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Schneider Electric NSC400K3400K - Molded Case Circuit Breaker 400A 3P

Schneider Electric
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Schneider Electric NSC400K3400K 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 thermal-magnetic trip unit with long-time and instantaneous (LI) protection functions, rated for 690V AC systems and capable of interrupting up to 35kA at 380V. The breaker is constructed within a robust NSC400K frame with a bolt-on connection for secure installation, weighing 13 lb for its three-pole configuration. It is engineered to meet relevant industry standards for safety and performance in demanding environments. Typical applications include protecting feeders, motors, and transformers within industrial control panels and switchgear.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 690V AC
  • Current Rating: 400A
  • Frame Size: NSC400K
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA @ 380V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Connection Type: Bolt-On
  • Family: EZD Series
  • Weight: 13 lb