{"product_id":"siemens-bq1b03000s01-30a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens BQ1B03000S01 30 Amp 120 Volt 1-Pole Bolt-On Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ1B03000S01 is a 30A, 120V, 1-pole bolt-on molded case circuit breaker designed to shield your panelboards and load centers from branch circuit overcurrent and short circuits. Built for dependable, repeatable protection, this breaker delivers a secure, vibration-resistant connection and reliable performance in a range of environments—from home electrical closets to light commercial panels.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eSecure bolt-on mounting\u003c\/b\u003e provides a rigid bus connection, reducing movement and ensuring consistent protection even in vibration-prone installations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal-magnetic trip unit\u003c\/b\u003e combines thermal overload sensing with magnetic short-circuit protection for stable, predictable trip behavior and fast response when an electrical fault occurs.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e1-pole, 30A, 120V\u003c\/b\u003e configuration for efficient protection of individual branch circuits in residential, commercial, and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMolded case construction\u003c\/b\u003e offers rugged reliability with a compact footprint designed to fit standard panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM-compatible\u003c\/b\u003e design ensures seamless integration with matching Siemens units and other compatible load centers, simplifying upgrades and replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile applications\u003c\/b\u003e suited for protecting lighting circuits, receptacle circuits, small appliance circuits, and other branch circuits in a variety of environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e BQ1B03000S01\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage:\u003c\/b\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting Style:\u003c\/b\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eWhat sets the BQ1B03000S01 apart is its thoughtful combination of secure mounting, precise protection, and broad compatibility. The bolt-on design minimizes connection looseness that can lead to unreliable trips, making it a dependable choice in spaces where equipment experiences vibration or movement. The thermal-magnetic protection delivers repeatable performance across varying temperatures and load conditions, helping prevent nuisance trips while still delivering fast response to genuine faults.\u003c\/p\u003e \u003cp\u003eIdeal for installers and building owners who demand a straightforward, reliable replacement in Siemens-compatible panels, this 30A, 120V, 1-pole breaker is a practical choice for upgrading older panels, expanding capacity in shared spaces, or replacing a failed unit without sacrificing panel compatibility.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect a dedicated lighting or receptacle circuit in a residential panel, ensuring quick shutdown during overloads or shorts.\u003c\/li\u003e \u003cli\u003eUpgrade or replace a faulty breaker in small commercial panels where reliability and ease of maintenance matter.\u003c\/li\u003e \u003cli\u003eUse in light industrial applications where a robust, bolt-on connection helps maintain steady protection in environments with mild vibration or movement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Siemens BQ1B03000S01, you gain a trusted, purpose-built solution for protecting critical electrical circuits in panelboards and load centers. Its precise, dependable performance—coupled with OEM compatibility and a secure bolt-on mount—helps you maintain safe, compliant electrical systems with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349759938722,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-bq1b03000s01-30-a-120-v-1-pole-bolt-on-circuit-breaker-709.webp?v=1788721701","url":"https:\/\/www.ampstate.com\/products\/siemens-bq1b03000s01-30a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}