{"product_id":"siemens-3rv2021-4pa10-circuit-breaker","title":"Siemens 3RV2021-4PA10 - Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eChoose reliable protection for your electrical system with the Siemens 3RV2021-4PA10 molded case circuit breaker, available from AmpState. This device delivers dependable branch circuit overcurrent and short-circuit protection in a compact form that fits neatly into panelboards and loadcenters, keeping your installation tidy and accessible.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes usable panel space while making wiring run smoother in crowded installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e blends heat-based overload protection with fast magnetic tripping for short circuits, delivering stable, repeatable protection across varying loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible performance\u003c\/strong\u003e engineered to integrate with matching Siemens load centers and panelboards for straightforward retrofits and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple environments\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications where dependable branch protection matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eHow it protects your system: The thermal element senses sustained overcurrents and slowly reacts to prevent nuisance trips, while the magnetic mechanism responds instantly to high fault currents, interrupting power flow to minimize damage and downtime. The result is a protective solution you can trust for everyday reliability and long-term safety.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing aging or defective breakers in existing Siemens panels and loadcenters.\u003c\/li\u003e \u003cli\u003eAdding circuits in homes, small offices, or light commercial spaces where panel space is at a premium.\u003c\/li\u003e \u003cli\u003eUpgrading to a proven Siemens protection scheme in new installations that require compact, space-saving protection devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation considerations\u003c\/h3\u003e\n\u003cp\u003eThe 3RV2021-4PA10 is designed to work with matching Siemens OEM load centers and panelboards, ensuring consistent trip characteristics and straightforward installation. When selecting this breaker, verify that the frame size and trip rating align with your panel’s specifications to maintain system coordination and protection accuracy.\u003c\/p\u003e \u003cp\u003eFor projects needing a trusted, space-efficient solution from a recognized name in electrical protection, the Siemens 3RV2021-4PA10 from AmpState delivers the performance you expect—compact footprint, reliable protection, and easy integration with Siemens panel hardware.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349743128738,"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_187dbb84-b549-4f61-ac05-73c9cc5a4b44.png?v=1764155704","url":"https:\/\/www.ampstate.com\/products\/siemens-3rv2021-4pa10-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}