{"product_id":"siemens-e41b020-circuit-breaker","title":"Siemens | E41B020 | Circuit Breaker | 1-Pole | 277V | 22kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens E41B020 Circuit Breaker—a reliable, single-pole protection solution designed for 277V systems. Built for maintenance, retrofit, and replacement projects, this bolt-on breaker delivers precise specs with robust performance to safeguard your electrical panel and keep critical circuits online.\u003c\/p\u003e \u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting capacity:\u003c\/strong\u003e 22kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e E41B020\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering; the part number is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this model stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eDesigned for quick, secure installation with bolt-on mounting, ensuring reliable electrical contact and reduced vibration in demanding environments.\u003c\/li\u003e \u003cli\u003e277V single-pole protection makes it ideal for distribution panels handling 277V feeders and lighting circuits common in commercial settings.\u003c\/li\u003e \u003cli\u003e22kA interrupting capacity provides stronger fault protection for circuits with higher fault potential, helping to prevent damage to downstream equipment.\u003c\/li\u003e \u003cli\u003ePart of Siemens’ trusted lineup, offering compatibility with existing E-series panels when the part number E41B020 is specified.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho this is for\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance teams performing routine service on Siemens panels that require a precise 1-pole, 277V breaker.\u003c\/li\u003e \u003cli\u003eRetrofit projects where upgrading protection or replacing aging breakers is necessary to meet current electrical codes and panel requirements.\u003c\/li\u003e \u003cli\u003eBuilders and facility managers needing a straightforward replacement that aligns with established part numbers for smooth ordering and installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation tips and compatibility\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, verify that your panel requires a 1-pole, 277V, 22kA bolt-on breaker and that the E41B020 is the correct part reference for your setup.\u003c\/li\u003e \u003cli\u003eConfirm the panel’s mounting compatibility to ensure a bolt-on installation will fit properly with the existing hardware and bus configuration.\u003c\/li\u003e \u003cli\u003eUse the part number E41B020 as the definitive reference to maximize compatibility and minimize installation delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425609109666,"sku":"E41B020","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-e41b020-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}