{"product_id":"siemens-ed21b020l-20a-120v-1-pole-circuit-breaker","title":"Siemens ED21B020L - 20 A, 120 V, 1-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens ED21B020L — a purpose-built 20A, 120V, 1-pole molded case circuit breaker engineered to protect your electrical system with precision. Designed for dependable branch circuit overcurrent and short-circuit protection, this breaker is a smart choice for panelboards and loadcenters across residential, commercial, and light industrial environments.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient design:\u003c\/strong\u003e The compact molded case construction maximizes panel space, making it ideal for crowded or retrofit panels where every inch counts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection against overcurrent and short circuits, reducing nuisance trips and ensuring consistent performance over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e Engineered to be compatible with matching Siemens OEM loadcenters and panelboards, promoting reliable fit and electrical continuity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e Suitable for a range of settings — from homes to small commercial and light industrial installations — where 120V, single-pole protection is required.\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 ED21B020L\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 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1\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\u003eDesigned for professionals and DIYers alike, the ED21B020L offers a straightforward path to upgrading or expanding panel capacity without sacrificing protection quality. Its 1-pole configuration is perfect for individual branch circuits, providing targeted protection where you need it most while keeping installation clean and organized.\u003c\/p\u003e \u003cp\u003ePractical tips for use include verifying that your panelboard is compatible with Siemens ED-series breakers and ensuring power is fully disconnected before replacement. When replacing an existing breaker, match the ED21B020L to the panel’s listed specs and tighten connections to the manufacturer’s recommended torque. For ongoing reliability, pair this breaker with properly rated conductors and protective devices within the same electrical system to maintain balanced protection across circuits.\u003c\/p\u003e \u003cp\u003eWhether you're upgrading an aging panel, adding a new 120V circuit, or consolidating space in a compact panel, the Siemens ED21B020L delivers dependable protection with a design that respects your panel layout and your budget.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349784547490,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ed21b020l-20-a-120-v-1-pole-circuit-breaker-ampstate-287.webp?v=1788724494","url":"https:\/\/www.ampstate.com\/products\/siemens-ed21b020l-20a-120v-1-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}