{"product_id":"siemens-ngg3b040l-circuit-breaker","title":"Siemens | NGG3B040L | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens NGG3B040L Circuit Breaker, a reliable \u003cstrong\u003e3-pole\u003c\/strong\u003e protection device designed for \u003cem\u003ethree-phase\u003c\/em\u003e electrical systems. Built for maintenance, retrofit, and replacement projects, this exact part number ensures seamless compatibility with Siemens panels and downstream equipment. When precision matters, NGG3B040L is your best reference for a proper fit and dependable performance.\u003c\/p\u003e \u003ch3\u003eWhy this 3-pole breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact Siemens design\u003c\/strong\u003e — NGG3B040L delivers the same mounting, terminals, and footprint as the original unit, enabling \u003cem\u003eplug-and-play\u003c\/em\u003e installation in compatible panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase protection\u003c\/strong\u003e — A dedicated 3-pole configuration that safeguards all three conductors in a motor control, distribution, or commercial\/industrial circuit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable compatibility\u003c\/strong\u003e — The part number NGG3B040L is the most accurate reference for fit and ratings, helping you avoid mismatches during maintenance or retrofit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShop-ready reliability\u003c\/strong\u003e — Siemens manufacturing standards underpin consistent trip performance and long-term durability in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptimized downtime\u003c\/strong\u003e — Using the exact replacement reduces installation risk and speeds up service windows, keeping equipment up and running sooner.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and who benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance engineers\u003c\/strong\u003e performing routine service or panel servicing with minimal disruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit projects\u003c\/strong\u003e upgrading legacy 3-phase distribution systems to maintain optimal protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacement scenarios\u003c\/strong\u003e when a failed breaker needs an exact, compatible substitute to restore coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCommercial and light industrial environments\u003c\/strong\u003e where dependable three-phase interruption protection is critical for motors, pumps, and HVAC systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical notes and setup tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e before ordering. Use the part number NGG3B040L as your primary compatibility reference.\u003c\/li\u003e \u003cli\u003ePrepare by verifying panel model, current rating, and trip characteristics so the NGG3B040L aligns with your protection strategy.\u003c\/li\u003e \u003cli\u003eKeep a spare NGG3B040L on hand for planned maintenance or unexpected outages to minimize downtime.\u003c\/li\u003e \u003cli\u003eStore and handle breakers in a clean, dry environment to preserve reliable operation when installed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Siemens NGG3B040L 3-Pole circuit breaker, you gain a purpose-built, exactly compatible component that keeps three-phase systems protected, compliant, and ready for operation. Whether you’re upgrading, repairing, or maintaining a Siemens-based distribution network, this part delivers precise fit, dependable performance, and peace of mind for your critical electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424783519906,"sku":"NGG3B040L","price":969.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ngg3b040l-circuit-breaker-3-pole-757.webp?v=1789413997","url":"https:\/\/www.ampstate.com\/products\/siemens-ngg3b040l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}