{"product_id":"siemens-ngg2b040l-circuit-breaker","title":"Siemens | NGG2B040L | Circuit Breaker | 40A | 2-Pole | 600V | 25kA","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens \u003cstrong\u003eNGG2B040L\u003c\/strong\u003e is a purpose-built circuit breaker designed to seamlessly replace or retrofit protection in Siemens-panel systems. With a \u003cstrong\u003e40A\u003c\/strong\u003e rating and a \u003cstrong\u003e2-pole\u003c\/strong\u003e configuration, it provides coordinated, two-line protection for 600-volt electrical distributions while delivering a robust \u003cstrong\u003e25kA interrupting capacity\u003c\/strong\u003e for demanding fault conditions.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting capacity\u003c\/strong\u003e: 25kA\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis unit is ideal for maintenance, retrofit, and replacement projects where exact compatibility with Siemens equipment is essential. The NGG2B040L is identified by its part number, making it the most reliable reference when matching it to existing panels, switchgear, and motor-control configurations. If you’re upgrading an existing Siemens installation or outfitting a new build that requires OEM-compatible protection, this breaker ensures seamless integration and predictable performance.\u003c\/p\u003e \u003ch3\u003eUse cases and ideal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and repair of Siemens control panels and switchgear that require a 40A, 2-pole protection device\u003c\/li\u003e \u003cli\u003eRetrofits where the existing protection strategy calls for a 600V class breaker with high fault-current handling\u003c\/li\u003e \u003cli\u003eReplacement in industrial machines or MCCs (motor control centers) that rely on Siemens NGG components\u003c\/li\u003e \u003cli\u003eNew equipment builds that demand exact OEM compatibility to simplify procurement and serviceability\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOEM-aligned design that minimizes field fit issues and speeds up ordering when the \u003cstrong\u003eNGG2B040L\u003c\/strong\u003e part number is referenced\u003c\/li\u003e \u003cli\u003eHigh fault tolerance for systems with potential surge or short-circuit events, thanks to its \u003cstrong\u003e25kA\u003c\/strong\u003e interrupting capacity\u003c\/li\u003e \u003cli\u003eTwo-pole protection for simultaneous interruption of both conductors, helping to maintain safe shutdown sequences\u003c\/li\u003e \u003cli\u003eClear compatibility path for existing Siemens panels and equipment, reducing downtime and replacement risk\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation and purchase tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings before ordering\u003c\/strong\u003e; the part number is the best reference for compatibility with your Siemens equipment\u003c\/li\u003e \u003cli\u003eVerify the panel or switchgear model and the corresponding Siemens protection scheme to ensure seamless substitution\u003c\/li\u003e \u003cli\u003eHandle with standard electrical safety procedures; store and transport in a clean, dry environment to preserve performance\u003c\/li\u003e \u003cli\u003eAfter installation, test the circuit protection function according to your site’s maintenance protocol to validate proper trip operation\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor technicians and procurement teams, the \u003cstrong\u003eSiemens NGG2B040L\u003c\/strong\u003e offers a precise, reliable solution that aligns with Siemens protection architectures—delivering dependable performance when it matters most in 600V distribution networks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425677103266,"sku":"NGG2B040L","price":1099.0,"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-ngg2b040l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}