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Westinghouse NB3700S - 3-Pole 700A Molded Case Breaker

Westinghouse
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The Westinghouse NB3700S is a three-pole molded case circuit breaker from the NB Series, designed to provide overcurrent protection through its thermal magnetic mechanism. It is rated for 700A continuous current at 600VAC, with an interrupting capacity of 30kA at 480VAC, and utilizes a bolt-on connection for secure panel mounting. Weighing 61 lb, this unit features LI (Long-Time and Instantaneous) protection functions for coordinated fault response in three-phase systems. The breaker complies with industry standards for industrial power distribution and motor control applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 700A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 30kA@480V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 61 lb
  • Family: NB Series
  • Functions: LI - Long-Time and Instantaneous


Product Identification
  • Manufacturer: Westinghouse
  • Model: NB3700S