{"product_id":"siemens-e61b090-circuit-breaker","title":"Siemens | E61B090 | Circuit Breaker | 90A | 1-Pole | 347V","description":"\u003cdiv\u003e\n\u003cp\u003eExperience dependable overcurrent protection with the Siemens E61B090 Circuit Breaker—designed for singular circuits in demanding commercial and industrial environments. This 1-pole unit delivers 90A of protective capability at 347V, making it a precise fit for panels and systems that require solid, reliable interruption on a single leg.\u003c\/p\u003e \u003ch2\u003eWhy this Siemens E61B090 matters for your panel\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact match for compatible systems.\u003c\/strong\u003e The E61B090 is identified by part number, so confirming fit and ratings is essential before ordering. Use the part number as the most reliable reference for compatibility with your Siemens panel or distribution equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current single-pole protection.\u003c\/strong\u003e With a 90A ampacity, it protects individual branch circuits or feeders that demand substantial load handling without unnecessary nuisance tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e347V rated for commercial\/industrial environments.\u003c\/strong\u003e Often used in 3-phase commercial power distributions, this rating ensures appropriate performance in higher-voltage installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready.\u003c\/strong\u003e Whether you’re upgrading an aging panel, retrofitting equipment, or replacing a failed breaker, this unit is built to integrate into compatible Siemens systems with minimal downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility guidance.\u003c\/strong\u003e The part number is the best reference for compatibility—verify against your panel labeling and service documentation to ensure seamless integration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 90A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 347V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e E61B090\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting a dedicated branch circuit or critical feeders in commercial spaces, laboratories, or light industrial settings where a single high-current leg needs reliable interruption. Use scenarios include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacement of a failed breaker in panels that specify the E61 family and 347V systems.\u003c\/li\u003e \u003cli\u003e Retrofit projects where a 90A, 1-pole solution aligns with existing wiring and load profiles.\u003c\/li\u003e \u003cli\u003eMaintenance routines that require stocking known-good part numbers for quick field swaps.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation notes and best practices\u003c\/h3\u003e\n\u003cp\u003eBefore purchase, double-check that your panel or distribution panel accepts the E61B090 and that the system voltage aligns with 347V. Keep the part number handy as your primary reference during ordering and installation. When in doubt, consult your panel’s labeling or service manual to confirm compatibility and any panel-specific installation requirements.\u003c\/p\u003e \u003cp\u003eWith Siemens’ reputation for durable electrical protection, the E61B090 delivers dependable surge interruption and predictable performance, helping keep critical loads safe and electrical systems operating smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427178664098,"sku":"E61B090","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/siemens-e61b090-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}