{"product_id":"siemens-b220-20a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens B220 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSecure, dependable branch‑circuit protection for 240V systems—the Siemens B220 is a 20A, 2‑pole bolt‑on molded‑case circuit breaker designed for panelboards and loadcenters. Its robust bolt‑on mounting delivers a rigid, vibration‑resistant bus connection, helping prevent loose contacts and arcing over time. The thermal‑magnetic trip unit provides stable, repeatable protection against both overloads and short circuits, maintaining accurate response across varying temperatures and load conditions. Compatible with matching OEM loadcenters and panelboards, this breaker is a reliable, ready‑to‑use solution for residential, commercial, and light industrial electrical needs.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt‑on mounting:\u003c\/strong\u003e secure, vibration‑resistant connection that stays firmly seated under demanding conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit:\u003c\/strong\u003e combines overload protection with fast short‑circuit response for consistent protection performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e designed to work with Siemens loadcenters and panelboards for straightforward replacements and reliable listings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2‑pole, 240V design:\u003c\/strong\u003e ideal for shared 240V branch circuits in homes, offices, and light commercial spaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20A rating:\u003c\/strong\u003e provides precise protection for circuits that require a balanced, predictable trip threshold.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded‑case construction:\u003c\/strong\u003e durable, compact housing built for long service in standard electrical panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e suitable for residential, commercial, and light industrial installations where robust protection and easy integration matter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\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 B220\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 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 2\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 \u003ch3\u003eIdeal Use Scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failing or aging breaker in Siemens panelboards or loadcenters with a like‑for‑like 2‑pole, 20A, 240V unit to restore proper protection.\u003c\/li\u003e \u003cli\u003eUpgrading a dedicated 240V branch circuit in a residential or light commercial setup where a reliable bolt‑on solution is preferred for jobsite stability.\u003c\/li\u003e \u003cli\u003eAdding a new 240V circuit in a retrofit project, ensuring compatibility with existing Siemens OEM panels for a clean, code‑compliant installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and Practical Tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the panel and verify that the intended loadcenter supports bolt‑on breakers before installation.\u003c\/li\u003e \u003cli\u003eInstall the B220 into a matching Siemens panelboard or loadcenter to ensure proper alignment with the bus and labeling.\u003c\/li\u003e \u003cli\u003eTighten mounting hardware to the torque specifications specified by Siemens to maintain a secure bus connection and minimize vibration.\u003c\/li\u003e \u003cli\u003eAfter installation, test any connected circuits to confirm stable protection and check that the trip unit responds predictably under controlled conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349748306082,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-b220-20-a-240-v-2-pole-bolt-on-circuit-breaker-ampstate-545.webp?v=1788720340","url":"https:\/\/www.ampstate.com\/products\/siemens-b220-20a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}