{"product_id":"siemens-neb3b045b-circuit-breaker","title":"Siemens | NEB3B045B | Circuit Breaker | 45A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens NEB3B045B Circuit Breaker — a precise 45A, 3-pole protection device engineered for 600V three-phase systems. Designed to support maintenance, retrofit, and replacement projects, this part is the exact Siemens reference you need when your panel requires a perfect-spec alignment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NEB3B045B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this matters\u003c\/h2\u003e\n\u003cp\u003eIn a 3-phase setup, a three-pole breaker protects all three hot legs simultaneously, ensuring balanced interruption across the circuit and safeguarding motors, drives, and other equipment connected to the distribution network. A 600V rating makes this breaker suitable for higher-voltage panels common in industrial and commercial environments, while the 45A rating provides appropriate current protection for mid-range loads. Choosing an exact Siemens part helps maintain consistent trip characteristics and system behavior after service or upgrades.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service: perform a like-for-like replacement to minimize downtime and keep panel performance consistent.\u003c\/li\u003e \u003cli\u003eRetrofit projects: upgrade older protection with a Siemens-certified component that matches existing wiring and trip expectations.\u003c\/li\u003e \u003cli\u003ePanel replacements and reconfigurations: reliable protection for expanding or reorganizing 3-phase distributions in factories, warehouses, and facilities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and installation tips\u003c\/h2\u003e\n\u003cp\u003eNotes: Confirm fit and ratings before ordering. The part number \u003cstrong\u003eNEB3B045B\u003c\/strong\u003e is the best reference for compatibility, so cross-check your panel literature and labeling before purchase. When installing, follow standard safety protocols: de-energize the system, verify zero voltage, and ensure all conductors are properly seated before seating the new breaker.\u003c\/p\u003e \u003ch2\u003ePractical considerations and care\u003c\/h2\u003e\n\u003cp\u003eStore the component in a clean, dry environment and keep it with the intended equipment to prevent mismatches in mounting or trip characteristics. Using the exact Siemens part ensures predictable performance and helps preserve the integrity of your 3-phase protection scheme.\u003c\/p\u003e \u003ch2\u003eInformed purchase decisions\u003c\/h2\u003e\n\u003cp\u003eIf your project requires a genuine, like-for-like solution for a 3-phase, 600V distribution, the \u003cstrong\u003eSiemens NEB3B045B\u003c\/strong\u003e offers a straightforward, reliable upgrade path that aligns with Siemens design standards and installation practices. This is the targeted component you need for confident maintenance, retrofit, and replacement work.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424794988706,"sku":"NEB3B045B","price":3556.0,"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-neb3b045b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}