{"product_id":"siemens-bq1b020h-20a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens BQ1B020H - 20 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens BQ1B020H, a dependable 20-amp, 120-volt, 1-pole bolt-on molded case circuit breaker designed to shield your panelboard or loadcenter from overloads and short circuits. Built for real-world electrical protection, this compact unit fits seamlessly into residential, commercial, and light industrial electrical setups.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e delivers a rigid, vibration-resistant bus connection, reducing the risk of loose connections and arc-causing movement over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e ensures stable, repeatable protection for both overloads and short circuits, helping to minimize nuisance trips while maintaining critical circuit safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e engineered to work with matching Siemens loadcenters and panelboards, promoting reliable electrical performance and straightforward replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for a wide range of electrical environments—residential, commercial, and light industrial—where dependable branch circuit protection is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical highlights\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: \u003cstrong\u003e20A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage rating: \u003cstrong\u003e120V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eNumber of poles: \u003cstrong\u003e1\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eMounting style: \u003cstrong\u003eBolt-on\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eType: \u003cstrong\u003eThermal-magnetic molded case circuit breaker\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eManufacturer: \u003cstrong\u003eSiemens\u003c\/strong\u003e | Part number: \u003cstrong\u003eBQ1B020H\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis breaker is the right choice when you need immediate, reliable protection for branch circuits without sacrificing installation efficiency. The bolt-on design locks the breaker into a solid electrical path, which is especially valuable in environments with vibration or where panel access is frequent. The thermal-magnetic trip mechanism provides dependable response to both gradual overloads and sudden fault currents, helping to prevent wiring damage and equipment failure.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eWiring new or existing residential panels where a 20A, 120V single-pole protection is required for lighting or receptacle circuits\u003c\/li\u003e \u003cli\u003eUpgrading aging panelboards in small offices or retail spaces that rely on robust, easy-to-replace breakers\u003c\/li\u003e \u003cli\u003eHome renovation projects where compatibility with Siemens loadcenters ensures a clean, code-compliant installation\u003c\/li\u003e \u003cli\u003eParts replacement in environments where vibration resistance and secure connections are important for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic substitutes, the Siemens BQ1B020H combines a bolt-on mounting approach with a thoughtful thermal-magnetic trip design, delivering predictable protection and a durable connection in demanding panel installations. Its OEM compatibility means fewer compatibility concerns during replacements or panel upgrades, helping you maintain code compliance and system integrity without guesswork. For technicians and homeowners who value reliability, straightforward serviceability, and precise protection, this 1-pole breaker is a practical, long-term solution.\u003c\/p\u003e \u003cp\u003eWhether you're configuring a new panel or upgrading an older distribution board, the Siemens BQ1B020H delivers clear, dependable protection for your 20A, 120V circuits. Add it to your order from AmpState to ensure your electrical system stays safeguarded and compliant.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349759643810,"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_969d29ae-4f5b-4397-8b87-5a4201175c7b.png?v=1764156053","url":"https:\/\/www.ampstate.com\/products\/siemens-bq1b020h-20a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}