{"product_id":"siemens-lgg3b040-40a-600v-3-pole-circuit-breaker","title":"Siemens LGG3B040 - 40 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens LGG3B040 is a 40A, 600V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. This compact device brings robust performance to spaces where panel real estate matters, helping electrical systems stay safe without crowding the enclosure.\u003c\/p\u003e \u003cp\u003eKey features that set the LGG3B040 apart include a compact molded-case design for efficient use of panel space and a thermal-magnetic trip unit that provides stable, repeatable protection performance across a range of operating conditions. The 3-pole configuration is ideal for three-phase distributions common in commercial and light industrial environments, while remaining suitable for residential installations where three-phase protection is required.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design:\u003c\/strong\u003e Optimizes panel layout and simplifies installation in crowded or retrofit panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection to guard against both overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration:\u003c\/strong\u003e Supports three-phase circuits, expanding protection for modern commercial and light industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V, 40A rating:\u003c\/strong\u003e Suitable for a wide range of branch circuits and distribution feeders up to 600 volts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible:\u003c\/strong\u003e Designed to be compatible with matching Siemens OEM load centers and panelboards for straightforward installation and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Appropriate for residential, commercial, and light industrial projects that require reliable overcurrent and short-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios include upgrading panel protection in small offices, workshops, and service rooms where 3-phase power is present, as well as retrofit tasks in existing Siemens panel systems. This breaker helps ensure that critical circuits—whether powering lighting, HVAC, or controlled equipment—remain protected under fault conditions, while aligning with Siemens’ ecosystem for consistent performance and compatibility.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications at a glance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart number: LGG3B040\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 40A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349822886050,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lgg3b040-40-a-600-v-3-pole-circuit-breaker-ampstate-breakers-219.webp?v=1788733586","url":"https:\/\/www.ampstate.com\/products\/siemens-lgg3b040-40a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}