{"product_id":"siemens-ed41b045-circuit-breaker","title":"Siemens | ED41B045 | Circuit Breaker | 45A | 1-Pole | 277V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens ED41B045 circuit breaker — a dependable, bolt-on, 1-pole device engineered for 45 amps and 277 volts. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this breaker helps you restore reliable protection without overhauling your panel.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 45A\u003c\/li\u003e \u003cli\u003ePoles: 1-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 277V\u003c\/li\u003e \u003cli\u003eMounting: Bolt-On\u003c\/li\u003e \u003cli\u003ePart number: ED41B045\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this Siemens ED41B045\u003c\/h3\u003e\n\u003cp\u003eThis bolt-on circuit breaker is tailored for 277V distribution environments, delivering solid, on-site protection in a compact, straightforward package. The 1-pole design targets a single live conductor, making it an ideal fit for dedicated circuits within commercial or light-industrial panels. Its Siemens heritage means compatibility with Siemens panels and a reliable, consistent performance in demanding electrical environments.\u003c\/p\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit upgrades in commercial or industrial panels that operate at 277V and require a matching 1-pole breaker.\u003c\/li\u003e \u003cli\u003eMaintenance replacements to restore original protection levels and minimize downtime.\u003c\/li\u003e \u003cli\u003eNew installations for 277V circuits where a compact, bolt-on mounting solution is preferred.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility, and installation tips\u003c\/h3\u003e\n\u003cp\u003eAlways confirm fit and ratings before ordering. The ED41B045 part number is the best reference for compatibility with Siemens panels that accept bolt-on, 1-pole 277V breakers. When replacing an existing device, verify the mounting type, pole count, and voltage match to ensure a seamless swap and reliable protection.\u003c\/p\u003e \u003ch3\u003eWhat you gain\u003c\/h3\u003e\n\u003cp\u003eClear, dependable over-current protection with a straightforward, secure installation path. This breaker supports efficient panel servicing and a smooth upgrade path for existing 277V circuits, helping you keep systems running safely and with minimal disruption.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424504238242,"sku":"ED41B045","price":365.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ed41b045-circuit-breaker-45a-1-pole-277v-bolt-737.webp?v=1789373838","url":"https:\/\/www.ampstate.com\/products\/siemens-ed41b045-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}