{"product_id":"siemens-lgb1b020b-circuit-breaker","title":"Siemens | LGB1B020B | Circuit Breaker | 20A | 1-Pole | 277V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing Siemens LGB1B020B, a 20A, 1-Pole circuit breaker engineered for 277V applications and bolt-on mounting. This OEM-grade component is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter. When reliability and precise compatibility are non-negotiable, this breaker delivers the performance you expect from Siemens.\u003c\/p\u003e \u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy it stands out\u003c\/h2\u003e\n\u003cp\u003eSiemens designed the LGB1B020B to align with standard bolt-on panels, ensuring secure mounting and consistent electrical characteristics. The part number itself is your best reference for compatibility, so double-check against LGB1B020B when selecting replacements. This breaker is ideal for circuits where 277V is common, offering dependable protection in commercial and industrial environments.\u003c\/p\u003e \u003ch2\u003eUse cases and ideal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and replacements in 277V circuits within commercial buildings, schools, or industrial facilities.\u003c\/li\u003e \u003cli\u003eRetrofits where a 20A, 1-Pole bolt-on breaker is required to upgrade aging panels.\u003c\/li\u003e \u003cli\u003eReplacement in systems designed around Siemens bolt-on breakers to preserve panel integrity and trip performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify fit and ratings before ordering by cross-referencing the exact part number (LGB1B020B) with your panel’s requirements.\u003c\/li\u003e \u003cli\u003eEnsure the panel is designed to accept bolt-on breakers of this specification and that wiring diagrams align with a 1-Pole, 20A, 277V device.\u003c\/li\u003e \u003cli\u003eFollow all local electrical codes and safety procedures when performing replacements; disconnect power safely and consult a licensed electrician if needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho should consider this breaker\u003c\/h2\u003e\n\u003cp\u003eFacilities managers, electrical engineers, and professional electricians responsible for maintaining or upgrading commercial electrical infrastructure will find this Siemens LGB1B020B to be a precise, dependable choice for 277V circuits where a 20A, 1-Pole bolt-on breaker is required.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426822049954,"sku":"LGB1B020B","price":637.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb1b020b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}