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Westinghouse NB3900 - Molded Case 900A 600V 3-Pole

Westinghouse
Price
Save $-3,757.25
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The Westinghouse NB3900 is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It provides LI (Long-Time and Instantaneous) protection functions with a 900A current rating and a 600V voltage rating, featuring a bolt-on connection and thermal magnetic protection. This unit weighs 61 lb and is constructed as a Type NB breaker from the NB Series, with an AIC rating of 30kA at 480V for three-phase applications. It complies with industry standards for molded case circuit breakers, ensuring reliable performance in demanding environments. Typical applications include protecting feeders, motors, and main distribution panels in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 900A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 30kA@480V
  • Weight: 61 lb
  • Family: NB Series
  • Type: NB
  • Item Subcategory: Molded Case


Product Identification
  • UPC: Not available
  • GTIN: Not available