{"product_id":"siemens-ngb3k015b-circuit-breaker","title":"Siemens | NGB3K015B | Circuit Breaker | 15A | 3-Pole | 347V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens NGB3K015B — a purpose-built circuit breaker engineered for reliable protection in 3-phase systems. With a 15A rating and a robust 3-pole design, this unit is tailored for maintenance, retrofit, and replacement projects where exact specifications matter. If your panel or distribution network relies on clean, consistent Siemens components, the NGB3K015B delivers the precise performance you need to keep equipment safe and downtime minimal.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 15A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 347V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NGB3K015B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-pole 347V breaker matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtects all three phases in a 3-phase circuit, providing coordinated shutdown for connected equipment and minimizing collateral damage during a fault.\u003c\/li\u003e \u003cli\u003e347V rating aligns with common commercial and light industrial distribution networks, making it a practical match for specific panel configurations without overrating or underperforming.\u003c\/li\u003e \u003cli\u003eClear, traceable reference with the exact part number (NGB3K015B) as the best compatibility guide for replacements and retrofits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service on existing Siemens-equipped panels where a direct 3-pole, 15A replacement is required.\u003c\/li\u003e \u003cli\u003eRetrofits to bring legacy systems up to current Siemens spec while preserving original form factor and protection characteristics.\u003c\/li\u003e \u003cli\u003eSpare parts strategy for facilities with predictable 3-phase load profiles, ensuring quick swaps during scheduled downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it compares to alternatives\u003c\/h3\u003e\n\u003cp\u003eWhen you’re upgrading or replacing, selecting a breaker with the exact part number and ratings matters. The NGB3K015B is designed to fit the same footprint and operate within the same electrical parameters as the original equipment it was specified for, reducing mismatch risk and service interruptions. Its Siemens pedigree translates to consistent trip characteristics, predictable performance, and simplified maintenance planning—advantages you don’t get from generic off-brand substitutes.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and maintenance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways verify fit and ratings against the specific panel or equipment before ordering. The part number NGB3K015B is the most reliable reference for compatibility.\u003c\/li\u003e \u003cli\u003eKeep a spare NGB3K015B on hand for preventive maintenance programs focused on minimizing downtime during scheduled repairs.\u003c\/li\u003e \u003cli\u003eDocument the replacement with the exact part number to streamline future ordering and panel audits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens NGB3K015B for a precise, dependable 15A, 3-pole solution in 347V circuits. Its targeted design favors professional installers and facilities managers who value exact specs, quick replacements, and long-term reliability in commercial electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426192478370,"sku":"NGB3K015B","price":13946.0,"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-ngb3k015b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}