{"product_id":"siemens-lgb3b100b-100a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LGB3B100B - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens LGB3B100B is a 3-pole bolt-on molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. With a 100A rating and a 600V capacity, this unit is built to handle robust 3-phase distribution while delivering consistent protection across residential, commercial, and light industrial installations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid bus connection and resists vibration, reducing loosening and improving long-term reliability in panels and equipment racks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element guards against nuisance overloads, while the magnetic element responds quickly to short circuits to minimize damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e is designed to match Siemens load centers and panelboards, ensuring a smooth, plug-and-play replacement or expansion without compatibility concerns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e supports 3-phase circuits up to 600V, making it suitable for commercial and light industrial feeders as well as multi‑phase residential setups that require reliable 3‑phase protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e built for steady performance in environments where vibration, switching, and electrical transients are common.\u003c\/li\u003e\n\u003c\/ul\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 LGB3B100B\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 100A\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 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 \u003ch2\u003eIdeal applications and use cases\u003c\/h2\u003e\n\u003cp\u003eDesigned for professionals who need reliable protection in panel enclosures, the LGB3B100B is well-suited for:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eResidential and light commercial panel upgrades where 3-phase protection is required\u003c\/li\u003e \u003cli\u003eCommercial distribution panels and service panels that demand secure, vibration-resistant mounting\u003c\/li\u003e \u003cli\u003eNew installations in dashboard or equipment rooms where robust short-circuit protection is essential\u003c\/li\u003e \u003cli\u003eReplacement in Siemens OEM load centers to maintain consistent performance and compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical guidance for use\u003c\/h2\u003e\n\u003cp\u003eTo maximize performance and safety, install the LGB3B100B in compatible Siemens panelboards and load centers, ensuring the overall panel rating supports 100A, 3-pole protection. Follow standard electrical codes for bolt-on mounting procedures, and verify that wiring and conductors are rated for up to 600V and the intended amperage. This breaker is ideal for systems where steady protection against overcurrent and short circuits is critical, such as feeder lines, motor circuits, and essential service panels in light industrial settings.\u003c\/p\u003e \u003ch2\u003eWhy choose this Siemens breaker\u003c\/h2\u003e\n\u003cp\u003eThe LGB3B100B combines a secure bolt-on installation with a proven thermal-magnetic trip mechanism and OEM-panel compatibility, delivering precise, reliable protection in a compact, durable package. It’s a purpose-built solution for professionals who value straightforward installation, predictable protection curves, and long-term panel reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349822558370,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lgb3b100b-100-a-600-v-3-pole-bolt-on-circuit-breaker-901.webp?v=1788733500","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb3b100b-100a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}