{"product_id":"siemens-lgb2b050b-50a-600v-2-pole-bolt-on-circuit-breaker","title":"Siemens LGB2B050B - 50 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens LGB2B050B is a 50A, 600V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for robust performance in a range of environments, this breaker combines a secure mounting method with precise protective action, making it a reliable choice for upgrading or maintaining electrical safety in power distribution systems.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\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 consistent electrical contact and reducing the risk of loose connections in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Delivers stable, repeatable protection by combining overload (thermal) and short-circuit (magnetic) response, helping to quickly isolate faults without nuisance tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-friendly compatibility\u003c\/strong\u003e: Engineered to work with matching Siemens OEM loadcenters and panelboards, simplifying replacement or expansion projects and preserving system integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e: Suitable for residential, commercial, and light industrial applications where reliable branch-circuit protection is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use scenarios\u003c\/h2\u003e\n\u003cp\u003eUse the Siemens LGB2B050B to protect 240V branch circuits and equipment in panelboards and loadcenters. It’s an excellent fit for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading older distribution panels to meet current protection requirements\u003c\/li\u003e \u003cli\u003ePowering high-demand 240V loads such as air conditioning, large heating elements, or workshop equipment\u003c\/li\u003e \u003cli\u003eNew installations in residential basements, small commercial spaces, or light industrial facilities where a dependable 2-pole, 50A breaker is needed\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and installation at a glance\u003c\/h2\u003e\n\u003cp\u003eThis bolt-on breaker is designed to pair with Siemens panelboards and loadcenters that specify bolt-on, molded case devices. For best results, ensure the matching OEM hardware and bus connections are in place, and follow standard electrical safety practices during installation. The bolt-on style provides a straightforward mounting approach that remains secure through typical vibrations and load variations in daily operation.\u003c\/p\u003e \u003ch2\u003eTechnical specifications\u003c\/h2\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 LGB2B050B\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 600V\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 \u003ch2\u003eWhat you gain with the Siemens LGB2B050B\u003c\/h2\u003e\n\u003cp\u003eReliable protection with predictable trip performance, a mounting approach that resists vibration over time, and seamless compatibility with Siemens panelboards. Whether you’re performing a targeted replacement in an existing installation or specifying components for a new build, this 2-pole 50A breaker helps you maintain safe, efficient power distribution with minimal downtime and maintenance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349821935778,"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_0a58b5ba-4c87-4612-a480-5c6a327a747d.png?v=1764157719","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb2b050b-50a-600v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}