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Westinghouse NB3800P - Molded Case Circuit Breaker 800A 600V 3P

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Westinghouse NB3800P is a molded case circuit breaker designed for providing reliable overcurrent protection in demanding three-phase industrial power distribution systems. It features an 800A current rating and a 600V AC voltage rating, housed within a robust, compact frame measuring 5.5 in (D) x 8.25 in (H) x 8.25 in (W) and weighing 75 lb. The breaker is UL 489 certified and employs a thermal-magnetic trip unit with long-time and instantaneous (LI) functions to ensure coordinated protection, achieving a 200kA interrupting capacity at 600V. Its three-pole, feed-thru configuration is engineered for integration into switchboards and panelboards, safeguarding critical equipment in manufacturing plants, data centers, and large commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, TRI-PAC Family
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Dimensions: 5.5 in (Depth) x 8.25 in (Height) x 8.25 in (Width)
  • Standards: UL 489
  • Applications: Industrial power distribution, switchboards, panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • AIC rating: 200kA @ 600V
  • Frame Size: NB
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case
  • Mounting: Fixed
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Feed-Thru
  • Standards: UL 489
  • Weight: 75 lb
  • Country of Origin: United States


Product Identification
  • UPC: 786679766446
  • GTIN: 00786679766446