{"product_id":"commander-50-amp-circuit-breaker-bql50-50a-120v-1-pole-bolt-on-circuit-breaker","title":"Commander 50 Amp Circuit Breaker BQL50 - 50 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Commander BQL50 is a 50 Amp, 120-volt, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and load centers. Built for reliability and straightforward installation, this unit is a practical choice for a wide range of electrical sets ups where single-circuit protection is needed.\u003c\/p\u003e \u003ch3\u003eWhy the Commander BQL50 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, helping maintain a solid electrical path even in settings with movement or vibrations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance—responding to sustained overloads and sudden short-circuits with precision.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 50 A at 120 V\u003c\/strong\u003e configuration is ideal for protecting a single branch circuit without unnecessary complexity in smaller panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to pair with matching load centers and panelboards, simplifying replacement, service, and future upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile across applications\u003c\/strong\u003e—well suited for residential, commercial, and light-industrial environments where reliable overcurrent protection matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it protects your electrical system\u003c\/h3\u003e\n\u003cp\u003eWhen current exceeds the 50 A rating or a fault creates a short circuit, the thermal-magnetic trip activates to interrupt the circuit quickly. This minimizes potential damage to wires, devices, and downstream equipment while reducing downtime. The molded-case construction adds durability for years of steady service in busy panels.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential subpanels and main distribution panels needing dependable single-circuit protection\u003c\/li\u003e \u003cli\u003eSmall commercial lighting and receptacle circuits where reliable overcurrent protection is essential\u003c\/li\u003e \u003cli\u003eLight industrial control circuits requiring robust protection with straightforward maintenance\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Commander\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e BQL50\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 50 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 120 V\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\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eEnsure the panelboard or load center is designed for a 1-pole bolt-on breaker of this rating. For best results, follow the panel manufacturer’s torque specifications on the mounting screws to maintain a secure, vibration-free connection over time. When replacing an existing unit, confirmOEM compatibility to preserve panel performance and warranty coverage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349486620834,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_1a6c5821-96b9-49bb-a95d-817a78da4c70.png?v=1764147962","url":"https:\/\/www.ampstate.com\/products\/commander-50-amp-circuit-breaker-bql50-50a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}