy electrical environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance by combining time-delay and instantaneous trip characteristics tailored to typical branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to pair seamlessly with matching Siemens load centers and panelboards, simplifying replacements and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for a wide range of settings—from homes and small businesses to light industrial installations—where dependable 20-amp protection at 120 volts is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\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 BA120AFCH\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 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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\u003eUse cases and real-world benefits\u003c\/h3\u003e\n\u003cp\u003eIf you’re wiring a new panel or upgrading an existing one, the BA120AFCH is a practical choice for reliable, code-compliant protection on general lighting and receptacle circuits. Its bolt-on design provides a sturdy connection in environments with vibration or movement, reducing the risk of loose connections over time. The thermal-magnetic trip mechanism helps prevent nuisance trips on normal surges while quickly interrupting fault current to minimize damage to wiring and connected devices.\u003c\/p\u003e \u003cp\u003eWho benefits most:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eHomeowners performing panel upgrades or replacements in Siemens-compatible systems\u003c\/li\u003e \u003cli\u003eElectrical contractors installing or expanding light commercial spaces\u003c\/li\u003e \u003cli\u003eMaintenance teams maintaining small industrial facilities with standard 120V branch circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompared to non-bolt-on or non-molded-case options, this breaker offers a more secure mechanical attachment, predictable trip behavior, and straightforward compatibility with OEM panelboards—leading to faster installations and long-term reliability.\u003c\/p\u003e \u003cp\u003eWhether you’re protecting a dedicated lighting circuit, an outlet cluster, or a critical small-appliance run, the Siemens BA120AFCH delivers precise protection, easy integration, and enduring performance in a compact, 1-pole package.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349756596386,"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_55cd3fb8-49b9-4129-82a8-ac27ff79f9e1.png?v=1764155988","url":"https:\/\/www.ampstate.com\/products\/siemens-ba120afch-20a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}