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Schneider Electric NSX400L - Molded Case Circuit Breaker 400A 690V

Schneider Electric
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Schneider Electric NSX400L is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in demanding three-phase industrial power distribution systems. It features a 400A current rating and a 690V voltage rating, with a robust thermal-magnetic trip unit offering long-time and instantaneous (LI) protection functions. The breaker is constructed as a three-pole, bolt-on unit within the compact NSX frame, weighing 12 lb, and is engineered to interrupt faults with an interrupting capacity of 150kA at 415V. It is built to meet rigorous industrial standards for safety and performance, making it suitable for installation in panelboards, switchboards, and other electrical enclosures within commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 690V AC
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 150kA @ 415V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Family/Frame: Compact NSX
  • Connection Type: Bolt-On
  • Weight: 12 lb


Product Identification
  • Manufacturer Part Number: NSX400L