{"product_id":"schneider-electric-nsx400l-circuit-breaker","title":"Schneider Electric | NSX400L | Circuit Breaker | 400A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSchneider Electric NSX400L 400A 3-Pole Circuit Breaker is engineered for dependable overcurrent protection in compatible low-voltage electrical systems. Identified by the part number NSX400L, this device is specifically suited for maintenance, retrofit, and replacement projects where exact specifications matter and seamless compatibility is essential.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference for compatibility:\u003c\/strong\u003e The NSX400L part number is the best reference for ensuring a correct fit—confirm both the panel and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the NSX400L for your project\u003c\/h3\u003e\n\u003cp\u003eWhen your system requires precise 400 A, 3-pole protection, the NSX400L offers a straightforward, spec-matched solution that aligns with existing electrical designs and labeling. This makes it an effective choice for upgrading or maintaining legacy installations without introducing downstream mismatches or additional wiring changes.\u003c\/p\u003e \u003ch3\u003eIdeal use cases and practical benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Restore circuit protection quickly by replacing aging or failed breakers in 3-pole configurations that match NSX400L specifications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit:\u003c\/strong\u003e Standardize protection across panels by swapping in a 400 A, 3-pole device when upgrading related systems or coordinating spare parts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacement:\u003c\/strong\u003e Simplify ordering and inventory with a clearly referenced part number that aligns with Schneider Electric documentation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and practical purchasing tips\u003c\/h3\u003e\n\u003cp\u003eBefore purchasing, verify fit and ratings using the NSX400L part number as your primary reference. This ensures the breaker will integrate with your panel’s design, labeling, and protection scheme. If you’re replacing an existing device, cross-check the amperage (400 A) and the 3-pole configuration to avoid mismatches that could affect tripping behavior or enclosure fit.\u003c\/p\u003e \u003cp\u003eInstallation and safety notes\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eArrange for service with the power off and follow local electrical codes and manufacturer installation guidelines.\u003c\/li\u003e \u003cli\u003eKeep a spare NSX400L on hand for planned maintenance to minimize downtime and maintain continuous protection for critical circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":46426428833954,"sku":"NSX400L","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schneider-electric-nsx400l-circuit-breaker-400a-3-pole-944.webp?v=1789575201","url":"https:\/\/www.ampstate.com\/products\/schneider-electric-nsx400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}