{"product_id":"siemens-bq1b050h-50a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens BQ1B050H - 50 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ1B050H is a dependable, bolt-on molded case circuit breaker engineered for robust branch-circuit protection in panelboards and load centers. With a 50A rating at 120V and a single pole, this device delivers precise, reliable protection where it matters most—preventing overloads and short circuits from compromising your electrical system.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting for a secure, vibration-resistant connection\u003c\/strong\u003e—the bolt-on design delivers a rigid bus connection that stays seated through equipment vibration and routine panel maintenance, reducing loosening trips and erratic performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit for stable, repeatable protection\u003c\/strong\u003e—combines thermal delay with magnetic instantaneous action to guard against sustained overloads and high fault currents, helping protect wiring and connected loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible for trusted panel performance\u003c\/strong\u003e—matched to Siemens loadcenters and panelboards to ensure proper fit, reliable trip characteristics, and seamless integration with your existing protection scheme.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for residential, commercial, and light industrial environments\u003c\/strong\u003e—a practical choice for kitchens, offices, small shops, and service panels where dependable, code-compliant protection is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 50A, 120V specification\u003c\/strong\u003e—compact yet powerful, designed to protect a single branch circuit with straightforward replacement in compatible Siemens panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this breaker matters in your electrical system\u003c\/h2\u003e \u003cp\u003eBranch circuits rely on precise protection to prevent damage from overloads and short circuits. The BQ1B050H’s thermal-magnetic trip curve provides predictable release behavior across typical temperature ranges, ensuring you’re not left guessing when a fault occurs. Its molded-case construction delivers solid durability, while the bolt-on mounting keeps the device firmly connected to the bus, minimizing nuisance trips caused by loose connections or panel movement.\u003c\/p\u003e \u003ch3\u003eKey use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eReplacing a failed or worn-out breaker in compatible Siemens panelboards or loadcenters without compromising system integrity.\u003c\/li\u003e \u003cli\u003eAdding or upgrading a single branch circuit to 50A protection in residential or light commercial installations, with appropriate conductor sizing and code-compliant wiring practices.\u003c\/li\u003e \u003cli\u003eRetrofits and service panel upgrades where maintaining OEM compatibility and consistent trip performance is critical for reliability and safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BQ1B050H\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 50A\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 \u003cp\u003eIdeal for electricians and facilities builders seeking a reliable, code-compliant protection device from a trusted brand, the Siemens BQ1B050H offers straightforward installation, durable construction, and predictable performance in a compact, single-pole package. Available through AmpState, it’s a solid choice when your panelboard or load center requires dependable 50A protection at 120V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349760430242,"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_eddb3219-159d-43e7-997a-ea1063d993a0.png?v=1764156072","url":"https:\/\/www.ampstate.com\/products\/siemens-bq1b050h-50a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}