{"product_id":"siemens-lgb2b040b-40a-600v-2-pole-bolt-on-circuit-breaker","title":"Siemens LGB2B040B - 40 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens LGB2B040B is a 40A, 600V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and load centers. Its bolt-on mounting creates a secure, vibration-resistant bus connection, helping maintain electrical integrity in challenging installation environments.\u003c\/p\u003e \u003ch3\u003eKey benefits that matter in real-world setups\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e ensures a rigid, vibration-resistant connection that stays tight through routine service and site conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection: the thermal element handles steady overcurrent, while the magnetic element delivers an instantaneous response to short circuits, helping protect wiring and connected devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole, 40A, 600V rating\u003c\/strong\u003e supports multi-wire circuits with coordinated protection and safe interruption of power across both conductors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to integrate seamlessly with Siemens load centers and panelboards, making installation straightforward and maintenancelicher.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential, commercial, and light industrial environments, including main service panels, subpanels, and equipment disconnects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing aging breakers in Siemens-compatible panels to restore reliable overcurrent and short-circuit protection.\u003c\/li\u003e \u003cli\u003eInstalling in new or existing panelboards where a robust, bolt-on solution is required to withstand vibration and electrical noise in busy electrical rooms.\u003c\/li\u003e \u003cli\u003eProtecting critical branch circuits in homes, offices, shops, and small facilities that demand predictable trip behavior and easy serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 LGB2B040B\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 40A\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 \u003cp\u003eWith its combination of secure mounting, precise protection, and OEM compatibility, the Siemens LGB2B040B is a dependable choice for safeguarding electrical systems across a range of installations. It’s a practical, no-nonsense solution for installers who value consistency, reliability, and ease of integration in Siemens-based panel configurations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349821903010,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lgb2b040b-40-a-600-v-2-pole-bolt-on-circuit-breaker-220.webp?v=1788733261","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb2b040b-40a-600v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}