{"product_id":"siemens-lgb3b025b-25a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LGB3B025B - 25 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens LGB3B025B is a robust 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection where it matters most—panelboards and loadcenters. With a 25 A rating and a 600 V maximum, this unit is built to handle multi-phase electrical setups in residential, commercial, and light industrial environments while maintaining stable protection across varying loads and temperatures.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey advantages that set this breaker apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, reducing movement and wear that can lead to nuisance trips or loose connections over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding appropriately to both long-term overcurrent and instantaneous short-circuit events.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case design\u003c\/strong\u003e minimizes arc fault exposure and fits seamlessly with standard panelboard architectures, simplifying replacement and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Siemens OEM loadcenters and panelboards, ensuring a cohesive protection solution across your electrical system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile three-pole configuration\u003c\/strong\u003e ideal for three-phase circuits, common in commercial and light industrial applications, while still suitable for certain residential multi-wire installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this matters for your electrical system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtects critical feeders and branch circuits from overcurrent, helping prevent wiring damage, overheating, and electrical fires.\u003c\/li\u003e \u003cli\u003eIts thermal-magnetic trip offers precise coordination with other protective devices, reducing unnecessary trips and downtime.\u003c\/li\u003e \u003cli\u003eBolt-on mounting simplifies field replacement and ensures a durable bus connection even in environments with vibration or movement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eNew installations in three-phase panelboards or load centers for commercial spaces and light industrial machinery.\u003c\/li\u003e \u003cli\u003eUpgrading or replacing aging protection in existing Siemens systems where OEM compatibility is important.\u003c\/li\u003e \u003cli\u003eIntegrated protection in multi-circuit residential panels that require reliable 3-pole overcurrent protection for compliant, safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\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 LGB3B025B\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 25 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\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 \u003cp\u003eChoose the Siemens LGB3B025B when you need a reliable, OEM-compatible protection solution that combines secure mounting, precise protection, and practical durability for demanding panelboard or loadcenter configurations. This 25 A, 600 V, 3-pole bolt-on breaker is a thoughtful, value-driven choice for electricians and facilities managers prioritizing long-term safety and system integrity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349822263458,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lgb3b025b-25-a-600-v-3-pole-bolt-on-circuit-breaker-747.webp?v=1788733397","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb3b025b-25a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}