{"product_id":"siemens-lgb1b030b-30a-347v-1-pole-bolt-on-circuit-breaker","title":"Siemens LGB1B030B - 30 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens LGB1B030B — a 30A, 347V, 1-pole bolt-on molded case circuit breaker crafted to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure the demands of commercial and light industrial environments, this breaker combines rugged mounting with precise protection for peace of mind in every installation.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: a rigid, vibration-resistant bus connection that helps prevent loosening and promotes consistent electrical contact over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: delivers stable, repeatable protection by reacting to both overload and short-circuit conditions, reducing nuisance trips while safeguarding circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 30A rating\u003c\/strong\u003e: targeted protection for individual branch circuits that require 30A, balancing safety with performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e347V voltage rating\u003c\/strong\u003e: suited for commercial distribution systems where higher voltage operation improves efficiency and reduces conductor stress on appropriate loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel compatibility\u003c\/strong\u003e: designed to fit matching Siemens OEM load centers and panelboards, making retrofits and new installations straightforward.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e: ideal for residential, commercial, and light industrial applications that demand reliable overcurrent and short-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems does the LGB1B030B solve?\u003c\/h3\u003e\n\u003cp\u003eIn busy electrical rooms, connections can loosen and unpredictable trips can disrupt operations. The LGB1B030B’s bolt-on design minimizes bus movement, while its thermal-magnetic trip unit delivers predictable response across varying loads and temperatures. The result is safer circuits, fewer downtime events, and equipment protection you can count on.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing breakers in Siemens panelboards and load centers that require a 1-pole, 30A solution.\u003c\/li\u003e \u003cli\u003eProtecting individual 347V branch circuits in commercial spaces, lighting rooms, and controlled environments.\u003c\/li\u003e \u003cli\u003eRetrofit projects where a compatible bolt-on MCCB is needed for reliable overcurrent and short-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 LGB1B030B\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 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 347 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e 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":46349821739170,"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_7c551dde-9349-4226-8323-c40f56b93fe1.png?v=1764157710","url":"https:\/\/www.ampstate.com\/products\/siemens-lgb1b030b-30a-347v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}