{"product_id":"siemens-lgb3b080b-80a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LGB3B080B - 80 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003eSiem ens LGB3B080B delivers dependable branch circuit protection in a compact, three-pole package. With an 80A rating and a 600V insulating capability, this bolt-on molded case circuit breaker is built for panelboards and load centers that demand durable, maintenance-friendly overcurrent and short-circuit protection. \u003ch3\u003eWhy this 3-Pole Bolt-On Breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e creates a rigid, vibration‑resistant bus connection that stays aligned through harsh electrical environments, reducing loosening risk over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by sensing both overload (thermal) and short-circuit (magnetic) conditions, helping prevent nuisance trips and ensuring fast response when it matters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is designed to pair seamlessly with matching Siemens OEM load centers and panelboards, minimizing integration issues during upgrades or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad suitability\u003c\/strong\u003e covers residential, commercial, and light industrial applications, making it a versatile choice for new installations or retrofit projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect subfeed or branch circuits in residential subpanels that require reliable 80A protection in a 3-phase setup.\u003c\/li\u003e \u003cli\u003eUpgrade or replace aging breakers in existing Siemens-compatible panelboards and load centers, ensuring consistent trip characteristics and coordination with other protection devices.\u003c\/li\u003e \u003cli\u003eApplications in light commercial spaces where a robust, three-pole breaker is needed to guard shared loads and reduce risk of cascading faults.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical overview\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 LGB3B080B\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 80 A\u003c\/li\u003e \u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\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\u003ePractical considerations for installation and operation\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure the panelboard or load center is compatible with the LGB3B family to maintain coordinated protection and proper fitment.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications for bolt-on mounting to preserve the integrity of the bus connection and trip performance.\u003c\/li\u003e \u003cli\u003eUse in configurations where 3-pole protection is required for balanced three-phase systems, motor loads, or multi-wire branch circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAvailable through AmpState, the Siemens LGB3B080B combines a robust bolt-on design with a reliable thermal-magnetic protection mechanism. If you need a dependable, OEM-compatible solution for 80 A, 600 V, 3-pole branch circuit protection in panelboards and load centers, this breaker is built to perform when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349822492834,"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_113e5abb-9acc-4ed2-bb6c-aff829b2618d.png?v=1764157743","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb3b080b-80a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}