{"product_id":"siemens-3rv2021-0ha10-circuit-breaker","title":"Siemens 3RV2021-0HA10 - Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens 3RV2021-0HA10 molded case circuit breaker delivers dependable branch circuit overcurrent and short-circuit protection, purpose-built for panelboards and load centers. Its compact profile and precise thermal-magnetic trip technology are designed to keep essential electrical systems safe and accessible, even in tight installs.\u003c\/p\u003e \u003ch3\u003eKey features that matter in real-world panels\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes usable panel space, making it easier to wire and expand without crowding the enclosure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by reacting to both overload conditions and short-circuit surges, reducing nuisance trips and guarding downstream circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e engineered to fit and perform with matching Siemens OEM load centers and panelboards for reliable electrical performance and easy replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e well-suited for residential, commercial, and light industrial environments where consistent overcurrent protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\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 3RV2021-0HA10\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\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\u003eUpgrading or upgrading from older protection devices in residential distribution panels to improve protection reliability and panel organization.\u003c\/li\u003e \u003cli\u003eRetrofit projects in commercial spaces where space-saving breakers help maintain clean wiring and easier future expansion.\u003c\/li\u003e \u003cli\u003eNew installations in light industrial settings that require consistent performance under varying loads and short-circuit events.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cp\u003eWhat sets the 3RV2021-0HA10 apart is Siemens’ integration of a compact form factor with a thermal-magnetic trip mechanism that delivers predictable protection aligned with real-world load conditions. The design emphasizes compatibility with Siemens panel ecosystems, which translates to smoother replacement, fewer mismatches, and dependable long-term operation in both new builds and retrofits.\u003c\/p\u003e \u003ch3\u003ePractical guidance for selection and use\u003c\/h3\u003e\n\u003cp\u003eWhen choosing this breaker, ensure the amperage rating and trip characteristics match the original specification for your Siemens panel center. Because it’s designed for OEM compatibility, pairing 3RV2021-0HA10 with the appropriate Siemens panelboard or load center helps maintain electrical performance, coordinated protection, and warranty integrity. If you’re integrating into a mixed-system panel, consult your electrical schematic to confirm the device’s suitability for branch circuit protection in that specific installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349741785250,"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_c7030721-bc6e-4001-97cb-29c17970ccb4.png?v=1764155672","url":"https:\/\/www.ampstate.com\/products\/siemens-3rv2021-0ha10-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}