{"product_id":"siemens-scld69400ngt-circuit-breaker","title":"Siemens | SCLD69400NGT | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens SCLD69400NGT circuit breaker — a purpose-built protection device for demanding three-phase power systems. With a robust 400A rating, a 3-pole configuration, and a 600V maximum, this unit is engineered to keep critical industrial, commercial, and large equipment installations safe and reliably online.\u003c\/p\u003e \u003ch2\u003eWhy this Siemens breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact compatibility you can trust\u003c\/strong\u003e: The part number SCLD69400NGT is your best reference for fit and ratings. Before ordering, double‑check that this model matches your panel and service requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current, three-phase protection\u003c\/strong\u003e: A true 3-pole design delivers balanced protection across all phases, helping prevent uneven current, overheating, and nuisance trips in demanding distribution networks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V maximum operating voltage\u003c\/strong\u003e: Designed for modern industrial and commercial environments where higher voltage distribution is common, providing reliable overcurrent interruption when needed.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e: Ideal for upgrading aging equipment, retrofitting existing panels, or replacing a failing device where the exact specifications are required to maintain system integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens reliability in critical protection\u003c\/strong\u003e: Built with the engineering attention you expect from Siemens, delivering consistent performance and predictable trip behavior when faults occur.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho this is for and practical use cases\u003c\/h2\u003e\n\u003cp\u003eThis breaker is a strong fit for facilities managers, electrical contractors, and engineers tackling panel upgrades or replacements in 3‑phase systems. Use cases include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading legacy distribution panels to meet current safety and reliability standards\u003c\/li\u003e \u003cli\u003eReplacing a failed 400A, 3‑pole, 600V protection device in commercial or light industrial racks\u003c\/li\u003e \u003cli\u003eInstalling or retrofitting service feeders and large motor circuits that require solid 3‑phase protection\u003c\/li\u003e \u003cli\u003eCoordinating protection schemes in data centers, manufacturing lines, and energy-intensive equipment rooms\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart reference: SCLD69400NGT\u003c\/li\u003e \u003cli\u003eNotes: Confirm fit and ratings before ordering; the part number is the best reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and best practices\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility and upstream protection to ensure proper coordination with adjacent breakers and devices.\u003c\/li\u003e \u003cli\u003eHave a licensed electrician perform replacement to maintain safety standards and correct torque on connections.\u003c\/li\u003e \u003cli\u003eKeep a record of the catalog number and panel model for future maintenance or warranty considerations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you need trustworthy, high-capacity protection that aligns with established Siemens panels and 3-phase systems, the SCLD69400NGT delivers the performance you rely on. It’s not just a breaker—it’s a strategic component for reliability, safety, and long-term electrical system resilience.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427470823586,"sku":"SCLD69400NGT","price":65282.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-scld69400ngt-circuit-breaker-400a-3-pole-600v-963.webp?v=1789727391","url":"https:\/\/www.ampstate.com\/products\/siemens-scld69400ngt-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}