{"product_id":"siemens-ed41b045l-circuit-breaker","title":"Siemens | ED41B045L | Circuit Breaker | 45A | 1-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for dependable protection in 277-volt electrical systems, the Siemens ED41B045L circuit breaker delivers reliable, OEM-grade performance for maintenance, retrofit, and replacement projects where exact specifications matter. This 45A, 1-pole device is designed to slot into compatible Siemens configurations with ease, helping protect downstream wiring and connected equipment from overloads and faults.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e ED41B045L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this Siemens breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eOEM-grade compatibility ensures you’re pairing with the original design intent and panel architectures, reducing the guesswork during upgrades or replacements.\u003c\/li\u003e \u003cli\u003e277-volt suitability makes it a practical choice for commercial lighting circuits and other 277V distribution needs.\u003c\/li\u003e \u003cli\u003eClear compatibility cue: the part number ED41B045L is the best reference for ensuring a correct match in your system.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use scenarios\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: swap in a like-for-like breaker to restore circuit protection without altering panel configuration.\u003c\/li\u003e \u003cli\u003eRetrofits: upgrade legacy systems to a modern, reliable 45A, 277V, 1-pole solution that fits existing Siemens infrastructure.\u003c\/li\u003e \u003cli\u003eReplacements: pull a failed unit from a compatible Siemens panel and replace it with ED41B045L to maintain consistent protection characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow to verify compatibility\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel’s documentation. The ED41B045L part number is the most reliable reference to ensure seamless replacement or retrofit. If your system operates at 277V and requires a 45A, 1-pole protection device within Siemens’ family, this breaker is a precise match.\u003c\/p\u003e \u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eOne Siemens ED41B045L circuit breaker (45A, 1-Pole, 277V)\u003c\/li\u003e \u003cli\u003eA trusted, industry-standard component designed to work within compatible Siemens panels and circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426797310114,"sku":"ED41B045L","price":489.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-ed41b045l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}