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Schneider Electric NSX400N - Molded Case Circuit Breaker 400A 3P

Schneider Electric
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Schneider Electric NSX400N is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 400A current rating and a 690V voltage rating, housed within a compact NSX frame with a bolt-on connection for secure installation. The breaker utilizes a thermal-magnetic trip unit offering long-time and instantaneous (LI) protection functions and provides an interrupting capacity of 50kA at 415V. Constructed for durability, it weighs 12 lb and complies with relevant international standards for electrical safety and performance. Its typical applications include protecting feeders, motors, and transformers in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 690V AC
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3-Phase
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • AIC Rating: 50kA @ 415V
  • Frame Size: Compact NSX
  • Family: Compact NSX
  • Item Subcategory: Molded Case
  • Weight: 12 lb


Product Identification
  • Manufacturer: Schneider Electric
  • Model: NSX400N